diff --git a/Configure b/Configure index de78469..26743bb 100755 --- a/Configure +++ b/Configure @@ -136,7 +136,8 @@ my $alpha_asm="alphacpuid.o:bn_asm.o alpha-mont.o:::::sha1-alpha.o:::::::ghash-a my $mips32_asm=":bn-mips.o::aes_cbc.o aes-mips.o:::sha1-mips.o sha256-mips.o::::::::"; my $mips64_asm=":bn-mips.o mips-mont.o::aes_cbc.o aes-mips.o:::sha1-mips.o sha256-mips.o sha512-mips.o::::::::"; my $s390x_asm="s390xcap.o s390xcpuid.o:bn-s390x.o s390x-mont.o s390x-gf2m.o::aes-s390x.o aes-ctr.o aes-xts.o:::sha1-s390x.o sha256-s390x.o sha512-s390x.o::rc4-s390x.o:::::ghash-s390x.o:"; -my $armv4_asm="armcap.o armv4cpuid.o:bn_asm.o armv4-mont.o armv4-gf2m.o::aes_cbc.o aes-armv4.o:::sha1-armv4-large.o sha256-armv4.o sha512-armv4.o:::::::ghash-armv4.o::void"; +my $armv4_asm="armcap.o armv4cpuid.o:bn_asm.o armv4-mont.o armv4-gf2m.o::aes_cbc.o aes-armv4.o bsaes-armv7.o aesv8-armx.o:::sha1-armv4-large.o sha256-armv4.o sha512-armv4.o:::::::ghash-armv4.o ghashv8-armx.o::void"; +my $aarch64_asm="armcap.o arm64cpuid.o mem_clr.o:::aes_core.o aes_cbc.o aesv8-armx.o:::sha1-armv8.o sha256-armv8.o sha512-armv8.o:::::::ghashv8-armx.o:"; my $parisc11_asm="pariscid.o:bn_asm.o parisc-mont.o::aes_core.o aes_cbc.o aes-parisc.o:::sha1-parisc.o sha256-parisc.o sha512-parisc.o::rc4-parisc.o:::::ghash-parisc.o::32"; my $parisc20_asm="pariscid.o:pa-risc2W.o parisc-mont.o::aes_core.o aes_cbc.o aes-parisc.o:::sha1-parisc.o sha256-parisc.o sha512-parisc.o::rc4-parisc.o:::::ghash-parisc.o::64"; my $ppc32_asm="ppccpuid.o ppccap.o:bn-ppc.o ppc-mont.o ppc64-mont.o::aes_core.o aes_cbc.o aes-ppc.o:::sha1-ppc.o sha256-ppc.o::::::::"; @@ -350,6 +351,7 @@ my %table=( # It's believed that majority of ARM toolchains predefine appropriate -march. # If you compiler does not, do complement config command line with one! "linux-armv4", "gcc:-DTERMIO -O3 -Wall::-D_REENTRANT::-ldl:BN_LLONG RC4_CHAR RC4_CHUNK DES_INT DES_UNROLL BF_PTR:${armv4_asm}:dlfcn:linux-shared:-fPIC::.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)", +"linux-aarch64","gcc:-DTERMIO -O3 -Wall::-D_REENTRANT::-ldl:SIXTY_FOUR_BIT_LONG RC4_CHAR RC4_CHUNK DES_INT DES_UNROLL BF_PTR:${aarch64_asm}:linux64:dlfcn:linux-shared:-fPIC::.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)", #### IA-32 targets... "linux-ia32-icc", "icc:-DL_ENDIAN -DTERMIO -O2 -no_cpprt::-D_REENTRANT::-ldl:BN_LLONG ${x86_gcc_des} ${x86_gcc_opts}:${x86_elf_asm}:dlfcn:linux-shared:-KPIC::.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)", "linux-elf", "gcc:-DL_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -Wall::-D_REENTRANT::-ldl:BN_LLONG ${x86_gcc_des} ${x86_gcc_opts}:${x86_elf_asm}:dlfcn:linux-shared:-fPIC::.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)", @@ -1503,7 +1505,7 @@ if ($rmd160_obj =~ /\.o$/) } if ($aes_obj =~ /\.o$/) { - $cflags.=" -DAES_ASM"; + $cflags.=" -DAES_ASM" if ($aes_obj =~ m/\baes\-/);; # aes-ctr.o is not a real file, only indication that assembler # module implements AES_ctr32_encrypt... $cflags.=" -DAES_CTR_ASM" if ($aes_obj =~ s/\s*aes\-ctr\.o//); @@ -1525,7 +1527,7 @@ else { $wp_obj="wp_block.o"; } $cmll_obj=$cmll_enc unless ($cmll_obj =~ /.o$/); -if ($modes_obj =~ /ghash/) +if ($modes_obj =~ /ghash\-/) { $cflags.=" -DGHASH_ASM"; } diff --git a/config b/config index 41fa2a6..dff7df7 100755 --- a/config +++ b/config @@ -644,6 +644,7 @@ case "$GUESSOS" in armv[1-3]*-*-linux2) OUT="linux-generic32" ;; armv[7-9]*-*-linux2) OUT="linux-armv4"; options="$options -march=armv7-a" ;; arm*-*-linux2) OUT="linux-armv4" ;; + aarch64-*-linux2) OUT="linux-aarch64" ;; sh*b-*-linux2) OUT="linux-generic32"; options="$options -DB_ENDIAN" ;; sh*-*-linux2) OUT="linux-generic32"; options="$options -DL_ENDIAN" ;; m68k*-*-linux2) OUT="linux-generic32"; options="$options -DB_ENDIAN" ;; diff --git a/crypto/aes/Makefile b/crypto/aes/Makefile index 45ede0a..9181a1a 100644 --- a/crypto/aes/Makefile +++ b/crypto/aes/Makefile @@ -78,9 +78,15 @@ aes-parisc.s: asm/aes-parisc.pl aes-mips.S: asm/aes-mips.pl $(PERL) asm/aes-mips.pl $(PERLASM_SCHEME) $@ +aesv8-armx.S: asm/aesv8-armx.pl + $(PERL) asm/aesv8-armx.pl $(PERLASM_SCHEME) $@ +aesv8-armx.o: aesv8-armx.S + # GNU make "catch all" aes-%.S: asm/aes-%.pl; $(PERL) $< $(PERLASM_SCHEME) > $@ aes-armv4.o: aes-armv4.S +bsaes-%.S: asm/bsaes-%.pl; $(PERL) $< $(PERLASM_SCHEME) $@ +bsaes-armv7.o: bsaes-armv7.S files: $(PERL) $(TOP)/util/files.pl Makefile >> $(TOP)/MINFO diff --git a/crypto/aes/asm/aes-armv4.pl b/crypto/aes/asm/aes-armv4.pl index 86b86c4..4f89170 100644 --- a/crypto/aes/asm/aes-armv4.pl +++ b/crypto/aes/asm/aes-armv4.pl @@ -1,7 +1,7 @@ #!/usr/bin/env perl # ==================================================================== -# Written by Andy Polyakov for the OpenSSL +# Written by Andy Polyakov for the OpenSSL # project. The module is, however, dual licensed under OpenSSL and # CRYPTOGAMS licenses depending on where you obtain it. For further # details see http://www.openssl.org/~appro/cryptogams/. @@ -51,9 +51,23 @@ $key="r11"; $rounds="r12"; $code=<<___; -#include "arm_arch.h" +#ifndef __KERNEL__ +# include "arm_arch.h" +#else +# define __ARM_ARCH__ __LINUX_ARM_ARCH__ +#endif + .text +#if __ARM_ARCH__<7 +.code 32 +#else +.syntax unified +# ifdef __thumb2__ +.thumb +# else .code 32 +# endif +#endif .type AES_Te,%object .align 5 @@ -167,7 +181,11 @@ AES_Te: .type AES_encrypt,%function .align 5 AES_encrypt: +#if __ARM_ARCH__<7 sub r3,pc,#8 @ AES_encrypt +#else + adr r3,AES_encrypt +#endif stmdb sp!,{r1,r4-r12,lr} mov $rounds,r0 @ inp mov $key,r2 @@ -409,11 +427,21 @@ _armv4_AES_encrypt: .align 5 private_AES_set_encrypt_key: _armv4_AES_set_encrypt_key: +#if __ARM_ARCH__<7 sub r3,pc,#8 @ AES_set_encrypt_key +#else + adr r3,private_AES_set_encrypt_key +#endif teq r0,#0 +#if __ARM_ARCH__>=7 + itt eq @ Thumb2 thing, sanity check in ARM +#endif moveq r0,#-1 beq .Labrt teq r2,#0 +#if __ARM_ARCH__>=7 + itt eq @ Thumb2 thing, sanity check in ARM +#endif moveq r0,#-1 beq .Labrt @@ -422,6 +450,9 @@ _armv4_AES_set_encrypt_key: teq r1,#192 beq .Lok teq r1,#256 +#if __ARM_ARCH__>=7 + itt ne @ Thumb2 thing, sanity check in ARM +#endif movne r0,#-1 bne .Labrt @@ -576,6 +607,9 @@ _armv4_AES_set_encrypt_key: str $s2,[$key,#-16] subs $rounds,$rounds,#1 str $s3,[$key,#-12] +#if __ARM_ARCH__>=7 + itt eq @ Thumb2 thing, sanity check in ARM +#endif subeq r2,$key,#216 beq .Ldone @@ -645,6 +679,9 @@ _armv4_AES_set_encrypt_key: str $s2,[$key,#-24] subs $rounds,$rounds,#1 str $s3,[$key,#-20] +#if __ARM_ARCH__>=7 + itt eq @ Thumb2 thing, sanity check in ARM +#endif subeq r2,$key,#256 beq .Ldone @@ -674,11 +711,17 @@ _armv4_AES_set_encrypt_key: str $i3,[$key,#-4] b .L256_loop +.align 2 .Ldone: mov r0,#0 ldmia sp!,{r4-r12,lr} -.Labrt: tst lr,#1 +.Labrt: +#if __ARM_ARCH__>=5 + ret @ bx lr +#else + tst lr,#1 moveq pc,lr @ be binary compatible with V4, yet bx lr @ interoperable with Thumb ISA:-) +#endif .size private_AES_set_encrypt_key,.-private_AES_set_encrypt_key .global private_AES_set_decrypt_key @@ -688,34 +731,57 @@ private_AES_set_decrypt_key: str lr,[sp,#-4]! @ push lr bl _armv4_AES_set_encrypt_key teq r0,#0 - ldrne lr,[sp],#4 @ pop lr + ldr lr,[sp],#4 @ pop lr bne .Labrt - stmdb sp!,{r4-r12} + mov r0,r2 @ AES_set_encrypt_key preserves r2, + mov r1,r2 @ which is AES_KEY *key + b _armv4_AES_set_enc2dec_key +.size private_AES_set_decrypt_key,.-private_AES_set_decrypt_key - ldr $rounds,[r2,#240] @ AES_set_encrypt_key preserves r2, - mov $key,r2 @ which is AES_KEY *key - mov $i1,r2 - add $i2,r2,$rounds,lsl#4 +@ void AES_set_enc2dec_key(const AES_KEY *inp,AES_KEY *out) +.global AES_set_enc2dec_key +.type AES_set_enc2dec_key,%function +.align 5 +AES_set_enc2dec_key: +_armv4_AES_set_enc2dec_key: + stmdb sp!,{r4-r12,lr} + + ldr $rounds,[r0,#240] + mov $i1,r0 @ input + add $i2,r0,$rounds,lsl#4 + mov $key,r1 @ ouput + add $tbl,r1,$rounds,lsl#4 + str $rounds,[r1,#240] + +.Linv: ldr $s0,[$i1],#16 + ldr $s1,[$i1,#-12] + ldr $s2,[$i1,#-8] + ldr $s3,[$i1,#-4] + ldr $t1,[$i2],#-16 + ldr $t2,[$i2,#16+4] + ldr $t3,[$i2,#16+8] + ldr $i3,[$i2,#16+12] + str $s0,[$tbl],#-16 + str $s1,[$tbl,#16+4] + str $s2,[$tbl,#16+8] + str $s3,[$tbl,#16+12] + str $t1,[$key],#16 + str $t2,[$key,#-12] + str $t3,[$key,#-8] + str $i3,[$key,#-4] + teq $i1,$i2 + bne .Linv -.Linv: ldr $s0,[$i1] + ldr $s0,[$i1] ldr $s1,[$i1,#4] ldr $s2,[$i1,#8] ldr $s3,[$i1,#12] - ldr $t1,[$i2] - ldr $t2,[$i2,#4] - ldr $t3,[$i2,#8] - ldr $i3,[$i2,#12] - str $s0,[$i2],#-16 - str $s1,[$i2,#16+4] - str $s2,[$i2,#16+8] - str $s3,[$i2,#16+12] - str $t1,[$i1],#16 - str $t2,[$i1,#-12] - str $t3,[$i1,#-8] - str $i3,[$i1,#-4] - teq $i1,$i2 - bne .Linv + str $s0,[$key] + str $s1,[$key,#4] + str $s2,[$key,#8] + str $s3,[$key,#12] + sub $key,$key,$rounds,lsl#3 ___ $mask80=$i1; $mask1b=$i2; @@ -773,7 +839,7 @@ $code.=<<___; moveq pc,lr @ be binary compatible with V4, yet bx lr @ interoperable with Thumb ISA:-) #endif -.size private_AES_set_decrypt_key,.-private_AES_set_decrypt_key +.size AES_set_enc2dec_key,.-AES_set_enc2dec_key .type AES_Td,%object .align 5 @@ -883,7 +949,11 @@ AES_Td: .type AES_decrypt,%function .align 5 AES_decrypt: +#if __ARM_ARCH__<7 sub r3,pc,#8 @ AES_decrypt +#else + adr r3,AES_decrypt +#endif stmdb sp!,{r1,r4-r12,lr} mov $rounds,r0 @ inp mov $key,r2 @@ -1080,8 +1150,9 @@ _armv4_AES_decrypt: ldrb $t3,[$tbl,$i3] @ Td4[s0>>0] and $i3,lr,$s1,lsr#8 + add $s1,$tbl,$s1,lsr#24 ldrb $i1,[$tbl,$i1] @ Td4[s1>>0] - ldrb $s1,[$tbl,$s1,lsr#24] @ Td4[s1>>24] + ldrb $s1,[$s1] @ Td4[s1>>24] ldrb $i2,[$tbl,$i2] @ Td4[s1>>16] eor $s0,$i1,$s0,lsl#24 ldrb $i3,[$tbl,$i3] @ Td4[s1>>8] @@ -1094,7 +1165,8 @@ _armv4_AES_decrypt: ldrb $i2,[$tbl,$i2] @ Td4[s2>>0] and $i3,lr,$s2,lsr#16 - ldrb $s2,[$tbl,$s2,lsr#24] @ Td4[s2>>24] + add $s2,$tbl,$s2,lsr#24 + ldrb $s2,[$s2] @ Td4[s2>>24] eor $s0,$s0,$i1,lsl#8 ldrb $i3,[$tbl,$i3] @ Td4[s2>>16] eor $s1,$i2,$s1,lsl#16 @@ -1106,8 +1178,9 @@ _armv4_AES_decrypt: ldrb $i2,[$tbl,$i2] @ Td4[s3>>8] and $i3,lr,$s3 @ i2 + add $s3,$tbl,$s3,lsr#24 ldrb $i3,[$tbl,$i3] @ Td4[s3>>0] - ldrb $s3,[$tbl,$s3,lsr#24] @ Td4[s3>>24] + ldrb $s3,[$s3] @ Td4[s3>>24] eor $s0,$s0,$i1,lsl#16 ldr $i1,[$key,#0] eor $s1,$s1,$i2,lsl#8 @@ -1130,5 +1203,15 @@ _armv4_AES_decrypt: ___ $code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4 +$code =~ s/\bret\b/bx\tlr/gm; + +open SELF,$0; +while() { + next if (/^#!/); + last if (!s/^#/@/ and !/^$/); + print; +} +close SELF; + print $code; close STDOUT; # enforce flush diff --git a/crypto/aes/asm/aesv8-armx.pl b/crypto/aes/asm/aesv8-armx.pl new file mode 100755 index 0000000..415dc04 --- /dev/null +++ b/crypto/aes/asm/aesv8-armx.pl @@ -0,0 +1,980 @@ +#!/usr/bin/env perl +# +# ==================================================================== +# Written by Andy Polyakov for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# ==================================================================== +# +# This module implements support for ARMv8 AES instructions. The +# module is endian-agnostic in sense that it supports both big- and +# little-endian cases. As does it support both 32- and 64-bit modes +# of operation. Latter is achieved by limiting amount of utilized +# registers to 16, which implies additional instructions. This has +# no effect on mighty Apple A7, as results are literally equal to +# the theoretical estimates based on instruction latencies and issue +# rate. It remains to be seen how does it affect other platforms... +# +# Performance in cycles per byte processed with 128-bit key: +# +# CBC enc CBC dec CTR +# Apple A7 2.39 1.20 1.20 +# Cortex-A5x n/a n/a n/a + +$flavour = shift; +open STDOUT,">".shift; + +$prefix="aes_v8"; + +$code=<<___; +#include "arm_arch.h" + +#if __ARM_ARCH__>=7 +.text +___ +$code.=".arch armv8-a+crypto\n" if ($flavour =~ /64/); +$code.=".fpu neon\n.code 32\n" if ($flavour !~ /64/); + +# Assembler mnemonics are an eclectic mix of 32- and 64-bit syntax, +# NEON is mostly 32-bit mnemonics, integer - mostly 64. Goal is to +# maintain both 32- and 64-bit codes within single module and +# transliterate common code to either flavour with regex vodoo. +# +{{{ +my ($inp,$bits,$out,$ptr,$rounds)=("x0","w1","x2","x3","w12"); +my ($zero,$rcon,$mask,$in0,$in1,$tmp,$key)= + $flavour=~/64/? map("q$_",(0..6)) : map("q$_",(0..3,8..10)); + + +$code.=<<___; +.align 5 +rcon: +.long 0x01,0x01,0x01,0x01 +.long 0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d // rotate-n-splat +.long 0x1b,0x1b,0x1b,0x1b + +.globl ${prefix}_set_encrypt_key +.type ${prefix}_set_encrypt_key,%function +.align 5 +${prefix}_set_encrypt_key: +.Lenc_key: +___ +$code.=<<___ if ($flavour =~ /64/); + stp x29,x30,[sp,#-16]! + add x29,sp,#0 +___ +$code.=<<___; + adr $ptr,rcon + cmp $bits,#192 + + veor $zero,$zero,$zero + vld1.8 {$in0},[$inp],#16 + mov $bits,#8 // reuse $bits + vld1.32 {$rcon,$mask},[$ptr],#32 + + b.lt .Loop128 + b.eq .L192 + b .L256 + +.align 4 +.Loop128: + vtbl.8 $key,{$in0},$mask + vext.8 $tmp,$zero,$in0,#12 + vst1.32 {$in0},[$out],#16 + aese $key,$zero + subs $bits,$bits,#1 + + veor $in0,$in0,$tmp + vext.8 $tmp,$zero,$tmp,#12 + veor $in0,$in0,$tmp + vext.8 $tmp,$zero,$tmp,#12 + veor $key,$key,$rcon + veor $in0,$in0,$tmp + vshl.u8 $rcon,$rcon,#1 + veor $in0,$in0,$key + b.ne .Loop128 + + vld1.32 {$rcon},[$ptr] + + vtbl.8 $key,{$in0},$mask + vext.8 $tmp,$zero,$in0,#12 + vst1.32 {$in0},[$out],#16 + aese $key,$zero + + veor $in0,$in0,$tmp + vext.8 $tmp,$zero,$tmp,#12 + veor $in0,$in0,$tmp + vext.8 $tmp,$zero,$tmp,#12 + veor $key,$key,$rcon + veor $in0,$in0,$tmp + vshl.u8 $rcon,$rcon,#1 + veor $in0,$in0,$key + + vtbl.8 $key,{$in0},$mask + vext.8 $tmp,$zero,$in0,#12 + vst1.32 {$in0},[$out],#16 + aese $key,$zero + + veor $in0,$in0,$tmp + vext.8 $tmp,$zero,$tmp,#12 + veor $in0,$in0,$tmp + vext.8 $tmp,$zero,$tmp,#12 + veor $key,$key,$rcon + veor $in0,$in0,$tmp + veor $in0,$in0,$key + vst1.32 {$in0},[$out] + add $out,$out,#0x50 + + mov $rounds,#10 + b .Ldone + +.align 4 +.L192: + vld1.8 {$in1},[$inp],#8 + vmov.i8 $key,#8 // borrow $key + vst1.32 {$in0},[$out],#16 + vsub.i8 $mask,$mask,$key // adjust the mask + +.Loop192: + vtbl.8 $key,{$in1},$mask + vext.8 $tmp,$zero,$in0,#12 + vst1.32 {$in1},[$out],#8 + aese $key,$zero + subs $bits,$bits,#1 + + veor $in0,$in0,$tmp + vext.8 $tmp,$zero,$tmp,#12 + veor $in0,$in0,$tmp + vext.8 $tmp,$zero,$tmp,#12 + veor $in0,$in0,$tmp + + vdup.32 $tmp,${in0}[3] + veor $tmp,$tmp,$in1 + veor $key,$key,$rcon + vext.8 $in1,$zero,$in1,#12 + vshl.u8 $rcon,$rcon,#1 + veor $in1,$in1,$tmp + veor $in0,$in0,$key + veor $in1,$in1,$key + vst1.32 {$in0},[$out],#16 + b.ne .Loop192 + + mov $rounds,#12 + add $out,$out,#0x20 + b .Ldone + +.align 4 +.L256: + vld1.8 {$in1},[$inp] + mov $bits,#7 + mov $rounds,#14 + vst1.32 {$in0},[$out],#16 + +.Loop256: + vtbl.8 $key,{$in1},$mask + vext.8 $tmp,$zero,$in0,#12 + vst1.32 {$in1},[$out],#16 + aese $key,$zero + subs $bits,$bits,#1 + + veor $in0,$in0,$tmp + vext.8 $tmp,$zero,$tmp,#12 + veor $in0,$in0,$tmp + vext.8 $tmp,$zero,$tmp,#12 + veor $key,$key,$rcon + veor $in0,$in0,$tmp + vshl.u8 $rcon,$rcon,#1 + veor $in0,$in0,$key + vst1.32 {$in0},[$out],#16 + b.eq .Ldone + + vdup.32 $key,${in0}[3] // just splat + vext.8 $tmp,$zero,$in1,#12 + aese $key,$zero + + veor $in1,$in1,$tmp + vext.8 $tmp,$zero,$tmp,#12 + veor $in1,$in1,$tmp + vext.8 $tmp,$zero,$tmp,#12 + veor $in1,$in1,$tmp + + veor $in1,$in1,$key + b .Loop256 + +.Ldone: + str $rounds,[$out] + + eor x0,x0,x0 // return value + `"ldr x29,[sp],#16" if ($flavour =~ /64/)` + ret +.size ${prefix}_set_encrypt_key,.-${prefix}_set_encrypt_key + +.globl ${prefix}_set_decrypt_key +.type ${prefix}_set_decrypt_key,%function +.align 5 +${prefix}_set_decrypt_key: +___ +$code.=<<___ if ($flavour =~ /64/); + stp x29,x30,[sp,#-16]! + add x29,sp,#0 +___ +$code.=<<___ if ($flavour !~ /64/); + stmdb sp!,{r4,lr} +___ +$code.=<<___; + bl .Lenc_key + + sub $out,$out,#240 // restore original $out + mov x4,#-16 + add $inp,$out,x12,lsl#4 // end of key schedule + + vld1.32 {v0.16b},[$out] + vld1.32 {v1.16b},[$inp] + vst1.32 {v0.16b},[$inp],x4 + vst1.32 {v1.16b},[$out],#16 + +.Loop_imc: + vld1.32 {v0.16b},[$out] + vld1.32 {v1.16b},[$inp] + aesimc v0.16b,v0.16b + aesimc v1.16b,v1.16b + vst1.32 {v0.16b},[$inp],x4 + vst1.32 {v1.16b},[$out],#16 + cmp $inp,$out + b.hi .Loop_imc + + vld1.32 {v0.16b},[$out] + aesimc v0.16b,v0.16b + vst1.32 {v0.16b},[$inp] + + eor x0,x0,x0 // return value +___ +$code.=<<___ if ($flavour !~ /64/); + ldmia sp!,{r4,pc} +___ +$code.=<<___ if ($flavour =~ /64/); + ldp x29,x30,[sp],#16 + ret +___ +$code.=<<___; +.size ${prefix}_set_decrypt_key,.-${prefix}_set_decrypt_key +___ +}}} +{{{ +sub gen_block () { +my $dir = shift; +my ($e,$mc) = $dir eq "en" ? ("e","mc") : ("d","imc"); +my ($inp,$out,$key)=map("x$_",(0..2)); +my $rounds="w3"; +my ($rndkey0,$rndkey1,$inout)=map("q$_",(0..3)); + +$code.=<<___; +.globl ${prefix}_${dir}crypt +.type ${prefix}_${dir}crypt,%function +.align 5 +${prefix}_${dir}crypt: + ldr $rounds,[$key,#240] + vld1.32 {$rndkey0},[$key],#16 + vld1.8 {$inout},[$inp] + sub $rounds,$rounds,#2 + vld1.32 {$rndkey1},[$key],#16 + +.Loop_${dir}c: + aes$e $inout,$rndkey0 + vld1.32 {$rndkey0},[$key],#16 + aes$mc $inout,$inout + subs $rounds,$rounds,#2 + aes$e $inout,$rndkey1 + vld1.32 {$rndkey1},[$key],#16 + aes$mc $inout,$inout + b.gt .Loop_${dir}c + + aes$e $inout,$rndkey0 + vld1.32 {$rndkey0},[$key] + aes$mc $inout,$inout + aes$e $inout,$rndkey1 + veor $inout,$inout,$rndkey0 + + vst1.8 {$inout},[$out] + ret +.size ${prefix}_${dir}crypt,.-${prefix}_${dir}crypt +___ +} +&gen_block("en"); +&gen_block("de"); +}}} +{{{ +my ($inp,$out,$len,$key,$ivp)=map("x$_",(0..4)); my $enc="w5"; +my ($rounds,$cnt,$key_,$step,$step1)=($enc,"w6","x7","x8","x12"); +my ($dat0,$dat1,$in0,$in1,$tmp0,$tmp1,$ivec,$rndlast)=map("q$_",(0..7)); + +my ($dat,$tmp,$rndzero_n_last)=($dat0,$tmp0,$tmp1); + +### q8-q15 preloaded key schedule + +$code.=<<___; +.globl ${prefix}_cbc_encrypt +.type ${prefix}_cbc_encrypt,%function +.align 5 +${prefix}_cbc_encrypt: +___ +$code.=<<___ if ($flavour =~ /64/); + stp x29,x30,[sp,#-16]! + add x29,sp,#0 +___ +$code.=<<___ if ($flavour !~ /64/); + mov ip,sp + stmdb sp!,{r4-r8,lr} + vstmdb sp!,{d8-d15} @ ABI specification says so + ldmia ip,{r4-r5} @ load remaining args +___ +$code.=<<___; + subs $len,$len,#16 + mov $step,#16 + b.lo .Lcbc_abort + cclr $step,eq + + cmp $enc,#0 // en- or decrypting? + ldr $rounds,[$key,#240] + and $len,$len,#-16 + vld1.8 {$ivec},[$ivp] + vld1.8 {$dat},[$inp],$step + + vld1.32 {q8-q9},[$key] // load key schedule... + sub $rounds,$rounds,#6 + add $key_,$key,x5,lsl#4 // pointer to last 7 round keys + sub $rounds,$rounds,#2 + vld1.32 {q10-q11},[$key_],#32 + vld1.32 {q12-q13},[$key_],#32 + vld1.32 {q14-q15},[$key_],#32 + vld1.32 {$rndlast},[$key_] + + add $key_,$key,#32 + mov $cnt,$rounds + b.eq .Lcbc_dec + + cmp $rounds,#2 + veor $dat,$dat,$ivec + veor $rndzero_n_last,q8,$rndlast + b.eq .Lcbc_enc128 + +.Loop_cbc_enc: + aese $dat,q8 + vld1.32 {q8},[$key_],#16 + aesmc $dat,$dat + subs $cnt,$cnt,#2 + aese $dat,q9 + vld1.32 {q9},[$key_],#16 + aesmc $dat,$dat + b.gt .Loop_cbc_enc + + aese $dat,q8 + aesmc $dat,$dat + subs $len,$len,#16 + aese $dat,q9 + aesmc $dat,$dat + cclr $step,eq + aese $dat,q10 + aesmc $dat,$dat + add $key_,$key,#16 + aese $dat,q11 + aesmc $dat,$dat + vld1.8 {q8},[$inp],$step + aese $dat,q12 + aesmc $dat,$dat + veor q8,q8,$rndzero_n_last + aese $dat,q13 + aesmc $dat,$dat + vld1.32 {q9},[$key_],#16 // re-pre-load rndkey[1] + aese $dat,q14 + aesmc $dat,$dat + aese $dat,q15 + + mov $cnt,$rounds + veor $ivec,$dat,$rndlast + vst1.8 {$ivec},[$out],#16 + b.hs .Loop_cbc_enc + + b .Lcbc_done + +.align 5 +.Lcbc_enc128: + vld1.32 {$in0-$in1},[$key_] + aese $dat,q8 + aesmc $dat,$dat + b .Lenter_cbc_enc128 +.Loop_cbc_enc128: + aese $dat,q8 + aesmc $dat,$dat + vst1.8 {$ivec},[$out],#16 +.Lenter_cbc_enc128: + aese $dat,q9 + aesmc $dat,$dat + subs $len,$len,#16 + aese $dat,$in0 + aesmc $dat,$dat + cclr $step,eq + aese $dat,$in1 + aesmc $dat,$dat + aese $dat,q10 + aesmc $dat,$dat + aese $dat,q11 + aesmc $dat,$dat + vld1.8 {q8},[$inp],$step + aese $dat,q12 + aesmc $dat,$dat + aese $dat,q13 + aesmc $dat,$dat + aese $dat,q14 + aesmc $dat,$dat + veor q8,q8,$rndzero_n_last + aese $dat,q15 + veor $ivec,$dat,$rndlast + b.hs .Loop_cbc_enc128 + + vst1.8 {$ivec},[$out],#16 + b .Lcbc_done + +.align 5 +.Lcbc_dec128: + vld1.32 {$tmp0-$tmp1},[$key_] + veor $ivec,$ivec,$rndlast + veor $in0,$dat0,$rndlast + mov $step1,$step + +.Loop2x_cbc_dec128: + aesd $dat0,q8 + aesd $dat1,q8 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + subs $len,$len,#32 + aesd $dat0,q9 + aesd $dat1,q9 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + cclr $step,lo + aesd $dat0,$tmp0 + aesd $dat1,$tmp0 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + cclr $step1,ls + aesd $dat0,$tmp1 + aesd $dat1,$tmp1 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + aesd $dat0,q10 + aesd $dat1,q10 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + aesd $dat0,q11 + aesd $dat1,q11 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + aesd $dat0,q12 + aesd $dat1,q12 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + aesd $dat0,q13 + aesd $dat1,q13 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + aesd $dat0,q14 + aesd $dat1,q14 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + aesd $dat0,q15 + aesd $dat1,q15 + + veor $ivec,$ivec,$dat0 + vld1.8 {$dat0},[$inp],$step + veor $in0,$in0,$dat1 + vld1.8 {$dat1},[$inp],$step1 + vst1.8 {$ivec},[$out],#16 + veor $ivec,$in1,$rndlast + vst1.8 {$in0},[$out],#16 + veor $in0,$dat0,$rndlast + vorr $in1,$dat1,$dat1 + b.hs .Loop2x_cbc_dec128 + + adds $len,$len,#32 + veor $ivec,$ivec,$rndlast + b.eq .Lcbc_done + veor $in0,$in0,$rndlast + b .Lcbc_dec_tail + +.align 5 +.Lcbc_dec: + subs $len,$len,#16 + vorr $in0,$dat,$dat + b.lo .Lcbc_dec_tail + + cclr $step,eq + cmp $rounds,#2 + vld1.8 {$dat1},[$inp],$step + vorr $in1,$dat1,$dat1 + b.eq .Lcbc_dec128 + +.Loop2x_cbc_dec: + aesd $dat0,q8 + aesd $dat1,q8 + vld1.32 {q8},[$key_],#16 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + subs $cnt,$cnt,#2 + aesd $dat0,q9 + aesd $dat1,q9 + vld1.32 {q9},[$key_],#16 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + b.gt .Loop2x_cbc_dec + + aesd $dat0,q8 + aesd $dat1,q8 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + veor $tmp0,$ivec,$rndlast + veor $tmp1,$in0,$rndlast + aesd $dat0,q9 + aesd $dat1,q9 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + vorr $ivec,$in1,$in1 + subs $len,$len,#32 + aesd $dat0,q10 + aesd $dat1,q10 + aesimc $dat0,$dat0 + cclr $step,lo + aesimc $dat1,$dat1 + mov $key_,$key + aesd $dat0,q11 + aesd $dat1,q11 + aesimc $dat0,$dat0 + vld1.8 {$in0},[$inp],$step + aesimc $dat1,$dat1 + cclr $step,ls + aesd $dat0,q12 + aesd $dat1,q12 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + vld1.8 {$in1},[$inp],$step + aesd $dat0,q13 + aesd $dat1,q13 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + vld1.32 {q8},[$key_],#16 // re-pre-load rndkey[0] + aesd $dat0,q14 + aesd $dat1,q14 + aesimc $dat0,$dat0 + aesimc $dat1,$dat1 + vld1.32 {q9},[$key_],#16 // re-pre-load rndkey[1] + aesd $dat0,q15 + aesd $dat1,q15 + + mov $cnt,$rounds + veor $tmp0,$tmp0,$dat0 + veor $tmp1,$tmp1,$dat1 + vorr $dat0,$in0,$in0 + vst1.8 {$tmp0},[$out],#16 + vorr $dat1,$in1,$in1 + vst1.8 {$tmp1},[$out],#16 + b.hs .Loop2x_cbc_dec + + adds $len,$len,#32 + b.eq .Lcbc_done + +.Lcbc_dec_tail: + aesd $dat,q8 + vld1.32 {q8},[$key_],#16 + aesimc $dat,$dat + subs $cnt,$cnt,#2 + aesd $dat,q9 + vld1.32 {q9},[$key_],#16 + aesimc $dat,$dat + b.gt .Lcbc_dec_tail + + aesd $dat,q8 + aesimc $dat,$dat + aesd $dat,q9 + aesimc $dat,$dat + veor $tmp,$ivec,$rndlast + aesd $dat,q10 + aesimc $dat,$dat + vorr $ivec,$in0,$in0 + aesd $dat,q11 + aesimc $dat,$dat + aesd $dat,q12 + aesimc $dat,$dat + aesd $dat,q13 + aesimc $dat,$dat + aesd $dat,q14 + aesimc $dat,$dat + aesd $dat,q15 + + veor $tmp,$tmp,$dat + vst1.8 {$tmp},[$out],#16 + +.Lcbc_done: + vst1.8 {$ivec},[$ivp] +.Lcbc_abort: +___ +$code.=<<___ if ($flavour !~ /64/); + vldmia sp!,{d8-d15} + ldmia sp!,{r4-r8,pc} +___ +$code.=<<___ if ($flavour =~ /64/); + ldr x29,[sp],#16 + ret +___ +$code.=<<___; +.size ${prefix}_cbc_encrypt,.-${prefix}_cbc_encrypt +___ +}}} +{{{ +my ($inp,$out,$len,$key,$ivp)=map("x$_",(0..4)); +my ($rounds,$cnt,$key_,$ctr,$tctr,$tctr1)=("w5","w6","x7","w8","w9","w10"); +my ($dat0,$dat1,$in0,$in1,$tmp0,$tmp1,$ivec,$rndlast)=map("q$_",(0..7)); + +my ($dat,$tmp)=($dat0,$tmp0); + +### q8-q15 preloaded key schedule + +$code.=<<___; +.globl ${prefix}_ctr32_encrypt_blocks +.type ${prefix}_ctr32_encrypt_blocks,%function +.align 5 +${prefix}_ctr32_encrypt_blocks: +___ +$code.=<<___ if ($flavour =~ /64/); + stp x29,x30,[sp,#-16]! + add x29,sp,#0 +___ +$code.=<<___ if ($flavour !~ /64/); + mov ip,sp + stmdb sp!,{r4-r10,lr} + vstmdb sp!,{d8-d15} @ ABI specification says so + ldr r4, [ip] @ load remaining arg +___ +$code.