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413 lines
16 KiB
Plaintext
413 lines
16 KiB
Plaintext
Fixed the weak key values which were wrong :-(
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Defining SIGACTION causes sigaction() to be used instead of signal().
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SIGUSR1/SIGUSR2 are no longer mapped in the read tty stuff because it
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can cause problems. This should hopefully not affect normal
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applications.
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Version 4.04
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Fixed a few tests in destest. Also added x86 assember for
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des_ncbc_encrypt() which is the standard cbc mode function.
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This makes a very very large performace difference.
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Ariel Glenn ariel@columbia.edu reports that the terminal
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'turn echo off' can return (errno == EINVAL) under solaris
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when redirection is used. So I now catch that as well as ENOTTY.
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Version 4.03
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Left a static out of enc_write.c, which caused to buffer to be
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continiously malloc()ed. Does anyone use these functions? I keep
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on feeling like removing them since I only had these in there
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for a version of kerberised login. Anyway, this was pointed out
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by Theo de Raadt <deraadt@cvs.openbsd.org>
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The 'n' bit ofb code was wrong, it was not shifting the shift
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register. It worked correctly for n == 64. Thanks to
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Gigi Ankeny <Gigi.Ankeny@Eng.Sun.COM> for pointing this one out.
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Version 4.02
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I was doing 'if (memcmp(weak_keys[i],key,sizeof(key)) == 0)'
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when checking for weak keys which is wrong :-(, pointed out by
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Markus F.X.J. Oberhumer <markus.oberhumer@jk.uni-linz.ac.at>.
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Version 4.01
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Even faster inner loop in the DES assembler for x86 and a modification
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for IP/FP which is faster on x86. Both of these changes are
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from Svend Olaf Mikkelsen <svolaf@inet.uni-c.dk>. His
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changes make the assembler run %40 faster on a pentium. This is just
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a case of getting the instruction sequence 'just right'.
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All credit to 'Svend' :-)
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Quite a few special x86 'make' targets.
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A libdes-l (lite) distribution.
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Version 4.00
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After a bit of a pause, I'll up the major version number since this
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is mostly a performace release. I've added x86 assembler and
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added more options for performance. A %28 speedup for gcc
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on a pentium and the assembler is a %50 speedup.
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MIPS CPU's, sparc and Alpha are the main CPU's with speedups.
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Run des_opts to work out which options should be used.
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DES_RISC1/DES_RISC2 use alternative inner loops which use
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more registers but should give speedups on any CPU that does
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dual issue (pentium). DES_UNROLL unrolls the inner loop,
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which costs in code size.
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Version 3.26
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I've finally removed one of the shifts in D_ENCRYPT. This
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meant I've changed the des_SPtrans table (spr.h), the set_key()
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function and some things in des_enc.c. This has definitly
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made things faster :-). I've known about this one for some
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time but I've been too lazy to follow it up :-).
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Noticed that in the D_ENCRYPT() macro, we can just do L^=(..)^(..)^..
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instead of L^=((..)|(..)|(..).. This should save a register at
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least.
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Assember for x86. The file to replace is des_enc.c, which is replaced
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by one of the assembler files found in asm. Look at des/asm/readme
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for more info.
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/* Modification to fcrypt so it can be compiled to support
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HPUX 10.x's long password format, define -DLONGCRYPT to use this.
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Thanks to Jens Kupferschmidt <bt1cu@hpboot.rz.uni-leipzig.de>. */
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SIGWINCH case put in des_read_passwd() so the function does not
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'exit' if this function is recieved.
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Version 3.25 17/07/96
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Modified read_pwd.c so that stdin can be read if not a tty.
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Thanks to Jeff Barber <jeffb@issl.atl.hp.com> for the patches.
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des_init_random_number_generator() shortened due to VMS linker
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limits.
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Added RSA's DESX cbc mode. It is a form of cbc encryption, with 2
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8 byte quantites xored before and after encryption.