=<<___; + ldr $rounds,[$key,#240] + + ldr $ctr, [$ivp, #12] + vld1.32 {$dat0},[$ivp] + + vld1.32 {q8-q9},[$key] // load key schedule... + sub $rounds,$rounds,#6 + add $key_,$key,x5,lsl#4 // pointer to last 7 round keys + sub $rounds,$rounds,#2 + vld1.32 {q10-q11},[$key_],#32 + vld1.32 {q12-q13},[$key_],#32 + vld1.32 {q14-q15},[$key_],#32 + vld1.32 {$rndlast},[$key_] + + add $key_,$key,#32 + mov $cnt,$rounds + + subs $len,$len,#2 + b.lo .Lctr32_tail + +#ifndef __ARMEB__ + rev $ctr, $ctr +#endif + vorr $dat1,$dat0,$dat0 + add $ctr, $ctr, #1 + vorr $ivec,$dat0,$dat0 + rev $tctr1, $ctr + cmp $rounds,#2 + vmov.32 ${dat1}[3],$tctr1 + b.eq .Lctr32_128 + +.Loop2x_ctr32: + aese $dat0,q8 + aese $dat1,q8 + vld1.32 {q8},[$key_],#16 + aesmc $dat0,$dat0 + aesmc $dat1,$dat1 + subs $cnt,$cnt,#2 + aese $dat0,q9 + aese $dat1,q9 + vld1.32 {q9},[$key_],#16 + aesmc $dat0,$dat0 + aesmc $dat1,$dat1 + b.gt .Loop2x_ctr32 + + aese $dat0,q8 + aese $dat1,q8 + aesmc $tmp0,$dat0 + vorr $dat0,$ivec,$ivec + aesmc $tmp1,$dat1 + vorr $dat1,$ivec,$ivec + aese $tmp0,q9 + aese $tmp1,q9 + vld1.8 {$in0},[$inp],#16 + aesmc $tmp0,$tmp0 + vld1.8 {$in1},[$inp],#16 + aesmc $tmp1,$tmp1 + add $ctr,$ctr,#1 + aese $tmp0,q10 + aese $tmp1,q10 + rev $tctr,$ctr + aesmc $tmp0,$tmp0 + aesmc $tmp1,$tmp1 + add $ctr,$ctr,#1 + aese $tmp0,q11 + aese $tmp1,q11 + veor $in0,$in0,$rndlast + rev $tctr1,$ctr + aesmc $tmp0,$tmp0 + aesmc $tmp1,$tmp1 + veor $in1,$in1,$rndlast + mov $key_,$key + aese $tmp0,q12 + aese $tmp1,q12 + subs $len,$len,#2 + aesmc $tmp0,$tmp0 + aesmc $tmp1,$tmp1 + vld1.32 {q8-q9},[$key_],#32 // re-pre-load rndkey[0-1] + aese $tmp0,q13 + aese $tmp1,q13 + aesmc $tmp0,$tmp0 + aesmc $tmp1,$tmp1 + aese $tmp0,q14 + aese $tmp1,q14 + vmov.32 ${dat0}[3], $tctr + aesmc $tmp0,$tmp0 + vmov.32 ${dat1}[3], $tctr1 + aesmc $tmp1,$tmp1 + aese $tmp0,q15 + aese $tmp1,q15 + + mov $cnt,$rounds + veor $in0,$in0,$tmp0 + veor $in1,$in1,$tmp1 + vst1.8 {$in0},[$out],#16 + vst1.8 {$in1},[$out],#16 + b.hs .Loop2x_ctr32 + + adds $len,$len,#2 + b.eq .Lctr32_done + b .Lctr32_tail + +.Lctr32_128: + vld1.32 {$tmp0-$tmp1},[$key_] + +.Loop2x_ctr32_128: + aese $dat0,q8 + aese $dat1,q8 + aesmc $dat0,$dat0 + vld1.8 {$in0},[$inp],#16 + aesmc $dat1,$dat1 + vld1.8 {$in1},[$inp],#16 + aese $dat0,q9 + aese $dat1,q9 + add $ctr,$ctr,#1 + aesmc $dat0,$dat0 + aesmc $dat1,$dat1 + rev $tctr,$ctr + aese $dat0,$tmp0 + aese $dat1,$tmp0 + add $ctr,$ctr,#1 + aesmc $dat0,$dat0 + aesmc $dat1,$dat1 + rev $tctr1,$ctr + aese $dat0,$tmp1 + aese $dat1,$tmp1 + subs $len,$len,#2 + aesmc $dat0,$dat0 + aesmc $dat1,$dat1 + aese $dat0,q10 + aese $dat1,q10 + aesmc $dat0,$dat0 + aesmc $dat1,$dat1 + aese $dat0,q11 + aese $dat1,q11 + aesmc $dat0,$dat0 + aesmc $dat1,$dat1 + aese $dat0,q12 + aese $dat1,q12 + aesmc $dat0,$dat0 + aesmc $dat1,$dat1 + aese $dat0,q13 + aese $dat1,q13 + aesmc $dat0,$dat0 + aesmc $dat1,$dat1 + aese $dat0,q14 + aese $dat1,q14 + aesmc $dat0,$dat0 + aesmc $dat1,$dat1 + veor $in0,$in0,$rndlast + aese $dat0,q15 + veor $in1,$in1,$rndlast + aese $dat1,q15 + + veor $in0,$in0,$dat0 + vorr $dat0,$ivec,$ivec + veor $in1,$in1,$dat1 + vorr $dat1,$ivec,$ivec + vst1.8 {$in0},[$out],#16 + vmov.32 ${dat0}[3], $tctr + vst1.8 {$in1},[$out],#16 + vmov.32 ${dat1}[3], $tctr1 + b.hs .Loop2x_ctr32_128 + + adds $len,$len,#2 + b.eq .Lctr32_done + +.Lctr32_tail: + aese $dat,q8 + vld1.32 {q8},[$key_],#16 + aesmc $dat,$dat + subs $cnt,$cnt,#2 + aese $dat,q9 + vld1.32 {q9},[$key_],#16 + aesmc $dat,$dat + b.gt .Lctr32_tail + + aese $dat,q8 + aesmc $dat,$dat + aese $dat,q9 + aesmc $dat,$dat + vld1.8 {$in0},[$inp] + aese $dat,q10 + aesmc $dat,$dat + aese $dat,q11 + aesmc $dat,$dat + aese $dat,q12 + aesmc $dat,$dat + aese $dat,q13 + aesmc $dat,$dat + aese $dat,q14 + aesmc $dat,$dat + veor $in0,$in0,$rndlast + aese $dat,q15 + + veor $in0,$in0,$dat + vst1.8 {$in0},[$out] + +.Lctr32_done: +___ +$code.=<<___ if ($flavour !~ /64/); + vldmia sp!,{d8-d15} + ldmia sp!,{r4-r10,pc} +___ +$code.=<<___ if ($flavour =~ /64/); + ldr x29,[sp],#16 + ret +___ +$code.=<<___; +.size ${prefix}_ctr32_encrypt_blocks,.-${prefix}_ctr32_encrypt_blocks +___ +}}} +$code.=<<___; +#endif +___ +######################################## +if ($flavour =~ /64/) { ######## 64-bit code + my %opcode = ( + "aesd" => 0x4e285800, "aese" => 0x4e284800, + "aesimc"=> 0x4e287800, "aesmc" => 0x4e286800 ); + + local *unaes = sub { + my ($mnemonic,$arg)=@_; + + $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)/o && + sprintf ".inst\t0x%08x\t//%s %s", + $opcode{$mnemonic}|$1|($2<<5), + $mnemonic,$arg; + }; + + foreach(split("\n",$code)) { + s/\`([^\`]*)\`/eval($1)/geo; + + s/\bq([0-9]+)\b/"v".($1<8?$1:$1+8).".16b"/geo; # old->new registers + s/@\s/\/\//o; # old->new style commentary + + #s/[v]?(aes\w+)\s+([qv].*)/unaes($1,$2)/geo or + s/cclr\s+([wx])([^,]+),\s*([a-z]+)/csel $1$2,$1zr,$1$2,$3/o or + s/vmov\.i8/movi/o or # fix up legacy mnemonics + s/vext\.8/ext/o or + s/vrev32\.8/rev32/o or + s/vtst\.8/cmtst/o or + s/vshr/ushr/o or + s/^(\s+)v/$1/o or # strip off v prefix + s/\bbx\s+lr\b/ret/o; + + # fix up remainig legacy suffixes + s/\.[ui]?8//o; + m/\],#8/o and s/\.16b/\.8b/go; + s/\.[ui]?32//o and s/\.16b/\.4s/go; + s/\.[ui]?64//o and s/\.16b/\.2d/go; + s/\.[42]([sd])\[([0-3])\]/\.$1\[$2\]/o; + + print $_,"\n"; + } +} else { ######## 32-bit code + my %opcode = ( + "aesd" => 0xf3b00340, "aese" => 0xf3b00300, + "aesimc"=> 0xf3b003c0, "aesmc" => 0xf3b00380 ); + + local *unaes = sub { + my ($mnemonic,$arg)=@_; + + if ($arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)/o) { + my $word = $opcode{$mnemonic}|(($1&7)<<13)|(($1&8)<<19) + |(($2&7)<<1) |(($2&8)<<2); + # since ARMv7 instructions are always encoded little-endian. + # correct solution is to use .inst directive, but older + # assemblers don't implement it:-( + sprintf ".byte\t0x%02x,0x%02x,0x%02x,0x%02x\t@ %s %s", + $word&0xff,($word>>8)&0xff, + ($word>>16)&0xff,($word>>24)&0xff, + $mnemonic,$arg; + } + }; + + sub unvtbl { + my $arg=shift; + + $arg =~ m/q([0-9]+),\s*\{q([0-9]+)\},\s*q([0-9]+)/o && + sprintf "vtbl.8 d%d,{q%d},d%d\n\t". + "vtbl.8 d%d,{q%d},d%d", 2*$1,$2,2*$3, 2*$1+1,$2,2*$3+1; + } + + sub unvdup32 { + my $arg=shift; + + $arg =~ m/q([0-9]+),\s*q([0-9]+)\[([0-3])\]/o && + sprintf "vdup.32 q%d,d%d[%d]",$1,2*$2+($3>>1),$3&1; + } + + sub unvmov32 { + my $arg=shift; + + $arg =~ m/q([0-9]+)\[([0-3])\],(.*)/o && + sprintf "vmov.32 d%d[%d],%s",2*$1+($2>>1),$2&1,$3; + } + + foreach(split("\n",$code)) { + s/\`([^\`]*)\`/eval($1)/geo; + + s/\b[wx]([0-9]+)\b/r$1/go; # new->old registers + s/\bv([0-9])\.[12468]+[bsd]\b/q$1/go; # new->old registers + s/\/\/\s?/@ /o; # new->old style commentary + + # fix up remainig new-style suffixes + s/\{q([0-9]+)\},\s*\[(.+)\],#8/sprintf "{d%d},[$2]!",2*$1/eo or + s/\],#[0-9]+/]!/o; + + s/[v]?(aes\w+)\s+([qv].*)/unaes($1,$2)/geo or + s/cclr\s+([^,]+),\s*([a-z]+)/mov$2 $1,#0/o or + s/vtbl\.8\s+(.*)/unvtbl($1)/geo or + s/vdup\.32\s+(.*)/unvdup32($1)/geo or + s/vmov\.32\s+(.*)/unvmov32($1)/geo or + s/^(\s+)b\./$1b/o or + s/^(\s+)ret/$1bx\tlr/o; + + print $_,"\n"; + } +} + +close STDOUT; diff --git a/crypto/aes/asm/bsaes-armv7.pl b/crypto/aes/asm/bsaes-armv7.pl new file mode 100644 index 0000000..f3d96d9 --- /dev/null +++ b/crypto/aes/asm/bsaes-armv7.pl @@ -0,0 +1,2467 @@ +#!/usr/bin/env perl + +# ==================================================================== +# Written by Andy Polyakov for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# +# Specific modes and adaptation for Linux kernel by Ard Biesheuvel +# . Permission to use under GPL terms is +# granted. +# ==================================================================== + +# Bit-sliced AES for ARM NEON +# +# February 2012. +# +# This implementation is direct adaptation of bsaes-x86_64 module for +# ARM NEON. Except that this module is endian-neutral [in sense that +# it can be compiled for either endianness] by courtesy of vld1.8's +# neutrality. Initial version doesn't implement interface to OpenSSL, +# only low-level primitives and unsupported entry points, just enough +# to collect performance results, which for Cortex-A8 core are: +# +# encrypt 19.5 cycles per byte processed with 128-bit key +# decrypt 22.1 cycles per byte processed with 128-bit key +# key conv. 440 cycles per 128-bit key/0.18 of 8x block +# +# Snapdragon S4 encrypts byte in 17.6 cycles and decrypts in 19.7, +# which is [much] worse than anticipated (for further details see +# http://www.openssl.org/~appro/Snapdragon-S4.html). +# +# Cortex-A15 manages in 14.2/16.1 cycles [when integer-only code +# manages in 20.0 cycles]. +# +# When comparing to x86_64 results keep in mind that NEON unit is +# [mostly] single-issue and thus can't [fully] benefit from +# instruction-level parallelism. And when comparing to aes-armv4 +# results keep in mind key schedule conversion overhead (see +# bsaes-x86_64.pl for further details)... +# +# + +# April-August 2013 +# +# Add CBC, CTR and XTS subroutines, adapt for kernel use. +# +# + +while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} +open STDOUT,">$output"; + +my ($inp,$out,$len,$key)=("r0","r1","r2","r3"); +my @XMM=map("q$_",(0..15)); + +{ +my ($key,$rounds,$const)=("r4","r5","r6"); + +sub Dlo() { shift=~m|q([1]?[0-9])|?"d".($1*2):""; } +sub Dhi() { shift=~m|q([1]?[0-9])|?"d".($1*2+1):""; } + +sub Sbox { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b0, b1, b4, b6, b3, b7, b2, b5] < msb +my @b=@_[0..7]; +my @t=@_[8..11]; +my @s=@_[12..15]; + &InBasisChange (@b); + &Inv_GF256 (@b[6,5,0,3,7,1,4,2],@t,@s); + &OutBasisChange (@b[7,1,4,2,6,5,0,3]); +} + +sub InBasisChange { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b6, b5, b0, b3, b7, b1, b4, b2] < msb +my @b=@_[0..7]; +$code.=<<___; + veor @b[2], @b[2], @b[1] + veor @b[5], @b[5], @b[6] + veor @b[3], @b[3], @b[0] + veor @b[6], @b[6], @b[2] + veor @b[5], @b[5], @b[0] + + veor @b[6], @b[6], @b[3] + veor @b[3], @b[3], @b[7] + veor @b[7], @b[7], @b[5] + veor @b[3], @b[3], @b[4] + veor @b[4], @b[4], @b[5] + + veor @b[2], @b[2], @b[7] + veor @b[3], @b[3], @b[1] + veor @b[1], @b[1], @b[5] +___ +} + +sub OutBasisChange { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b6, b1, b2, b4, b7, b0, b3, b5] < msb +my @b=@_[0..7]; +$code.=<<___; + veor @b[0], @b[0], @b[6] + veor @b[1], @b[1], @b[4] + veor @b[4], @b[4], @b[6] + veor @b[2], @b[2], @b[0] + veor @b[6], @b[6], @b[1] + + veor @b[1], @b[1], @b[5] + veor @b[5], @b[5], @b[3] + veor @b[3], @b[3], @b[7] + veor @b[7], @b[7], @b[5] + veor @b[2], @b[2], @b[5] + + veor @b[4], @b[4], @b[7] +___ +} + +sub InvSbox { +# input in lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb +# output in lsb > [b0, b1, b6, b4, b2, b7, b3, b5] < msb +my @b=@_[0..7]; +my @t=@_[8..11]; +my @s=@_[12..15]; + &InvInBasisChange (@b); + &Inv_GF256 (@b[5,1,2,6,3,7,0,4],@t,@s); + &InvOutBasisChange (@b[3,7,0,4,5,1,2,6]); +} + +sub InvInBasisChange { # OutBasisChange in reverse (with twist) +my @b=@_[5,1,2,6,3,7,0,4]; +$code.=<<___ + veor @b[1], @b[1], @b[7] + veor @b[4], @b[4], @b[7] + + veor @b[7], @b[7], @b[5] + veor @b[1], @b[1], @b[3] + veor @b[2], @b[2], @b[5] + veor @b[3], @b[3], @b[7] + + veor @b[6], @b[6], @b[1] + veor @b[2], @b[2], @b[0] + veor @b[5], @b[5], @b[3] + veor @b[4], @b[4], @b[6] + veor @b[0], @b[0], @b[6] + veor @b[1], @b[1], @b[4] +___ +} + +sub InvOutBasisChange { # InBasisChange in reverse +my @b=@_[2,5,7,3,6,1,0,4]; +$code.=<<___; + veor @b[1], @b[1], @b[5] + veor @b[2], @b[2], @b[7] + + veor @b[3], @b[3], @b[1] + veor @b[4], @b[4], @b[5] + veor @b[7], @b[7], @b[5] + veor @b[3], @b[3], @b[4] + veor @b[5], @b[5], @b[0] + veor @b[3], @b[3], @b[7] + veor @b[6], @b[6], @b[2] + veor @b[2], @b[2], @b[1] + veor @b[6], @b[6], @b[3] + + veor @b[3], @b[3], @b[0] + veor @b[5], @b[5], @b[6] +___ +} + +sub Mul_GF4 { +#;************************************************************* +#;* Mul_GF4: Input x0-x1,y0-y1 Output x0-x1 Temp t0 (8) * +#;************************************************************* +my ($x0,$x1,$y0,$y1,$t0,$t1)=@_; +$code.=<<___; + veor $t0, $y0, $y1 + vand $t0, $t0, $x0 + veor $x0, $x0, $x1 + vand $t1, $x1, $y0 + vand $x0, $x0, $y1 + veor $x1, $t1, $t0 + veor $x0, $x0, $t1 +___ +} + +sub Mul_GF4_N { # not used, see next subroutine +# multiply and scale by N +my ($x0,$x1,$y0,$y1,$t0)=@_; +$code.=<<___; + veor $t0, $y0, $y1 + vand $t0, $t0, $x0 + veor $x0, $x0, $x1 + vand $x1, $x1, $y0 + vand $x0, $x0, $y1 + veor $x1, $x1, $x0 + veor $x0, $x0, $t0 +___ +} + +sub Mul_GF4_N_GF4 { +# interleaved Mul_GF4_N and Mul_GF4 +my ($x0,$x1,$y0,$y1,$t0, + $x2,$x3,$y2,$y3,$t1)=@_; +$code.=<<___; + veor $t0, $y0, $y1 + veor $t1, $y2, $y3 + vand $t0, $t0, $x0 + vand $t1, $t1, $x2 + veor $x0, $x0, $x1 + veor $x2, $x2, $x3 + vand $x1, $x1, $y0 + vand $x3, $x3, $y2 + vand $x0, $x0, $y1 + vand $x2, $x2, $y3 + veor $x1, $x1, $x0 + veor $x2, $x2, $x3 + veor $x0, $x0, $t0 + veor $x3, $x3, $t1 +___ +} +sub Mul_GF16_2 { +my @x=@_[0..7]; +my @y=@_[8..11]; +my @t=@_[12..15]; +$code.=<<___; + veor @t[0], @x[0], @x[2] + veor @t[1], @x[1], @x[3] +___ + &Mul_GF4 (@x[0], @x[1], @y[0], @y[1], @t[2..3]); +$code.=<<___; + veor @y[0], @y[0], @y[2] + veor @y[1], @y[1], @y[3] +___ + Mul_GF4_N_GF4 (@t[0], @t[1], @y[0], @y[1], @t[3], + @x[2], @x[3], @y[2], @y[3], @t[2]); +$code.=<<___; + veor @x[0], @x[0], @t[0] + veor @x[2], @x[2], @t[0] + veor @x[1], @x[1], @t[1] + veor @x[3], @x[3], @t[1] + + veor @t[0], @x[4], @x[6] + veor @t[1], @x[5], @x[7] +___ + &Mul_GF4_N_GF4 (@t[0], @t[1], @y[0], @y[1], @t[3], + @x[6], @x[7], @y[2], @y[3], @t[2]); +$code.=<<___; + veor @y[0], @y[0], @y[2] + veor @y[1], @y[1], @y[3] +___ + &Mul_GF4 (@x[4], @x[5], @y[0], @y[1], @t[2..3]); +$code.=<<___; + veor @x[4], @x[4], @t[0] + veor @x[6], @x[6], @t[0] + veor @x[5], @x[5], @t[1] + veor @x[7], @x[7], @t[1] +___ +} +sub Inv_GF256 { +#;******************************************************************** +#;* Inv_GF256: Input x0-x7 Output x0-x7 Temp t0-t3,s0-s3 (144) * +#;******************************************************************** +my @x=@_[0..7]; +my @t=@_[8..11]; +my @s=@_[12..15]; +# direct optimizations from hardware +$code.=<<___; + veor @t[3], @x[4], @x[6] + veor @t[2], @x[5], @x[7] + veor @t[1], @x[1], @x[3] + veor @s[1], @x[7], @x[6] + vmov @t[0], @t[2] + veor @s[0], @x[0], @x[2] + + vorr @t[2], @t[2], @t[1] + veor @s[3], @t[3], @t[0] + vand @s[2], @t[3], @s[0] + vorr @t[3], @t[3], @s[0] + veor @s[0], @s[0], @t[1] + vand @t[0], @t[0], @t[1] + veor @t[1], @x[3], @x[2] + vand @s[3], @s[3], @s[0] + vand @s[1], @s[1], @t[1] + veor @t[1], @x[4], @x[5] + veor @s[0], @x[1], @x[0] + veor @t[3], @t[3], @s[1] + veor @t[2], @t[2], @s[1] + vand @s[1], @t[1], @s[0] + vorr @t[1], @t[1], @s[0] + veor @t[3], @t[3], @s[3] + veor @t[0], @t[0], @s[1] + veor @t[2], @t[2], @s[2] + veor @t[1], @t[1], @s[3] + veor @t[0], @t[0], @s[2] + vand @s[0], @x[7], @x[3] + veor @t[1], @t[1], @s[2] + vand @s[1], @x[6], @x[2] + vand @s[2], @x[5], @x[1] + vorr @s[3], @x[4], @x[0] + veor @t[3], @t[3], @s[0] + veor @t[1], @t[1], @s[2] + veor @t[0], @t[0], @s[3] + veor @t[2], @t[2], @s[1] + + @ Inv_GF16 \t0, \t1, \t2, \t3, \s0, \s1, \s2, \s3 + + @ new smaller inversion + + vand @s[2], @t[3], @t[1] + vmov @s[0], @t[0] + + veor @s[1], @t[2], @s[2] + veor @s[3], @t[0], @s[2] + veor @s[2], @t[0], @s[2] @ @s[2]=@s[3] + + vbsl @s[1], @t[1], @t[0] + vbsl @s[3], @t[3], @t[2] + veor @t[3], @t[3], @t[2] + + vbsl @s[0], @s[1], @s[2] + vbsl @t[0], @s[2], @s[1] + + vand @s[2], @s[0], @s[3] + veor @t[1], @t[1], @t[0] + + veor @s[2], @s[2], @t[3] +___ +# output in s3, s2, s1, t1 + +# Mul_GF16_2 \x0, \x1, \x2, \x3, \x4, \x5, \x6, \x7, \t2, \t3, \t0, \t1, \s0, \s1, \s2, \s3 + +# Mul_GF16_2 \x0, \x1, \x2, \x3, \x4, \x5, \x6, \x7, \s3, \s2, \s1, \t1, \s0, \t0, \t2, \t3 + &Mul_GF16_2(@x,@s[3,2,1],@t[1],@s[0],@t[0,2,3]); + +### output msb > [x3,x2,x1,x0,x7,x6,x5,x4] < lsb +} + +# AES linear components + +sub ShiftRows { +my @x=@_[0..7]; +my @t=@_[8..11]; +my $mask=pop; +$code.=<<___; + vldmia $key!, {@t[0]-@t[3]} + veor @t[0], @t[0], @x[0] + veor @t[1], @t[1], @x[1] + vtbl.8 `&Dlo(@x[0])`, {@t[0]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[0])`, {@t[0]}, `&Dhi($mask)` + vldmia $key!, {@t[0]} + veor @t[2], @t[2], @x[2] + vtbl.8 `&Dlo(@x[1])`, {@t[1]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[1])`, {@t[1]}, `&Dhi($mask)` + vldmia $key!, {@t[1]} + veor @t[3], @t[3], @x[3] + vtbl.8 `&Dlo(@x[2])`, {@t[2]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[2])`, {@t[2]}, `&Dhi($mask)` + vldmia $key!, {@t[2]} + vtbl.8 `&Dlo(@x[3])`, {@t[3]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[3])`, {@t[3]}, `&Dhi($mask)` + vldmia $key!, {@t[3]} + veor @t[0], @t[0], @x[4] + veor @t[1], @t[1], @x[5] + vtbl.8 `&Dlo(@x[4])`, {@t[0]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[4])`, {@t[0]}, `&Dhi($mask)` + veor @t[2], @t[2], @x[6] + vtbl.8 `&Dlo(@x[5])`, {@t[1]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[5])`, {@t[1]}, `&Dhi($mask)` + veor @t[3], @t[3], @x[7] + vtbl.8 `&Dlo(@x[6])`, {@t[2]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[6])`, {@t[2]}, `&Dhi($mask)` + vtbl.8 `&Dlo(@x[7])`, {@t[3]}, `&Dlo($mask)` + vtbl.8 `&Dhi(@x[7])`, {@t[3]}, `&Dhi($mask)` +___ +} + +sub MixColumns { +# modified to emit output in order suitable for feeding back to aesenc[last] +my @x=@_[0..7]; +my @t=@_[8..15]; +my $inv=@_[16]; # optional +$code.=<<___; + vext.8 @t[0], @x[0], @x[0], #12 @ x0 <<< 32 + vext.8 @t[1], @x[1], @x[1], #12 + veor @x[0], @x[0], @t[0] @ x0 ^ (x0 <<< 32) + vext.8 @t[2], @x[2], @x[2], #12 + veor @x[1], @x[1], @t[1] + vext.8 @t[3], @x[3], @x[3], #12 + veor @x[2], @x[2], @t[2] + vext.8 @t[4], @x[4], @x[4], #12 + veor @x[3], @x[3], @t[3] + vext.8 @t[5], @x[5], @x[5], #12 + veor @x[4], @x[4], @t[4] + vext.8 @t[6], @x[6], @x[6], #12 + veor @x[5], @x[5], @t[5] + vext.8 @t[7], @x[7], @x[7], #12 + veor @x[6], @x[6], @t[6] + + veor @t[1], @t[1], @x[0] + veor @x[7], @x[7], @t[7] + vext.8 @x[0], @x[0], @x[0], #8 @ (x0 ^ (x0 <<< 32)) <<< 64) + veor @t[2], @t[2], @x[1] + veor @t[0], @t[0], @x[7] + veor @t[1], @t[1], @x[7] + vext.8 @x[1], @x[1], @x[1], #8 + veor @t[5], @t[5], @x[4] + veor @x[0], @x[0], @t[0] + veor @t[6], @t[6], @x[5] + veor @x[1], @x[1], @t[1] + vext.8 @t[0], @x[4], @x[4], #8 + veor @t[4], @t[4], @x[3] + vext.8 @t[1], @x[5], @x[5], #8 + veor @t[7], @t[7], @x[6] + vext.8 @x[4], @x[3], @x[3], #8 + veor @t[3], @t[3], @x[2] + vext.8 @x[5], @x[7], @x[7], #8 + veor @t[4], @t[4], @x[7] + vext.8 @x[3], @x[6], @x[6], #8 + veor @t[3], @t[3], @x[7] + vext.8 @x[6], @x[2], @x[2], #8 + veor @x[7], @t[1], @t[5] +___ +$code.=<<___ if (!$inv); + veor @x[2], @t[0], @t[4] + veor @x[4], @x[4], @t[3] + veor @x[5], @x[5], @t[7] + veor @x[3], @x[3], @t[6] + @ vmov @x[2], @t[0] + veor @x[6], @x[6], @t[2] + @ vmov @x[7], @t[1] +___ +$code.=<<___ if ($inv); + veor @t[3], @t[3], @x[4] + veor @x[5], @x[5], @t[7] + veor @x[2], @x[3], @t[6] + veor @x[3], @t[0], @t[4] + veor @x[4], @x[6], @t[2] + vmov @x[6], @t[3] + @ vmov @x[7], @t[1] +___ +} + +sub InvMixColumns_orig { +my @x=@_[0..7]; +my @t=@_[8..15]; + +$code.=<<___; + @ multiplication by 0x0e + vext.8 @t[7], @x[7], @x[7], #12 + vmov @t[2], @x[2] + veor @x[2], @x[2], @x[5] @ 2 5 + veor @x[7], @x[7], @x[5] @ 7 5 + vext.8 @t[0], @x[0], @x[0], #12 + vmov @t[5], @x[5] + veor @x[5], @x[5], @x[0] @ 5 0 [1] + veor @x[0], @x[0], @x[1] @ 0 1 + vext.8 @t[1], @x[1], @x[1], #12 + veor @x[1], @x[1], @x[2] @ 1 25 + veor @x[0], @x[0], @x[6] @ 01 6 [2] + vext.8 @t[3], @x[3], @x[3], #12 + veor @x[1], @x[1], @x[3] @ 125 3 [4] + veor @x[2], @x[2], @x[0] @ 25 016 [3] + veor @x[3], @x[3], @x[7] @ 3 75 + veor @x[7], @x[7], @x[6] @ 75 6 [0] + vext.8 @t[6], @x[6], @x[6], #12 + vmov @t[4], @x[4] + veor @x[6], @x[6], @x[4] @ 6 4 + veor @x[4], @x[4], @x[3] @ 4 375 [6] + veor @x[3], @x[3], @x[7] @ 375 756=36 + veor @x[6], @x[6], @t[5] @ 64 5 [7] + veor @x[3], @x[3], @t[2] @ 36 2 + vext.8 @t[5], @t[5], @t[5], #12 + veor @x[3], @x[3], @t[4] @ 362 4 [5] +___ + my @y = @x[7,5,0,2,1,3,4,6]; +$code.=<<___; + @ multiplication by 0x0b + veor @y[1], @y[1], @y[0] + veor @y[0], @y[0], @t[0] + vext.8 @t[2], @t[2], @t[2], #12 + veor @y[1], @y[1], @t[1] + veor @y[0], @y[0], @t[5] + vext.8 @t[4], @t[4], @t[4], #12 + veor @y[1], @y[1], @t[6] + veor @y[0], @y[0], @t[7] + veor @t[7], @t[7], @t[6] @ clobber t[7] + + veor @y[3], @y[3], @t[0] + veor @y[1], @y[1], @y[0] + vext.8 @t[0], @t[0], @t[0], #12 + veor @y[2], @y[2], @t[1] + veor @y[4], @y[4], @t[1] + vext.8 @t[1], @t[1], @t[1], #12 + veor @y[2], @y[2], @t[2] + veor @y[3], @y[3], @t[2] + veor @y[5], @y[5], @t[2] + veor @y[2], @y[2], @t[7] + vext.8 @t[2], @t[2], @t[2], #12 + veor @y[3], @y[3], @t[3] + veor @y[6], @y[6], @t[3] + veor @y[4], @y[4], @t[3] + veor @y[7], @y[7], @t[4] + vext.8 @t[3], @t[3], @t[3], #12 + veor @y[5], @y[5], @t[4] + veor @y[7], @y[7], @t[7] + veor @t[7], @t[7], @t[5] @ clobber t[7] even more + veor @y[3], @y[3], @t[5] + veor @y[4], @y[4], @t[4] + + veor @y[5], @y[5], @t[7] + vext.8 @t[4], @t[4], @t[4], #12 + veor @y[6], @y[6], @t[7] + veor @y[4], @y[4], @t[7] + + veor @t[7], @t[7], @t[5] + vext.8 @t[5], @t[5], @t[5], #12 + + @ multiplication by 0x0d + veor @y[4], @y[4], @y[7] + veor @t[7], @t[7], @t[6] @ restore t[7] + veor @y[7], @y[7], @t[4] + vext.8 @t[6], @t[6], @t[6], #12 + veor @y[2], @y[2], @t[0] + veor @y[7], @y[7], @t[5] + vext.8 @t[7], @t[7], @t[7], #12 + veor @y[2], @y[2], @t[2] + + veor @y[3], @y[3], @y[1] + veor @y[1], @y[1], @t[1] + veor @y[0], @y[0], @t[0] + veor @y[3], @y[3], @t[0] + veor @y[1], @y[1], @t[5] + veor @y[0], @y[0], @t[5] + vext.8 @t[0], @t[0], @t[0], #12 + veor @y[1], @y[1], @t[7] + veor @y[0], @y[0], @t[6] + veor @y[3], @y[3], @y[1] + veor @y[4], @y[4], @t[1] + vext.8 @t[1], @t[1], @t[1], #12 + + veor @y[7], @y[7], @t[7] + veor @y[4], @y[4], @t[2] + veor @y[5], @y[5], @t[2] + veor @y[2], @y[2], @t[6] + veor @t[6], @t[6], @t[3] @ clobber t[6] + vext.8 @t[2], @t[2], @t[2], #12 + veor @y[4], @y[4], @y[7] + veor @y[3], @y[3], @t[6] + + veor @y[6], @y[6], @t[6] + veor @y[5], @y[5], @t[5] + vext.8 @t[5], @t[5], @t[5], #12 + veor @y[6], @y[6], @t[4] + vext.8 @t[4], @t[4], @t[4], #12 + veor @y[5], @y[5], @t[6] + veor @y[6], @y[6], @t[7] + vext.8 @t[7], @t[7], @t[7], #12 + veor @t[6], @t[6], @t[3] @ restore t[6] + vext.8 @t[3], @t[3], @t[3], #12 + + @ multiplication by 0x09 + veor @y[4], @y[4], @y[1] + veor @t[1], @t[1], @y[1] @ t[1]=y[1] + veor @t[0], @t[0], @t[5] @ clobber t[0] + vext.8 @t[6], @t[6], @t[6], #12 + veor @t[1], @t[1], @t[5] + veor @y[3], @y[3], @t[0] + veor @t[0], @t[0], @y[0] @ t[0]=y[0] + veor @t[1], @t[1], @t[6] + veor @t[6], @t[6], @t[7] @ clobber t[6] + veor @y[4], @y[4], @t[1] + veor @y[7], @y[7], @t[4] + veor @y[6], @y[6], @t[3] + veor @y[5], @y[5], @t[2] + veor @t[4], @t[4], @y[4] @ t[4]=y[4] + veor @t[3], @t[3], @y[3] @ t[3]=y[3] + veor @t[5], @t[5], @y[5] @ t[5]=y[5] + veor @t[2], @t[2], @y[2] @ t[2]=y[2] + veor @t[3], @t[3], @t[7] + veor @XMM[5], @t[5], @t[6] + veor @XMM[6], @t[6], @y[6] @ t[6]=y[6] + veor @XMM[2], @t[2], @t[6] + veor @XMM[7], @t[7], @y[7] @ t[7]=y[7] + + vmov @XMM[0], @t[0] + vmov @XMM[1], @t[1] + @ vmov @XMM[2], @t[2] + vmov @XMM[3], @t[3] + vmov @XMM[4], @t[4] + @ vmov @XMM[5], @t[5] + @ vmov @XMM[6], @t[6] + @ vmov @XMM[7], @t[7] +___ +} + +sub InvMixColumns { +my @x=@_[0..7]; +my @t=@_[8..15]; + +# Thanks to Jussi Kivilinna for providing pointer to +# +# | 0e 0b 0d 09 | | 02 03 01 01 | | 05 00 04 00 | +# | 09 0e 0b 0d | = | 01 02 03 01 | x | 00 05 00 04 | +# | 0d 09 0e 0b | | 01 01 02 03 | | 04 00 05 00 | +# | 0b 0d 09 0e | | 03 01 01 02 | | 00 04 00 05 | + +$code.=<<___; + @ multiplication by 0x05-0x00-0x04-0x00 + vext.8 @t[0], @x[0], @x[0], #8 + vext.8 @t[6], @x[6], @x[6], #8 + vext.8 @t[7], @x[7], @x[7], #8 + veor @t[0], @t[0], @x[0] + vext.8 @t[1], @x[1], @x[1], #8 + veor @t[6], @t[6], @x[6] + vext.8 @t[2], @x[2], @x[2], #8 + veor @t[7], @t[7], @x[7] + vext.8 @t[3], @x[3], @x[3], #8 + veor @t[1], @t[1], @x[1] + vext.8 @t[4], @x[4], @x[4], #8 + veor @t[2], @t[2], @x[2] + vext.8 @t[5], @x[5], @x[5], #8 + veor @t[3], @t[3], @x[3] + veor @t[4], @t[4], @x[4] + veor @t[5], @t[5], @x[5] + + veor @x[0], @x[0], @t[6] + veor @x[1], @x[1], @t[6] + veor @x[2], @x[2], @t[0] + veor @x[4], @x[4], @t[2] + veor @x[3], @x[3], @t[1] + veor @x[1], @x[1], @t[7] + veor @x[2], @x[2], @t[7] + veor @x[4], @x[4], @t[6] + veor @x[5], @x[5], @t[3] + veor @x[3], @x[3], @t[6] + veor @x[6], @x[6], @t[4] + veor @x[4], @x[4], @t[7] + veor @x[5], @x[5], @t[7] + veor @x[7], @x[7], @t[5] +___ + &MixColumns (@x,@t,1); # flipped 2<->3 and 4<->6 +} + +sub swapmove { +my ($a,$b,$n,$mask,$t)=@_; +$code.=<<___; + vshr.u64 $t, $b, #$n + veor $t, $t, $a + vand $t, $t, $mask + veor $a, $a, $t + vshl.u64 $t, $t, #$n + veor $b, $b, $t +___ +} +sub swapmove2x { +my ($a0,$b0,$a1,$b1,$n,$mask,$t0,$t1)=@_; +$code.=<<___; + vshr.u64 $t0, $b0, #$n + vshr.u64 $t1, $b1, #$n + veor $t0, $t0, $a0 + veor $t1, $t1, $a1 + vand $t0, $t0, $mask + vand $t1, $t1, $mask + veor $a0, $a0, $t0 + vshl.u64 $t0, $t0, #$n + veor $a1, $a1, $t1 + vshl.u64 $t1, $t1, #$n + veor $b0, $b0, $t0 + veor $b1, $b1, $t1 +___ +} + +sub bitslice { +my @x=reverse(@_[0..7]); +my ($t0,$t1,$t2,$t3)=@_[8..11]; +$code.=<<___; + vmov.i8 $t0,#0x55 @ compose .LBS0 + vmov.i8 $t1,#0x33 @ compose .LBS1 +___ + &swapmove2x(@x[0,1,2,3],1,$t0,$t2,$t3); + &swapmove2x(@x[4,5,6,7],1,$t0,$t2,$t3); +$code.=<<___; + vmov.i8 $t0,#0x0f @ compose .LBS2 +___ + &swapmove2x(@x[0,2,1,3],2,$t1,$t2,$t3); + &swapmove2x(@x[4,6,5,7],2,$t1,$t2,$t3); + + &swapmove2x(@x[0,4,1,5],4,$t0,$t2,$t3); + &swapmove2x(@x[2,6,3,7],4,$t0,$t2,$t3); +} + +$code.=<<___; +#ifndef __KERNEL__ +# include "arm_arch.h" + +# define VFP_ABI_PUSH vstmdb sp!,{d8-d15} +# define VFP_ABI_POP vldmia sp!,{d8-d15} +# define VFP_ABI_FRAME 0x40 +#else +# define VFP_ABI_PUSH +# define VFP_ABI_POP +# define VFP_ABI_FRAME 0 +# define BSAES_ASM_EXTENDED_KEY +# define XTS_CHAIN_TWEAK +# define __ARM_ARCH__ __LINUX_ARM_ARCH__ +#endif + +#ifdef __thumb__ +# define adrl adr +#endif + +#if __ARM_ARCH__>=7 +.text +.syntax unified @ ARMv7-capable assembler is expected to handle this +#ifdef __thumb2__ +.thumb +#else +.code 32 +#endif + +.fpu neon + +.type _bsaes_decrypt8,%function +.align 4 +_bsaes_decrypt8: + adr $const,_bsaes_decrypt8 + vldmia $key!, {@XMM[9]} @ round 0 key + add $const,$const,#.LM0ISR-_bsaes_decrypt8 + + vldmia $const!, {@XMM[8]} @ .LM0ISR + veor @XMM[10], @XMM[0], @XMM[9] @ xor with round0 key + veor @XMM[11], @XMM[1], @XMM[9] + vtbl.8 `&Dlo(@XMM[0])`, {@XMM[10]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[0])`, {@XMM[10]}, `&Dhi(@XMM[8])` + veor @XMM[12], @XMM[2], @XMM[9] + vtbl.8 `&Dlo(@XMM[1])`, {@XMM[11]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[1])`, {@XMM[11]}, `&Dhi(@XMM[8])` + veor @XMM[13], @XMM[3], @XMM[9] + vtbl.8 `&Dlo(@XMM[2])`, {@XMM[12]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[2])`, {@XMM[12]}, `&Dhi(@XMM[8])` + veor @XMM[14], @XMM[4], @XMM[9] + vtbl.8 `&Dlo(@XMM[3])`, {@XMM[13]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[3])`, {@XMM[13]}, `&Dhi(@XMM[8])` + veor @XMM[15], @XMM[5], @XMM[9] + vtbl.8 `&Dlo(@XMM[4])`, {@XMM[14]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[4])`, {@XMM[14]}, `&Dhi(@XMM[8])` + veor @XMM[10], @XMM[6], @XMM[9] + vtbl.8 `&Dlo(@XMM[5])`, {@XMM[15]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[5])`, {@XMM[15]}, `&Dhi(@XMM[8])` + veor @XMM[11], @XMM[7], @XMM[9] + vtbl.8 `&Dlo(@XMM[6])`, {@XMM[10]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[6])`, {@XMM[10]}, `&Dhi(@XMM[8])` + vtbl.8 `&Dlo(@XMM[7])`, {@XMM[11]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[7])`, {@XMM[11]}, `&Dhi(@XMM[8])` +___ + &bitslice (@XMM[0..7, 8..11]); +$code.=<<___; + sub $rounds,$rounds,#1 + b .Ldec_sbox +.align 4 +.Ldec_loop: +___ + &ShiftRows (@XMM[0..7, 8..12]); +$code.=".Ldec_sbox:\n"; + &InvSbox (@XMM[0..7, 8..15]); +$code.=<<___; + subs $rounds,$rounds,#1 + bcc .Ldec_done +___ + &InvMixColumns (@XMM[0,1,6,4,2,7,3,5, 8..15]); +$code.=<<___; + vldmia $const, {@XMM[12]} @ .LISR + ite eq @ Thumb2 thing, sanity check in ARM + addeq $const,$const,#0x10 + bne .Ldec_loop + vldmia $const, {@XMM[12]} @ .LISRM0 + b .Ldec_loop +.align 4 +.Ldec_done: +___ + &bitslice (@XMM[0,1,6,4,2,7,3,5, 8..11]); +$code.=<<___; + vldmia $key, {@XMM[8]} @ last round key + veor @XMM[6], @XMM[6], @XMM[8] + veor @XMM[4], @XMM[4], @XMM[8] + veor @XMM[2], @XMM[2], @XMM[8] + veor @XMM[7], @XMM[7], @XMM[8] + veor @XMM[3], @XMM[3], @XMM[8] + veor @XMM[5], @XMM[5], @XMM[8] + veor @XMM[0], @XMM[0], @XMM[8] + veor @XMM[1], @XMM[1], @XMM[8] + bx lr +.size _bsaes_decrypt8,.-_bsaes_decrypt8 + +.type _bsaes_const,%object +.align 6 +_bsaes_const: +.LM0ISR: @ InvShiftRows constants + .quad 0x0a0e0206070b0f03, 0x0004080c0d010509 +.LISR: + .quad 0x0504070602010003, 0x0f0e0d0c080b0a09 +.LISRM0: + .quad 0x01040b0e0205080f, 0x0306090c00070a0d +.LM0SR: @ ShiftRows constants + .quad 0x0a0e02060f03070b, 0x0004080c05090d01 +.LSR: + .quad 0x0504070600030201, 0x0f0e0d0c0a09080b +.LSRM0: + .quad 0x0304090e00050a0f, 0x01060b0c0207080d +.LM0: + .quad 0x02060a0e03070b0f, 0x0004080c0105090d +.LREVM0SR: + .quad 0x090d01050c000408, 0x03070b0f060a0e02 +.asciz "Bit-sliced AES for NEON, CRYPTOGAMS by " +.align 6 +.size _bsaes_const,.-_bsaes_const + +.type _bsaes_encrypt8,%function +.align 4 +_bsaes_encrypt8: + adr $const,_bsaes_encrypt8 + vldmia $key!, {@XMM[9]} @ round 0 key + sub $const,$const,#_bsaes_encrypt8-.LM0SR + + vldmia $const!, {@XMM[8]} @ .LM0SR +_bsaes_encrypt8_alt: + veor @XMM[10], @XMM[0], @XMM[9] @ xor with round0 key + veor @XMM[11], @XMM[1], @XMM[9] + vtbl.8 `&Dlo(@XMM[0])`, {@XMM[10]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[0])`, {@XMM[10]}, `&Dhi(@XMM[8])` + veor @XMM[12], @XMM[2], @XMM[9] + vtbl.8 `&Dlo(@XMM[1])`, {@XMM[11]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[1])`, {@XMM[11]}, `&Dhi(@XMM[8])` + veor @XMM[13], @XMM[3], @XMM[9] + vtbl.8 `&Dlo(@XMM[2])`, {@XMM[12]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[2])`, {@XMM[12]}, `&Dhi(@XMM[8])` + veor @XMM[14], @XMM[4], @XMM[9] + vtbl.8 `&Dlo(@XMM[3])`, {@XMM[13]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[3])`, {@XMM[13]}, `&Dhi(@XMM[8])` + veor @XMM[15], @XMM[5], @XMM[9] + vtbl.8 `&Dlo(@XMM[4])`, {@XMM[14]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[4])`, {@XMM[14]}, `&Dhi(@XMM[8])` + veor @XMM[10], @XMM[6], @XMM[9] + vtbl.8 `&Dlo(@XMM[5])`, {@XMM[15]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[5])`, {@XMM[15]}, `&Dhi(@XMM[8])` + veor @XMM[11], @XMM[7], @XMM[9] + vtbl.8 `&Dlo(@XMM[6])`, {@XMM[10]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[6])`, {@XMM[10]}, `&Dhi(@XMM[8])` + vtbl.8 `&Dlo(@XMM[7])`, {@XMM[11]}, `&Dlo(@XMM[8])` + vtbl.8 `&Dhi(@XMM[7])`, {@XMM[11]}, `&Dhi(@XMM[8])` +_bsaes_encrypt8_bitslice: +___ + &bitslice (@XMM[0..7, 8..11]); +$code.=<<___; + sub $rounds,$rounds,#1 + b .Lenc_sbox +.align 4 +.Lenc_loop: +___ + &ShiftRows (@XMM[0..7, 8..12]); +$code.=".Lenc_sbox:\n"; + &Sbox (@XMM[0..7, 8..15]); +$code.=<<___; + subs $rounds,$rounds,#1 + bcc .Lenc_done +___ + &MixColumns (@XMM[0,1,4,6,3,7,2,5, 8..15]); +$code.=<<___; + vldmia $const, {@XMM[12]} @ .LSR + ite eq @ Thumb2 thing, samity check in ARM + addeq $const,$const,#0x10 + bne .Lenc_loop + vldmia $const, {@XMM[12]} @ .LSRM0 + b .Lenc_loop +.align 4 +.Lenc_done: +___ + # output in lsb > [t0, t1, t4, t6, t3, t7, t2, t5] < msb + &bitslice (@XMM[0,1,4,6,3,7,2,5, 8..11]); +$code.=<<___; + vldmia $key, {@XMM[8]} @ last round key + veor @XMM[4], @XMM[4], @XMM[8] + veor @XMM[6], @XMM[6], @XMM[8] + veor @XMM[3], @XMM[3], @XMM[8] + veor @XMM[7], @XMM[7], @XMM[8] + veor @XMM[2], @XMM[2], @XMM[8] + veor @XMM[5], @XMM[5], @XMM[8] + veor @XMM[0], @XMM[0], @XMM[8] + veor @XMM[1], @XMM[1], @XMM[8] + bx lr +.size _bsaes_encrypt8,.-_bsaes_encrypt8 +___ +} +{ +my ($out,$inp,$rounds,$const)=("r12","r4","r5","r6"); + +sub bitslice_key { +my @x=reverse(@_[0..7]); +my ($bs0,$bs1,$bs2,$t2,$t3)=@_[8..12]; + + &swapmove (@x[0,1],1,$bs0,$t2,$t3); +$code.=<<___; + @ &swapmove(@x[2,3],1,$t0,$t2,$t3); + vmov @x[2], @x[0] + vmov @x[3], @x[1] +___ + #&swapmove2x(@x[4,5,6,7],1,$t0,$t2,$t3); + + &swapmove2x (@x[0,2,1,3],2,$bs1,$t2,$t3); +$code.=<<___; + @ &swapmove2x(@x[4,6,5,7],2,$t1,$t2,$t3); + vmov @x[4], @x[0] + vmov @x[6], @x[2] + vmov @x[5], @x[1] + vmov @x[7], @x[3] +___ + &swapmove2x (@x[0,4,1,5],4,$bs2,$t2,$t3); + &swapmove2x (@x[2,6,3,7],4,$bs2,$t2,$t3); +} + +$code.=<<___; +.type _bsaes_key_convert,%function +.align 4 +_bsaes_key_convert: + adr $const,_bsaes_key_convert + vld1.8 {@XMM[7]}, [$inp]! @ load round 0 key + sub $const,$const,#_bsaes_key_convert-.LM0 + vld1.8 {@XMM[15]}, [$inp]! @ load round 1 key + + vmov.i8 @XMM[8], #0x01 @ bit masks + vmov.i8 @XMM[9], #0x02 + vmov.i8 @XMM[10], #0x04 + vmov.i8 @XMM[11], #0x08 + vmov.i8 @XMM[12], #0x10 + vmov.i8 @XMM[13], #0x20 + vldmia $const, {@XMM[14]} @ .LM0 + +#ifdef __ARMEL__ + vrev32.8 @XMM[7], @XMM[7] + vrev32.8 @XMM[15], @XMM[15] +#endif + sub $rounds,$rounds,#1 + vstmia $out!, {@XMM[7]} @ save round 0 key + b .Lkey_loop + +.align 4 +.Lkey_loop: + vtbl.8 `&Dlo(@XMM[7])`,{@XMM[15]},`&Dlo(@XMM[14])` + vtbl.8 `&Dhi(@XMM[7])`,{@XMM[15]},`&Dhi(@XMM[14])` + vmov.i8 @XMM[6], #0x40 + vmov.i8 @XMM[15], #0x80 + + vtst.8 @XMM[0], @XMM[7], @XMM[8] + vtst.8 @XMM[1], @XMM[7], @XMM[9] + vtst.8 @XMM[2], @XMM[7], @XMM[10] + vtst.8 @XMM[3], @XMM[7], @XMM[11] + vtst.8 @XMM[4], @XMM[7], @XMM[12] + vtst.8 @XMM[5], @XMM[7], @XMM[13] + vtst.8 @XMM[6], @XMM[7], @XMM[6] + vtst.8 @XMM[7], @XMM[7], @XMM[15] + vld1.8 {@XMM[15]}, [$inp]! @ load next round key + vmvn @XMM[0], @XMM[0] @ "pnot" + vmvn @XMM[1], @XMM[1] + vmvn @XMM[5], @XMM[5] + vmvn @XMM[6], @XMM[6] +#ifdef __ARMEL__ + vrev32.8 @XMM[15], @XMM[15] +#endif + subs $rounds,$rounds,#1 + vstmia $out!,{@XMM[0]-@XMM[7]} @ write bit-sliced round key + bne .Lkey_loop + + vmov.i8 @XMM[7],#0x63 @ compose .L63 + @ don't save last round key + bx lr +.size _bsaes_key_convert,.-_bsaes_key_convert +___ +} + +if (0) { # following four functions are unsupported interface + # used for benchmarking... +$code.=<<___; +.globl bsaes_enc_key_convert +.type bsaes_enc_key_convert,%function +.align 4 +bsaes_enc_key_convert: + stmdb sp!,{r4-r6,lr} + vstmdb sp!,{d8-d15} @ ABI specification says so + + ldr r5,[$inp,#240] @ pass rounds + mov r4,$inp @ pass key + mov r12,$out @ pass key schedule + bl _bsaes_key_convert + veor @XMM[7],@XMM[7],@XMM[15] @ fix up last round key + vstmia r12, {@XMM[7]} @ save last round key + + vldmia sp!,{d8-d15} + ldmia sp!,{r4-r6,pc} +.size bsaes_enc_key_convert,.-bsaes_enc_key_convert + +.globl bsaes_encrypt_128 +.type bsaes_encrypt_128,%function +.align 4 +bsaes_encrypt_128: + stmdb sp!,{r4-r6,lr} + vstmdb sp!,{d8-d15} @ ABI specification says so +.Lenc128_loop: + vld1.8 {@XMM[0]-@XMM[1]}, [$inp]! @ load input + vld1.8 {@XMM[2]-@XMM[3]}, [$inp]! + mov r4,$key @ pass the key + vld1.8 {@XMM[4]-@XMM[5]}, [$inp]! + mov r5,#10 @ pass rounds + vld1.8 {@XMM[6]-@XMM[7]}, [$inp]! + + bl _bsaes_encrypt8 + + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + vst1.8 {@XMM[4]}, [$out]! + vst1.8 {@XMM[6]}, [$out]! + vst1.8 {@XMM[3]}, [$out]! + vst1.8 {@XMM[7]}, [$out]! + vst1.8 {@XMM[2]}, [$out]! + subs $len,$len,#0x80 + vst1.8 {@XMM[5]}, [$out]! + bhi .Lenc128_loop + + vldmia sp!,{d8-d15} + ldmia sp!,{r4-r6,pc} +.size bsaes_encrypt_128,.-bsaes_encrypt_128 + +.globl bsaes_dec_key_convert +.type bsaes_dec_key_convert,%function +.align 4 +bsaes_dec_key_convert: + stmdb sp!,{r4-r6,lr} + vstmdb sp!,{d8-d15} @ ABI specification says so + + ldr r5,[$inp,#240] @ pass rounds + mov r4,$inp @ pass key + mov r12,$out @ pass key schedule + bl _bsaes_key_convert + vldmia $out, {@XMM[6]} + vstmia r12, {@XMM[15]} @ save last round key + veor @XMM[7], @XMM[7], @XMM[6] @ fix up round 0 key + vstmia $out, {@XMM[7]} + + vldmia sp!,{d8-d15} + ldmia sp!,{r4-r6,pc} +.size bsaes_dec_key_convert,.-bsaes_dec_key_convert + +.globl bsaes_decrypt_128 +.type bsaes_decrypt_128,%function +.align 4 +bsaes_decrypt_128: + stmdb sp!,{r4-r6,lr} + vstmdb sp!,{d8-d15} @ ABI specification says so +.Ldec128_loop: + vld1.8 {@XMM[0]-@XMM[1]}, [$inp]! @ load input + vld1.8 {@XMM[2]-@XMM[3]}, [$inp]! + mov r4,$key @ pass the key + vld1.8 {@XMM[4]-@XMM[5]}, [$inp]! + mov r5,#10 @ pass rounds + vld1.8 {@XMM[6]-@XMM[7]}, [$inp]! + + bl _bsaes_decrypt8 + + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + vst1.8 {@XMM[6]}, [$out]! + vst1.8 {@XMM[4]}, [$out]! + vst1.8 {@XMM[2]}, [$out]! + vst1.8 {@XMM[7]}, [$out]! + vst1.8 {@XMM[3]}, [$out]! + subs $len,$len,#0x80 + vst1.8 {@XMM[5]}, [$out]! + bhi .Ldec128_loop + + vldmia sp!,{d8-d15} + ldmia sp!,{r4-r6,pc} +.size bsaes_decrypt_128,.-bsaes_decrypt_128 +___ +} +{ +my ($inp,$out,$len,$key, $ivp,$fp,$rounds)=map("r$_",(0..3,8..10)); +my ($keysched)=("sp"); + +$code.=<<___; +.extern AES_cbc_encrypt +.extern AES_decrypt + +.global bsaes_cbc_encrypt +.type bsaes_cbc_encrypt,%function +.align 5 +bsaes_cbc_encrypt: +#ifndef __KERNEL__ + cmp $len, #128 +#ifndef __thumb__ + blo AES_cbc_encrypt +#else + bhs 1f + b AES_cbc_encrypt +1: +#endif +#endif + + @ it is up to the caller to make sure we are called with enc == 0 + + mov ip, sp + stmdb sp!, {r4-r10, lr} + VFP_ABI_PUSH + ldr $ivp, [ip] @ IV is 1st arg on the stack + mov $len, $len, lsr#4 @ len in 16 byte blocks + sub sp, #0x10 @ scratch space to carry over the IV + mov $fp, sp @ save sp + + ldr $rounds, [$key, #240] @ get # of rounds +#ifndef BSAES_ASM_EXTENDED_KEY + @ allocate the key schedule on the stack + sub r12, sp, $rounds, lsl#7 @ 128 bytes per inner round key + add r12, #`128-32` @ sifze of bit-slices key schedule + + @ populate the key schedule + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + mov sp, r12 @ sp is $keysched + bl _bsaes_key_convert + vldmia $keysched, {@XMM[6]} + vstmia r12, {@XMM[15]} @ save last round key + veor @XMM[7], @XMM[7], @XMM[6] @ fix up round 0 key + vstmia $keysched, {@XMM[7]} +#else + ldr r12, [$key, #244] + eors r12, #1 + beq 0f + + @ populate the key schedule + str r12, [$key, #244] + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + add r12, $key, #248 @ pass key schedule + bl _bsaes_key_convert + add r4, $key, #248 + vldmia r4, {@XMM[6]} + vstmia r12, {@XMM[15]} @ save last round key + veor @XMM[7], @XMM[7], @XMM[6] @ fix up round 0 key + vstmia r4, {@XMM[7]} + +.align 2 +0: +#endif + + vld1.8 {@XMM[15]}, [$ivp] @ load IV + b .Lcbc_dec_loop + +.align 4 +.Lcbc_dec_loop: + subs $len, $len, #0x8 + bmi .Lcbc_dec_loop_finish + + vld1.8 {@XMM[0]-@XMM[1]}, [$inp]! @ load input + vld1.8 {@XMM[2]-@XMM[3]}, [$inp]! +#ifndef BSAES_ASM_EXTENDED_KEY + mov r4, $keysched @ pass the key +#else + add r4, $key, #248 +#endif + vld1.8 {@XMM[4]-@XMM[5]}, [$inp]! + mov r5, $rounds + vld1.8 {@XMM[6]-@XMM[7]}, [$inp] + sub $inp, $inp, #0x60 + vstmia $fp, {@XMM[15]} @ put aside IV + + bl _bsaes_decrypt8 + + vldmia $fp, {@XMM[14]} @ reload IV + vld1.8 {@XMM[8]-@XMM[9]}, [$inp]! @ reload input + veor @XMM[0], @XMM[0], @XMM[14] @ ^= IV + vld1.8 {@XMM[10]-@XMM[11]}, [$inp]! + veor @XMM[1], @XMM[1], @XMM[8] + veor @XMM[6], @XMM[6], @XMM[9] + vld1.8 {@XMM[12]-@XMM[13]}, [$inp]! + veor @XMM[4], @XMM[4], @XMM[10] + veor @XMM[2], @XMM[2], @XMM[11] + vld1.8 {@XMM[14]-@XMM[15]}, [$inp]! + veor @XMM[7], @XMM[7], @XMM[12] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + veor @XMM[3], @XMM[3], @XMM[13] + vst1.8 {@XMM[6]}, [$out]! + veor @XMM[5], @XMM[5], @XMM[14] + vst1.8 {@XMM[4]}, [$out]! + vst1.8 {@XMM[2]}, [$out]! + vst1.8 {@XMM[7]}, [$out]! + vst1.8 {@XMM[3]}, [$out]! + vst1.8 {@XMM[5]}, [$out]! + + b .Lcbc_dec_loop + +.Lcbc_dec_loop_finish: + adds $len, $len, #8 + beq .Lcbc_dec_done + + vld1.8 {@XMM[0]}, [$inp]! @ load input + cmp $len, #2 + blo .Lcbc_dec_one + vld1.8 {@XMM[1]}, [$inp]! +#ifndef BSAES_ASM_EXTENDED_KEY + mov r4, $keysched @ pass the key +#else + add r4, $key, #248 +#endif + mov r5, $rounds + vstmia $fp, {@XMM[15]} @ put aside IV + beq .Lcbc_dec_two + vld1.8 {@XMM[2]}, [$inp]! + cmp $len, #4 + blo .Lcbc_dec_three + vld1.8 {@XMM[3]}, [$inp]! + beq .Lcbc_dec_four + vld1.8 {@XMM[4]}, [$inp]! + cmp $len, #6 + blo .Lcbc_dec_five + vld1.8 {@XMM[5]}, [$inp]! + beq .Lcbc_dec_six + vld1.8 {@XMM[6]}, [$inp]! + sub $inp, $inp, #0x70 + + bl _bsaes_decrypt8 + + vldmia $fp, {@XMM[14]} @ reload IV + vld1.8 {@XMM[8]-@XMM[9]}, [$inp]! @ reload input + veor @XMM[0], @XMM[0], @XMM[14] @ ^= IV + vld1.8 {@XMM[10]-@XMM[11]}, [$inp]! + veor @XMM[1], @XMM[1], @XMM[8] + veor @XMM[6], @XMM[6], @XMM[9] + vld1.8 {@XMM[12]-@XMM[13]}, [$inp]! + veor @XMM[4], @XMM[4], @XMM[10] + veor @XMM[2], @XMM[2], @XMM[11] + vld1.8 {@XMM[15]}, [$inp]! + veor @XMM[7], @XMM[7], @XMM[12] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + veor @XMM[3], @XMM[3], @XMM[13] + vst1.8 {@XMM[6]}, [$out]! + vst1.8 {@XMM[4]}, [$out]! + vst1.8 {@XMM[2]}, [$out]! + vst1.8 {@XMM[7]}, [$out]! + vst1.8 {@XMM[3]}, [$out]! + b .Lcbc_dec_done +.align 4 +.Lcbc_dec_six: + sub $inp, $inp, #0x60 + bl _bsaes_decrypt8 + vldmia $fp,{@XMM[14]} @ reload IV + vld1.8 {@XMM[8]-@XMM[9]}, [$inp]! @ reload input + veor @XMM[0], @XMM[0], @XMM[14] @ ^= IV + vld1.8 {@XMM[10]-@XMM[11]}, [$inp]! + veor @XMM[1], @XMM[1], @XMM[8] + veor @XMM[6], @XMM[6], @XMM[9] + vld1.8 {@XMM[12]}, [$inp]! + veor @XMM[4], @XMM[4], @XMM[10] + veor @XMM[2], @XMM[2], @XMM[11] + vld1.8 {@XMM[15]}, [$inp]! + veor @XMM[7], @XMM[7], @XMM[12] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + vst1.8 {@XMM[6]}, [$out]! + vst1.8 {@XMM[4]}, [$out]! + vst1.8 {@XMM[2]}, [$out]! + vst1.8 {@XMM[7]}, [$out]! + b .Lcbc_dec_done +.align 4 +.Lcbc_dec_five: + sub $inp, $inp, #0x50 + bl _bsaes_decrypt8 + vldmia $fp, {@XMM[14]} @ reload IV + vld1.8 {@XMM[8]-@XMM[9]}, [$inp]! @ reload input + veor @XMM[0], @XMM[0], @XMM[14] @ ^= IV + vld1.8 {@XMM[10]-@XMM[11]}, [$inp]! + veor @XMM[1], @XMM[1], @XMM[8] + veor @XMM[6], @XMM[6], @XMM[9] + vld1.8 {@XMM[15]}, [$inp]! + veor @XMM[4], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + veor @XMM[2], @XMM[2], @XMM[11] + vst1.8 {@XMM[6]}, [$out]! + vst1.8 {@XMM[4]}, [$out]! + vst1.8 {@XMM[2]}, [$out]! + b .Lcbc_dec_done +.align 4 +.Lcbc_dec_four: + sub $inp, $inp, #0x40 + bl _bsaes_decrypt8 + vldmia $fp, {@XMM[14]} @ reload IV + vld1.8 {@XMM[8]-@XMM[9]}, [$inp]! @ reload input + veor @XMM[0], @XMM[0], @XMM[14] @ ^= IV + vld1.8 {@XMM[10]}, [$inp]! + veor @XMM[1], @XMM[1], @XMM[8] + veor @XMM[6], @XMM[6], @XMM[9] + vld1.8 {@XMM[15]}, [$inp]! + veor @XMM[4], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + vst1.8 {@XMM[6]}, [$out]! + vst1.8 {@XMM[4]}, [$out]! + b .Lcbc_dec_done +.align 4 +.Lcbc_dec_three: + sub $inp, $inp, #0x30 + bl _bsaes_decrypt8 + vldmia $fp, {@XMM[14]} @ reload IV + vld1.8 {@XMM[8]-@XMM[9]}, [$inp]! @ reload input + veor @XMM[0], @XMM[0], @XMM[14] @ ^= IV + vld1.8 {@XMM[15]}, [$inp]! + veor @XMM[1], @XMM[1], @XMM[8] + veor @XMM[6], @XMM[6], @XMM[9] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + vst1.8 {@XMM[6]}, [$out]! + b .Lcbc_dec_done +.align 4 +.Lcbc_dec_two: + sub $inp, $inp, #0x20 + bl _bsaes_decrypt8 + vldmia $fp, {@XMM[14]} @ reload IV + vld1.8 {@XMM[8]}, [$inp]! @ reload input + veor @XMM[0], @XMM[0], @XMM[14] @ ^= IV + vld1.8 {@XMM[15]}, [$inp]! @ reload input + veor @XMM[1], @XMM[1], @XMM[8] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + b .Lcbc_dec_done +.align 4 +.Lcbc_dec_one: + sub $inp, $inp, #0x10 + mov $rounds, $out @ save original out pointer + mov $out, $fp @ use the iv scratch space as out buffer + mov r2, $key + vmov @XMM[4],@XMM[15] @ just in case ensure that IV + vmov @XMM[5],@XMM[0] @ and input are preserved + bl AES_decrypt + vld1.8 {@XMM[0]}, [$fp,:64] @ load result + veor @XMM[0], @XMM[0], @XMM[4] @ ^= IV + vmov @XMM[15], @XMM[5] @ @XMM[5] holds input + vst1.8 {@XMM[0]}, [$rounds] @ write output + +.Lcbc_dec_done: +#ifndef BSAES_ASM_EXTENDED_KEY + vmov.i32 q0, #0 + vmov.i32 q1, #0 +.Lcbc_dec_bzero: @ wipe key schedule [if any] + vstmia $keysched!, {q0-q1} + cmp $keysched, $fp + bne .Lcbc_dec_bzero +#endif + + mov sp, $fp + add sp, #0x10 @ add sp,$fp,#0x10 is no good for thumb + vst1.8 {@XMM[15]}, [$ivp] @ return IV + VFP_ABI_POP + ldmia sp!, {r4-r10, pc} +.size bsaes_cbc_encrypt,.-bsaes_cbc_encrypt +___ +} +{ +my ($inp,$out,$len,$key, $ctr,$fp,$rounds)=(map("r$_",(0..3,8..10))); +my $const = "r6"; # shared with _bsaes_encrypt8_alt +my $keysched = "sp"; + +$code.=<<___; +.extern AES_encrypt +.global bsaes_ctr32_encrypt_blocks +.type bsaes_ctr32_encrypt_blocks,%function +.align 5 +bsaes_ctr32_encrypt_blocks: + cmp $len, #8 @ use plain AES for + blo .Lctr_enc_short @ small sizes + + mov ip, sp + stmdb sp!, {r4-r10, lr} + VFP_ABI_PUSH + ldr $ctr, [ip] @ ctr is 1st arg on the stack + sub sp, sp, #0x10 @ scratch space to carry over the ctr + mov $fp, sp @ save sp + + ldr $rounds, [$key, #240] @ get # of rounds +#ifndef BSAES_ASM_EXTENDED_KEY + @ allocate the key schedule on the stack + sub r12, sp, $rounds, lsl#7 @ 128 bytes per inner round key + add r12, #`128-32` @ size of bit-sliced key schedule + + @ populate the key schedule + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + mov sp, r12 @ sp is $keysched + bl _bsaes_key_convert + veor @XMM[7],@XMM[7],@XMM[15] @ fix up last round key + vstmia r12, {@XMM[7]} @ save last round key + + vld1.8 {@XMM[0]}, [$ctr] @ load counter + add $ctr, $const, #.LREVM0SR-.LM0 @ borrow $ctr + vldmia $keysched, {@XMM[4]} @ load round0 key +#else + ldr r12, [$key, #244] + eors r12, #1 + beq 0f + + @ populate the key schedule + str r12, [$key, #244] + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + add r12, $key, #248 @ pass key schedule + bl _bsaes_key_convert + veor @XMM[7],@XMM[7],@XMM[15] @ fix up last round key + vstmia r12, {@XMM[7]} @ save last round key + +.align 2 +0: add r12, $key, #248 + vld1.8 {@XMM[0]}, [$ctr] @ load counter + adrl $ctr, .LREVM0SR @ borrow $ctr + vldmia r12, {@XMM[4]} @ load round0 key + sub sp, #0x10 @ place for adjusted round0 key +#endif + + vmov.i32 @XMM[8],#1 @ compose 1<<96 + veor @XMM[9],@XMM[9],@XMM[9] + vrev32.8 @XMM[0],@XMM[0] + vext.8 @XMM[8],@XMM[9],@XMM[8],#4 + vrev32.8 @XMM[4],@XMM[4] + vadd.u32 @XMM[9],@XMM[8],@XMM[8] @ compose 2<<96 + vstmia $keysched, {@XMM[4]} @ save adjusted round0 key + b .Lctr_enc_loop + +.align 4 +.Lctr_enc_loop: + vadd.u32 @XMM[10], @XMM[8], @XMM[9] @ compose 3<<96 + vadd.u32 @XMM[1], @XMM[0], @XMM[8] @ +1 + vadd.u32 @XMM[2], @XMM[0], @XMM[9] @ +2 + vadd.u32 @XMM[3], @XMM[0], @XMM[10] @ +3 + vadd.u32 @XMM[4], @XMM[1], @XMM[10] + vadd.u32 @XMM[5], @XMM[2], @XMM[10] + vadd.u32 @XMM[6], @XMM[3], @XMM[10] + vadd.u32 @XMM[7], @XMM[4], @XMM[10] + vadd.u32 @XMM[10], @XMM[5], @XMM[10] @ next counter + + @ Borrow prologue from _bsaes_encrypt8 to use the opportunity + @ to flip byte order in 32-bit counter + + vldmia $keysched, {@XMM[9]} @ load round0 key +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, $keysched, #0x10 @ pass next round key +#else + add r4, $key, #`248+16` +#endif + vldmia $ctr, {@XMM[8]} @ .LREVM0SR + mov r5, $rounds @ pass rounds + vstmia $fp, {@XMM[10]} @ save next counter + sub $const, $ctr, #.LREVM0SR-.LSR @ pass constants + + bl _bsaes_encrypt8_alt + + subs $len, $len, #8 + blo .Lctr_enc_loop_done + + vld1.8 {@XMM[8]-@XMM[9]}, [$inp]! @ load input + vld1.8 {@XMM[10]-@XMM[11]}, [$inp]! + veor @XMM[0], @XMM[8] + veor @XMM[1], @XMM[9] + vld1.8 {@XMM[12]-@XMM[13]}, [$inp]! + veor @XMM[4], @XMM[10] + veor @XMM[6], @XMM[11] + vld1.8 {@XMM[14]-@XMM[15]}, [$inp]! + veor @XMM[3], @XMM[12] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! @ write output + veor @XMM[7], @XMM[13] + veor @XMM[2], @XMM[14] + vst1.8 {@XMM[4]}, [$out]! + veor @XMM[5], @XMM[15] + vst1.8 {@XMM[6]}, [$out]! + vmov.i32 @XMM[8], #1 @ compose 1<<96 + vst1.8 {@XMM[3]}, [$out]! + veor @XMM[9], @XMM[9], @XMM[9] + vst1.8 {@XMM[7]}, [$out]! + vext.8 @XMM[8], @XMM[9], @XMM[8], #4 + vst1.8 {@XMM[2]}, [$out]! + vadd.u32 @XMM[9],@XMM[8],@XMM[8] @ compose 2<<96 + vst1.8 {@XMM[5]}, [$out]! + vldmia $fp, {@XMM[0]} @ load counter + + bne .Lctr_enc_loop + b .Lctr_enc_done + +.align 4 +.Lctr_enc_loop_done: + add $len, $len, #8 + vld1.8 {@XMM[8]}, [$inp]! @ load input + veor @XMM[0], @XMM[8] + vst1.8 {@XMM[0]}, [$out]! @ write output + cmp $len, #2 + blo .Lctr_enc_done + vld1.8 {@XMM[9]}, [$inp]! + veor @XMM[1], @XMM[9] + vst1.8 {@XMM[1]}, [$out]! + beq .Lctr_enc_done + vld1.8 {@XMM[10]}, [$inp]! + veor @XMM[4], @XMM[10] + vst1.8 {@XMM[4]}, [$out]! + cmp $len, #4 + blo .Lctr_enc_done + vld1.8 {@XMM[11]}, [$inp]! + veor @XMM[6], @XMM[11] + vst1.8 {@XMM[6]}, [$out]! + beq .Lctr_enc_done + vld1.8 {@XMM[12]}, [$inp]! + veor @XMM[3], @XMM[12] + vst1.8 {@XMM[3]}, [$out]! + cmp $len, #6 + blo .Lctr_enc_done + vld1.8 {@XMM[13]}, [$inp]! + veor @XMM[7], @XMM[13] + vst1.8 {@XMM[7]}, [$out]! + beq .Lctr_enc_done + vld1.8 {@XMM[14]}, [$inp] + veor @XMM[2], @XMM[14] + vst1.8 {@XMM[2]}, [$out]! + +.Lctr_enc_done: + vmov.i32 q0, #0 + vmov.i32 q1, #0 +#ifndef BSAES_ASM_EXTENDED_KEY +.Lctr_enc_bzero: @ wipe key schedule [if any] + vstmia $keysched!, {q0-q1} + cmp $keysched, $fp + bne .Lctr_enc_bzero +#else + vstmia $keysched, {q0-q1} +#endif + + mov sp, $fp + add sp, #0x10 @ add sp,$fp,#0x10 is no good for thumb + VFP_ABI_POP + ldmia sp!, {r4-r10, pc} @ return + +.align 4 +.Lctr_enc_short: + ldr ip, [sp] @ ctr pointer is passed on stack + stmdb sp!, {r4-r8, lr} + + mov r4, $inp @ copy arguments + mov r5, $out + mov r6, $len + mov r7, $key + ldr r8, [ip, #12] @ load counter LSW + vld1.8 {@XMM[1]}, [ip] @ load whole counter value +#ifdef __ARMEL__ + rev r8, r8 +#endif + sub sp, sp, #0x10 + vst1.8 {@XMM[1]}, [sp,:64] @ copy counter value + sub sp, sp, #0x10 + +.Lctr_enc_short_loop: + add r0, sp, #0x10 @ input counter value + mov r1, sp @ output on the stack + mov r2, r7 @ key + + bl AES_encrypt + + vld1.8 {@XMM[0]}, [r4]! @ load input + vld1.8 {@XMM[1]}, [sp,:64] @ load encrypted counter + add r8, r8, #1 +#ifdef __ARMEL__ + rev r0, r8 + str r0, [sp, #0x1c] @ next counter value +#else + str r8, [sp, #0x1c] @ next counter value +#endif + veor @XMM[0],@XMM[0],@XMM[1] + vst1.8 {@XMM[0]}, [r5]! @ store output + subs r6, r6, #1 + bne .Lctr_enc_short_loop + + vmov.i32 q0, #0 + vmov.i32 q1, #0 + vstmia sp!, {q0-q1} + + ldmia sp!, {r4-r8, pc} +.size bsaes_ctr32_encrypt_blocks,.-bsaes_ctr32_encrypt_blocks +___ +} +{ +###################################################################### +# void bsaes_xts_[en|de]crypt(const char *inp,char *out,size_t len, +# const AES_KEY *key1, const AES_KEY *key2, +# const unsigned char iv[16]); +# +my ($inp,$out,$len,$key,$rounds,$magic,$fp)=(map("r$_",(7..10,1..3))); +my $const="r6"; # returned by _bsaes_key_convert +my $twmask=@XMM[5]; +my @T=@XMM[6..7]; + +$code.