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des_xcbc_encryption() - the name is funny to preserve the des_
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prefix on all functions.
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Version 3.24 20/04/96
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The DES_PTR macro option checked and used by SSLeay configuration
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Version 3.23 11/04/96
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Added DES_LONG. If defined to 'unsigned int' on the DEC Alpha,
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it gives a %20 speedup :-)
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Fixed the problem with des.pl under perl5. The patches were
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sent by Ed Kubaitis (ejk@uiuc.edu).
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if fcrypt.c, changed values to handle illegal salt values the way
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normal crypt() implementations do. Some programs apparently use
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them :-(. The patch was sent by Bjorn Gronvall <bg@sics.se>
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Version 3.22 29/11/95
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Bug in des(1), an error with the uuencoding stuff when the
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'data' is small, thanks to Geoff Keating <keagchon@mehta.anu.edu.au>
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for the patch.
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Version 3.21 22/11/95
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After some emailing back and forth with
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Colin Plumb <colin@nyx10.cs.du.edu>, I've tweaked a few things
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and in a future version I will probably put in some of the
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optimisation he suggested for use with the DES_USE_PTR option.
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Extra routines from Mark Murray <mark@grondar.za> for use in
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freeBSD. They mostly involve random number generation for use
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with kerberos. They involve evil machine specific system calls
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etc so I would normally suggest pushing this stuff into the
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application and/or using RAND_seed()/RAND_bytes() if you are
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using this DES library as part of SSLeay.
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Redone the read_pw() function so that it is cleaner and
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supports termios, thanks to Sameer Parekh <sameer@c2.org>
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for the initial patches for this.
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Renamed 3ecb_encrypt() to ecb3_encrypt(). This has been
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done just to make things more consistent.
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I have also now added triple DES versions of cfb and ofb.
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Version 3.20
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Damn, Damn, Damn, as pointed out by Mike_Spreitzer.PARC@xerox.com,
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my des_random_seed() function was only copying 4 bytes of the
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passed seed into the init structure. It is now fixed to copy 8.
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My own suggestion is to used something like MD5 :-)
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Version 3.19
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While looking at my code one day, I though, why do I keep on
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calling des_encrypt(in,out,ks,enc) when every function that
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calls it has in and out the same. So I dropped the 'out'
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parameter, people should not be using this function.
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Version 3.18 30/08/95
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Fixed a few bit with the distribution and the filenames.
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3.17 had been munged via a move to DOS and back again.
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NO CODE CHANGES
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Version 3.17 14/07/95
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Fixed ede3 cbc which I had broken in 3.16. I have also
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removed some unneeded variables in 7-8 of the routines.
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Version 3.16 26/06/95
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Added des_encrypt2() which does not use IP/FP, used by triple
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des routines. Tweaked things a bit elsewhere. %13 speedup on
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sparc and %6 on a R4400 for ede3 cbc mode.
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Version 3.15 06/06/95
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Added des_ncbc_encrypt(), it is des_cbc mode except that it is
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'normal' and copies the new iv value back over the top of the
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passed parameter.
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CHANGED des_ede3_cbc_encrypt() so that it too now overwrites
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the iv. THIS WILL BREAK EXISTING CODE, but since this function
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only new, I feel I can change it, not so with des_cbc_encrypt :-(.
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I need to update the documentation.
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Version 3.14 31/05/95
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New release upon the world, as part of my SSL implementation.
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New copyright and usage stuff. Basically free for all to use
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as long as you say it came from me :-)
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Version 3.13 31/05/95
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A fix in speed.c, if HZ is not defined, I set it to 100.0
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which is reasonable for most unixes except SunOS 4.x.
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I now have a #ifdef sun but timing for SunOS 4.x looked very
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good :-(. At my last job where I used SunOS 4.x, it was
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defined to be 60.0 (look at the old INSTALL documentation), at
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the last release had it changed to 100.0 since I now work with
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Solaris2 and SVR4 boxes.