=<<___; +.globl bsaes_xts_encrypt +.type bsaes_xts_encrypt,%function +.align 4 +bsaes_xts_encrypt: + mov ip, sp + stmdb sp!, {r4-r10, lr} @ 0x20 + VFP_ABI_PUSH + mov r6, sp @ future $fp + + mov $inp, r0 + mov $out, r1 + mov $len, r2 + mov $key, r3 + + sub r0, sp, #0x10 @ 0x10 + bic r0, #0xf @ align at 16 bytes + mov sp, r0 + +#ifdef XTS_CHAIN_TWEAK + ldr r0, [ip] @ pointer to input tweak +#else + @ generate initial tweak + ldr r0, [ip, #4] @ iv[] + mov r1, sp + ldr r2, [ip, #0] @ key2 + bl AES_encrypt + mov r0,sp @ pointer to initial tweak +#endif + + ldr $rounds, [$key, #240] @ get # of rounds + mov $fp, r6 +#ifndef BSAES_ASM_EXTENDED_KEY + @ allocate the key schedule on the stack + sub r12, sp, $rounds, lsl#7 @ 128 bytes per inner round key + @ add r12, #`128-32` @ size of bit-sliced key schedule + sub r12, #`32+16` @ place for tweak[9] + + @ populate the key schedule + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + mov sp, r12 + add r12, #0x90 @ pass key schedule + bl _bsaes_key_convert + veor @XMM[7], @XMM[7], @XMM[15] @ fix up last round key + vstmia r12, {@XMM[7]} @ save last round key +#else + ldr r12, [$key, #244] + eors r12, #1 + beq 0f + + str r12, [$key, #244] + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + add r12, $key, #248 @ pass key schedule + bl _bsaes_key_convert + veor @XMM[7], @XMM[7], @XMM[15] @ fix up last round key + vstmia r12, {@XMM[7]} + +.align 2 +0: sub sp, #0x90 @ place for tweak[9] +#endif + + vld1.8 {@XMM[8]}, [r0] @ initial tweak + adr $magic, .Lxts_magic + + subs $len, #0x80 + blo .Lxts_enc_short + b .Lxts_enc_loop + +.align 4 +.Lxts_enc_loop: + vldmia $magic, {$twmask} @ load XTS magic + vshr.s64 @T[0], @XMM[8], #63 + mov r0, sp + vand @T[0], @T[0], $twmask +___ +for($i=9;$i<16;$i++) { +$code.=<<___; + vadd.u64 @XMM[$i], @XMM[$i-1], @XMM[$i-1] + vst1.64 {@XMM[$i-1]}, [r0,:128]! + vswp `&Dhi("@T[0]")`,`&Dlo("@T[0]")` + vshr.s64 @T[1], @XMM[$i], #63 + veor @XMM[$i], @XMM[$i], @T[0] + vand @T[1], @T[1], $twmask +___ + @T=reverse(@T); + +$code.=<<___ if ($i>=10); + vld1.8 {@XMM[$i-10]}, [$inp]! +___ +$code.=<<___ if ($i>=11); + veor @XMM[$i-11], @XMM[$i-11], @XMM[$i-3] +___ +} +$code.=<<___; + vadd.u64 @XMM[8], @XMM[15], @XMM[15] + vst1.64 {@XMM[15]}, [r0,:128]! + vswp `&Dhi("@T[0]")`,`&Dlo("@T[0]")` + veor @XMM[8], @XMM[8], @T[0] + vst1.64 {@XMM[8]}, [r0,:128] @ next round tweak + + vld1.8 {@XMM[6]-@XMM[7]}, [$inp]! + veor @XMM[5], @XMM[5], @XMM[13] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[6], @XMM[6], @XMM[14] + mov r5, $rounds @ pass rounds + veor @XMM[7], @XMM[7], @XMM[15] + mov r0, sp + + bl _bsaes_encrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]-@XMM[13]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[6], @XMM[11] + vld1.64 {@XMM[14]-@XMM[15]}, [r0,:128]! + veor @XMM[10], @XMM[3], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + veor @XMM[11], @XMM[7], @XMM[13] + veor @XMM[12], @XMM[2], @XMM[14] + vst1.8 {@XMM[10]-@XMM[11]}, [$out]! + veor @XMM[13], @XMM[5], @XMM[15] + vst1.8 {@XMM[12]-@XMM[13]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + + subs $len, #0x80 + bpl .Lxts_enc_loop + +.Lxts_enc_short: + adds $len, #0x70 + bmi .Lxts_enc_done + + vldmia $magic, {$twmask} @ load XTS magic + vshr.s64 @T[0], @XMM[8], #63 + mov r0, sp + vand @T[0], @T[0], $twmask +___ +for($i=9;$i<16;$i++) { +$code.=<<___; + vadd.u64 @XMM[$i], @XMM[$i-1], @XMM[$i-1] + vst1.64 {@XMM[$i-1]}, [r0,:128]! + vswp `&Dhi("@T[0]")`,`&Dlo("@T[0]")` + vshr.s64 @T[1], @XMM[$i], #63 + veor @XMM[$i], @XMM[$i], @T[0] + vand @T[1], @T[1], $twmask +___ + @T=reverse(@T); + +$code.=<<___ if ($i>=10); + vld1.8 {@XMM[$i-10]}, [$inp]! + subs $len, #0x10 + bmi .Lxts_enc_`$i-9` +___ +$code.=<<___ if ($i>=11); + veor @XMM[$i-11], @XMM[$i-11], @XMM[$i-3] +___ +} +$code.=<<___; + sub $len, #0x10 + vst1.64 {@XMM[15]}, [r0,:128] @ next round tweak + + vld1.8 {@XMM[6]}, [$inp]! + veor @XMM[5], @XMM[5], @XMM[13] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[6], @XMM[6], @XMM[14] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_encrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]-@XMM[13]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[6], @XMM[11] + vld1.64 {@XMM[14]}, [r0,:128]! + veor @XMM[10], @XMM[3], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + veor @XMM[11], @XMM[7], @XMM[13] + veor @XMM[12], @XMM[2], @XMM[14] + vst1.8 {@XMM[10]-@XMM[11]}, [$out]! + vst1.8 {@XMM[12]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_enc_done +.align 4 +.Lxts_enc_6: + vst1.64 {@XMM[14]}, [r0,:128] @ next round tweak + + veor @XMM[4], @XMM[4], @XMM[12] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[5], @XMM[5], @XMM[13] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_encrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]-@XMM[13]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[6], @XMM[11] + veor @XMM[10], @XMM[3], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + veor @XMM[11], @XMM[7], @XMM[13] + vst1.8 {@XMM[10]-@XMM[11]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_enc_done + +@ put this in range for both ARM and Thumb mode adr instructions +.align 5 +.Lxts_magic: + .quad 1, 0x87 + +.align 5 +.Lxts_enc_5: + vst1.64 {@XMM[13]}, [r0,:128] @ next round tweak + + veor @XMM[3], @XMM[3], @XMM[11] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[4], @XMM[4], @XMM[12] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_encrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[6], @XMM[11] + veor @XMM[10], @XMM[3], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + vst1.8 {@XMM[10]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_enc_done +.align 4 +.Lxts_enc_4: + vst1.64 {@XMM[12]}, [r0,:128] @ next round tweak + + veor @XMM[2], @XMM[2], @XMM[10] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[3], @XMM[3], @XMM[11] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_encrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[6], @XMM[11] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_enc_done +.align 4 +.Lxts_enc_3: + vst1.64 {@XMM[11]}, [r0,:128] @ next round tweak + + veor @XMM[1], @XMM[1], @XMM[9] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[2], @XMM[2], @XMM[10] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_encrypt8 + + vld1.64 {@XMM[8]-@XMM[9]}, [r0,:128]! + vld1.64 {@XMM[10]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[4], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + vst1.8 {@XMM[8]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_enc_done +.align 4 +.Lxts_enc_2: + vst1.64 {@XMM[10]}, [r0,:128] @ next round tweak + + veor @XMM[0], @XMM[0], @XMM[8] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[1], @XMM[1], @XMM[9] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_encrypt8 + + vld1.64 {@XMM[8]-@XMM[9]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + veor @XMM[1], @XMM[1], @XMM[ 9] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_enc_done +.align 4 +.Lxts_enc_1: + mov r0, sp + veor @XMM[0], @XMM[8] + mov r1, sp + vst1.8 {@XMM[0]}, [sp,:128] + mov r2, $key + mov r4, $fp @ preserve fp + + bl AES_encrypt + + vld1.8 {@XMM[0]}, [sp,:128] + veor @XMM[0], @XMM[0], @XMM[8] + vst1.8 {@XMM[0]}, [$out]! + mov $fp, r4 + + vmov @XMM[8], @XMM[9] @ next round tweak + +.Lxts_enc_done: +#ifndef XTS_CHAIN_TWEAK + adds $len, #0x10 + beq .Lxts_enc_ret + sub r6, $out, #0x10 + +.Lxts_enc_steal: + ldrb r0, [$inp], #1 + ldrb r1, [$out, #-0x10] + strb r0, [$out, #-0x10] + strb r1, [$out], #1 + + subs $len, #1 + bhi .Lxts_enc_steal + + vld1.8 {@XMM[0]}, [r6] + mov r0, sp + veor @XMM[0], @XMM[0], @XMM[8] + mov r1, sp + vst1.8 {@XMM[0]}, [sp,:128] + mov r2, $key + mov r4, $fp @ preserve fp + + bl AES_encrypt + + vld1.8 {@XMM[0]}, [sp,:128] + veor @XMM[0], @XMM[0], @XMM[8] + vst1.8 {@XMM[0]}, [r6] + mov $fp, r4 +#endif + +.Lxts_enc_ret: + bic r0, $fp, #0xf + vmov.i32 q0, #0 + vmov.i32 q1, #0 +#ifdef XTS_CHAIN_TWEAK + ldr r1, [$fp, #0x20+VFP_ABI_FRAME] @ chain tweak +#endif +.Lxts_enc_bzero: @ wipe key schedule [if any] + vstmia sp!, {q0-q1} + cmp sp, r0 + bne .Lxts_enc_bzero + + mov sp, $fp +#ifdef XTS_CHAIN_TWEAK + vst1.8 {@XMM[8]}, [r1] +#endif + VFP_ABI_POP + ldmia sp!, {r4-r10, pc} @ return + +.size bsaes_xts_encrypt,.-bsaes_xts_encrypt + +.globl bsaes_xts_decrypt +.type bsaes_xts_decrypt,%function +.align 4 +bsaes_xts_decrypt: + mov ip, sp + stmdb sp!, {r4-r10, lr} @ 0x20 + VFP_ABI_PUSH + mov r6, sp @ future $fp + + mov $inp, r0 + mov $out, r1 + mov $len, r2 + mov $key, r3 + + sub r0, sp, #0x10 @ 0x10 + bic r0, #0xf @ align at 16 bytes + mov sp, r0 + +#ifdef XTS_CHAIN_TWEAK + ldr r0, [ip] @ pointer to input tweak +#else + @ generate initial tweak + ldr r0, [ip, #4] @ iv[] + mov r1, sp + ldr r2, [ip, #0] @ key2 + bl AES_encrypt + mov r0, sp @ pointer to initial tweak +#endif + + ldr $rounds, [$key, #240] @ get # of rounds + mov $fp, r6 +#ifndef BSAES_ASM_EXTENDED_KEY + @ allocate the key schedule on the stack + sub r12, sp, $rounds, lsl#7 @ 128 bytes per inner round key + @ add r12, #`128-32` @ size of bit-sliced key schedule + sub r12, #`32+16` @ place for tweak[9] + + @ populate the key schedule + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + mov sp, r12 + add r12, #0x90 @ pass key schedule + bl _bsaes_key_convert + add r4, sp, #0x90 + vldmia r4, {@XMM[6]} + vstmia r12, {@XMM[15]} @ save last round key + veor @XMM[7], @XMM[7], @XMM[6] @ fix up round 0 key + vstmia r4, {@XMM[7]} +#else + ldr r12, [$key, #244] + eors r12, #1 + beq 0f + + str r12, [$key, #244] + mov r4, $key @ pass key + mov r5, $rounds @ pass # of rounds + add r12, $key, #248 @ pass key schedule + bl _bsaes_key_convert + add r4, $key, #248 + vldmia r4, {@XMM[6]} + vstmia r12, {@XMM[15]} @ save last round key + veor @XMM[7], @XMM[7], @XMM[6] @ fix up round 0 key + vstmia r4, {@XMM[7]} + +.align 2 +0: sub sp, #0x90 @ place for tweak[9] +#endif + vld1.8 {@XMM[8]}, [r0] @ initial tweak + adr $magic, .Lxts_magic + + tst $len, #0xf @ if not multiple of 16 + it ne @ Thumb2 thing, sanity check in ARM + subne $len, #0x10 @ subtract another 16 bytes + subs $len, #0x80 + + blo .Lxts_dec_short + b .Lxts_dec_loop + +.align 4 +.Lxts_dec_loop: + vldmia $magic, {$twmask} @ load XTS magic + vshr.s64 @T[0], @XMM[8], #63 + mov r0, sp + vand @T[0], @T[0], $twmask +___ +for($i=9;$i<16;$i++) { +$code.=<<___; + vadd.u64 @XMM[$i], @XMM[$i-1], @XMM[$i-1] + vst1.64 {@XMM[$i-1]}, [r0,:128]! + vswp `&Dhi("@T[0]")`,`&Dlo("@T[0]")` + vshr.s64 @T[1], @XMM[$i], #63 + veor @XMM[$i], @XMM[$i], @T[0] + vand @T[1], @T[1], $twmask +___ + @T=reverse(@T); + +$code.=<<___ if ($i>=10); + vld1.8 {@XMM[$i-10]}, [$inp]! +___ +$code.=<<___ if ($i>=11); + veor @XMM[$i-11], @XMM[$i-11], @XMM[$i-3] +___ +} +$code.=<<___; + vadd.u64 @XMM[8], @XMM[15], @XMM[15] + vst1.64 {@XMM[15]}, [r0,:128]! + vswp `&Dhi("@T[0]")`,`&Dlo("@T[0]")` + veor @XMM[8], @XMM[8], @T[0] + vst1.64 {@XMM[8]}, [r0,:128] @ next round tweak + + vld1.8 {@XMM[6]-@XMM[7]}, [$inp]! + veor @XMM[5], @XMM[5], @XMM[13] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[6], @XMM[6], @XMM[14] + mov r5, $rounds @ pass rounds + veor @XMM[7], @XMM[7], @XMM[15] + mov r0, sp + + bl _bsaes_decrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]-@XMM[13]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[6], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[4], @XMM[11] + vld1.64 {@XMM[14]-@XMM[15]}, [r0,:128]! + veor @XMM[10], @XMM[2], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + veor @XMM[11], @XMM[7], @XMM[13] + veor @XMM[12], @XMM[3], @XMM[14] + vst1.8 {@XMM[10]-@XMM[11]}, [$out]! + veor @XMM[13], @XMM[5], @XMM[15] + vst1.8 {@XMM[12]-@XMM[13]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + + subs $len, #0x80 + bpl .Lxts_dec_loop + +.Lxts_dec_short: + adds $len, #0x70 + bmi .Lxts_dec_done + + vldmia $magic, {$twmask} @ load XTS magic + vshr.s64 @T[0], @XMM[8], #63 + mov r0, sp + vand @T[0], @T[0], $twmask +___ +for($i=9;$i<16;$i++) { +$code.=<<___; + vadd.u64 @XMM[$i], @XMM[$i-1], @XMM[$i-1] + vst1.64 {@XMM[$i-1]}, [r0,:128]! + vswp `&Dhi("@T[0]")`,`&Dlo("@T[0]")` + vshr.s64 @T[1], @XMM[$i], #63 + veor @XMM[$i], @XMM[$i], @T[0] + vand @T[1], @T[1], $twmask +___ + @T=reverse(@T); + +$code.=<<___ if ($i>=10); + vld1.8 {@XMM[$i-10]}, [$inp]! + subs $len, #0x10 + bmi .Lxts_dec_`$i-9` +___ +$code.=<<___ if ($i>=11); + veor @XMM[$i-11], @XMM[$i-11], @XMM[$i-3] +___ +} +$code.=<<___; + sub $len, #0x10 + vst1.64 {@XMM[15]}, [r0,:128] @ next round tweak + + vld1.8 {@XMM[6]}, [$inp]! + veor @XMM[5], @XMM[5], @XMM[13] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[6], @XMM[6], @XMM[14] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_decrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]-@XMM[13]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[6], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[4], @XMM[11] + vld1.64 {@XMM[14]}, [r0,:128]! + veor @XMM[10], @XMM[2], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + veor @XMM[11], @XMM[7], @XMM[13] + veor @XMM[12], @XMM[3], @XMM[14] + vst1.8 {@XMM[10]-@XMM[11]}, [$out]! + vst1.8 {@XMM[12]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_dec_done +.align 4 +.Lxts_dec_6: + vst1.64 {@XMM[14]}, [r0,:128] @ next round tweak + + veor @XMM[4], @XMM[4], @XMM[12] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[5], @XMM[5], @XMM[13] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_decrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]-@XMM[13]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[6], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[4], @XMM[11] + veor @XMM[10], @XMM[2], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + veor @XMM[11], @XMM[7], @XMM[13] + vst1.8 {@XMM[10]-@XMM[11]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_dec_done +.align 4 +.Lxts_dec_5: + vst1.64 {@XMM[13]}, [r0,:128] @ next round tweak + + veor @XMM[3], @XMM[3], @XMM[11] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[4], @XMM[4], @XMM[12] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_decrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + vld1.64 {@XMM[12]}, [r0,:128]! + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[6], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[4], @XMM[11] + veor @XMM[10], @XMM[2], @XMM[12] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + vst1.8 {@XMM[10]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_dec_done +.align 4 +.Lxts_dec_4: + vst1.64 {@XMM[12]}, [r0,:128] @ next round tweak + + veor @XMM[2], @XMM[2], @XMM[10] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[3], @XMM[3], @XMM[11] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_decrypt8 + + vld1.64 {@XMM[ 8]-@XMM[ 9]}, [r0,:128]! + vld1.64 {@XMM[10]-@XMM[11]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[6], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + veor @XMM[9], @XMM[4], @XMM[11] + vst1.8 {@XMM[8]-@XMM[9]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_dec_done +.align 4 +.Lxts_dec_3: + vst1.64 {@XMM[11]}, [r0,:128] @ next round tweak + + veor @XMM[1], @XMM[1], @XMM[9] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[2], @XMM[2], @XMM[10] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_decrypt8 + + vld1.64 {@XMM[8]-@XMM[9]}, [r0,:128]! + vld1.64 {@XMM[10]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + veor @XMM[1], @XMM[1], @XMM[ 9] + veor @XMM[8], @XMM[6], @XMM[10] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + vst1.8 {@XMM[8]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_dec_done +.align 4 +.Lxts_dec_2: + vst1.64 {@XMM[10]}, [r0,:128] @ next round tweak + + veor @XMM[0], @XMM[0], @XMM[8] +#ifndef BSAES_ASM_EXTENDED_KEY + add r4, sp, #0x90 @ pass key schedule +#else + add r4, $key, #248 @ pass key schedule +#endif + veor @XMM[1], @XMM[1], @XMM[9] + mov r5, $rounds @ pass rounds + mov r0, sp + + bl _bsaes_decrypt8 + + vld1.64 {@XMM[8]-@XMM[9]}, [r0,:128]! + veor @XMM[0], @XMM[0], @XMM[ 8] + veor @XMM[1], @XMM[1], @XMM[ 9] + vst1.8 {@XMM[0]-@XMM[1]}, [$out]! + + vld1.64 {@XMM[8]}, [r0,:128] @ next round tweak + b .Lxts_dec_done +.align 4 +.Lxts_dec_1: + mov r0, sp + veor @XMM[0], @XMM[8] + mov r1, sp + vst1.8 {@XMM[0]}, [sp,:128] + mov r2, $key + mov r4, $fp @ preserve fp + mov r5, $magic @ preserve magic + + bl AES_decrypt + + vld1.8 {@XMM[0]}, [sp,:128] + veor @XMM[0], @XMM[0], @XMM[8] + vst1.8 {@XMM[0]}, [$out]! + mov $fp, r4 + mov $magic, r5 + + vmov @XMM[8], @XMM[9] @ next round tweak + +.Lxts_dec_done: +#ifndef XTS_CHAIN_TWEAK + adds $len, #0x10 + beq .Lxts_dec_ret + + @ calculate one round of extra tweak for the stolen ciphertext + vldmia $magic, {$twmask} + vshr.s64 @XMM[6], @XMM[8], #63 + vand @XMM[6], @XMM[6], $twmask + vadd.u64 @XMM[9], @XMM[8], @XMM[8] + vswp `&Dhi("@XMM[6]")`,`&Dlo("@XMM[6]")` + veor @XMM[9], @XMM[9], @XMM[6] + + @ perform the final decryption with the last tweak value + vld1.8 {@XMM[0]}, [$inp]! + mov r0, sp + veor @XMM[0], @XMM[0], @XMM[9] + mov r1, sp + vst1.8 {@XMM[0]}, [sp,:128] + mov r2, $key + mov r4, $fp @ preserve fp + + bl AES_decrypt + + vld1.8 {@XMM[0]}, [sp,:128] + veor @XMM[0], @XMM[0], @XMM[9] + vst1.8 {@XMM[0]}, [$out] + + mov r6, $out +.Lxts_dec_steal: + ldrb r1, [$out] + ldrb r0, [$inp], #1 + strb r1, [$out, #0x10] + strb r0, [$out], #1 + + subs $len, #1 + bhi .Lxts_dec_steal + + vld1.8 {@XMM[0]}, [r6] + mov r0, sp + veor @XMM[0], @XMM[8] + mov r1, sp + vst1.8 {@XMM[0]}, [sp,:128] + mov r2, $key + + bl AES_decrypt + + vld1.8 {@XMM[0]}, [sp,:128] + veor @XMM[0], @XMM[0], @XMM[8] + vst1.8 {@XMM[0]}, [r6] + mov $fp, r4 +#endif + +.Lxts_dec_ret: + bic r0, $fp, #0xf + vmov.i32 q0, #0 + vmov.i32 q1, #0 +#ifdef XTS_CHAIN_TWEAK + ldr r1, [$fp, #0x20+VFP_ABI_FRAME] @ chain tweak +#endif +.Lxts_dec_bzero: @ wipe key schedule [if any] + vstmia sp!, {q0-q1} + cmp sp, r0 + bne .Lxts_dec_bzero + + mov sp, $fp +#ifdef XTS_CHAIN_TWEAK + vst1.8 {@XMM[8]}, [r1] +#endif + VFP_ABI_POP + ldmia sp!, {r4-r10, pc} @ return + +.size bsaes_xts_decrypt,.-bsaes_xts_decrypt +___ +} +$code.=<<___; +#endif +___ + +$code =~ s/\`([^\`]*)\`/eval($1)/gem; + +open SELF,$0; +while() { + next if (/^#!/); + last if (!s/^#/@/ and !/^$/); + print; +} +close SELF; + +print $code; + +close STDOUT; diff --git a/crypto/arm64cpuid.S b/crypto/arm64cpuid.S new file mode 100644 index 0000000..4778ac1 --- /dev/null +++ b/crypto/arm64cpuid.S @@ -0,0 +1,46 @@ +#include "arm_arch.h" + +.text +.arch armv8-a+crypto + +.align 5 +.global _armv7_neon_probe +.type _armv7_neon_probe,%function +_armv7_neon_probe: + orr v15.16b, v15.16b, v15.16b + ret +.size _armv7_neon_probe,.-_armv7_neon_probe + +.global _armv7_tick +.type _armv7_tick,%function +_armv7_tick: + mrs x0, CNTVCT_EL0 + ret +.size _armv7_tick,.-_armv7_tick + +.global _armv8_aes_probe +.type _armv8_aes_probe,%function +_armv8_aes_probe: + aese v0.16b, v0.16b + ret +.size _armv8_aes_probe,.-_armv8_aes_probe + +.global _armv8_sha1_probe +.type _armv8_sha1_probe,%function +_armv8_sha1_probe: + sha1h s0, s0 + ret +.size _armv8_sha1_probe,.-_armv8_sha1_probe + +.global _armv8_sha256_probe +.type _armv8_sha256_probe,%function +_armv8_sha256_probe: + sha256su0 v0.4s, v0.4s + ret +.size _armv8_sha256_probe,.-_armv8_sha256_probe +.global _armv8_pmull_probe +.type _armv8_pmull_probe,%function +_armv8_pmull_probe: + pmull v0.1q, v0.1d, v0.1d + ret +.size _armv8_pmull_probe,.-_armv8_pmull_probe diff --git a/crypto/arm_arch.h b/crypto/arm_arch.h index 5a83107..6fa8724 100644 --- a/crypto/arm_arch.h +++ b/crypto/arm_arch.h @@ -10,13 +10,24 @@ # define __ARMEL__ # endif # elif defined(__GNUC__) +# if defined(__aarch64__) +# define __ARM_ARCH__ 8 +# if __BYTE_ORDER__==__ORDER_BIG_ENDIAN__ +# define __ARMEB__ +# else +# define __ARMEL__ +# endif /* * Why doesn't gcc define __ARM_ARCH__? Instead it defines * bunch of below macros. See all_architectires[] table in * gcc/config/arm/arm.c. On a side note it defines * __ARMEL__/__ARMEB__ for little-/big-endian. */ -# if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || \ +# elif defined(__ARM_ARCH) +# define __ARM_ARCH__ __ARM_ARCH +# elif defined(__ARM_ARCH_8A__) +# define __ARM_ARCH__ 8 +# elif defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || \ defined(__ARM_ARCH_7R__)|| defined(__ARM_ARCH_7M__) || \ defined(__ARM_ARCH_7EM__) # define __ARM_ARCH__ 7 @@ -43,9 +54,13 @@ #if !__ASSEMBLER__ extern unsigned int OPENSSL_armcap_P; +#endif #define ARMV7_NEON (1<<0) #define ARMV7_TICK (1<<1) -#endif +#define ARMV8_AES (1<<2) +#define ARMV8_SHA1 (1<<3) +#define ARMV8_SHA256 (1<<4) +#define ARMV8_PMULL (1<<5) #endif diff --git a/crypto/armcap.c b/crypto/armcap.c index 9abaf39..7e46d07 100644 --- a/crypto/armcap.c +++ b/crypto/armcap.c @@ -19,9 +19,13 @@ static void ill_handler (int sig) { siglongjmp(ill_jmp,sig); } * ARM compilers support inline assembler... */ void _armv7_neon_probe(void); -unsigned int _armv7_tick(void); +void _armv8_aes_probe(void); +void _armv8_sha1_probe(void); +void _armv8_sha256_probe(void); +void _armv8_pmull_probe(void); +unsigned long _armv7_tick(void); -unsigned int OPENSSL_rdtsc(void) +unsigned long OPENSSL_rdtsc(void) { if (OPENSSL_armcap_P & ARMV7_TICK) return _armv7_tick(); @@ -29,9 +33,41 @@ unsigned int OPENSSL_rdtsc(void) return 0; } +/* + * Use a weak reference to getauxval() so we can use it if it is available but + * don't break the build if it is not. + */ #if defined(__GNUC__) && __GNUC__>=2 void OPENSSL_cpuid_setup(void) __attribute__((constructor)); +extern unsigned long getauxval(unsigned long type) __attribute__((weak)); +#else +static unsigned long (*getauxval)(unsigned long) = NULL; #endif + +/* + * ARM puts the the feature bits for Crypto Extensions in AT_HWCAP2, whereas + * AArch64 used AT_HWCAP. + */ +#if defined(__arm__) || defined (__arm) +# define HWCAP 16 /* AT_HWCAP */ +# define HWCAP_NEON (1 << 12) + +# define HWCAP_CE 26 /* AT_HWCAP2 */ +# define HWCAP_CE_AES (1 << 0) +# define HWCAP_CE_PMULL (1 << 1) +# define HWCAP_CE_SHA1 (1 << 2) +# define HWCAP_CE_SHA256 (1 << 3) +#elif defined(__aarch64__) +# define HWCAP 16 /* AT_HWCAP */ +# define HWCAP_NEON (1 << 1) + +# define HWCAP_CE HWCAP +# define HWCAP_CE_AES (1 << 3) +# define HWCAP_CE_PMULL (1 << 4) +# define HWCAP_CE_SHA1 (1 << 5) +# define HWCAP_CE_SHA256 (1 << 6) +#endif + void OPENSSL_cpuid_setup(void) { char *e; @@ -44,7 +80,7 @@ void OPENSSL_cpuid_setup(void) if ((e=getenv("OPENSSL_armcap"))) { - OPENSSL_armcap_P=strtoul(e,NULL,0); + OPENSSL_armcap_P=(unsigned int)strtoul(e,NULL,0); return; } @@ -64,10 +100,51 @@ void OPENSSL_cpuid_setup(void) sigprocmask(SIG_SETMASK,&ill_act.sa_mask,&oset); sigaction(SIGILL,&ill_act,&ill_oact); - if (sigsetjmp(ill_jmp,1) == 0) + if (getauxval != NULL) + { + if (getauxval(HWCAP) & HWCAP_NEON) + { + unsigned long hwcap = getauxval(HWCAP_CE); + + OPENSSL_armcap_P |= ARMV7_NEON; + + if (hwcap & HWCAP_CE_AES) + OPENSSL_armcap_P |= ARMV8_AES; + + if (hwcap & HWCAP_CE_PMULL) + OPENSSL_armcap_P |= ARMV8_PMULL; + + if (hwcap & HWCAP_CE_SHA1) + OPENSSL_armcap_P |= ARMV8_SHA1; + + if (hwcap & HWCAP_CE_SHA256) + OPENSSL_armcap_P |= ARMV8_SHA256; + } + } + else if (sigsetjmp(ill_jmp,1) == 0) { _armv7_neon_probe(); OPENSSL_armcap_P |= ARMV7_NEON; + if (sigsetjmp(ill_jmp,1) == 0) + { + _armv8_pmull_probe(); + OPENSSL_armcap_P |= ARMV8_PMULL|ARMV8_AES; + } + else if (sigsetjmp(ill_jmp,1) == 0) + { + _armv8_aes_probe(); + OPENSSL_armcap_P |= ARMV8_AES; + } + if (sigsetjmp(ill_jmp,1) == 0) + { + _armv8_sha1_probe(); + OPENSSL_armcap_P |= ARMV8_SHA1; + } + if (sigsetjmp(ill_jmp,1) == 0) + { + _armv8_sha256_probe(); + OPENSSL_armcap_P |= ARMV8_SHA256; + } } if (sigsetjmp(ill_jmp,1) == 0) { diff --git a/crypto/armv4cpuid.S b/crypto/armv4cpuid.S index 2d618de..add11d4 100644 --- a/crypto/armv4cpuid.S +++ b/crypto/armv4cpuid.S @@ -7,17 +7,49 @@ .global _armv7_neon_probe .type _armv7_neon_probe,%function _armv7_neon_probe: - .word 0xf26ee1fe @ vorr q15,q15,q15 - .word 0xe12fff1e @ bx lr + .byte 0xf0,0x01,0x60,0xf2 @ vorr q8,q8,q8 + .byte 0x1e,0xff,0x2f,0xe1 @ bx lr .size _armv7_neon_probe,.-_armv7_neon_probe .global _armv7_tick .type _armv7_tick,%function _armv7_tick: - mrc p15,0,r0,c9,c13,0 - .word 0xe12fff1e @ bx lr + mrrc p15,1,r0,r1,c14 @ CNTVCT +#if __ARM_ARCH__>=5 + bx lr +#else + .word 0xe12fff1e @ bx lr +#endif .size _armv7_tick,.-_armv7_tick +.global _armv8_aes_probe +.type _armv8_aes_probe,%function +_armv8_aes_probe: + .byte 0x00,0x03,0xb0,0xf3 @ aese.8 q0,q0 + .byte 0x1e,0xff,0x2f,0xe1 @ bx lr +.size _armv8_aes_probe,.-_armv8_aes_probe + +.global _armv8_sha1_probe +.type _armv8_sha1_probe,%function +_armv8_sha1_probe: + .byte 0x40,0x0c,0x00,0xf2 @ sha1c.32 q0,q0,q0 + .byte 0x1e,0xff,0x2f,0xe1 @ bx lr +.size _armv8_sha1_probe,.-_armv8_sha1_probe + +.global _armv8_sha256_probe +.type _armv8_sha256_probe,%function +_armv8_sha256_probe: + .byte 0x40,0x0c,0x00,0xf3 @ sha256h.32 q0,q0,q0 + .byte 0x1e,0xff,0x2f,0xe1 @ bx lr +.size _armv8_sha256_probe,.-_armv8_sha256_probe +.global _armv8_pmull_probe +.type _armv8_pmull_probe,%function +_armv8_pmull_probe: + .byte 0x00,0x0e,0xa0,0xf2 @ vmull.p64 q0,d0,d0 + .byte 0x1e,0xff,0x2f,0xe1 @ bx lr +.size _armv8_pmull_probe,.-_armv8_pmull_probe + +.align 5 .global OPENSSL_atomic_add .type OPENSSL_atomic_add,%function OPENSSL_atomic_add: @@ -28,7 +60,7 @@ OPENSSL_atomic_add: cmp r2,#0 bne .Ladd mov r0,r3 - .word 0xe12fff1e @ bx lr + bx lr #else stmdb sp!,{r4-r6,lr} ldr r2,.Lspinlock @@ -81,9 +113,13 @@ OPENSSL_cleanse: adds r1,r1,#4 bne .Little .Lcleanse_done: +#if __ARM_ARCH__>=5 + bx lr +#else tst lr,#1 moveq pc,lr .word 0xe12fff1e @ bx lr +#endif .size OPENSSL_cleanse,.-OPENSSL_cleanse .global OPENSSL_wipe_cpu @@ -97,41 +133,53 @@ OPENSSL_wipe_cpu: eor ip,ip,ip tst r0,#1 beq .Lwipe_done - .word 0xf3000150 @ veor q0, q0, q0 - .word 0xf3022152 @ veor q1, q1, q1 - .word 0xf3044154 @ veor q2, q2, q2 - .word 0xf3066156 @ veor q3, q3, q3 - .word 0xf34001f0 @ veor q8, q8, q8 - .word 0xf34221f2 @ veor q9, q9, q9 - .word 0xf34441f4 @ veor q10, q10, q10 - .word 0xf34661f6 @ veor q11, q11, q11 - .word 0xf34881f8 @ veor q12, q12, q12 - .word 0xf34aa1fa @ veor q13, q13, q13 - .word 0xf34cc1fc @ veor q14, q14, q14 - .word 0xf34ee1fe @ veor q15, q15, q15 + .byte 0x50,0x01,0x00,0xf3 @ veor q0, q0, q0 + .byte 0x52,0x21,0x02,0xf3 @ veor q1, q1, q1 + .byte 0x54,0x41,0x04,0xf3 @ veor q2, q2, q2 + .byte 0x56,0x61,0x06,0xf3 @ veor q3, q3, q3 + .byte 0xf0,0x01,0x40,0xf3 @ veor q8, q8, q8 + .byte 0xf2,0x21,0x42,0xf3 @ veor q9, q9, q9 + .byte 0xf4,0x41,0x44,0xf3 @ veor q10, q10, q10 + .byte 0xf6,0x61,0x46,0xf3 @ veor q11, q11, q11 + .byte 0xf8,0x81,0x48,0xf3 @ veor q12, q12, q12 + .byte 0xfa,0xa1,0x4a,0xf3 @ veor q13, q13, q13 + .byte 0xfc,0xc1,0x4c,0xf3 @ veor q14, q14, q14 + .byte 0xfe,0xe1,0x4e,0xf3 @ veor q14, q14, q14 .Lwipe_done: mov r0,sp +#if __ARM_ARCH__>=5 + bx lr +#else tst lr,#1 moveq pc,lr .word 0xe12fff1e @ bx lr +#endif .size OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu .global OPENSSL_instrument_bus .type OPENSSL_instrument_bus,%function OPENSSL_instrument_bus: eor r0,r0,r0 +#if __ARM_ARCH__>=5 + bx lr +#else tst lr,#1 moveq pc,lr .word 0xe12fff1e @ bx lr +#endif .size OPENSSL_instrument_bus,.-OPENSSL_instrument_bus .global OPENSSL_instrument_bus2 .type OPENSSL_instrument_bus2,%function OPENSSL_instrument_bus2: eor r0,r0,r0 +#if __ARM_ARCH__>=5 + bx lr +#else tst lr,#1 moveq pc,lr .word 0xe12fff1e @ bx lr +#endif .size OPENSSL_instrument_bus2,.-OPENSSL_instrument_bus2 .align 5 diff --git a/crypto/bn/Makefile b/crypto/bn/Makefile index 6dd136b..effc409 100644 --- a/crypto/bn/Makefile +++ b/crypto/bn/Makefile @@ -130,9 +130,10 @@ alpha-mont.s: asm/alpha-mont.pl $(CC) -E $$preproc > $@ && rm $$preproc) # GNU make "catch all" -%-mont.s: asm/%-mont.pl; $(PERL) $< $(PERLASM_SCHEME) $@ +%-mont.S: asm/%-mont.pl; $(PERL) $< $(PERLASM_SCHEME) $@ %-gf2m.S: asm/%-gf2m.pl; $(PERL) $< $(PERLASM_SCHEME) $@ +armv4-mont.o: armv4-mont.S armv4-gf2m.o: armv4-gf2m.S files: diff --git a/crypto/bn/asm/armv4-gf2m.pl b/crypto/bn/asm/armv4-gf2m.pl index c52e0b7..b781afb 100644 --- a/crypto/bn/asm/armv4-gf2m.pl +++ b/crypto/bn/asm/armv4-gf2m.pl @@ -20,14 +20,21 @@ # length, more for longer keys. Even though NEON 1x1 multiplication # runs in even less cycles, ~30, improvement is measurable only on # longer keys. One has to optimize code elsewhere to get NEON glow... +# +# April 2014 +# +# Double bn_GF2m_mul_2x2 performance by using algorithm from paper +# referred below, which improves ECDH and ECDSA verify benchmarks +# by 18-40%. +# +# Câmara, D.; Gouvęa, C. P. L.; López, J. & Dahab, R.: Fast Software +# Polynomial Multiplication on ARM Processors using the NEON Engine. +# +# http://conradoplg.cryptoland.net/files/2010/12/mocrysen13.pdf while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} open STDOUT,">$output"; -sub Dlo() { shift=~m|q([1]?[0-9])|?"d".($1*2):""; } -sub Dhi() { shift=~m|q([1]?[0-9])|?"d".($1*2+1):""; } -sub Q() { shift=~m|d([1-3]?[02468])|?"q".($1/2):""; } - $code=<<___; #include "arm_arch.h" @@ -36,31 +43,6 @@ $code=<<___; #if __ARM_ARCH__>=7 .fpu neon - -.type mul_1x1_neon,%function -.align 5 -mul_1x1_neon: - vshl.u64 `&Dlo("q1")`,d16,#8 @ q1-q3 are slided $a - vmull.p8 `&Q("d0")`,d16,d17 @ a·bb - vshl.u64 `&Dlo("q2")`,d16,#16 - vmull.p8 q1,`&Dlo("q1")`,d17 @ a<<8·bb - vshl.u64 `&Dlo("q3")`,d16,#24 - vmull.p8 q2,`&Dlo("q2")`,d17 @ a<<16·bb - vshr.u64 `&Dlo("q1")`,#8 - vmull.p8 q3,`&Dlo("q3")`,d17 @ a<<24·bb - vshl.u64 `&Dhi("q1")`,#24 - veor d0,`&Dlo("q1")` - vshr.u64 `&Dlo("q2")`,#16 - veor d0,`&Dhi("q1")` - vshl.u64 `&Dhi("q2")`,#16 - veor d0,`&Dlo("q2")` - vshr.u64 `&Dlo("q3")`,#24 - veor d0,`&Dhi("q2")` - vshl.u64 `&Dhi("q3")`,#8 - veor d0,`&Dlo("q3")` - veor d0,`&Dhi("q3")` - bx lr -.size mul_1x1_neon,.-mul_1x1_neon #endif ___ ################ @@ -159,8 +141,9 @@ ___ # void bn_GF2m_mul_2x2(BN_ULONG *r, # BN_ULONG a1,BN_ULONG a0, # BN_ULONG b1,BN_ULONG b0); # r[3..0]=a1a0·b1b0 - -($A1,$B1,$A0,$B0,$A1B1,$A0B0)=map("d$_",(18..23)); +{ +my ($r,$t0,$t1,$t2,$t3)=map("q$_",(0..3,8..12)); +my ($a,$b,$k48,$k32,$k16)=map("d$_",(26..31)); $code.=<<___; .global bn_GF2m_mul_2x2 @@ -173,44 +156,58 @@ bn_GF2m_mul_2x2: tst r12,#1 beq .Lialu - veor $A1,$A1 - vmov.32 $B1,r3,r3 @ two copies of b1 - vmov.32 ${A1}[0],r1 @ a1 - - veor $A0,$A0 - vld1.32 ${B0}[],[sp,:32] @ two copies of b0 - vmov.32 ${A0}[0],r2 @ a0 - mov r12,lr - - vmov d16,$A1 - vmov d17,$B1 - bl mul_1x1_neon @ a1·b1 - vmov $A1B1,d0 - - vmov d16,$A0 - vmov d17,$B0 - bl mul_1x1_neon @ a0·b0 - vmov $A0B0,d0 - - veor d16,$A0,$A1 - veor d17,$B0,$B1 - veor $A0,$A0B0,$A1B1 - bl mul_1x1_neon @ (a0+a1)·(b0+b1) - - veor d0,$A0 @ (a0+a1)·(b0+b1)-a0·b0-a1·b1 - vshl.u64 d1,d0,#32 - vshr.u64 d0,d0,#32 - veor $A0B0,d1 - veor $A1B1,d0 - vst1.32 {${A0B0}[0]},[r0,:32]! - vst1.32 {${A0B0}[1]},[r0,:32]! - vst1.32 {${A1B1}[0]},[r0,:32]! - vst1.32 {${A1B1}[1]},[r0,:32] - bx r12 + ldr r12, [sp] @ 5th argument + vmov.32 $a, r2, r1 + vmov.32 $b, r12, r3 + vmov.i64 $k48, #0x0000ffffffffffff + vmov.i64 $k32, #0x00000000ffffffff + vmov.i64 $k16, #0x000000000000ffff + + vext.8 $t0#lo, $a, $a, #1 @ A1 + vmull.p8 $t0, $t0#lo, $b @ F = A1*B + vext.8 $r#lo, $b, $b, #1 @ B1 + vmull.p8 $r, $a, $r#lo @ E = A*B1 + vext.8 $t1#lo, $a, $a, #2 @ A2 + vmull.p8 $t1, $t1#lo, $b @ H = A2*B + vext.8 $t3#lo, $b, $b, #2 @ B2 + vmull.p8 $t3, $a, $t3#lo @ G = A*B2 + vext.8 $t2#lo, $a, $a, #3 @ A3 + veor $t0, $t0, $r @ L = E + F + vmull.p8 $t2, $t2#lo, $b @ J = A3*B + vext.8 $r#lo, $b, $b, #3 @ B3 + veor $t1, $t1, $t3 @ M = G + H + vmull.p8 $r, $a, $r#lo @ I = A*B3 + veor $t0#lo, $t0#lo, $t0#hi @ t0 = (L) (P0 + P1) << 8 + vand $t0#hi, $t0#hi, $k48 + vext.8 $t3#lo, $b, $b, #4 @ B4 + veor $t1#lo, $t1#lo, $t1#hi @ t1 = (M) (P2 + P3) << 16 + vand $t1#hi, $t1#hi, $k32 + vmull.p8 $t3, $a, $t3#lo @ K = A*B4 + veor $t2, $t2, $r @ N = I + J + veor $t0#lo, $t0#lo, $t0#hi + veor $t1#lo, $t1#lo, $t1#hi + veor $t2#lo, $t2#lo, $t2#hi @ t2 = (N) (P4 + P5) << 24 + vand $t2#hi, $t2#hi, $k16 + vext.8 $t0, $t0, $t0, #15 + veor $t3#lo, $t3#lo, $t3#hi @ t3 = (K) (P6 + P7) << 32 + vmov.i64 $t3#hi, #0 + vext.8 $t1, $t1, $t1, #14 + veor $t2#lo, $t2#lo, $t2#hi + vmull.p8 $r, $a, $b @ D = A*B + vext.8 $t3, $t3, $t3, #12 + vext.8 $t2, $t2, $t2, #13 + veor $t0, $t0, $t1 + veor $t2, $t2, $t3 + veor $r, $r, $t0 + veor $r, $r, $t2 + + vst1.32 {$r}, [r0] + ret @ bx lr .align 4 .Lialu: #endif ___ +} $ret="r10"; # reassigned 1st argument $code.=<<___; stmdb sp!,{r4-r10,lr} @@ -272,7 +269,13 @@ $code.=<<___; .comm OPENSSL_armcap_P,4,4 ___ -$code =~ s/\`([^\`]*)\`/eval $1/gem; -$code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4 -print $code; +foreach (split("\n",$code)) { + s/\`([^\`]*)\`/eval $1/geo; + + s/\bq([0-9]+)#(lo|hi)/sprintf "d%d",2*$1+($2 eq "hi")/geo or + s/\bret\b/bx lr/go or + s/\bbx\s+lr\b/.word\t0xe12fff1e/go; # make it possible to compile with -march=armv4 + + print $_,"\n"; +} close STDOUT; # enforce flush diff --git a/crypto/bn/asm/armv4-mont.pl b/crypto/bn/asm/armv4-mont.pl index f78a8b5..72bad8e 100644 --- a/crypto/bn/asm/armv4-mont.pl +++ b/crypto/bn/asm/armv4-mont.pl @@ -1,7 +1,7 @@ #!/usr/bin/env perl # ==================================================================== -# Written by Andy Polyakov for the OpenSSL +# Written by Andy Polyakov for the OpenSSL # project. The module is, however, dual licensed under OpenSSL and # CRYPTOGAMS licenses depending on where you obtain it. For further # details see http://www.openssl.org/~appro/cryptogams/. @@ -23,6 +23,21 @@ # than 1/2KB. Windows CE port would be trivial, as it's exclusively # about decorations, ABI and instruction syntax are identical. +# November 2013 +# +# Add NEON code path, which handles lengths divisible by 8. RSA/DSA +# performance improvement on Cortex-A8 is ~45-100% depending on key +# length, more for longer keys. On Cortex-A15 the span is ~10-105%. +# On Snapdragon S4 improvement was measured to vary from ~70% to +# incredible ~380%, yes, 4.8x faster, for RSA4096 sign. But this is +# rather because original integer-only code seems to perform +# suboptimally on S4. Situation on Cortex-A9 is unfortunately +# different. It's being looked into, but the trouble is that +# performance for vectors longer than 256 bits is actually couple +# of percent worse than for integer-only code. The code is chosen +# for execution on all NEON-capable processors, because gain on +# others outweighs the marginal loss on Cortex-A9. + while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} open STDOUT,">$output"; @@ -52,16 +67,40 @@ $_n0="$num,#14*4"; $_num="$num,#15*4"; $_bpend=$_num; $code=<<___; +#include "arm_arch.h" + .text +.code 32 + +#if __ARM_ARCH__>=7 +.align 5 +.LOPENSSL_armcap: +.word OPENSSL_armcap_P-bn_mul_mont +#endif .global bn_mul_mont .type bn_mul_mont,%function -.align 2 +.align 5 bn_mul_mont: + ldr ip,[sp,#4] @ load num stmdb sp!,{r0,r2} @ sp points at argument block - ldr $num,[sp,#3*4] @ load num - cmp $num,#2 +#if __ARM_ARCH__>=7 + tst ip,#7 + bne .Lialu + adr r0,bn_mul_mont + ldr r2,.LOPENSSL_armcap + ldr r0,[r0,r2] + tst r0,#1 @ NEON available? + ldmia sp, {r0,r2} + beq .Lialu + add sp,sp,#8 + b bn_mul8x_mont_neon +.align 4 +.Lialu: +#endif + cmp ip,#2 + mov $num,ip @ load num movlt r0,#0 addlt sp,sp,#2*4 blt .Labrt @@ -191,14 +230,446 @@ bn_mul_mont: ldmia sp!,{r4-r12,lr} @ restore registers add sp,sp,#2*4 @ skip over {r0,r2} mov r0,#1 -.Labrt: tst lr,#1 +.Labrt: +#if __ARM_ARCH__>=5 + ret @ bx lr +#else + tst lr,#1 moveq pc,lr @ be binary compatible with V4, yet bx lr @ interoperable with Thumb ISA:-) +#endif .size bn_mul_mont,.-bn_mul_mont -.asciz "Montgomery multiplication for ARMv4, CRYPTOGAMS by " +___ +{ +sub Dlo() { shift=~m|q([1]?[0-9])|?"d".($1*2):""; } +sub Dhi() { shift=~m|q([1]?[0-9])|?"d".($1*2+1):""; } + +my ($A0,$A1,$A2,$A3)=map("d$_",(0..3)); +my ($N0,$N1,$N2,$N3)=map("d$_",(4..7)); +my ($Z,$Temp)=("q4","q5"); +my ($A0xB,$A1xB,$A2xB,$A3xB,$A4xB,$A5xB,$A6xB,$A7xB)=map("q$_",(6..13)); +my ($Bi,$Ni,$M0)=map("d$_",(28..31)); +my $zero=&Dlo($Z); +my $temp=&Dlo($Temp); + +my ($rptr,$aptr,$bptr,$nptr,$n0,$num)=map("r$_",(0..5)); +my ($tinptr,$toutptr,$inner,$outer)=map("r$_",(6..9)); + +$code.=<<___; +#if __ARM_ARCH__>=7 +.fpu neon + +.type bn_mul8x_mont_neon,%function +.align 5 +bn_mul8x_mont_neon: + mov ip,sp + stmdb sp!,{r4-r11} + vstmdb sp!,{d8-d15} @ ABI specification says so + ldmia ip,{r4-r5} @ load rest of parameter block + + sub $toutptr,sp,#16 + vld1.32 {${Bi}[0]}, [$bptr,:32]! + sub $toutptr,$toutptr,$num,lsl#4 + vld1.32 {$A0-$A3}, [$aptr]! @ can't specify :32 :-( + and $toutptr,$toutptr,#-64 + vld1.32 {${M0}[0]}, [$n0,:32] + mov sp,$toutptr @ alloca + veor $zero,$zero,$zero + subs $inner,$num,#8 + vzip.16 $Bi,$zero + + vmull.u32 $A0xB,$Bi,${A0}[0] + vmull.u32 $A1xB,$Bi,${A0}[1] + vmull.u32 $A2xB,$Bi,${A1}[0] + vshl.i64 $temp,`&Dhi("$A0xB")`,#16 + vmull.u32 $A3xB,$Bi,${A1}[1] + + vadd.u64 $temp,$temp,`&Dlo("$A0xB")` + veor $zero,$zero,$zero + vmul.u32 $Ni,$temp,$M0 + + vmull.u32 $A4xB,$Bi,${A2}[0] + vld1.32 {$N0-$N3}, [$nptr]! + vmull.u32 $A5xB,$Bi,${A2}[1] + vmull.u32 $A6xB,$Bi,${A3}[0] + vzip.16 $Ni,$zero + vmull.u32 $A7xB,$Bi,${A3}[1] + + bne .LNEON_1st + + @ special case for num=8, everything is in register bank... + + vmlal.u32 $A0xB,$Ni,${N0}[0] + sub $outer,$num,#1 + vmlal.u32 $A1xB,$Ni,${N0}[1] + vmlal.u32 $A2xB,$Ni,${N1}[0] + vmlal.u32 $A3xB,$Ni,${N1}[1] + + vmlal.u32 $A4xB,$Ni,${N2}[0] + vmov $Temp,$A0xB + vmlal.u32 $A5xB,$Ni,${N2}[1] + vmov $A0xB,$A1xB + vmlal.u32 $A6xB,$Ni,${N3}[0] + vmov $A1xB,$A2xB + vmlal.u32 $A7xB,$Ni,${N3}[1] + vmov $A2xB,$A3xB + vmov $A3xB,$A4xB + vshr.u64 $temp,$temp,#16 + vmov $A4xB,$A5xB + vmov $A5xB,$A6xB + vadd.u64 $temp,$temp,`&Dhi("$Temp")` + vmov $A6xB,$A7xB + veor $A7xB,$A7xB + vshr.u64 $temp,$temp,#16 + + b .LNEON_outer8 + +.align 4 +.LNEON_outer8: + vld1.32 {${Bi}[0]}, [$bptr,:32]! + veor $zero,$zero,$zero + vzip.16 $Bi,$zero + vadd.u64 `&Dlo("$A0xB")`,`&Dlo("$A0xB")`,$temp + + vmlal.u32 $A0xB,$Bi,${A0}[0] + vmlal.u32 $A1xB,$Bi,${A0}[1] + vmlal.u32 $A2xB,$Bi,${A1}[0] + vshl.i64 $temp,`&Dhi("$A0xB")`,#16 + vmlal.u32 $A3xB,$Bi,${A1}[1] + + vadd.u64 $temp,$temp,`&Dlo("$A0xB")` + veor $zero,$zero,$zero + subs $outer,$outer,#1 + vmul.u32 $Ni,$temp,$M0 + + vmlal.u32 $A4xB,$Bi,${A2}[0] + vmlal.u32 $A5xB,$Bi,${A2}[1] + vmlal.u32 $A6xB,$Bi,${A3}[0] + vzip.16 $Ni,$zero + vmlal.u32 $A7xB,$Bi,${A3}[1] + + vmlal.u32 $A0xB,$Ni,${N0}[0] + vmlal.u32 $A1xB,$Ni,${N0}[1] + vmlal.u32 $A2xB,$Ni,${N1}[0] + vmlal.u32 $A3xB,$Ni,${N1}[1] + + vmlal.u32 $A4xB,$Ni,${N2}[0] + vmov $Temp,$A0xB + vmlal.u32 $A5xB,$Ni,${N2}[1] + vmov $A0xB,$A1xB + vmlal.u32 $A6xB,$Ni,${N3}[0] + vmov $A1xB,$A2xB + vmlal.u32 $A7xB,$Ni,${N3}[1] + vmov $A2xB,$A3xB + vmov $A3xB,$A4xB + vshr.u64 $temp,$temp,#16 + vmov $A4xB,$A5xB + vmov $A5xB,$A6xB + vadd.u64 $temp,$temp,`&Dhi("$Temp")` + vmov $A6xB,$A7xB + veor $A7xB,$A7xB + vshr.u64 $temp,$temp,#16 + + bne .LNEON_outer8 + + vadd.u64 `&Dlo("$A0xB")`,`&Dlo("$A0xB")`,$temp + mov $toutptr,sp + vshr.u64 $temp,`&Dlo("$A0xB")`,#16 + mov $inner,$num + vadd.u64 `&Dhi("$A0xB")`,`&Dhi("$A0xB")`,$temp + add $tinptr,sp,#16 + vshr.u64 $temp,`&Dhi("$A0xB")`,#16 + vzip.16 `&Dlo("$A0xB")`,`&Dhi("$A0xB")` + + b .LNEON_tail2 + +.align 4 +.LNEON_1st: + vmlal.u32 $A0xB,$Ni,${N0}[0] + vld1.32 {$A0-$A3}, [$aptr]! + vmlal.u32 $A1xB,$Ni,${N0}[1] + subs $inner,$inner,#8 + vmlal.u32 $A2xB,$Ni,${N1}[0] + vmlal.u32 $A3xB,$Ni,${N1}[1] + + vmlal.u32 $A4xB,$Ni,${N2}[0] + vld1.32 {$N0-$N1}, [$nptr]! + vmlal.u32 $A5xB,$Ni,${N2}[1] + vst1.64 {$A0xB-$A1xB}, [$toutptr,:256]! + vmlal.u32 $A6xB,$Ni,${N3}[0] + vmlal.u32 $A7xB,$Ni,${N3}[1] + vst1.64 {$A2xB-$A3xB}, [$toutptr,:256]! + + vmull.u32 $A0xB,$Bi,${A0}[0] + vld1.32 {$N2-$N3}, [$nptr]! + vmull.u32 $A1xB,$Bi,${A0}[1] + vst1.64 {$A4xB-$A5xB}, [$toutptr,:256]! + vmull.u32 $A2xB,$Bi,${A1}[0] + vmull.u32 $A3xB,$Bi,${A1}[1] + vst1.64 {$A6xB-$A7xB}, [$toutptr,:256]! + + vmull.u32 $A4xB,$Bi,${A2}[0] + vmull.u32 $A5xB,$Bi,${A2}[1] + vmull.u32 $A6xB,$Bi,${A3}[0] + vmull.u32 $A7xB,$Bi,${A3}[1] + + bne .LNEON_1st + + vmlal.u32 $A0xB,$Ni,${N0}[0] + add $tinptr,sp,#16 + vmlal.u32 $A1xB,$Ni,${N0}[1] + sub $aptr,$aptr,$num,lsl#2 @ rewind $aptr + vmlal.u32 $A2xB,$Ni,${N1}[0] + vld1.64 {$Temp}, [sp,:128] + vmlal.u32 $A3xB,$Ni,${N1}[1] + sub $outer,$num,#1 + + vmlal.u32 $A4xB,$Ni,${N2}[0] + vst1.64 {$A0xB-$A1xB}, [$toutptr,:256]! + vmlal.u32 $A5xB,$Ni,${N2}[1] + vshr.u64 $temp,$temp,#16 + vld1.64 {$A0xB}, [$tinptr, :128]! + vmlal.u32 $A6xB,$Ni,${N3}[0] + vst1.64 {$A2xB-$A3xB}, [$toutptr,:256]! + vmlal.u32 $A7xB,$Ni,${N3}[1] + + vst1.64 {$A4xB-$A5xB}, [$toutptr,:256]! + vadd.u64 $temp,$temp,`&Dhi("$Temp")` + veor $Z,$Z,$Z + vst1.64 {$A6xB-$A7xB}, [$toutptr,:256]! + vld1.64 {$A1xB-$A2xB}, [$tinptr, :256]! + vst1.64 {$Z}, [$toutptr,:128] + vshr.u64 $temp,$temp,#16 + + b .LNEON_outer + +.align 4 +.LNEON_outer: + vld1.32 {${Bi}[0]}, [$bptr,:32]! + sub $nptr,$nptr,$num,lsl#2 @ rewind $nptr + vld1.32 {$A0-$A3}, [$aptr]! + veor $zero,$zero,$zero + mov $toutptr,sp + vzip.16 $Bi,$zero + sub $inner,$num,#8 + vadd.u64 `&Dlo("$A0xB")`,`&Dlo("$A0xB")`,$temp + + vmlal.u32 $A0xB,$Bi,${A0}[0] + vld1.64 {$A3xB-$A4xB},[$tinptr,:256]! + vmlal.u32 $A1xB,$Bi,${A0}[1] + vmlal.u32 $A2xB,$Bi,${A1}[0] + vld1.64 {$A5xB-$A6xB},[$tinptr,:256]! + vmlal.u32 $A3xB,$Bi,${A1}[1] + + vshl.i64 $temp,`&Dhi("$A0xB")`,#16 + veor $zero,$zero,$zero + vadd.u64 $temp,$temp,`&Dlo("$A0xB")` + vld1.64 {$A7xB},[$tinptr,:128]! + vmul.u32 $Ni,$temp,$M0 + + vmlal.u32 $A4xB,$Bi,${A2}[0] + vld1.32 {$N0-$N3}, [$nptr]! + vmlal.u32 $A5xB,$Bi,${A2}[1] + vmlal.u32 $A6xB,$Bi,${A3}[0] + vzip.16 $Ni,$zero + vmlal.u32 $A7xB,$Bi,${A3}[1] + +.LNEON_inner: + vmlal.u32 $A0xB,$Ni,${N0}[0] + vld1.32 {$A0-$A3}, [$aptr]! + vmlal.u32 $A1xB,$Ni,${N0}[1] + subs $inner,$inner,#8 + vmlal.u32 $A2xB,$Ni,${N1}[0] + vmlal.u32 $A3xB,$Ni,${N1}[1] + vst1.64 {$A0xB-$A1xB}, [$toutptr,:256]! + + vmlal.u32 $A4xB,$Ni,${N2}[0] + vld1.64 {$A0xB}, [$tinptr, :128]! + vmlal.u32 $A5xB,$Ni,${N2}[1] + vst1.64 {$A2xB-$A3xB}, [$toutptr,:256]! + vmlal.u32 $A6xB,$Ni,${N3}[0] + vld1.64 {$A1xB-$A2xB}, [$tinptr, :256]! + vmlal.u32 $A7xB,$Ni,${N3}[1] + vst1.64 {$A4xB-$A5xB}, [$toutptr,:256]! + + vmlal.u32 $A0xB,$Bi,${A0}[0] + vld1.64 {$A3xB-$A4xB}, [$tinptr, :256]! + vmlal.u32 $A1xB,$Bi,${A0}[1] + vst1.64 {$A6xB-$A7xB}, [$toutptr,:256]! + vmlal.u32 $A2xB,$Bi,${A1}[0] + vld1.64 {$A5xB-$A6xB}, [$tinptr, :256]! + vmlal.u32 $A3xB,$Bi,${A1}[1] + vld1.32 {$N0-$N3}, [$nptr]! + + vmlal.u32 $A4xB,$Bi,${A2}[0] + vld1.64 {$A7xB}, [$tinptr, :128]! + vmlal.u32 $A5xB,$Bi,${A2}[1] + vmlal.u32 $A6xB,$Bi,${A3}[0] + vmlal.u32 $A7xB,$Bi,${A3}[1] + + bne .LNEON_inner + + vmlal.u32 $A0xB,$Ni,${N0}[0] + add $tinptr,sp,#16 + vmlal.u32 $A1xB,$Ni,${N0}[1] + sub $aptr,$aptr,$num,lsl#2 @ rewind $aptr + vmlal.u32 $A2xB,$Ni,${N1}[0] + vld1.64 {$Temp}, [sp,:128] + vmlal.u32 $A3xB,$Ni,${N1}[1] + subs $outer,$outer,#1 + + vmlal.u32 $A4xB,$Ni,${N2}[0] + vst1.64 {$A0xB-$A1xB}, [$toutptr,:256]! + vmlal.u32 $A5xB,$Ni,${N2}[1] + vld1.64 {$A0xB}, [$tinptr, :128]! + vshr.u64 $temp,$temp,#16 + vst1.64 {$A2xB-$A3xB}, [$toutptr,:256]! + vmlal.u32 $A6xB,$Ni,${N3}[0] + vld1.64 {$A1xB-$A2xB}, [$tinptr, :256]! + vmlal.u32 $A7xB,$Ni,${N3}[1] + + vst1.64 {$A4xB-$A5xB}, [$toutptr,:256]! + vadd.u64 $temp,$temp,`&Dhi("$Temp")` + vst1.64 {$A6xB-$A7xB}, [$toutptr,:256]! + vshr.u64 $temp,$temp,#16 + + bne .LNEON_outer + + mov $toutptr,sp + mov $inner,$num + +.LNEON_tail: + vadd.u64 `&Dlo("$A0xB")`,`&Dlo("$A0xB")`,$temp + vld1.64 {$A3xB-$A4xB}, [$tinptr, :256]! + vshr.u64 $temp,`&Dlo("$A0xB")`,#16 + vadd.u64 `&Dhi("$A0xB")`,`&Dhi("$A0xB")`,$temp + vld1.64 {$A5xB-$A6xB}, [$tinptr, :256]! + vshr.u64 $temp,`&Dhi("$A0xB")`,#16 + vld1.64 {$A7xB}, [$tinptr, :128]! + vzip.16 `&Dlo("$A0xB")`,`&Dhi("$A0xB")` + +.LNEON_tail2: + vadd.u64 `&Dlo("$A1xB")`,`&Dlo("$A1xB")`,$temp + vst1.32 {`&Dlo("$A0xB")`[0]}, [$toutptr, :32]! + vshr.u64 $temp,`&Dlo("$A1xB")`,#16 + vadd.u64 `&Dhi("$A1xB")`,`&Dhi("$A1xB")`,$temp + vshr.u64 $temp,`&Dhi("$A1xB")`,#16 + vzip.16 `&Dlo("$A1xB")`,`&Dhi("$A1xB")` + + vadd.u64 `&Dlo("$A2xB")`,`&Dlo("$A2xB")`,$temp + vst1.32 {`&Dlo("$A1xB")`[0]}, [$toutptr, :32]! + vshr.u64 $temp,`&Dlo("$A2xB")`,#16 + vadd.u64 `&Dhi("$A2xB")`,`&Dhi("$A2xB")`,$temp + vshr.u64 $temp,`&Dhi("$A2xB")`,#16 + vzip.16 `&Dlo("$A2xB")`,`&Dhi("$A2xB")` + + vadd.u64 `&Dlo("$A3xB")`,`&Dlo("$A3xB")`,$temp + vst1.32 {`&Dlo("$A2xB")`[0]}, [$toutptr, :32]! + vshr.u64 $temp,`&Dlo("$A3xB")`,#16 + vadd.u64 `&Dhi("$A3xB")`,`&Dhi("$A3xB")`,$temp + vshr.u64 $temp,`&Dhi("$A3xB")`,#16 + vzip.16 `&Dlo("$A3xB")`,`&Dhi("$A3xB")` + + vadd.u64 `&Dlo("$A4xB")`,`&Dlo("$A4xB")`,$temp + vst1.32 {`&Dlo("$A3xB")`[0]}, [$toutptr, :32]! + vshr.u64 $temp,`&Dlo("$A4xB")`,#16 + vadd.u64 `&Dhi("$A4xB")`,`&Dhi("$A4xB")`,$temp + vshr.u64 $temp,`&Dhi("$A4xB")`,#16 + vzip.16 `&Dlo("$A4xB")`,`&Dhi("$A4xB")` + + vadd.u64 `&Dlo("$A5xB")`,`&Dlo("$A5xB")`,$temp + vst1.32 {`&Dlo("$A4xB")`[0]}, [$toutptr, :32]! + vshr.u64 $temp,`&Dlo("$A5xB")`,#16 + vadd.u64 `&Dhi("$A5xB")`,`&Dhi("$A5xB")`,$temp + vshr.u64 $temp,`&Dhi("$A5xB")`,#16 + vzip.16 `&Dlo("$A5xB")`,`&Dhi("$A5xB")` + + vadd.u64 `&Dlo("$A6xB")`,`&Dlo("$A6xB")`,$temp + vst1.32 {`&Dlo("$A5xB")`[0]}, [$toutptr, :32]! + vshr.u64 $temp,`&Dlo("$A6xB")`,#16 + vadd.u64 `&Dhi("$A6xB")`,`&Dhi("$A6xB")`,$temp + vld1.64 {$A0xB}, [$tinptr, :128]! + vshr.u64 $temp,`&Dhi("$A6xB")`,#16 + vzip.16 `&Dlo("$A6xB")`,`&Dhi("$A6xB")` + + vadd.u64 `&Dlo("$A7xB")`,`&Dlo("$A7xB")`,$temp + vst1.32 {`&Dlo("$A6xB")`[0]}, [$toutptr, :32]! + vshr.u64 $temp,`&Dlo("$A7xB")`,#16 + vadd.u64 `&Dhi("$A7xB")`,`&Dhi("$A7xB")`,$temp + vld1.64 {$A1xB-$A2xB}, [$tinptr, :256]! + vshr.u64 $temp,`&Dhi("$A7xB")`,#16 + vzip.16 `&Dlo("$A7xB")`,`&Dhi("$A7xB")` + subs $inner,$inner,#8 + vst1.32 {`&Dlo("$A7xB")`[0]}, [$toutptr, :32]! + + bne .LNEON_tail + + vst1.32 {${temp}[0]}, [$toutptr, :32] @ top-most bit + sub $nptr,$nptr,$num,lsl#2 @ rewind $nptr + subs $aptr,sp,#0 @ clear carry flag + add $bptr,sp,$num,lsl#2 + +.LNEON_sub: + ldmia $aptr!, {r4-r7} + ldmia $nptr!, {r8-r11} + sbcs r8, r4,r8 + sbcs r9, r5,r9 + sbcs r10,r6,r10 + sbcs r11,r7,r11 + teq $aptr,$bptr @ preserves carry + stmia $rptr!, {r8-r11} + bne .LNEON_sub + + ldr r10, [$aptr] @ load top-most bit + veor q0,q0,q0 + sub r11,$bptr,sp @ this is num*4 + veor q1,q1,q1 + mov $aptr,sp + sub $rptr,$rptr,r11 @ rewind $rptr + mov $nptr,$bptr @ second 3/4th of frame + sbcs r10,r10,#0 @ result is carry flag + +.LNEON_copy_n_zap: + ldmia $aptr!, {r4-r7} + ldmia $rptr, {r8-r11} + movcc r8, r4 + vst1.64 {q0-q1}, [$nptr,:256]! @ wipe + movcc r9, r5 + movcc r10,r6 + vst1.64 {q0-q1}, [$nptr,:256]! @ wipe + movcc r11,r7 + ldmia $aptr, {r4-r7} + stmia $rptr!, {r8-r11} + sub $aptr,$aptr,#16 + ldmia $rptr, {r8-r11} + movcc r8, r4 + vst1.64 {q0-q1}, [$aptr,:256]! @ wipe + movcc r9, r5 + movcc r10,r6 + vst1.64 {q0-q1}, [$nptr,:256]! @ wipe + movcc r11,r7 + teq $aptr,$bptr @ preserves carry + stmia $rptr!, {r8-r11} + bne .LNEON_copy_n_zap + + sub sp,ip,#96 + vldmia sp!,{d8-d15} + ldmia sp!,{r4-r11} + ret @ bx lr +.size bn_mul8x_mont_neon,.-bn_mul8x_mont_neon +#endif +___ +} +$code.=<<___; +.asciz "Montgomery multiplication for ARMv4/NEON, CRYPTOGAMS by " .align 2 +#if __ARM_ARCH__>=7 +.comm OPENSSL_armcap_P,4,4 +#endif ___ +$code =~ s/\`([^\`]*)\`/eval $1/gem; $code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4 +$code =~ s/\bret\b/bx lr/gm; print $code; close STDOUT; diff --git a/crypto/evp/e_aes.c b/crypto/evp/e_aes.c index c7869b6..ad0f7a4 100644 --- a/crypto/evp/e_aes.c +++ b/crypto/evp/e_aes.c @@ -62,7 +62,7 @@ typedef struct { - AES_KEY ks; + union { double align; AES_KEY ks; } ks; block128_f block; union { cbc128_f cbc; @@ -72,7 +72,7 @@ typedef struct typedef struct { - AES_KEY ks; /* AES key schedule to use */ + union { double align; AES_KEY ks; } ks; /* AES key schedule to use */ int key_set; /* Set if key initialised */ int iv_set; /* Set if an iv is set */ GCM128_CONTEXT gcm; @@ -86,7 +86,7 @@ typedef struct typedef struct { - AES_KEY ks1, ks2; /* AES key schedules to use */ + union { double align; AES_KEY ks; } ks1, ks2; /* AES key schedules to use */ XTS128_CONTEXT xts; void (*stream)(const unsigned char *in, unsigned char *out, size_t length, @@ -96,7 +96,7 @@ typedef struct typedef struct { - AES_KEY ks; /* AES key schedule to use */ + union { double align; AES_KEY ks; } ks; /* AES key schedule to use */ int key_set; /* Set if key initialised */ int iv_set; /* Set if an iv is set */ int tag_set; /* Set if tag is valid */ @@ -160,7 +160,7 @@ void AES_xts_decrypt(const char *inp,char *out,size_t len, defined(_M_AMD64) || defined(_M_X64) || \ defined(__INTEL__) ) -extern unsigned int OPENSSL_ia32cap_P[2]; +extern unsigned int OPENSSL_ia32cap_P[]; #ifdef VPAES_ASM #define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32))) @@ -310,7 +310,7 @@ static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, return 1; if (key) { - aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks); + aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks); CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f)aesni_encrypt); gctx->ctr = (ctr128_f)aesni_ctr32_encrypt_blocks; @@ -355,19 +355,19 @@ static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, /* key_len is two AES keys */ if (enc) { - aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1); + aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); xctx->xts.block1 = (block128_f)aesni_encrypt; xctx->stream = aesni_xts_encrypt; } else { - aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1); + aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); xctx->xts.block1 = (block128_f)aesni_decrypt; xctx->stream = aesni_xts_decrypt; } aesni_set_encrypt_key(key + ctx->key_len/2, - ctx->key_len * 4, &xctx->ks2); + ctx->key_len * 4, &xctx->ks2.ks); xctx->xts.block2 = (block128_f)aesni_encrypt; xctx->xts.key1 = &xctx->ks1; @@ -394,7 +394,7 @@ static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, return 1; if (key) { - aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks); + aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks); CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, &cctx->ks, (block128_f)aesni_encrypt); cctx->str = enc?(ccm128_f)aesni_ccm64_encrypt_blocks : @@ -484,6 +484,38 @@ const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \ { return &aes_##keylen##_##mode; } #endif +#if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__)) +#include "arm_arch.h" +#if __ARM_ARCH__>=7 +# if defined(BSAES_ASM) +# define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON) +# endif +# define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES) +# define HWAES_set_encrypt_key aes_v8_set_encrypt_key +# define HWAES_set_decrypt_key aes_v8_set_decrypt_key +# define HWAES_encrypt aes_v8_encrypt +# define HWAES_decrypt aes_v8_decrypt +# define HWAES_cbc_encrypt aes_v8_cbc_encrypt +# define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks +#endif +#endif + +#if defined(HWAES_CAPABLE) +int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits, + AES_KEY *key); +int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits, + AES_KEY *key); +void HWAES_encrypt(const unsigned char *in, unsigned char *out, + const AES_KEY *key); +void HWAES_decrypt(const unsigned char *in, unsigned char *out, + const AES_KEY *key); +void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out, + size_t length, const AES_KEY *key, + unsigned char *ivec, const int enc); +void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out, + size_t len, const AES_KEY *key, const unsigned char ivec[16]); +#endif + #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \ BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \ BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \ @@ -502,10 +534,23 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, mode = ctx->cipher->flags & EVP_CIPH_MODE; if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE) && !enc) +#ifdef HWAES_CAPABLE + if (HWAES_CAPABLE) + { + ret = HWAES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks); + dat->block = (block128_f)HWAES_decrypt; + dat->stream.cbc = NULL; +#ifdef HWAES_cbc_encrypt + if (mode==EVP_CIPH_CBC_MODE) + dat->stream.cbc = (cbc128_f)HWAES_cbc_encrypt; +#endif + } + else +#endif #ifdef BSAES_CAPABLE if (BSAES_CAPABLE && mode==EVP_CIPH_CBC_MODE) { - ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks); + ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks); dat->block = (block128_f)AES_decrypt; dat->stream.cbc = (cbc128_f)bsaes_cbc_encrypt; } @@ -514,7 +559,7 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, #ifdef VPAES_CAPABLE if (VPAES_CAPABLE) { - ret = vpaes_set_decrypt_key(key,ctx->key_len*8,&dat->ks); + ret = vpaes_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks); dat->block = (block128_f)vpaes_decrypt; dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ? (cbc128_f)vpaes_cbc_encrypt : @@ -523,17 +568,37 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, else #endif { - ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks); + ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks); dat->block = (block128_f)AES_decrypt; dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ? (cbc128_f)AES_cbc_encrypt : NULL; } else +#ifdef HWAES_CAPABLE + if (HWAES_CAPABLE) + { + ret = HWAES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks); + dat->block = (block128_f)HWAES_encrypt; + dat->stream.cbc = NULL; +#ifdef HWAES_cbc_encrypt + if (mode==EVP_CIPH_CBC_MODE) + dat->stream.cbc = (cbc128_f)HWAES_cbc_encrypt; + else +#endif +#ifdef HWAES_ctr32_encrypt_blocks + if (mode==EVP_CIPH_CTR_MODE) + dat->stream.ctr = (ctr128_f)HWAES_ctr32_encrypt_blocks; + else +#endif + (void)0; /* terminate potentially open 'else' */ + } + else +#endif #ifdef BSAES_CAPABLE if (BSAES_CAPABLE && mode==EVP_CIPH_CTR_MODE) { - ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks); + ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks); dat->block = (block128_f)AES_encrypt; dat->stream.ctr = (ctr128_f)bsaes_ctr32_encrypt_blocks; } @@ -542,7 +607,7 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, #ifdef VPAES_CAPABLE if (VPAES_CAPABLE) { - ret = vpaes_set_encrypt_key(key,ctx->key_len*8,&dat->ks); + ret = vpaes_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks); dat->block = (block128_f)vpaes_encrypt; dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ? (cbc128_f)vpaes_cbc_encrypt : @@ -551,7 +616,7 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, else #endif { - ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks); + ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks); dat->block = (block128_f)AES_encrypt; dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ? (cbc128_f)AES_cbc_encrypt : @@ -822,10 +887,25 @@ static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, return 1; if (key) { do { +#ifdef HWAES_CAPABLE + if (HWAES_CAPABLE) + { + HWAES_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks); + CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks, + (block128_f)HWAES_encrypt); +#ifdef HWAES_ctr32_encrypt_blocks + gctx->ctr = (ctr128_f)HWAES_ctr32_encrypt_blocks; +#else + gctx->ctr = NULL; +#endif + break; + } + else +#endif #ifdef BSAES_CAPABLE if (BSAES_CAPABLE) { - AES_set_encrypt_key(key,ctx->key_len*8,&gctx->ks); + AES_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks); CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks, (block128_f)AES_encrypt); gctx->ctr = (ctr128_f)bsaes_ctr32_encrypt_blocks; @@ -836,7 +916,7 @@ static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, #ifdef VPAES_CAPABLE if (VPAES_CAPABLE) { - vpaes_set_encrypt_key(key,ctx->key_len*8,&gctx->ks); + vpaes_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks); CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks, (block128_f)vpaes_encrypt); gctx->ctr = NULL; @@ -846,7 +926,7 @@ static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, #endif (void)0; /* terminate potentially open 'else' */ - AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks); + AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks); CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f)AES_encrypt); #ifdef AES_CTR_ASM gctx->ctr = (ctr128_f)AES_ctr32_encrypt; @@ -1067,6 +1147,29 @@ static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, xctx->stream = NULL; #endif /* key_len is two AES keys */ +#ifdef HWAES_CAPABLE + if (HWAES_CAPABLE) + { + if (enc) + { + HWAES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); + xctx->xts.block1 = (block128_f)HWAES_encrypt; + } + else + { + HWAES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); + xctx->xts.block1 = (block128_f)HWAES_decrypt; + } + + HWAES_set_encrypt_key(key + ctx->key_len/2, + ctx->key_len * 4, &xctx->ks2.ks); + xctx->xts.block2 = (block128_f)HWAES_encrypt; + + xctx->xts.key1 = &xctx->ks1; + break; + } + else +#endif #ifdef BSAES_CAPABLE if (BSAES_CAPABLE) xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt; @@ -1077,17 +1180,17 @@ static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, { if (enc) { - vpaes_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1); + vpaes_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); xctx->xts.block1 = (block128_f)vpaes_encrypt; } else { - vpaes_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1); + vpaes_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); xctx->xts.block1 = (block128_f)vpaes_decrypt; } vpaes_set_encrypt_key(key + ctx->key_len/2, - ctx->key_len * 4, &xctx->ks2); + ctx->key_len * 4, &xctx->ks2.ks); xctx->xts.block2 = (block128_f)vpaes_encrypt; xctx->xts.key1 = &xctx->ks1; @@ -1099,17 +1202,17 @@ static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, if (enc) { - AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1); + AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); xctx->xts.block1 = (block128_f)AES_encrypt; } else { - AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1); + AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); xctx->xts.block1 = (block128_f)AES_decrypt; } AES_set_encrypt_key(key + ctx->key_len/2, - ctx->key_len * 4, &xctx->ks2); + ctx->key_len * 4, &xctx->ks2.ks); xctx->xts.block2 = (block128_f)AES_encrypt; xctx->xts.key1 = &xctx->ks1; @@ -1217,10 +1320,23 @@ static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, return 1; if (key) do { +#ifdef HWAES_CAPABLE + if (HWAES_CAPABLE) + { + HWAES_set_encrypt_key(key,ctx->key_len*8,&cctx->ks.ks); + + CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, + &cctx->ks, (block128_f)HWAES_encrypt); + cctx->str = NULL; + cctx->key_set = 1; + break; + } + else +#endif #ifdef VPAES_CAPABLE if (VPAES_CAPABLE) { - vpaes_set_encrypt_key(key, ctx->key_len*8, &cctx->ks); + vpaes_set_encrypt_key(key, ctx->key_len*8, &cctx->ks.ks); CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, &cctx->ks, (block128_f)vpaes_encrypt); cctx->str = NULL; @@ -1228,7 +1344,7 @@ static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, break; } #endif - AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks); + AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks); CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, &cctx->ks, (block128_f)AES_encrypt); cctx->str = NULL; diff --git a/crypto/modes/Makefile b/crypto/modes/Makefile index 3d8bafd..9bcfa0e 100644 --- a/crypto/modes/Makefile +++ b/crypto/modes/Makefile @@ -56,14 +56,16 @@ ghash-alpha.s: asm/ghash-alpha.pl (preproc=/tmp/$$$$.$@; trap "rm $$preproc" INT; \ $(PERL) asm/ghash-alpha.pl > $$preproc && \ $(CC) -E $$preproc > $@ && rm $$preproc) - ghash-parisc.s: asm/ghash-parisc.pl $(PERL) asm/ghash-parisc.pl $(PERLASM_SCHEME) $@ +ghashv8-armx.S: asm/ghashv8-armx.pl + $(PERL) asm/ghashv8-armx.pl $(PERLASM_SCHEME) $@ # GNU make "catch all" ghash-%.S: asm/ghash-%.pl; $(PERL) $< $(PERLASM_SCHEME) $@ ghash-armv4.o: ghash-armv4.S +ghashv8-armx.o: ghashv8-armx.S files: $(PERL) $(TOP)/util/files.pl Makefile >> $(TOP)/MINFO diff --git a/crypto/modes/asm/ghash-armv4.pl b/crypto/modes/asm/ghash-armv4.pl index d91586e..0023bf9 100644 --- a/crypto/modes/asm/ghash-armv4.pl +++ b/crypto/modes/asm/ghash-armv4.pl @@ -35,6 +35,20 @@ # Add NEON implementation featuring polynomial multiplication, i.e. no # lookup tables involved. On Cortex A8 it was measured to process one # byte in 15 cycles or 55% faster than integer-only code. +# +# April 2014 +# +# Switch to multiplication algorithm suggested in paper referred +# below and combine it with reduction algorithm from x86 module. +# Performance improvement over previous version varies from 65% on +# Snapdragon S4 to 110% on Cortex A9. In absolute terms Cortex A8 +# processes one byte in 8.45 cycles, A9 - in 10.2, Snapdragon S4 - +# in 9.33. +# +# Câmara, D.; Gouvęa, C. P. L.; López, J. & Dahab, R.: Fast Software +# Polynomial Multiplication on ARM Processors using the NEON Engine. +# +# http://conradoplg.cryptoland.net/files/2010/12/mocrysen13.pdf # ==================================================================== # Note about "528B" variant. In ARM case it makes lesser sense to @@ -303,117 +317,160 @@ $code.=<<___; .size gcm_gmult_4bit,.-gcm_gmult_4bit ___ { -my $cnt=$Htbl; # $Htbl is used once in the very beginning - -my ($Hhi, $Hlo, $Zo, $T, $xi, $mod) = map("d$_",(0..7)); -my ($Qhi, $Qlo, $Z, $R, $zero, $Qpost, $IN) = map("q$_",(8..15)); - -# Z:Zo keeps 128-bit result shifted by 1 to the right, with bottom bit -# in Zo. Or should I say "top bit", because GHASH is specified in -# reverse bit order? Otherwise straightforward 128-bt H by one input -# byte multiplication and modulo-reduction, times 16. +my ($Xl,$Xm,$Xh,$IN)=map("q$_",(0..3)); +my ($t0,$t1,$t2,$t3)=map("q$_",(8..12)); +my ($Hlo,$Hhi,$Hhl,$k48,$k32,$k16)=map("d$_",(26..31)); -sub Dlo() { shift=~m|q([1]?[0-9])|?"d".($1*2):""; } -sub Dhi() { shift=~m|q([1]?[0-9])|?"d".($1*2+1):""; } -sub Q() { shift=~m|d([1-3]?[02468])|?"q".($1/2):""; } +sub clmul64x64 { +my ($r,$a,$b)=@_; +$code.=<<___; + vext.8 $t0#lo, $a, $a, #1 @ A1 + vmull.p8 $t0, $t0#lo, $b @ F = A1*B + vext.8 $r#lo, $b, $b, #1 @ B1 + vmull.p8 $r, $a, $r#lo @ E = A*B1 + vext.8 $t1#lo, $a, $a, #2 @ A2 + vmull.p8 $t1, $t1#lo, $b @ H = A2*B + vext.8 $t3#lo, $b, $b, #2 @ B2 + vmull.p8 $t3, $a, $t3#lo @ G = A*B2 + vext.8 $t2#lo, $a, $a, #3 @ A3 + veor $t0, $t0, $r @ L = E + F + vmull.p8 $t2, $t2#lo, $b @ J = A3*B + vext.8 $r#lo, $b, $b, #3 @ B3 + veor $t1, $t1, $t3 @ M = G + H + vmull.p8 $r, $a, $r#lo @ I = A*B3 + veor $t0#lo, $t0#lo, $t0#hi @ t0 = (L) (P0 + P1) << 8 + vand $t0#hi, $t0#hi, $k48 + vext.8 $t3#lo, $b, $b, #4 @ B4 + veor $t1#lo, $t1#lo, $t1#hi @ t1 = (M) (P2 + P3) << 16 + vand $t1#hi, $t1#hi, $k32 + vmull.p8 $t3, $a, $t3#lo @ K = A*B4 + veor $t2, $t2, $r @ N = I + J + veor $t0#lo, $t0#lo, $t0#hi + veor $t1#lo, $t1#lo, $t1#hi + veor $t2#lo, $t2#lo, $t2#hi @ t2 = (N) (P4 + P5) << 24 + vand $t2#hi, $t2#hi, $k16 + vext.8 $t0, $t0, $t0, #15 + veor $t3#lo, $t3#lo, $t3#hi @ t3 = (K) (P6 + P7) << 32 + vmov.i64 $t3#hi, #0 + vext.8 $t1, $t1, $t1, #14 + veor $t2#lo, $t2#lo, $t2#hi + vmull.p8 $r, $a, $b @ D = A*B + vext.8 $t3, $t3, $t3, #12 + vext.8 $t2, $t2, $t2, #13 + veor $t0, $t0, $t1 + veor $t2, $t2, $t3 + veor $r, $r, $t0 + veor $r, $r, $t2 +___ +} $code.=<<___; #if __ARM_ARCH__>=7 .fpu neon +.global gcm_init_neon +.type gcm_init_neon,%function +.align 4 +gcm_init_neon: + vld1.64 $IN#hi,[r1,:64]! @ load H + vmov.i8 $t0,#0xe1 + vld1.64 $IN#lo,[r1,:64] + vshl.i64 $t0#hi,#57 + vshr.u64 $t0#lo,#63 @ t0=0xc2....01 + vdup.8 $t1,$IN#hi[7] + vshr.u64 $Hlo,$IN#lo,#63 + vshr.s8 $t1,#7 @ broadcast carry bit + vshl.i64 $IN,$IN,#1 + vand $t0,$t0,$t1 + vorr $IN#hi,$Hlo @ H<<<=1 + veor $IN,$IN,$t0 @ twisted H + vstmia r0,{$IN} + + ret @ bx lr +.size gcm_init_neon,.-gcm_init_neon + .global gcm_gmult_neon .type gcm_gmult_neon,%function .align 4 gcm_gmult_neon: - sub $Htbl,#16 @ point at H in GCM128_CTX - vld1.64 `&Dhi("$IN")`,[$Xi,:64]!@ load Xi - vmov.i32 $mod,#0xe1 @ our irreducible polynomial - vld1.64 `&Dlo("$IN")`,[$Xi,:64]! - vshr.u64 $mod,#32 - vldmia $Htbl,{$Hhi-$Hlo} @ load H - veor $zero,$zero + vld1.64 $IN#hi,[$Xi,:64]! @ load Xi + vld1.64 $IN#lo,[$Xi,:64]! + vmov.i64 $k48,#0x0000ffffffffffff + vldmia $Htbl,{$Hlo-$Hhi} @ load twisted H + vmov.i64 $k32,#0x00000000ffffffff #ifdef __ARMEL__ vrev64.8 $IN,$IN #endif - veor $Qpost,$Qpost - veor $R,$R - mov $cnt,#16 - veor $Z,$Z + vmov.i64 $k16,#0x000000000000ffff + veor $Hhl,$Hlo,$Hhi @ Karatsuba pre-processing mov $len,#16 - veor $Zo,$Zo - vdup.8 $xi,`&Dlo("$IN")`[0] @ broadcast lowest byte - b .Linner_neon + b .Lgmult_neon .size gcm_gmult_neon,.-gcm_gmult_neon .global gcm_ghash_neon .type gcm_ghash_neon,%function .align 4 gcm_ghash_neon: - vld1.64 `&Dhi("$Z")`,[$Xi,:64]! @ load Xi - vmov.i32 $mod,#0xe1 @ our irreducible polynomial - vld1.64 `&Dlo("$Z")`,[$Xi,:64]! - vshr.u64 $mod,#32 - vldmia $Xi,{$Hhi-$Hlo} @ load H - veor $zero,$zero - nop + vld1.64 $Xl#hi,[$Xi,:64]! @ load Xi + vld1.64 $Xl#lo,[$Xi,:64]! + vmov.i64 $k48,#0x0000ffffffffffff + vldmia $Htbl,{$Hlo-$Hhi} @ load twisted H + vmov.i64 $k32,#0x00000000ffffffff #ifdef __ARMEL__ - vrev64.8 $Z,$Z + vrev64.8 $Xl,$Xl #endif -.Louter_neon: - vld1.64 `&Dhi($IN)`,[$inp]! @ load inp - veor $Qpost,$Qpost - vld1.64 `&Dlo($IN)`,[$inp]! - veor $R,$R - mov $cnt,#16 + vmov.i64 $k16,#0x000000000000ffff + veor $Hhl,$Hlo,$Hhi @ Karatsuba pre-processing + +.Loop_neon: + vld1.64 $IN#hi,[$inp]! @ load inp + vld1.64 $IN#lo,[$inp]! #ifdef __ARMEL__ vrev64.8 $IN,$IN #endif - veor $Zo,$Zo - veor $IN,$Z @ inp^=Xi - veor $Z,$Z - vdup.8 $xi,`&Dlo("$IN")`[0] @ broadcast lowest byte -.Linner_neon: - subs $cnt,$cnt,#1 - vmull.p8 $Qlo,$Hlo,$xi @ H.lo·Xi[i] - vmull.p8 $Qhi,$Hhi,$xi @ H.hi·Xi[i] - vext.8 $IN,$zero,#1 @ IN>>=8 - - veor $Z,$Qpost @ modulo-scheduled part - vshl.i64 `&Dlo("$R")`,#48 - vdup.8 $xi,`&Dlo("$IN")`[0] @ broadcast lowest byte - veor $T,`&Dlo("$Qlo")`,`&Dlo("$Z")` - - veor `&Dhi("$Z")`,`&Dlo("$R")` - vuzp.8 $Qlo,$Qhi - vsli.8 $Zo,$T,#1 @ compose the "carry" byte - vext.8 $Z,$zero,#1 @ Z>>=8 - - vmull.p8 $R,$Zo,$mod @ "carry"·0xe1 - vshr.u8 $Zo,$T,#7 @ save Z's bottom bit - vext.8 $Qpost,$Qlo,$zero,#1 @ Qlo>>=8 - veor $Z,$Qhi - bne .Linner_neon - - veor $Z,$Qpost @ modulo-scheduled artefact - vshl.i64 `&Dlo("$R")`,#48 - veor `&Dhi("$Z")`,`&Dlo("$R")` - - @ finalization, normalize Z:Zo - vand $Zo,$mod @ suffices to mask the bit - vshr.u64 `&Dhi(&Q("$Zo"))`,`&Dlo("$Z")`,#63 - vshl.i64 $Z,#1 + veor $IN,$Xl @ inp^=Xi +.Lgmult_neon: +___ + &clmul64x64 ($Xl,$Hlo,"$IN#lo"); # H.lo·Xi.lo +$code.=<<___; + veor $IN#lo,$IN#lo,$IN#hi @ Karatsuba pre-processing +___ + &clmul64x64 ($Xm,$Hhl,"$IN#lo"); # (H.lo+H.hi)·(Xi.lo+Xi.hi) + &clmul64x64 ($Xh,$Hhi,"$IN#hi"); # H.hi·Xi.hi +$code.=<<___; + veor $Xm,$Xm,$Xl @ Karatsuba post-processing + veor $Xm,$Xm,$Xh + veor $Xl#hi,$Xl#hi,$Xm#lo + veor $Xh#lo,$Xh#lo,$Xm#hi @ Xh|Xl - 256-bit result + + @ equivalent of reduction_avx from ghash-x86_64.pl + vshl.i64 $t1,$Xl,#57 @ 1st phase + vshl.i64 $t2,$Xl,#62 + veor $t2,$t2,$t1 @ + vshl.i64 $t1,$Xl,#63 + veor $t2, $t2, $t1 @ + veor $Xl#hi,$Xl#hi,$t2#lo @ + veor $Xh#lo,$Xh#lo,$t2#hi + + vshr.u64 $t2,$Xl,#1 @ 2nd phase + veor $Xh,$Xh,$Xl + veor $Xl,$Xl,$t2 @ + vshr.u64 $t2,$t2,#6 + vshr.u64 $Xl,$Xl,#1 @ + veor $Xl,$Xl,$Xh @ + veor $Xl,$Xl,$t2 @ + subs $len,#16 - vorr $Z,`&Q("$Zo")` @ Z=Z:Zo<<1 - bne .Louter_neon + bne .Loop_neon #ifdef __ARMEL__ - vrev64.8 $Z,$Z + vrev64.8 $Xl,$Xl #endif sub $Xi,#16 - vst1.64 `&Dhi("$Z")`,[$Xi,:64]! @ write out Xi - vst1.64 `&Dlo("$Z")`,[$Xi,:64] + vst1.64 $Xl#hi,[$Xi,:64]! @ write out Xi + vst1.64 $Xl#lo,[$Xi,:64] - bx lr + ret @ bx lr .size gcm_ghash_neon,.-gcm_ghash_neon #endif ___ @@ -423,7 +480,13 @@ $code.=<<___; .align 2 ___ -$code =~ s/\`([^\`]*)\`/eval $1/gem; -$code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4 -print $code; +foreach (split("\n",$code)) { + s/\`([^\`]*)\`/eval $1/geo; + + s/\bq([0-9]+)#(lo|hi)/sprintf "d%d",2*$1+($2 eq "hi")/geo or + s/\bret\b/bx lr/go or + s/\bbx\s+lr\b/.word\t0xe12fff1e/go; # make it possible to compile with -march=armv4 + + print $_,"\n"; +} close STDOUT; # enforce flush diff --git a/crypto/modes/asm/ghashv8-armx.pl b/crypto/modes/asm/ghashv8-armx.pl new file mode 100644 index 0000000..b24f3d7 --- /dev/null +++ b/crypto/modes/asm/ghashv8-armx.pl @@ -0,0 +1,240 @@ +#!/usr/bin/env perl +# +# ==================================================================== +# Written by Andy Polyakov for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# ==================================================================== +# +# GHASH for ARMv8 Crypto Extension, 64-bit polynomial multiplication. +# +# June 2014 +# +# Initial version was developed in tight cooperation with Ard +# Biesheuvel from bits-n-pieces from +# other assembly modules. Just like aesv8-armx.pl this module +# supports both AArch32 and AArch64 execution modes. +# +# Current performance in cycles per processed byte: +# +# PMULL[2] 32-bit NEON(*) +# Apple A7 1.76 5.62 +# Cortex-A5x n/a n/a +# +# (*) presented for reference/comparison purposes; + +$flavour = shift; +open STDOUT,">".shift; + +$Xi="x0"; # argument block +$Htbl="x1"; +$inp="x2"; +$len="x3"; + +$inc="x12"; + +{ +my ($Xl,$Xm,$Xh,$IN)=map("q$_",(0..3)); +my ($t0,$t1,$t2,$t3,$H,$Hhl)=map("q$_",(8..14)); + +$code=<<___; +#include "arm_arch.h" + +.text +___ +$code.=".arch armv8-a+crypto\n" if ($flavour =~ /64/); +$code.=".fpu neon\n.code 32\n" if ($flavour !~ /64/); + +$code.=<<___; +.global gcm_init_v8 +.type gcm_init_v8,%function +.align 4 +gcm_init_v8: + vld1.64 {$t1},[x1] @ load H + vmov.i8 $t0,#0xe1 + vext.8 $IN,$t1,$t1,#8 + vshl.i64 $t0,$t0,#57 + vshr.u64 $t2,$t0,#63 + vext.8 $t0,$t2,$t0,#8 @ t0=0xc2....01 + vdup.32 $t1,${t1}[1] + vshr.u64 $t3,$IN,#63 + vshr.s32 $t1,$t1,#31 @ broadcast carry bit + vand $t3,$t3,$t0 + vshl.i64 $IN,$IN,#1 + vext.8 $t3,$t3,$t3,#8 + vand $t0,$t0,$t1 + vorr $IN,$IN,$t3 @ H<<<=1 + veor $IN,$IN,$t0 @ twisted H + vst1.64 {$IN},[x0] + + ret +.size gcm_init_v8,.-gcm_init_v8 + +.global gcm_gmult_v8 +.type gcm_gmult_v8,%function +.align 4 +gcm_gmult_v8: + vld1.64 {$t1},[$Xi] @ load Xi + vmov.i8 $t3,#0xe1 + vld1.64 {$H},[$Htbl] @ load twisted H + vshl.u64 $t3,$t3,#57 +#ifndef __ARMEB__ + vrev64.8 $t1,$t1 +#endif + vext.8 $Hhl,$H,$H,#8 + mov $len,#0 + vext.8 $IN,$t1,$t1,#8 + mov $inc,#0 + veor $Hhl,$Hhl,$H @ Karatsuba pre-processing + mov $inp,$Xi + b .Lgmult_v8 +.size gcm_gmult_v8,.-gcm_gmult_v8 + +.global gcm_ghash_v8 +.type gcm_ghash_v8,%function +.align 4 +gcm_ghash_v8: + vld1.64 {$Xl},[$Xi] @ load [rotated] Xi + subs $len,$len,#16 + vmov.i8 $t3,#0xe1 + mov $inc,#16 + vld1.64 {$H},[$Htbl] @ load twisted H + cclr $inc,eq + vext.8 $Xl,$Xl,$Xl,#8 + vshl.u64 $t3,$t3,#57 + vld1.64 {$t1},[$inp],$inc @ load [rotated] inp + vext.8 $Hhl,$H,$H,#8 +#ifndef __ARMEB__ + vrev64.8 $Xl,$Xl + vrev64.8 $t1,$t1 +#endif + veor $Hhl,$Hhl,$H @ Karatsuba pre-processing + vext.8 $IN,$t1,$t1,#8 + b .Loop_v8 + +.align 4 +.Loop_v8: + vext.8 $t2,$Xl,$Xl,#8 + veor $IN,$IN,$Xl @ inp^=Xi + veor $t1,$t1,$t2 @ $t1 is rotated inp^Xi + +.Lgmult_v8: + vpmull.p64 $Xl,$H,$IN @ H.lo·Xi.lo + veor $t1,$t1,$IN @ Karatsuba pre-processing + vpmull2.p64 $Xh,$H,$IN @ H.hi·Xi.hi + subs $len,$len,#16 + vpmull.p64 $Xm,$Hhl,$t1 @ (H.lo+H.hi)·(Xi.lo+Xi.hi) + cclr $inc,eq + + vext.8 $t1,$Xl,$Xh,#8 @ Karatsuba post-processing + veor $t2,$Xl,$Xh + veor $Xm,$Xm,$t1 + vld1.64 {$t1},[$inp],$inc @ load [rotated] inp + veor $Xm,$Xm,$t2 + vpmull.p64 $t2,$Xl,$t3 @ 1st phase + + vmov $Xh#lo,$Xm#hi @ Xh|Xm - 256-bit result + vmov $Xm#hi,$Xl#lo @ Xm is rotated Xl +#ifndef __ARMEB__ + vrev64.8 $t1,$t1 +#endif + veor $Xl,$Xm,$t2 + vext.8 $IN,$t1,$t1,#8 + + vext.8 $t2,$Xl,$Xl,#8 @ 2nd phase + vpmull.p64 $Xl,$Xl,$t3 + veor $t2,$t2,$Xh + veor $Xl,$Xl,$t2 + b.hs .Loop_v8 + +#ifndef __ARMEB__ + vrev64.8 $Xl,$Xl +#endif + vext.8 $Xl,$Xl,$Xl,#8 + vst1.64 {$Xl},[$Xi] @ write out Xi + + ret +.size gcm_ghash_v8,.-gcm_ghash_v8 +___ +} +$code.=<<___; +.asciz "GHASH for ARMv8, CRYPTOGAMS by " +.align 2 +___ + +if ($flavour =~ /64/) { ######## 64-bit code + sub unvmov { + my $arg=shift; + + $arg =~ m/q([0-9]+)#(lo|hi),\s*q([0-9]+)#(lo|hi)/o && + sprintf "ins v%d.d[%d],v%d.d[%d]",$1,($2 eq "lo")?0:1,$3,($4 eq "lo")?0:1; + } + foreach(split("\n",$code)) { + s/cclr\s+([wx])([^,]+),\s*([a-z]+)/csel $1$2,$1zr,$1$2,$3/o or + s/vmov\.i8/movi/o or # fix up legacy mnemonics + s/vmov\s+(.*)/unvmov($1)/geo or + s/vext\.8/ext/o or + s/vshr\.s/sshr\.s/o or + s/vshr/ushr/o or + s/^(\s+)v/$1/o or # strip off v prefix + s/\bbx\s+lr\b/ret/o; + + s/\bq([0-9]+)\b/"v".($1<8?$1:$1+8).".16b"/geo; # old->new registers + s/@\s/\/\//o; # old->new style commentary + + # fix up remainig legacy suffixes + s/\.[ui]?8(\s)/$1/o; + s/\.[uis]?32//o and s/\.16b/\.4s/go; + m/\.p64/o and s/\.16b/\.1q/o; # 1st pmull argument + m/l\.p64/o and s/\.16b/\.1d/go; # 2nd and 3rd pmull arguments + s/\.[uisp]?64//o and s/\.16b/\.2d/go; + s/\.[42]([sd])\[([0-3])\]/\.$1\[$2\]/o; + + print $_,"\n"; + } +} else { ######## 32-bit code + sub unvdup32 { + my $arg=shift; + + $arg =~ m/q([0-9]+),\s*q([0-9]+)\[([0-3])\]/o && + sprintf "vdup.32 q%d,d%d[%d]",$1,2*$2+($3>>1),$3&1; + } + sub unvpmullp64 { + my ($mnemonic,$arg)=@_; + + if ($arg =~ m/q([0-9]+),\s*q([0-9]+),\s*q([0-9]+)/o) { + my $word = 0xf2a00e00|(($1&7)<<13)|(($1&8)<<19) + |(($2&7)<<17)|(($2&8)<<4) + |(($3&7)<<1) |(($3&8)<<2); + $word |= 0x00010001 if ($mnemonic =~ "2"); + # since ARMv7 instructions are always encoded little-endian. + # correct solution is to use .inst directive, but older + # assemblers don't implement it:-( + sprintf ".byte\t0x%02x,0x%02x,0x%02x,0x%02x\t@ %s %s", + $word&0xff,($word>>8)&0xff, + ($word>>16)&0xff,($word>>24)&0xff, + $mnemonic,$arg; + } + } + + foreach(split("\n",$code)) { + s/\b[wx]([0-9]+)\b/r$1/go; # new->old registers + s/\bv([0-9])\.[12468]+[bsd]\b/q$1/go; # new->old registers + s/\/\/\s?/@ /o; # new->old style commentary + + # fix up remainig new-style suffixes + s/\],#[0-9]+/]!/o; + + s/cclr\s+([^,]+),\s*([a-z]+)/mov$2 $1,#0/o or + s/vdup\.32\s+(.*)/unvdup32($1)/geo or + s/v?(pmull2?)\.p64\s+(.*)/unvpmullp64($1,$2)/geo or + s/\bq([0-9]+)#(lo|hi)/sprintf "d%d",2*$1+($2 eq "hi")/geo or + s/^(\s+)b\./$1b/o or + s/^(\s+)ret/$1bx\tlr/o; + + print $_,"\n"; + } +} + +close STDOUT; # enforce flush diff --git a/crypto/modes/gcm128.c b/crypto/modes/gcm128.c index e1dc2b0..79ebb66 100644 --- a/crypto/modes/gcm128.c +++ b/crypto/modes/gcm128.c @@ -642,7 +642,7 @@ static void gcm_gmult_1bit(u64 Xi[2],const u64 H[2]) #endif -#if TABLE_BITS==4 && defined(GHASH_ASM) +#if TABLE_BITS==4 && (defined(GHASH_ASM) || defined(OPENSSL_CPUID_OBJ)) # if !defined(I386_ONLY) && \ (defined(__i386) || defined(__i386__) || \ defined(__x86_64) || defined(__x86_64__) || \ @@ -663,13 +663,21 @@ void gcm_ghash_4bit_mmx(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len void gcm_gmult_4bit_x86(u64 Xi[2],const u128 Htable[16]); void gcm_ghash_4bit_x86(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len); # endif -# elif defined(__arm__) || defined(__arm) +# elif defined(__arm__) || defined(__arm) || defined(__aarch64__) # include "arm_arch.h" # if __ARM_ARCH__>=7 # define GHASH_ASM_ARM # define GCM_FUNCREF_4BIT +# define PMULL_CAPABLE (OPENSSL_armcap_P & ARMV8_PMULL) +# if defined(__arm__) || defined(__arm) +# define NEON_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON) +# endif +void gcm_init_neon(u128 Htable[16],const u64 Xi[2]); void gcm_gmult_neon(u64 Xi[2],const u128 Htable[16]); void gcm_ghash_neon(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len); +void gcm_init_v8(u128 Htable[16],const u64 Xi[2]); +void gcm_gmult_v8(u64 Xi[2],const u128 Htable[16]); +void gcm_ghash_v8(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len); # endif # endif #endif @@ -739,10 +747,21 @@ void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx,void *key,block128_f block) ctx->ghash = gcm_ghash_4bit; # endif # elif defined(GHASH_ASM_ARM) - if (OPENSSL_armcap_P & ARMV7_NEON) { +# ifdef PMULL_CAPABLE + if (PMULL_CAPABLE) { + gcm_init_v8(ctx->Htable,ctx->H.u); + ctx->gmult = gcm_gmult_v8; + ctx->ghash = gcm_ghash_v8; + } else +# endif +# ifdef NEON_CAPABLE + if (NEON_CAPABLE) { + gcm_init_neon(ctx->Htable,ctx->H.u); ctx->gmult = gcm_gmult_neon; ctx->ghash = gcm_ghash_neon; - } else { + } else +# endif + { gcm_init_4bit(ctx->Htable,ctx->H.u); ctx->gmult = gcm_gmult_4bit; ctx->ghash = gcm_ghash_4bit; diff --git a/crypto/sha/Makefile b/crypto/sha/Makefile index 2eb2b7a..6ef027d 100644 --- a/crypto/sha/Makefile +++ b/crypto/sha/Makefile @@ -92,6 +92,9 @@ sha512-%.S: asm/sha512-%.pl; $(PERL) $< $(PERLASM_SCHEME) $@ sha1-armv4-large.o: sha1-armv4-large.S sha256-armv4.o: sha256-armv4.S sha512-armv4.o: sha512-armv4.S +sha1-armv8.o: sha1-armv8.S +sha256-armv8.o: sha256-armv8.S +sha512-armv8.o: sha512-armv8.S files: $(PERL) $(TOP)/util/files.pl Makefile >> $(TOP)/MINFO diff --git a/crypto/sha/asm/sha1-armv4-large.pl b/crypto/sha/asm/sha1-armv4-large.pl index 33da3e0..50bd07b 100644 --- a/crypto/sha/asm/sha1-armv4-large.pl +++ b/crypto/sha/asm/sha1-armv4-large.pl @@ -1,7 +1,7 @@ #!/usr/bin/env perl # ==================================================================== -# Written by Andy Polyakov for the OpenSSL +# Written by Andy Polyakov for the OpenSSL # project. The module is, however, dual licensed under OpenSSL and # CRYPTOGAMS licenses depending on where you obtain it. For further # details see http://www.openssl.org/~appro/cryptogams/. @@ -52,6 +52,20 @@ # Profiler-assisted and platform-specific optimization resulted in 10% # improvement on Cortex A8 core and 12.2 cycles per byte. +# September 2013. +# +# Add NEON implementation (see sha1-586.pl for background info). On +# Cortex A8 it was measured to process one byte in 6.7 cycles or >80% +# faster than integer-only code. Because [fully unrolled] NEON code +# is ~2.5x larger and there are some redundant instructions executed +# when processing last block, improvement is not as big for smallest +# blocks, only ~30%. Snapdragon S4 is a tad faster, 6.4 cycles per +# byte, which is also >80% faster than integer-only code. + +# May 2014. +# +# Add ARMv8 code path performing at 2.35 cpb on Apple A7. + while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} open STDOUT,">$output"; @@ -153,12 +167,22 @@ $code=<<___; #include "arm_arch.h" .text +.code 32 .global sha1_block_data_order .type sha1_block_data_order,%function -.align 2 +.align 5 sha1_block_data_order: +#if __ARM_ARCH__>=7 + sub r3,pc,#8 @ sha1_block_data_order + ldr r12,.LOPENSSL_armcap + ldr r12,[r3,r12] @ OPENSSL_armcap_P + tst r12,#ARMV8_SHA1 + bne .LARMv8 + tst r12,#ARMV7_NEON + bne .LNEON +#endif stmdb sp!,{r4-r12,lr} add $len,$inp,$len,lsl#6 @ $len to point at the end of $inp ldmia $ctx,{$a,$b,$c,$d,$e} @@ -233,16 +257,422 @@ $code.=<<___; moveq pc,lr @ be binary compatible with V4, yet bx lr @ interoperable with Thumb ISA:-) #endif -.align 2 +.size sha1_block_data_order,.-sha1_block_data_order + +.align 5 .LK_00_19: .word 0x5a827999 .LK_20_39: .word 0x6ed9eba1 .LK_40_59: .word 0x8f1bbcdc .LK_60_79: .word 0xca62c1d6 -.size sha1_block_data_order,.-sha1_block_data_order -.asciz "SHA1 block transform for ARMv4, CRYPTOGAMS by " -.align 2 +.LOPENSSL_armcap: +.word OPENSSL_armcap_P-sha1_block_data_order +.asciz "SHA1 block transform for ARMv4/NEON/ARMv8, CRYPTOGAMS by " +.align 5 +___ +##################################################################### +# NEON stuff +# +{{{ +my @V=($a,$b,$c,$d,$e); +my ($K_XX_XX,$Ki,$t0,$t1,$Xfer,$saved_sp)=map("r$_",(8..12,14)); +my $Xi=4; +my @X=map("q$_",(8..11,0..3)); +my @Tx=("q12","q13"); +my ($K,$zero)=("q14","q15"); +my $j=0; + +sub AUTOLOAD() # thunk [simplified] x86-style perlasm +{ my $opcode = $AUTOLOAD; $opcode =~ s/.*:://; $opcode =~ s/_/\./; + my $arg = pop; + $arg = "#$arg" if ($arg*1 eq $arg); + $code .= "\t$opcode\t".join(',',@_,$arg)."\n"; +} + +sub body_00_19 () { + ( + '($a,$b,$c,$d,$e)=@V;'. # '$code.="@ $j\n";'. + '&bic ($t0,$d,$b)', + '&add ($e,$e,$Ki)', # e+=X[i]+K + '&and ($t1,$c,$b)', + '&ldr ($Ki,sprintf "[sp,#%d]",4*(($j+1)&15))', + '&add ($e,$e,$a,"ror#27")', # e+=ROR(A,27) + '&eor ($t1,$t1,$t0)', # F_00_19 + '&mov ($b,$b,"ror#2")', # b=ROR(b,2) + '&add ($e,$e,$t1);'. # e+=F_00_19 + '$j++; unshift(@V,pop(@V));' + ) +} +sub body_20_39 () { + ( + '($a,$b,$c,$d,$e)=@V;'. # '$code.="@ $j\n";'. + '&eor ($t0,$b,$d)', + '&add ($e,$e,$Ki)', # e+=X[i]+K + '&ldr ($Ki,sprintf "[sp,#%d]",4*(($j+1)&15)) if ($j<79)', + '&eor ($t1,$t0,$c)', # F_20_39 + '&add ($e,$e,$a,"ror#27")', # e+=ROR(A,27) + '&mov ($b,$b,"ror#2")', # b=ROR(b,2) + '&add ($e,$e,$t1);'. # e+=F_20_39 + '$j++; unshift(@V,pop(@V));' + ) +} +sub body_40_59 () { + ( + '($a,$b,$c,$d,$e)=@V;'. # '$code.="@ $j\n";'. + '&add ($e,$e,$Ki)', # e+=X[i]+K + '&and ($t0,$c,$d)', + '&ldr ($Ki,sprintf "[sp,#%d]",4*(($j+1)&15))', + '&add ($e,$e,$a,"ror#27")', # e+=ROR(A,27) + '&eor ($t1,$c,$d)', + '&add ($e,$e,$t0)', + '&and ($t1,$t1,$b)', + '&mov ($b,$b,"ror#2")', # b=ROR(b,2) + '&add ($e,$e,$t1);'. # e+=F_40_59 + '$j++; unshift(@V,pop(@V));' + ) +} + +sub Xupdate_16_31 () +{ use integer; + my $body = shift; + my @insns = (&$body,&$body,&$body,&$body); + my ($a,$b,$c,$d,$e); + + &vext_8 (@X[0],@X[-4&7],@X[-3&7],8); # compose "X[-14]" in "X[0]" + eval(shift(@insns)); + eval(shift(@insns)); + eval(shift(@insns)); + &vadd_i32 (@Tx[1],@X[-1&7],$K); + eval(shift(@insns)); + &vld1_32 ("{$K\[]}","[$K_XX_XX,:32]!") if ($Xi%5==0); + eval(shift(@insns)); + &vext_8 (@Tx[0],@X[-1&7],$zero,4); # "X[-3]", 3 words + eval(shift(@insns)); + eval(shift(@insns)); + eval(shift(@insns)); + &veor (@X[0],@X[0],@X[-4&7]); # "X[0]"^="X[-16]" + eval(shift(@insns)); + eval(shift(@insns)); + &veor (@Tx[0],@Tx[0],@X[-2&7]); # "X[-3]"^"X[-8]" + eval(shift(@insns)); + eval(shift(@insns)); + &veor (@Tx[0],@Tx[0],@X[0]); # "X[0]"^="X[-3]"^"X[-8] + eval(shift(@insns)); + eval(shift(@insns)); + &vst1_32 ("{@Tx[1]}","[$Xfer,:128]!"); # X[]+K xfer + &sub ($Xfer,$Xfer,64) if ($Xi%4==0); + eval(shift(@insns)); + eval(shift(@insns)); + &vext_8 (@Tx[1],$zero,@Tx[0],4); # "X[0]"<<96, extract one dword + eval(shift(@insns)); + eval(shift(@insns)); + &vadd_i32 (@X[0],@Tx[0],@Tx[0]); + eval(shift(@insns)); + eval(shift(@insns)); + &vsri_32 (@X[0],@Tx[0],31); # "X[0]"<<<=1 + eval(shift(@insns)); + eval(shift(@insns)); + eval(shift(@insns)); + &vshr_u32 (@Tx[0],@Tx[1],30); + eval(shift(@insns)); + eval(shift(@insns)); + &vshl_u32 (@Tx[1],@Tx[1],2); + eval(shift(@insns)); + eval(shift(@insns)); + &veor (@X[0],@X[0],@Tx[0]); + eval(shift(@insns)); + eval(shift(@insns)); + &veor (@X[0],@X[0],@Tx[1]); # "X[0]"^=("X[0]">>96)<<<2 + + foreach (@insns) { eval; } # remaining instructions [if any] + + $Xi++; push(@X,shift(@X)); # "rotate" X[] +} + +sub Xupdate_32_79 () +{ use integer; + my $body = shift; + my @insns = (&$body,&$body,&$body,&$body); + my ($a,$b,$c,$d,$e); + + &vext_8 (@Tx[0],@X[-2&7],@X[-1&7],8); # compose "X[-6]" + eval(shift(@insns)); + eval(shift(@insns)); + eval(shift(@insns)); + &veor (@X[0],@X[0],@X[-4&7]); # "X[0]"="X[-32]"^"X[-16]" + eval(shift(@insns)); + eval(shift(@insns)); + &veor (@X[0],@X[0],@X[-7&7]); # "X[0]"^="X[-28]" + eval(shift(@insns)); + eval(shift(@insns)); + &vadd_i32 (@Tx[1],@X[-1&7],$K); + eval(shift(@insns)); + &vld1_32 ("{$K\[]}","[$K_XX_XX,:32]!") if ($Xi%5==0); + eval(shift(@insns)); + &veor (@Tx[0],@Tx[0],@X[0]); # "X[-6]"^="X[0]" + eval(shift(@insns)); + eval(shift(@insns)); + &vshr_u32 (@X[0],@Tx[0],30); + eval(shift(@insns)); + eval(shift(@insns)); + &vst1_32 ("{@Tx[1]}","[$Xfer,:128]!"); # X[]+K xfer + &sub ($Xfer,$Xfer,64) if ($Xi%4==0); + eval(shift(@insns)); + eval(shift(@insns)); + &vsli_32 (@X[0],@Tx[0],2); # "X[0]"="X[-6]"<<<2 + + foreach (@insns) { eval; } # remaining instructions [if any] + + $Xi++; push(@X,shift(@X)); # "rotate" X[] +} + +sub Xuplast_80 () +{ use integer; + my $body = shift; + my @insns = (&$body,&$body,&$body,&$body); + my ($a,$b,$c,$d,$e); + + &vadd_i32 (@Tx[1],@X[-1&7],$K); + eval(shift(@insns)); + eval(shift(@insns)); + &vst1_32 ("{@Tx[1]}","[$Xfer,:128]!"); + &sub ($Xfer,$Xfer,64); + + &teq ($inp,$len); + &sub ($K_XX_XX,$K_XX_XX,16); # rewind $K_XX_XX + &subeq ($inp,$inp,64); # reload last block to avoid SEGV + &vld1_8 ("{@X[-4&7]-@X[-3&7]}","[$inp]!"); + eval(shift(@insns)); + eval(shift(@insns)); + &vld1_8 ("{@X[-2&7]-@X[-1&7]}","[$inp]!"); + eval(shift(@insns)); + eval(shift(@insns)); + &vld1_32 ("{$K\[]}","[$K_XX_XX,:32]!"); # load K_00_19 + eval(shift(@insns)); + eval(shift(@insns)); + &vrev32_8 (@X[-4&7],@X[-4&7]); + + foreach (@insns) { eval; } # remaining instructions + + $Xi=0; +} + +sub Xloop() +{ use integer; + my $body = shift; + my @insns = (&$body,&$body,&$body,&$body); + my ($a,$b,$c,$d,$e); + + &vrev32_8 (@X[($Xi-3)&7],@X[($Xi-3)&7]); + eval(shift(@insns)); + eval(shift(@insns)); + &vadd_i32 (@X[$Xi&7],@X[($Xi-4)&7],$K); + eval(shift(@insns)); + eval(shift(@insns)); + &vst1_32 ("{@X[$Xi&7]}","[$Xfer,:128]!");# X[]+K xfer to IALU + + foreach (@insns) { eval; } + + $Xi++; +} + +$code.=<<___; +#if __ARM_ARCH__>=7 +.fpu neon + +.type sha1_block_data_order_neon,%function +.align 4 +sha1_block_data_order_neon: +.LNEON: + stmdb sp!,{r4-r12,lr} + add $len,$inp,$len,lsl#6 @ $len to point at the end of $inp + @ dmb @ errata #451034 on early Cortex A8 + @ vstmdb sp!,{d8-d15} @ ABI specification says so + mov $saved_sp,sp + sub sp,sp,#64 @ alloca + adr $K_XX_XX,.LK_00_19 + bic sp,sp,#15 @ align for 128-bit stores + + ldmia $ctx,{$a,$b,$c,$d,$e} @ load context + mov $Xfer,sp + + vld1.8 {@X[-4&7]-@X[-3&7]},[$inp]! @ handles unaligned + veor $zero,$zero,$zero + vld1.8 {@X[-2&7]-@X[-1&7]},[$inp]! + vld1.32 {${K}\[]},[$K_XX_XX,:32]! @ load K_00_19 + vrev32.8 @X[-4&7],@X[-4&7] @ yes, even on + vrev32.8 @X[-3&7],@X[-3&7] @ big-endian... + vrev32.8 @X[-2&7],@X[-2&7] + vadd.i32 @X[0],@X[-4&7],$K + vrev32.8 @X[-1&7],@X[-1&7] + vadd.i32 @X[1],@X[-3&7],$K + vst1.32 {@X[0]},[$Xfer,:128]! + vadd.i32 @X[2],@X[-2&7],$K + vst1.32 {@X[1]},[$Xfer,:128]! + vst1.32 {@X[2]},[$Xfer,:128]! + ldr $Ki,[sp] @ big RAW stall + +.Loop_neon: +___ + &Xupdate_16_31(\&body_00_19); + &Xupdate_16_31(\&body_00_19); + &Xupdate_16_31(\&body_00_19); + &Xupdate_16_31(\&body_00_19); + &Xupdate_32_79(\&body_00_19); + &Xupdate_32_79(\&body_20_39); + &Xupdate_32_79(\&body_20_39); + &Xupdate_32_79(\&body_20_39); + &Xupdate_32_79(\&body_20_39); + &Xupdate_32_79(\&body_20_39); + &Xupdate_32_79(\&body_40_59); + &Xupdate_32_79(\&body_40_59); + &Xupdate_32_79(\&body_40_59); + &Xupdate_32_79(\&body_40_59); + &Xupdate_32_79(\&body_40_59); + &Xupdate_32_79(\&body_20_39); + &Xuplast_80(\&body_20_39); + &Xloop(\&body_20_39); + &Xloop(\&body_20_39); + &Xloop(\&body_20_39); +$code.=<<___; + ldmia $ctx,{$Ki,$t0,$t1,$Xfer} @ accumulate context + add $a,$a,$Ki + ldr $Ki,[$ctx,#16] + add $b,$b,$t0 + add $c,$c,$t1 + add $d,$d,$Xfer + moveq sp,$saved_sp + add $e,$e,$Ki + ldrne $Ki,[sp] + stmia $ctx,{$a,$b,$c,$d,$e} + addne $Xfer,sp,#3*16 + bne .Loop_neon + + @ vldmia sp!,{d8-d15} + ldmia sp!,{r4-r12,pc} +.size sha1_block_data_order_neon,.-sha1_block_data_order_neon +#endif +___ +}}} +##################################################################### +# ARMv8 stuff +# +{{{ +my ($ABCD,$E,$E0,$E1)=map("q$_",(0..3)); +my @MSG=map("q$_",(4..7)); +my @Kxx=map("q$_",(8..11)); +my ($W0,$W1,$ABCD_SAVE)=map("q$_",(12..14)); + +$code.=<<___; +#if __ARM_ARCH__>=7 +.type sha1_block_data_order_armv8,%function +.align 5 +sha1_block_data_order_armv8: +.LARMv8: + vstmdb sp!,{d8-d15} @ ABI specification says so + + veor $E,$E,$E + adr r3,.LK_00_19 + vld1.32 {$ABCD},[$ctx]! + vld1.32 {$E\[0]},[$ctx] + sub $ctx,$ctx,#16 + vld1.32 {@Kxx[0]\[]},[r3,:32]! + vld1.32 {@Kxx[1]\[]},[r3,:32]! + vld1.32 {@Kxx[2]\[]},[r3,:32]! + vld1.32 {@Kxx[3]\[]},[r3,:32] + +.Loop_v8: + vld1.8 {@MSG[0]-@MSG[1]},[$inp]! + vld1.8 {@MSG[2]-@MSG[3]},[$inp]! + vrev32.8 @MSG[0],@MSG[0] + vrev32.8 @MSG[1],@MSG[1] + + vadd.i32 $W0,@Kxx[0],@MSG[0] + vrev32.8 @MSG[2],@MSG[2] + vmov $ABCD_SAVE,$ABCD @ offload + subs $len,$len,#1 + + vadd.i32 $W1,@Kxx[0],@MSG[1] + vrev32.8 @MSG[3],@MSG[3] + sha1h $E1,$ABCD @ 0 + sha1c $ABCD,$E,$W0 + vadd.i32 $W0,@Kxx[$j],@MSG[2] + sha1su0 @MSG[0],@MSG[1],@MSG[2] +___ +for ($j=0,$i=1;$i<20-3;$i++) { +my $f=("c","p","m","p")[$i/5]; +$code.=<<___; + sha1h $E0,$ABCD @ $i + sha1$f $ABCD,$E1,$W1 + vadd.i32 $W1,@Kxx[$j],@MSG[3] + sha1su1 @MSG[0],@MSG[3] +___ +$code.=<<___ if ($i<20-4); + sha1su0 @MSG[1],@MSG[2],@MSG[3] ___ + ($E0,$E1)=($E1,$E0); ($W0,$W1)=($W1,$W0); + push(@MSG,shift(@MSG)); $j++ if ((($i+3)%5)==0); +} +$code.=<<___; + sha1h $E0,$ABCD @ $i + sha1p $ABCD,$E1,$W1 + vadd.i32 $W1,@Kxx[$j],@MSG[3] + + sha1h $E1,$ABCD @ 18 + sha1p $ABCD,$E0,$W0 + + sha1h $E0,$ABCD @ 19 + sha1p $ABCD,$E1,$W1 + + vadd.i32 $E,$E,$E0 + vadd.i32 $ABCD,$ABCD,$ABCD_SAVE + bne .Loop_v8 + + vst1.32 {$ABCD},[$ctx]! + vst1.32 {$E\[0]},[$ctx] + + vldmia sp!,{d8-d15} + ret @ bx lr +.size sha1_block_data_order_armv8,.-sha1_block_data_order_armv8 +#endif +___ +}}} +$code.=<<___; +.comm OPENSSL_armcap_P,4,4 +___ + +{ my %opcode = ( + "sha1c" => 0xf2000c40, "sha1p" => 0xf2100c40, + "sha1m" => 0xf2200c40, "sha1su0" => 0xf2300c40, + "sha1h" => 0xf3b902c0, "sha1su1" => 0xf3ba0380 ); + + sub unsha1 { + my ($mnemonic,$arg)=@_; + + if ($arg =~ m/q([0-9]+)(?:,\s*q([0-9]+))?,\s*q([0-9]+)/o) { + my $word = $opcode{$mnemonic}|(($1&7)<<13)|(($1&8)<<19) + |(($2&7)<<17)|(($2&8)<<4) + |(($3&7)<<1) |(($3&8)<<2); + # since ARMv7 instructions are always encoded little-endian. + # correct solution is to use .inst directive, but older + # assemblers don't implement it:-( + sprintf ".byte\t0x%02x,0x%02x,0x%02x,0x%02x\t@ %s %s", + $word&0xff,($word>>8)&0xff, + ($word>>16)&0xff,($word>>24)&0xff, + $mnemonic,$arg; + } + } +} + +foreach (split($/,$code)) { + s/{q([0-9]+)\[\]}/sprintf "{d%d[],d%d[]}",2*$1,2*$1+1/eo or + s/{q([0-9]+)\[0\]}/sprintf "{d%d[0]}",2*$1/eo; + + s/\b(sha1\w+)\s+(q.*)/unsha1($1,$2)/geo; + + s/\bret\b/bx lr/o or + s/\bbx\s+lr\b/.word\t0xe12fff1e/o; # make it possible to compile with -march=armv4 + + print $_,$/; +} -$code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4 -print $code; close STDOUT; # enforce flush diff --git a/crypto/sha/asm/sha1-armv8.pl b/crypto/sha/asm/sha1-armv8.pl new file mode 100644 index 0000000..c1f552b --- /dev/null +++ b/crypto/sha/asm/sha1-armv8.pl @@ -0,0 +1,333 @@ +#!/usr/bin/env perl +# +# ==================================================================== +# Written by Andy Polyakov for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# ==================================================================== +# +# SHA1 for ARMv8. +# +# Performance in cycles per processed byte and improvement coefficient +# over code generated with "default" compiler: +# +# hardware-assisted software(*) +# Apple A7 2.31 4.13 (+14%) +# Cortex-A5x n/a n/a +# +# (*) Software results are presented mostly for reference purposes. + +$flavour = shift; +open STDOUT,">".shift; + +($ctx,$inp,$num)=("x0","x1","x2"); +@Xw=map("w$_",(3..17,19)); +@Xx=map("x$_",(3..17,19)); +@V=($A,$B,$C,$D,$E)=map("w$_",(20..24)); +($t0,$t1,$t2,$K)=map("w$_",(25..28)); + + +sub BODY_00_19 { +my ($i,$a,$b,$c,$d,$e)=@_; +my $j=($i+2)&15; + +$code.=<<___ if ($i<15 && !($i&1)); + lsr @Xx[$i+1],@Xx[$i],#32 +___ +$code.=<<___ if ($i<14 && !($i&1)); + ldr @Xx[$i+2],[$inp,#`($i+2)*4-64`] +___ +$code.=<<___ if ($i<14 && ($i&1)); +#ifdef __ARMEB__ + ror @Xx[$i+1],@Xx[$i+1],#32 +#else + rev32 @Xx[$i+1],@Xx[$i+1] +#endif +___ +$code.=<<___ if ($i<14); + bic $t0,$d,$b + and $t1,$c,$b + ror $t2,$a,#27 + add $d,$d,$K // future e+=K + orr $t0,$t0,$t1 + add $e,$e,$t2 // e+=rot(a,5) + ror $b,$b,#2 + add $d,$d,@Xw[($i+1)&15] // future e+=X[i] + add $e,$e,$t0 // e+=F(b,c,d) +___ +$code.=<<___ if ($i==19); + movz $K,#0xeba1 + movk $K,#0x6ed9,lsl#16 +___ +$code.=<<___ if ($i>=14); + eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15] + bic $t0,$d,$b + and $t1,$c,$b + ror $t2,$a,#27 + eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15] + add $d,$d,$K // future e+=K + orr $t0,$t0,$t1 + add $e,$e,$t2 // e+=rot(a,5) + eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15] + ror $b,$b,#2 + add $d,$d,@Xw[($i+1)&15] // future e+=X[i] + add $e,$e,$t0 // e+=F(b,c,d) + ror @Xw[$j],@Xw[$j],#31 +___ +} + +sub BODY_40_59 { +my ($i,$a,$b,$c,$d,$e)=@_; +my $j=($i+2)&15; + +$code.=<<___ if ($i==59); + movz $K,#0xc1d6 + movk $K,#0xca62,lsl#16 +___ +$code.=<<___; + orr $t0,$b,$c + and $t1,$b,$c + eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15] + ror $t2,$a,#27 + and $t0,$t0,$d + add $d,$d,$K // future e+=K + eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15] + add $e,$e,$t2 // e+=rot(a,5) + orr $t0,$t0,$t1 + ror $b,$b,#2 + eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15] + add $d,$d,@Xw[($i+1)&15] // future e+=X[i] + add $e,$e,$t0 // e+=F(b,c,d) + ror @Xw[$j],@Xw[$j],#31 +___ +} + +sub BODY_20_39 { +my ($i,$a,$b,$c,$d,$e)=@_; +my $j=($i+2)&15; + +$code.=<<___ if ($i==39); + movz $K,#0xbcdc + movk $K,#0x8f1b,lsl#16 +___ +$code.=<<___ if ($i<78); + eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15] + eor $t0,$d,$b + ror $t2,$a,#27 + add $d,$d,$K // future e+=K + eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15] + eor $t0,$t0,$c + add $e,$e,$t2 // e+=rot(a,5) + ror $b,$b,#2 + eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15] + add $d,$d,@Xw[($i+1)&15] // future e+=X[i] + add $e,$e,$t0 // e+=F(b,c,d) + ror @Xw[$j],@Xw[$j],#31 +___ +$code.=<<___ if ($i==78); + ldp @Xw[1],@Xw[2],[$ctx] + eor $t0,$d,$b + ror $t2,$a,#27 + add $d,$d,$K // future e+=K + eor $t0,$t0,$c + add $e,$e,$t2 // e+=rot(a,5) + ror $b,$b,#2 + add $d,$d,@Xw[($i+1)&15] // future e+=X[i] + add $e,$e,$t0 // e+=F(b,c,d) +___ +$code.=<<___ if ($i==79); + ldp @Xw[3],@Xw[4],[$ctx,#8] + eor $t0,$d,$b + ror $t2,$a,#27 + eor $t0,$t0,$c + add $e,$e,$t2 // e+=rot(a,5) + ror $b,$b,#2 + ldr @Xw[5],[$ctx,#16] + add $e,$e,$t0 // e+=F(b,c,d) +___ +} + +$code.=<<___; +#include "arm_arch.h" + +.text + +.globl sha1_block_data_order +.type sha1_block_data_order,%function +.align 6 +sha1_block_data_order: + ldr x16,.LOPENSSL_armcap_P + adr x17,.LOPENSSL_armcap_P + add x16,x16,x17 + ldr w16,[x16] + tst w16,#ARMV8_SHA1 + b.ne .Lv8_entry + + stp x29,x30,[sp,#-96]! + add x29,sp,#0 + stp x19,x20,[sp,#16] + stp x21,x22,[sp,#32] + stp x23,x24,[sp,#48] + stp x25,x26,[sp,#64] + stp x27,x28,[sp,#80] + + ldp $A,$B,[$ctx] + ldp $C,$D,[$ctx,#8] + ldr $E,[$ctx,#16] + +.Loop: + ldr @Xx[0],[$inp],#64 + movz $K,#0x7999 + sub $num,$num,#1 + movk $K,#0x5a82,lsl#16 +#ifdef __ARMEB__ + ror $Xx[0],@Xx[0],#32 +#else + rev32 @Xx[0],@Xx[0] +#endif + add $E,$E,$K // warm it up + add $E,$E,@Xw[0] +___ +for($i=0;$i<20;$i++) { &BODY_00_19($i,@V); unshift(@V,pop(@V)); } +for(;$i<40;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); } +for(;$i<60;$i++) { &BODY_40_59($i,@V); unshift(@V,pop(@V)); } +for(;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); } +$code.=<<___; + add $B,$B,@Xw[2] + add $C,$C,@Xw[3] + add $A,$A,@Xw[1] + add $D,$D,@Xw[4] + add $E,$E,@Xw[5] + stp $A,$B,[$ctx] + stp $C,$D,[$ctx,#8] + str $E,[$ctx,#16] + cbnz $num,.Loop + + ldp x19,x20,[sp,#16] + ldp x21,x22,[sp,#32] + ldp x23,x24,[sp,#48] + ldp x25,x26,[sp,#64] + ldp x27,x28,[sp,#80] + ldr x29,[sp],#96 + ret +.size sha1_block_data_order,.-sha1_block_data_order +___ +{{{ +my ($ABCD,$E,$E0,$E1)=map("v$_.16b",(0..3)); +my @MSG=map("v$_.16b",(4..7)); +my @Kxx=map("v$_.4s",(16..19)); +my ($W0,$W1)=("v20.4s","v21.4s"); +my $ABCD_SAVE="v22.16b"; + +$code.=<<___; +.type sha1_block_armv8,%function +.align 6 +sha1_block_armv8: +.Lv8_entry: + stp x29,x30,[sp,#-16]! + add x29,sp,#0 + + adr x4,.Lconst + eor $E,$E,$E + ld1.32 {$ABCD},[$ctx],#16 + ld1.32 {$E}[0],[$ctx] + sub $ctx,$ctx,#16 + ld1.32 {@Kxx[0]-@Kxx[3]},[x4] + +.Loop_hw: + ld1 {@MSG[0]-@MSG[3]},[$inp],#64 + sub $num,$num,#1 + rev32 @MSG[0],@MSG[0] + rev32 @MSG[1],@MSG[1] + + add.i32 $W0,@Kxx[0],@MSG[0] + rev32 @MSG[2],@MSG[2] + orr $ABCD_SAVE,$ABCD,$ABCD // offload + + add.i32 $W1,@Kxx[0],@MSG[1] + rev32 @MSG[3],@MSG[3] + sha1h $E1,$ABCD + sha1c $ABCD,$E,$W0 // 0 + add.i32 $W0,@Kxx[$j],@MSG[2] + sha1su0 @MSG[0],@MSG[1],@MSG[2] +___ +for ($j=0,$i=1;$i<20-3;$i++) { +my $f=("c","p","m","p")[$i/5]; +$code.=<<___; + sha1h $E0,$ABCD // $i + sha1$f $ABCD,$E1,$W1 + add.i32 $W1,@Kxx[$j],@MSG[3] + sha1su1 @MSG[0],@MSG[3] +___ +$code.=<<___ if ($i<20-4); + sha1su0 @MSG[1],@MSG[2],@MSG[3] +___ + ($E0,$E1)=($E1,$E0); ($W0,$W1)=($W1,$W0); + push(@MSG,shift(@MSG)); $j++ if ((($i+3)%5)==0); +} +$code.=<<___; + sha1h $E0,$ABCD // $i + sha1p $ABCD,$E1,$W1 + add.i32 $W1,@Kxx[$j],@MSG[3] + + sha1h $E1,$ABCD // 18 + sha1p $ABCD,$E0,$W0 + + sha1h $E0,$ABCD // 19 + sha1p $ABCD,$E1,$W1 + + add.i32 $E,$E,$E0 + add.i32 $ABCD,$ABCD,$ABCD_SAVE + + cbnz $num,.Loop_hw + + st1.32 {$ABCD},[$ctx],#16 + st1.32 {$E}[0],[$ctx] + + ldr x29,[sp],#16 + ret +.size sha1_block_armv8,.-sha1_block_armv8 +.align 6 +.Lconst: +.long 0x5a827999,0x5a827999,0x5a827999,0x5a827999 //K_00_19 +.long 0x6ed9eba1,0x6ed9eba1,0x6ed9eba1,0x6ed9eba1 //K_20_39 +.long 0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc //K_40_59 +.long 0xca62c1d6,0xca62c1d6,0xca62c1d6,0xca62c1d6 //K_60_79 +.LOPENSSL_armcap_P: +.quad OPENSSL_armcap_P-. +.asciz "SHA1 block transform for ARMv8, CRYPTOGAMS by " +.align 2 +.comm OPENSSL_armcap_P,4,4 +___ +}}} + +{ my %opcode = ( + "sha1c" => 0x5e000000, "sha1p" => 0x5e001000, + "sha1m" => 0x5e002000, "sha1su0" => 0x5e003000, + "sha1h" => 0x5e280800, "sha1su1" => 0x5e281800 ); + + sub unsha1 { + my ($mnemonic,$arg)=@_; + + $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o + && + sprintf ".inst\t0x%08x\t//%s %s", + $opcode{$mnemonic}|$1|($2<<5)|($3<<16), + $mnemonic,$arg; + } +} + +foreach(split("\n",$code)) { + + s/\`([^\`]*)\`/eval($1)/geo; + + s/\b(sha1\w+)\s+([qv].*)/unsha1($1,$2)/geo; + + s/\.\w?32\b//o and s/\.16b/\.4s/go; + m/(ld|st)1[^\[]+\[0\]/o and s/\.4s/\.s/go; + + print $_,"\n"; +} + +close STDOUT; diff --git a/crypto/sha/asm/sha256-armv4.pl b/crypto/sha/asm/sha256-armv4.pl index 9c84e8d..505ca8f 100644 --- a/crypto/sha/asm/sha256-armv4.pl +++ b/crypto/sha/asm/sha256-armv4.pl @@ -1,7 +1,7 @@ #!/usr/bin/env perl # ==================================================================== -# Written by Andy Polyakov for the OpenSSL +# Written by Andy Polyakov for the OpenSSL # project. The module is, however, dual licensed under OpenSSL and # CRYPTOGAMS licenses depending on where you obtain it. For further # details see http://www.openssl.org/~appro/cryptogams/. @@ -21,15 +21,27 @@ # February 2011. # # Profiler-assisted and platform-specific optimization resulted in 16% -# improvement on Cortex A8 core and ~17 cycles per processed byte. +# improvement on Cortex A8 core and ~15.4 cycles per processed byte. + +# September 2013. +# +# Add NEON implementation. On Cortex A8 it was measured to process one +# byte in 12.5 cycles or 23% faster than integer-only code. Snapdragon +# S4 does it in 12.5 cycles too, but it's 50% faster than integer-only +# code (meaning that latter performs sub-optimally, nothing was done +# about it). + +# May 2014. +# +# Add ARMv8 code path performing at 2.0 cpb on Apple A7. while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} open STDOUT,">$output"; $ctx="r0"; $t0="r0"; -$inp="r1"; $t3="r1"; +$inp="r1"; $t4="r1"; $len="r2"; $t1="r2"; -$T1="r3"; +$T1="r3"; $t3="r3"; $A="r4"; $B="r5"; $C="r6"; @@ -52,71 +64,88 @@ my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_; $code.=<<___ if ($i<16); #if __ARM_ARCH__>=7 - ldr $T1,[$inp],#4 + @ ldr $t1,[$inp],#4 @ $i +# if $i==15 + str $inp,[sp,#17*4] @ make room for $t4 +# endif + eor $t0,$e,$e,ror#`$Sigma1[1]-$Sigma1[0]` + add $a,$a,$t2 @ h+=Maj(a,b,c) from the past + eor $t0,$t0,$e,ror#`$Sigma1[2]-$Sigma1[0]` @ Sigma1(e) + rev $t1,$t1 #else - ldrb $T1,[$inp,#3] @ $i + @ ldrb $t1,[$inp,#3] @ $i + add $a,$a,$t2 @ h+=Maj(a,b,c) from the past ldrb $t2,[$inp,#2] - ldrb $t1,[$inp,#1] - ldrb $t0,[$inp],#4 - orr $T1,$T1,$t2,lsl#8 - orr $T1,$T1,$t1,lsl#16 - orr $T1,$T1,$t0,lsl#24 + ldrb $t0,[$inp,#1] + orr $t1,$t1,$t2,lsl#8 + ldrb $t2,[$inp],#4 + orr $t1,$t1,$t0,lsl#16 +# if $i==15 + str $inp,[sp,#17*4] @ make room for $t4 +# endif + eor $t0,$e,$e,ror#`$Sigma1[1]-$Sigma1[0]` + orr $t1,$t1,$t2,lsl#24 + eor $t0,$t0,$e,ror#`$Sigma1[2]-$Sigma1[0]` @ Sigma1(e) #endif ___ $code.=<<___; - mov $t0,$e,ror#$Sigma1[0] ldr $t2,[$Ktbl],#4 @ *K256++ - eor $t0,$t0,$e,ror#$Sigma1[1] + add $h,$h,$t1 @ h+=X[i] + str $t1,[sp,#`$i%16`*4] eor $t1,$f,$g -#if $i>=16 - add $T1,$T1,$t3 @ from BODY_16_xx -#elif __ARM_ARCH__>=7 && defined(__ARMEL__) - rev $T1,$T1 -#endif -#if $i==15 - str $inp,[sp,#17*4] @ leave room for $t3 -#endif - eor $t0,$t0,$e,ror#$Sigma1[2] @ Sigma1(e) + add $h,$h,$t0,ror#$Sigma1[0] @ h+=Sigma1(e) and $t1,$t1,$e - str $T1,[sp,#`$i%16`*4] - add $T1,$T1,$t0 + add $h,$h,$t2 @ h+=K256[i] eor $t1,$t1,$g @ Ch(e,f,g) - add $T1,$T1,$h - mov $h,$a,ror#$Sigma0[0] - add $T1,$T1,$t1 - eor $h,$h,$a,ror#$Sigma0[1] - add $T1,$T1,$t2 - eor $h,$h,$a,ror#$Sigma0[2] @ Sigma0(a) -#if $i>=15 - ldr $t3,[sp,#`($i+2)%16`*4] @ from BODY_16_xx + eor $t0,$a,$a,ror#`$Sigma0[1]-$Sigma0[0]` + add $h,$h,$t1 @ h+=Ch(e,f,g) +#if $i==31 + and $t2,$t2,#0xff + cmp $t2,#0xf2 @ done? #endif - orr $t0,$a,$b - and $t1,$a,$b - and $t0,$t0,$c - add $h,$h,$T1 - orr $t0,$t0,$t1 @ Maj(a,b,c) - add $d,$d,$T1 - add $h,$h,$t0 +#if $i<15 +# if __ARM_ARCH__>=7 + ldr $t1,[$inp],#4 @ prefetch +# else + ldrb $t1,[$inp,#3] +# endif + eor $t2,$a,$b @ a^b, b^c in next round +#else + ldr $t1,[sp,#`($i+2)%16`*4] @ from future BODY_16_xx + eor $t2,$a,$b @ a^b, b^c in next round + ldr $t4,[sp,#`($i+15)%16`*4] @ from future BODY_16_xx +#endif + eor $t0,$t0,$a,ror#`$Sigma0[2]-$Sigma0[0]` @ Sigma0(a) + and $t3,$t3,$t2 @ (b^c)&=(a^b) + add $d,$d,$h @ d+=h + eor $t3,$t3,$b @ Maj(a,b,c) + add $h,$h,$t0,ror#$Sigma0[0] @ h+=Sigma0(a) + @ add $h,$h,$t3 @ h+=Maj(a,b,c) ___ + ($t2,$t3)=($t3,$t2); } sub BODY_16_XX { my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_; $code.=<<___; - @ ldr $t3,[sp,#`($i+1)%16`*4] @ $i - ldr $t2,[sp,#`($i+14)%16`*4] - mov $t0,$t3,ror#$sigma0[0] - ldr $T1,[sp,#`($i+0)%16`*4] - eor $t0,$t0,$t3,ror#$sigma0[1] - ldr $t1,[sp,#`($i+9)%16`*4] - eor $t0,$t0,$t3,lsr#$sigma0[2] @ sigma0(X[i+1]) - mov $t3,$t2,ror#$sigma1[0] - add $T1,$T1,$t0 - eor $t3,$t3,$t2,ror#$sigma1[1] - add $T1,$T1,$t1 - eor $t3,$t3,$t2,lsr#$sigma1[2] @ sigma1(X[i+14]) - @ add $T1,$T1,$t3 + @ ldr $t1,[sp,#`($i+1)%16`*4] @ $i + @ ldr $t4,[sp,#`($i+14)%16`*4] + mov $t0,$t1,ror#$sigma0[0] + add $a,$a,$t2 @ h+=Maj(a,b,c) from the past + mov $t2,$t4,ror#$sigma1[0] + eor $t0,$t0,$t1,ror#$sigma0[1] + eor $t2,$t2,$t4,ror#$sigma1[1] + eor $t0,$t0,$t1,lsr#$sigma0[2] @ sigma0(X[i+1]) + ldr $t1,[sp,#`($i+0)%16`*4] + eor $t2,$t2,$t4,lsr#$sigma1[2] @ sigma1(X[i+14]) + ldr $t4,[sp,#`($i+9)%16`*4] + + add $t2,$t2,$t0 + eor $t0,$e,$e,ror#`$Sigma1[1]-$Sigma1[0]` @ from BODY_00_15 + add $t1,$t1,$t2 + eor $t0,$t0,$e,ror#`$Sigma1[2]-$Sigma1[0]` @ Sigma1(e) + add $t1,$t1,$t4 @ X[i] ___ &BODY_00_15(@_); } @@ -147,46 +176,64 @@ K256: .word 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 .word 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 .size K256,.-K256 +.word 0 @ terminator +.LOPENSSL_armcap: +.word OPENSSL_armcap_P-sha256_block_data_order +.align 5 .global sha256_block_data_order .type sha256_block_data_order,%function sha256_block_data_order: sub r3,pc,#8 @ sha256_block_data_order add $len,$inp,$len,lsl#6 @ len to point at the end of inp +#if __ARM_ARCH__>=7 + ldr r12,.LOPENSSL_armcap + ldr r12,[r3,r12] @ OPENSSL_armcap_P + tst r12,#ARMV8_SHA256 + bne .LARMv8 + tst r12,#ARMV7_NEON + bne .LNEON +#endif stmdb sp!,{$ctx,$inp,$len,r4-r11,lr} ldmia $ctx,{$A,$B,$C,$D,$E,$F,$G,$H} - sub $Ktbl,r3,#256 @ K256 + sub $Ktbl,r3,#256+32 @ K256 sub sp,sp,#16*4 @ alloca(X[16]) .Loop: +# if __ARM_ARCH__>=7 + ldr $t1,[$inp],#4 +# else + ldrb $t1,[$inp,#3] +# endif + eor $t3,$B,$C @ magic + eor $t2,$t2,$t2 ___ for($i=0;$i<16;$i++) { &BODY_00_15($i,@V); unshift(@V,pop(@V)); } $code.=".Lrounds_16_xx:\n"; for (;$i<32;$i++) { &BODY_16_XX($i,@V); unshift(@V,pop(@V)); } $code.=<<___; - and $t2,$t2,#0xff - cmp $t2,#0xf2 + ldreq $t3,[sp,#16*4] @ pull ctx bne .Lrounds_16_xx - ldr $T1,[sp,#16*4] @ pull ctx - ldr $t0,[$T1,#0] - ldr $t1,[$T1,#4] - ldr $t2,[$T1,#8] + add $A,$A,$t2 @ h+=Maj(a,b,c) from the past + ldr $t0,[$t3,#0] + ldr $t1,[$t3,#4] + ldr $t2,[$t3,#8] add $A,$A,$t0 - ldr $t0,[$T1,#12] + ldr $t0,[$t3,#12] add $B,$B,$t1 - ldr $t1,[$T1,#16] + ldr $t1,[$t3,#16] add $C,$C,$t2 - ldr $t2,[$T1,#20] + ldr $t2,[$t3,#20] add $D,$D,$t0 - ldr $t0,[$T1,#24] + ldr $t0,[$t3,#24] add $E,$E,$t1 - ldr $t1,[$T1,#28] + ldr $t1,[$t3,#28] add $F,$F,$t2 ldr $inp,[sp,#17*4] @ pull inp ldr $t2,[sp,#18*4] @ pull inp+len add $G,$G,$t0 add $H,$H,$t1 - stmia $T1,{$A,$B,$C,$D,$E,$F,$G,$H} + stmia $t3,{$A,$B,$C,$D,$E,$F,$G,$H} cmp $inp,$t2 sub $Ktbl,$Ktbl,#256 @ rewind Ktbl bne .Loop @@ -200,12 +247,410 @@ $code.=<<___; moveq pc,lr @ be binary compatible with V4, yet bx lr @ interoperable with Thumb ISA:-) #endif -.size sha256_block_data_order,.-sha256_block_data_order -.asciz "SHA256 block transform for ARMv4, CRYPTOGAMS by " +.size sha256_block_data_order,.-sha256_block_data_order +___ +###################################################################### +# NEON stuff +# +{{{ +my @X=map("q$_",(0..3)); +my ($T0,$T1,$T2,$T3,$T4,$T5)=("q8","q9","q10","q11","d24","d25"); +my $Xfer=$t4; +my $j=0; + +sub Dlo() { shift=~m|q([1]?[0-9])|?"d".($1*2):""; } +sub Dhi() { shift=~m|q([1]?[0-9])|?"d".($1*2+1):""; } + +sub AUTOLOAD() # thunk [simplified] x86-style perlasm +{ my $opcode = $AUTOLOAD; $opcode =~ s/.*:://; $opcode =~ s/_/\./; + my $arg = pop; + $arg = "#$arg" if ($arg*1 eq $arg); + $code .= "\t$opcode\t".join(',',@_,$arg)."\n"; +} + +sub Xupdate() +{ use integer; + my $body = shift; + my @insns = (&$body,&$body,&$body,&$body); + my ($a,$b,$c,$d,$e,$f,$g,$h); + + &vext_8 ($T0,@X[0],@X[1],4); # X[1..4] + eval(shift(@insns)); + eval(shift(@insns)); + eval(shift(@insns)); + &vext_8 ($T1,@X[2],@X[3],4); # X[9..12] + eval(shift(@insns)); + eval(shift(@insns)); + eval(shift(@insns)); + &vshr_u32 ($T2,$T0,$sigma0[0]); + eval(shift(@insns)); + eval(shift(@insns)); + &vadd_i32 (@X[0],@X[0],$T1); # X[0..3] += X[9..12] + eval(shift(@insns)); + eval(shift(@insns)); + &vshr_u32 ($T1,$T0,$sigma0[2]); + eval(shift(@insns)); + eval(shift(@insns)); + &vsli_32 ($T2,$T0,32-$sigma0[0]); + eval(shift(@insns)); + eval(shift(@insns)); + &vshr_u32 ($T3,$T0,$sigma0[1]); + eval(shift(@insns)); + eval(shift(@insns)); + &veor ($T1,$T1,$T2); + eval(shift(@insns)); + eval(shift(@insns)); + &vsli_32 ($T3,$T0,32-$sigma0[1]); + eval(shift(@insns)); + eval(shift(@insns)); + &vshr_u32 ($T4,&Dhi(@X[3]),$sigma1[0]); + eval(shift(@insns)); + eval(shift(@insns)); + &veor ($T1,$T1,$T3); # sigma0(X[1..4]) + eval(shift(@insns)); + eval(shift(@insns)); + &vsli_32 ($T4,&Dhi(@X[3]),32-$sigma1[0]); + eval(shift(@insns)); + eval(shift(@insns)); + &vshr_u32 ($T5,&Dhi(@X[3]),$sigma1[2]); + eval(shift(@insns)); + eval(shift(@insns)); + &vadd_i32 (@X[0],@X[0],$T1); # X[0..3] += sigma0(X[1..4]) + eval(shift(@insns)); + eval(shift(@insns)); + &veor ($T5,$T5,$T4); + eval(shift(@insns)); + eval(shift(@insns)); + &vshr_u32 ($T4,&Dhi(@X[3]),$sigma1[1]); + eval(shift(@insns)); + eval(shift(@insns)); + &vsli_32 ($T4,&Dhi(@X[3]),32-$sigma1[1]); + eval(shift(@insns)); + eval(shift(@insns)); + &veor ($T5,$T5,$T4); # sigma1(X[14..15]) + eval(shift(@insns)); + eval(shift(@insns)); + &vadd_i32 (&Dlo(@X[0]),&Dlo(@X[0]),$T5);# X[0..1] += sigma1(X[14..15]) + eval(shift(@insns)); + eval(shift(@insns)); + &vshr_u32 ($T4,&Dlo(@X[0]),$sigma1[0]); + eval(shift(@insns)); + eval(shift(@insns)); + &vsli_32 ($T4,&Dlo(@X[0]),32-$sigma1[0]); + eval(shift(@insns)); + eval(shift(@insns)); + &vshr_u32 ($T5,&Dlo(@X[0]),$sigma1[2]); + eval(shift(@insns)); + eval(shift(@insns)); + &veor ($T5,$T5,$T4); + eval(shift(@insns)); + eval(shift(@insns)); + &vshr_u32 ($T4,&Dlo(@X[0]),$sigma1[1]); + eval(shift(@insns)); + eval(shift(@insns)); + &vld1_32 ("{$T0}","[$Ktbl,:128]!"); + eval(shift(@insns)); + eval(shift(@insns)); + &vsli_32 ($T4,&Dlo(@X[0]),32-$sigma1[1]); + eval(shift(@insns)); + eval(shift(@insns)); + &veor ($T5,$T5,$T4); # sigma1(X[16..17]) + eval(shift(@insns)); + eval(shift(@insns)); + &vadd_i32 (&Dhi(@X[0]),&Dhi(@X[0]),$T5);# X[2..3] += sigma1(X[16..17]) + eval(shift(@insns)); + eval(shift(@insns)); + &vadd_i32 ($T0,$T0,@X[0]); + while($#insns>=2) { eval(shift(@insns)); } + &vst1_32 ("{$T0}","[$Xfer,:128]!"); + eval(shift(@insns)); + eval(shift(@insns)); + + push(@X,shift(@X)); # "rotate" X[] +} + +sub Xpreload() +{ use integer; + my $body = shift; + my @insns = (&$body,&$body,&$body,&$body); + my ($a,$b,$c,$d,$e,$f,$g,$h); + + eval(shift(@insns)); + eval(shift(@insns)); + eval(shift(@insns)); + eval(shift(@insns)); + &vld1_32 ("{$T0}","[$Ktbl,:128]!"); + eval(shift(@insns)); + eval(shift(@insns)); + eval(shift(@insns)); + eval(shift(@insns)); + &vrev32_8 (@X[0],@X[0]); + eval(shift(@insns)); + eval(shift(@insns)); + eval(shift(@insns)); + eval(shift(@insns)); + &vadd_i32 ($T0,$T0,@X[0]); + foreach (@insns) { eval; } # remaining instructions + &vst1_32 ("{$T0}","[$Xfer,:128]!"); + + push(@X,shift(@X)); # "rotate" X[] +} + +sub body_00_15 () { + ( + '($a,$b,$c,$d,$e,$f,$g,$h)=@V;'. + '&add ($h,$h,$t1)', # h+=X[i]+K[i] + '&eor ($t1,$f,$g)', + '&eor ($t0,$e,$e,"ror#".($Sigma1[1]-$Sigma1[0]))', + '&add ($a,$a,$t2)', # h+=Maj(a,b,c) from the past + '&and ($t1,$t1,$e)', + '&eor ($t2,$t0,$e,"ror#".($Sigma1[2]-$Sigma1[0]))', # Sigma1(e) + '&eor ($t0,$a,$a,"ror#".($Sigma0[1]-$Sigma0[0]))', + '&eor ($t1,$t1,$g)', # Ch(e,f,g) + '&add ($h,$h,$t2,"ror#$Sigma1[0]")', # h+=Sigma1(e) + '&eor ($t2,$a,$b)', # a^b, b^c in next round + '&eor ($t0,$t0,$a,"ror#".($Sigma0[2]-$Sigma0[0]))', # Sigma0(a) + '&add ($h,$h,$t1)', # h+=Ch(e,f,g) + '&ldr ($t1,sprintf "[sp,#%d]",4*(($j+1)&15)) if (($j&15)!=15);'. + '&ldr ($t1,"[$Ktbl]") if ($j==15);'. + '&ldr ($t1,"[sp,#64]") if ($j==31)', + '&and ($t3,$t3,$t2)', # (b^c)&=(a^b) + '&add ($d,$d,$h)', # d+=h + '&add ($h,$h,$t0,"ror#$Sigma0[0]");'. # h+=Sigma0(a) + '&eor ($t3,$t3,$b)', # Maj(a,b,c) + '$j++; unshift(@V,pop(@V)); ($t2,$t3)=($t3,$t2);' + ) +} + +$code.=<<___; +#if __ARM_ARCH__>=7 +.fpu neon + +.type sha256_block_data_order_neon,%function +.align 4 +sha256_block_data_order_neon: +.LNEON: + stmdb sp!,{r4-r12,lr} + + mov $t2,sp + sub sp,sp,#16*4+16 @ alloca + sub $Ktbl,r3,#256+32 @ K256 + bic sp,sp,#15 @ align for 128-bit stores + + vld1.8 {@X[0]},[$inp]! + vld1.8 {@X[1]},[$inp]! + vld1.8 {@X[2]},[$inp]! + vld1.8 {@X[3]},[$inp]! + vld1.32 {$T0},[$Ktbl,:128]! + vld1.32 {$T1},[$Ktbl,:128]! + vld1.32 {$T2},[$Ktbl,:128]! + vld1.32 {$T3},[$Ktbl,:128]! + vrev32.8 @X[0],@X[0] @ yes, even on + str $ctx,[sp,#64] + vrev32.8 @X[1],@X[1] @ big-endian + str $inp,[sp,#68] + mov $Xfer,sp + vrev32.8 @X[2],@X[2] + str $len,[sp,#72] + vrev32.8 @X[3],@X[3] + str $t2,[sp,#76] @ save original sp + vadd.i32 $T0,$T0,@X[0] + vadd.i32 $T1,$T1,@X[1] + vst1.32 {$T0},[$Xfer,:128]! + vadd.i32 $T2,$T2,@X[2] + vst1.32 {$T1},[$Xfer,:128]! + vadd.i32 $T3,$T3,@X[3] + vst1.32 {$T2},[$Xfer,:128]! + vst1.32 {$T3},[$Xfer,:128]! + + ldmia $ctx,{$A-$H} + sub $Xfer,$Xfer,#64 + ldr $t1,[sp,#0] + eor $t2,$t2,$t2 + eor $t3,$B,$C + b .L_00_48 + +.align 4 +.L_00_48: +___ + &Xupdate(\&body_00_15); + &Xupdate(\&body_00_15); + &Xupdate(\&body_00_15); + &Xupdate(\&body_00_15); +$code.=<<___; + teq $t1,#0 @ check for K256 terminator + ldr $t1,[sp,#0] + sub $Xfer,$Xfer,#64 + bne .L_00_48 + + ldr $inp,[sp,#68] + ldr $t0,[sp,#72] + sub $Ktbl,$Ktbl,#256 @ rewind $Ktbl + teq $inp,$t0 + subeq $inp,$inp,#64 @ avoid SEGV + vld1.8 {@X[0]},[$inp]! @ load next input block + vld1.8 {@X[1]},[$inp]! + vld1.8 {@X[2]},[$inp]! + vld1.8 {@X[3]},[$inp]! + strne $inp,[sp,#68] + mov $Xfer,sp +___ + &Xpreload(\&body_00_15); + &Xpreload(\&body_00_15); + &Xpreload(\&body_00_15); + &Xpreload(\&body_00_15); +$code.=<<___; + ldr $t0,[$t1,#0] + add $A,$A,$t2 @ h+=Maj(a,b,c) from the past + ldr $t2,[$t1,#4] + ldr $t3,[$t1,#8] + ldr $t4,[$t1,#12] + add $A,$A,$t0 @ accumulate + ldr $t0,[$t1,#16] + add $B,$B,$t2 + ldr $t2,[$t1,#20] + add $C,$C,$t3 + ldr $t3,[$t1,#24] + add $D,$D,$t4 + ldr $t4,[$t1,#28] + add $E,$E,$t0 + str $A,[$t1],#4 + add $F,$F,$t2 + str $B,[$t1],#4 + add $G,$G,$t3 + str $C,[$t1],#4 + add $H,$H,$t4 + str $D,[$t1],#4 + stmia $t1,{$E-$H} + + movne $Xfer,sp + ldrne $t1,[sp,#0] + eorne $t2,$t2,$t2 + ldreq sp,[sp,#76] @ restore original sp + eorne $t3,$B,$C + bne .L_00_48 + + ldmia sp!,{r4-r12,pc} +.size sha256_block_data_order_neon,.-sha256_block_data_order_neon +#endif +___ +}}} +###################################################################### +# ARMv8 stuff +# +{{{ +my ($ABCD,$EFGH,$abcd)=map("q$_",(0..2)); +my @MSG=map("q$_",(8..11)); +my ($W0,$W1,$ABCD_SAVE,$EFGH_SAVE)=map("q$_",(12..15)); +my $Ktbl="r3"; + +$code.=<<___; +#if __ARM_ARCH__>=7 +.type sha256_block_data_order_armv8,%function +.align 5 +sha256_block_data_order_armv8: +.LARMv8: + vld1.32 {$ABCD,$EFGH},[$ctx] + sub $Ktbl,r3,#sha256_block_data_order-K256 + +.Loop_v8: + vld1.8 {@MSG[0]-@MSG[1]},[$inp]! + vld1.8 {@MSG[2]-@MSG[3]},[$inp]! + vld1.32 {$W0},[$Ktbl]! + vrev32.8 @MSG[0],@MSG[0] + vrev32.8 @MSG[1],@MSG[1] + vrev32.8 @MSG[2],@MSG[2] + vrev32.8 @MSG[3],@MSG[3] + vmov $ABCD_SAVE,$ABCD @ offload + vmov $EFGH_SAVE,$EFGH + teq $inp,$len +___ +for($i=0;$i<12;$i++) { +$code.=<<___; + vld1.32 {$W1},[$Ktbl]! + vadd.i32 $W0,$W0,@MSG[0] + sha256su0 @MSG[0],@MSG[1] + vmov $abcd,$ABCD + sha256h $ABCD,$EFGH,$W0 + sha256h2 $EFGH,$abcd,$W0 + sha256su1 @MSG[0],@MSG[2],@MSG[3] +___ + ($W0,$W1)=($W1,$W0); push(@MSG,shift(@MSG)); +} +$code.=<<___; + vld1.32 {$W1},[$Ktbl]! + vadd.i32 $W0,$W0,@MSG[0] + vmov $abcd,$ABCD + sha256h $ABCD,$EFGH,$W0 + sha256h2 $EFGH,$abcd,$W0 + + vld1.32 {$W0},[$Ktbl]! + vadd.i32 $W1,$W1,@MSG[1] + vmov $abcd,$ABCD + sha256h $ABCD,$EFGH,$W1 + sha256h2 $EFGH,$abcd,$W1 + + vld1.32 {$W1},[$Ktbl] + vadd.i32 $W0,$W0,@MSG[2] + sub $Ktbl,$Ktbl,#256-16 @ rewind + vmov $abcd,$ABCD + sha256h $ABCD,$EFGH,$W0 + sha256h2 $EFGH,$abcd,$W0 + + vadd.i32 $W1,$W1,@MSG[3] + vmov $abcd,$ABCD + sha256h $ABCD,$EFGH,$W1 + sha256h2 $EFGH,$abcd,$W1 + + vadd.i32 $ABCD,$ABCD,$ABCD_SAVE + vadd.i32 $EFGH,$EFGH,$EFGH_SAVE + bne .Loop_v8 + + vst1.32 {$ABCD,$EFGH},[$ctx] + + ret @ bx lr +.size sha256_block_data_order_armv8,.-sha256_block_data_order_armv8 +#endif +___ +}}} +$code.=<<___; +.asciz "SHA256 block transform for ARMv4/NEON/ARMv8, CRYPTOGAMS by " .align 2 +.comm OPENSSL_armcap_P,4,4 ___ -$code =~ s/\`([^\`]*)\`/eval $1/gem; -$code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4 -print $code; +{ my %opcode = ( + "sha256h" => 0xf3000c40, "sha256h2" => 0xf3100c40, + "sha256su0" => 0xf3ba03c0, "sha256su1" => 0xf3200c40 ); + + sub unsha256 { + my ($mnemonic,$arg)=@_; + + if ($arg =~ m/q([0-9]+)(?:,\s*q([0-9]+))?,\s*q([0-9]+)/o) { + my $word = $opcode{$mnemonic}|(($1&7)<<13)|(($1&8)<<19) + |(($2&7)<<17)|(($2&8)<<4) + |(($3&7)<<1) |(($3&8)<<2); + # since ARMv7 instructions are always encoded little-endian. + # correct solution is to use .inst directive, but older + # assemblers don't implement it:-( + sprintf ".byte\t0x%02x,0x%02x,0x%02x,0x%02x\t@ %s %s", + $word&0xff,($word>>8)&0xff, + ($word>>16)&0xff,($word>>24)&0xff, + $mnemonic,$arg; + } + } +} + +foreach (split($/,$code)) { + + s/\`([^\`]*)\`/eval $1/geo; + + s/\b(sha256\w+)\s+(q.*)/unsha256($1,$2)/geo; + + s/\bret\b/bx lr/go or + s/\bbx\s+lr\b/.word\t0xe12fff1e/go; # make it possible to compile with -march=armv4 + + print $_,"\n"; +} + close STDOUT; # enforce flush diff --git a/crypto/sha/asm/sha512-armv4.pl b/crypto/sha/asm/sha512-armv4.pl index 7faf37b..71aa935 100644 --- a/crypto/sha/asm/sha512-armv4.pl +++ b/crypto/sha/asm/sha512-armv4.pl @@ -565,7 +565,7 @@ $code.=<<___; bne .Loop_neon vldmia sp!,{d8-d15} @ epilogue - bx lr + ret @ bx lr #endif ___ } @@ -578,5 +578,6 @@ ___ $code =~ s/\`([^\`]*)\`/eval $1/gem; $code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4 +$code =~ s/\bret\b/bx lr/gm; print $code; close STDOUT; # enforce flush diff --git a/crypto/sha/asm/sha512-armv8.pl b/crypto/sha/asm/sha512-armv8.pl new file mode 100644 index 0000000..6935ed6 --- /dev/null +++ b/crypto/sha/asm/sha512-armv8.pl @@ -0,0 +1,414 @@ +#!/usr/bin/env perl +# +# ==================================================================== +# Written by Andy Polyakov for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# ==================================================================== +# +# SHA256/512 for ARMv8. +# +# Performance in cycles per processed byte and improvement coefficient +# over code generated with "default" compiler: +# +# SHA256-hw SHA256(*) SHA512 +# Apple A7 1.97 10.5 (+33%) 6.73 (-1%(**)) +# Cortex-A5x n/a n/a n/a +# +# (*) Software SHA256 results are of lesser relevance, presented +# mostly for informational purposes. +# (**) The result is a trade-off: it's possible to improve it by +# 10%, but at the cost of 20% loss on Cortex-A5x. + +$flavour=shift; +$output=shift; +open STDOUT,">$output"; + +if ($output =~ /512/) { + $BITS=512; + $SZ=8; + @Sigma0=(28,34,39); + @Sigma1=(14,18,41); + @sigma0=(1, 8, 7); + @sigma1=(19,61, 6); + $rounds=80; + $reg_t="x"; +} else { + $BITS=256; + $SZ=4; + @Sigma0=( 2,13,22); + @Sigma1=( 6,11,25); + @sigma0=( 7,18, 3); + @sigma1=(17,19,10); + $rounds=64; + $reg_t="w"; +} + +$func="sha${BITS}_block_data_order"; + +($ctx,$inp,$num,$Ktbl)=map("x$_",(0..2,30)); + +@X=map("$reg_t$_",(3..15,0..2)); +@V=($A,$B,$C,$D,$E,$F,$G,$H)=map("$reg_t$_",(20..27)); +($t0,$t1,$t2,$t3)=map("$reg_t$_",(16,17,19,28)); + +sub BODY_00_xx { +my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_; +my $j=($i+1)&15; +my ($T0,$T1,$T2)=(@X[($i-8)&15],@X[($i-9)&15],@X[($i-10)&15]); + $T0=@X[$i+3] if ($i<11); + +$code.=<<___ if ($i<16); +#ifndef __ARMEB__ + rev @X[$i],@X[$i] // $i +#endif +___ +$code.=<<___ if ($i<13 && ($i&1)); + ldp @X[$i+1],@X[$i+2],[$inp],#2*$SZ +___ +$code.=<<___ if ($i==13); + ldp @X[14],@X[15],[$inp] +___ +$code.=<<___ if ($i>=14); + ldr @X[($i-11)&15],[sp,#`$SZ*(($i-11)%4)`] +___ +$code.=<<___ if ($i>0 && $i<16); + add $a,$a,$t1 // h+=Sigma0(a) +___ +$code.=<<___ if ($i>=11); + str @X[($i-8)&15],[sp,#`$SZ*(($i-8)%4)`] +___ +# While ARMv8 specifies merged rotate-n-logical operation such as +# 'eor x,y,z,ror#n', it was found to negatively affect performance +# on Apple A7. The reason seems to be that it requires even 'y' to +# be available earlier. This means that such merged instruction is +# not necessarily best choice on critical path... On the other hand +# Cortex-A5x handles merged instructions much better than disjoint +# rotate and logical... See (**) footnote above. +$code.=<<___ if ($i<15); + ror $t0,$e,#$Sigma1[0] + add $h,$h,$t2 // h+=K[i] + eor $T0,$e,$e,ror#`$Sigma1[2]-$Sigma1[1]` + and $t1,$f,$e + bic $t2,$g,$e + add $h,$h,@X[$i&15] // h+=X[i] + orr $t1,$t1,$t2 // Ch(e,f,g) + eor $t2,$a,$b // a^b, b^c in next round + eor $t0,$t0,$T0,ror#$Sigma1[1] // Sigma1(e) + ror $T0,$a,#$Sigma0[0] + add $h,$h,$t1 // h+=Ch(e,f,g) + eor $t1,$a,$a,ror#`$Sigma0[2]-$Sigma0[1]` + add $h,$h,$t0 // h+=Sigma1(e) + and $t3,$t3,$t2 // (b^c)&=(a^b) + add $d,$d,$h // d+=h + eor $t3,$t3,$b // Maj(a,b,c) + eor $t1,$T0,$t1,ror#$Sigma0[1] // Sigma0(a) + add $h,$h,$t3 // h+=Maj(a,b,c) + ldr $t3,[$Ktbl],#$SZ // *K++, $t2 in next round + //add $h,$h,$t1 // h+=Sigma0(a) +___ +$code.=<<___ if ($i>=15); + ror $t0,$e,#$Sigma1[0] + add $h,$h,$t2 // h+=K[i] + ror $T1,@X[($j+1)&15],#$sigma0[0] + and $t1,$f,$e + ror $T2,@X[($j+14)&15],#$sigma1[0] + bic $t2,$g,$e + ror $T0,$a,#$Sigma0[0] + add $h,$h,@X[$i&15] // h+=X[i] + eor $t0,$t0,$e,ror#$Sigma1[1] + eor $T1,$T1,@X[($j+1)&15],ror#$sigma0[1] + orr $t1,$t1,$t2 // Ch(e,f,g) + eor $t2,$a,$b // a^b, b^c in next round + eor $t0,$t0,$e,ror#$Sigma1[2] // Sigma1(e) + eor $T0,$T0,$a,ror#$Sigma0[1] + add $h,$h,$t1 // h+=Ch(e,f,g) + and $t3,$t3,$t2 // (b^c)&=(a^b) + eor $T2,$T2,@X[($j+14)&15],ror#$sigma1[1] + eor $T1,$T1,@X[($j+1)&15],lsr#$sigma0[2] // sigma0(X[i+1]) + add $h,$h,$t0 // h+=Sigma1(e) + eor $t3,$t3,$b // Maj(a,b,c) + eor $t1,$T0,$a,ror#$Sigma0[2] // Sigma0(a) + eor $T2,$T2,@X[($j+14)&15],lsr#$sigma1[2] // sigma1(X[i+14]) + add @X[$j],@X[$j],@X[($j+9)&15] + add $d,$d,$h // d+=h + add $h,$h,$t3 // h+=Maj(a,b,c) + ldr $t3,[$Ktbl],#$SZ // *K++, $t2 in next round + add @X[$j],@X[$j],$T1 + add $h,$h,$t1 // h+=Sigma0(a) + add @X[$j],@X[$j],$T2 +___ + ($t2,$t3)=($t3,$t2); +} + +$code.=<<___; +#include "arm_arch.h" + +.text + +.globl $func +.type $func,%function +.align 6 +$func: +___ +$code.=<<___ if ($SZ==4); + ldr x16,.LOPENSSL_armcap_P + adr x17,.LOPENSSL_armcap_P + add x16,x16,x17 + ldr w16,[x16] + tst w16,#ARMV8_SHA256 + b.ne .Lv8_entry +___ +$code.=<<___; + stp x29,x30,[sp,#-128]! + add x29,sp,#0 + + stp x19,x20,[sp,#16] + stp x21,x22,[sp,#32] + stp x23,x24,[sp,#48] + stp x25,x26,[sp,#64] + stp x27,x28,[sp,#80] + sub sp,sp,#4*$SZ + + ldp $A,$B,[$ctx] // load context + ldp $C,$D,[$ctx,#2*$SZ] + ldp $E,$F,[$ctx,#4*$SZ] + add $num,$inp,$num,lsl#`log(16*$SZ)/log(2)` // end of input + ldp $G,$H,[$ctx,#6*$SZ] + adr $Ktbl,K$BITS + stp $ctx,$num,[x29,#96] + +.Loop: + ldp @X[0],@X[1],[$inp],#2*$SZ + ldr $t2,[$Ktbl],#$SZ // *K++ + eor $t3,$B,$C // magic seed + str $inp,[x29,#112] +___ +for ($i=0;$i<16;$i++) { &BODY_00_xx($i,@V); unshift(@V,pop(@V)); } +$code.=".Loop_16_xx:\n"; +for (;$i<32;$i++) { &BODY_00_xx($i,@V); unshift(@V,pop(@V)); } +$code.=<<___; + cbnz $t2,.Loop_16_xx + + ldp $ctx,$num,[x29,#96] + ldr $inp,[x29,#112] + sub $Ktbl,$Ktbl,#`$SZ*($rounds+1)` // rewind + + ldp @X[0],@X[1],[$ctx] + ldp @X[2],@X[3],[$ctx,#2*$SZ] + add $inp,$inp,#14*$SZ // advance input pointer + ldp @X[4],@X[5],[$ctx,#4*$SZ] + add $A,$A,@X[0] + ldp @X[6],@X[7],[$ctx,#6*$SZ] + add $B,$B,@X[1] + add $C,$C,@X[2] + add $D,$D,@X[3] + stp $A,$B,[$ctx] + add $E,$E,@X[4] + add $F,$F,@X[5] + stp $C,$D,[$ctx,#2*$SZ] + add $G,$G,@X[6] + add $H,$H,@X[7] + cmp $inp,$num + stp $E,$F,[$ctx,#4*$SZ] + stp $G,$H,[$ctx,#6*$SZ] + b.ne .Loop + + ldp x19,x20,[x29,#16] + add sp,sp,#4*$SZ + ldp x21,x22,[x29,#32] + ldp x23,x24,[x29,#48] + ldp x25,x26,[x29,#64] + ldp x27,x28,[x29,#80] + ldp x29,x30,[sp],#128 + ret +.size $func,.-$func + +.align 6 +.type K$BITS,%object +K$BITS: +___ +$code.=<<___ if ($SZ==8); + .quad 0x428a2f98d728ae22,0x7137449123ef65cd + .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc + .quad 0x3956c25bf348b538,0x59f111f1b605d019 + .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118 + .quad 0xd807aa98a3030242,0x12835b0145706fbe + .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2 + .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1 + .quad 0x9bdc06a725c71235,0xc19bf174cf692694 + .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3 + .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65 + .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483 + .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5 + .quad 0x983e5152ee66dfab,0xa831c66d2db43210 + .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4 + .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725 + .quad 0x06ca6351e003826f,0x142929670a0e6e70 + .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926 + .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df + .quad 0x650a73548baf63de,0x766a0abb3c77b2a8 + .quad 0x81c2c92e47edaee6,0x92722c851482353b + .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001 + .quad 0xc24b8b70d0f89791,0xc76c51a30654be30 + .quad 0xd192e819d6ef5218,0xd69906245565a910 + .quad 0xf40e35855771202a,0x106aa07032bbd1b8 + .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53 + .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8 + .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb + .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3 + .quad 0x748f82ee5defb2fc,0x78a5636f43172f60 + .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec + .quad 0x90befffa23631e28,0xa4506cebde82bde9 + .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b + .quad 0xca273eceea26619c,0xd186b8c721c0c207 + .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178 + .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6 + .quad 0x113f9804bef90dae,0x1b710b35131c471b + .quad 0x28db77f523047d84,0x32caab7b40c72493 + .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c + .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a + .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817 + .quad 0 // terminator +___ +$code.=<<___ if ($SZ==4); + .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5 + .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5 + .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3 + .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174 + .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc + .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da + .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7 + .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967 + .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13 + .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85 + .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3 + .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070 + .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5 + .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3 + .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 + .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 + .long 0 //terminator +___ +$code.=<<___; +.size K$BITS,.-K$BITS +.align 3 +.LOPENSSL_armcap_P: + .quad OPENSSL_armcap_P-. +.asciz "SHA$BITS block transform for ARMv8, CRYPTOGAMS by " +.align 2 +___ + +if ($SZ==4) { +my $Ktbl="x3"; + +my ($ABCD,$EFGH,$abcd)=map("v$_.16b",(0..2)); +my @MSG=map("v$_.16b",(4..7)); +my ($W0,$W1)=("v16.4s","v17.4s"); +my ($ABCD_SAVE,$EFGH_SAVE)=("v18.16b","v19.16b"); + +$code.=<<___; +.type sha256_block_armv8,%function +.align 6 +sha256_block_armv8: +.Lv8_entry: + stp x29,x30,[sp,#-16]! + add x29,sp,#0 + + ld1.32 {$ABCD,$EFGH},[$ctx] + adr $Ktbl,K256 + +.Loop_hw: + ld1 {@MSG[0]-@MSG[3]},[$inp],#64 + sub $num,$num,#1 + ld1.32 {$W0},[$Ktbl],#16 + rev32 @MSG[0],@MSG[0] + rev32 @MSG[1],@MSG[1] + rev32 @MSG[2],@MSG[2] + rev32 @MSG[3],@MSG[3] + orr $ABCD_SAVE,$ABCD,$ABCD // offload + orr $EFGH_SAVE,$EFGH,$EFGH +___ +for($i=0;$i<12;$i++) { +$code.=<<___; + ld1.32 {$W1},[$Ktbl],#16 + add.i32 $W0,$W0,@MSG[0] + sha256su0 @MSG[0],@MSG[1] + orr $abcd,$ABCD,$ABCD + sha256h $ABCD,$EFGH,$W0 + sha256h2 $EFGH,$abcd,$W0 + sha256su1 @MSG[0],@MSG[2],@MSG[3] +___ + ($W0,$W1)=($W1,$W0); push(@MSG,shift(@MSG)); +} +$code.=<<___; + ld1.32 {$W1},[$Ktbl],#16 + add.i32 $W0,$W0,@MSG[0] + orr $abcd,$ABCD,$ABCD + sha256h $ABCD,$EFGH,$W0 + sha256h2 $EFGH,$abcd,$W0 + + ld1.32 {$W0},[$Ktbl],#16 + add.i32 $W1,$W1,@MSG[1] + orr $abcd,$ABCD,$ABCD + sha256h $ABCD,$EFGH,$W1 + sha256h2 $EFGH,$abcd,$W1 + + ld1.32 {$W1},[$Ktbl] + add.i32 $W0,$W0,@MSG[2] + sub $Ktbl,$Ktbl,#$rounds*$SZ-16 // rewind + orr $abcd,$ABCD,$ABCD + sha256h $ABCD,$EFGH,$W0 + sha256h2 $EFGH,$abcd,$W0 + + add.i32 $W1,$W1,@MSG[3] + orr $abcd,$ABCD,$ABCD + sha256h $ABCD,$EFGH,$W1 + sha256h2 $EFGH,$abcd,$W1 + + add.i32 $ABCD,$ABCD,$ABCD_SAVE + add.i32 $EFGH,$EFGH,$EFGH_SAVE + + cbnz $num,.Loop_hw + + st1.32 {$ABCD,$EFGH},[$ctx] + + ldr x29,[sp],#16 + ret +.size sha256_block_armv8,.-sha256_block_armv8 +___ +} + +$code.=<<___; +.comm OPENSSL_armcap_P,4,4 +___ + +{ my %opcode = ( + "sha256h" => 0x5e004000, "sha256h2" => 0x5e005000, + "sha256su0" => 0x5e282800, "sha256su1" => 0x5e006000 ); + + sub unsha256 { + my ($mnemonic,$arg)=@_; + + $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o + && + sprintf ".inst\t0x%08x\t//%s %s", + $opcode{$mnemonic}|$1|($2<<5)|($3<<16), + $mnemonic,$arg; + } +} + +foreach(split("\n",$code)) { + + s/\`([^\`]*)\`/eval($1)/geo; + + s/\b(sha256\w+)\s+([qv].*)/unsha256($1,$2)/geo; + + s/\.\w?32\b//o and s/\.16b/\.4s/go; + m/(ld|st)1[^\[]+\[0\]/o and s/\.4s/\.s/go; + + print $_,"\n"; +} + +close STDOUT;