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Thanks to Rory Chisholm <rchishol@math.ethz.ch> for pointing this
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one out.
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Version 3.12 08/05/95
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As pointed out by The Crypt Keeper <tck@bend.UCSD.EDU>,
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my D_ENCRYPT macro in crypt() had an un-necessary variable.
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It has been removed.
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Version 3.11 03/05/95
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Added des_ede3_cbc_encrypt() which is cbc mode des with 3 keys
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and one iv. It is a standard and I needed it for my SSL code.
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It makes more sense to use this for triple DES than
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3cbc_encrypt(). I have also added (or should I say tested :-)
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cfb64_encrypt() which is cfb64 but it will encrypt a partial
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number of bytes - 3 bytes in 3 bytes out. Again this is for
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my SSL library, as a form of encryption to use with SSL
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telnet.
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Version 3.10 22/03/95
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Fixed a bug in 3cbc_encrypt() :-(. When making repeated calls
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to cbc3_encrypt, the 2 iv values that were being returned to
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be used in the next call were reversed :-(.
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Many thanks to Bill Wade <wade@Stoner.COM> for pointing out
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this error.
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Version 3.09 01/02/95
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Fixed des_random_key to far more random, it was rather feeble
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with regards to picking the initial seed. The problem was
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pointed out by Olaf Kirch <okir@monad.swb.de>.
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Version 3.08 14/12/94
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Added Makefile.PL so libdes can be built into perl5.
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Changed des_locl.h so RAND is always defined.
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Version 3.07 05/12/94
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Added GNUmake and stuff so the library can be build with
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glibc.
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Version 3.06 30/08/94
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Added rpc_enc.c which contains _des_crypt. This is for use in
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secure_rpc v 4.0
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Finally fixed the cfb_enc problems.
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Fixed a few parameter parsing bugs in des (-3 and -b), thanks
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to Rob McMillan <R.McMillan@its.gu.edu.au>
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Version 3.05 21/04/94
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for unsigned long l; gcc does not produce ((l>>34) == 0)
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This causes bugs in cfb_enc.
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Thanks to Hadmut Danisch <danisch@ira.uka.de>
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Version 3.04 20/04/94
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Added a version number to des.c and libdes.a
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Version 3.03 12/01/94
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Fixed a bug in non zero iv in 3cbc_enc.
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Version 3.02 29/10/93
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I now work in a place where there are 6+ architectures and 14+
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OS versions :-).
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Fixed TERMIO definition so the most sys V boxes will work :-)
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Release upon comp.sources.misc
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Version 3.01 08/10/93
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Added des_3cbc_encrypt()
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Version 3.00 07/10/93
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Fixed up documentation.
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quad_cksum definitely compatible with MIT's now.
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Version 2.30 24/08/93
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Triple DES now defaults to triple cbc but can do triple ecb
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with the -b flag.
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Fixed some MSDOS uuen/uudecoding problems, thanks to
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Added prototypes.
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Version 2.22 29/06/93
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Fixed a bug in des_is_weak_key() which stopped it working :-(
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thanks to engineering@MorningStar.Com.
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Version 2.21 03/06/93
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des(1) with no arguments gives quite a bit of help.
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Added -c (generate ckecksum) flag to des(1).
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Added -3 (triple DES) flag to des(1).
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Added cfb and ofb routines to the library.
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Version 2.20 11/03/93
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Added -u (uuencode) flag to des(1).
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I have been playing with byte order in quad_cksum to make it
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compatible with MIT's version. All I can say is avid this
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function if possible since MIT's output is endian dependent.
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Version 2.12 14/10/92
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Added MSDOS specific macro in ecb_encrypt which gives a %70
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speed up when the code is compiled with turbo C.
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Version 2.11 12/10/92
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Speedup in set_key (recoding of PC-1)
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I now do it in 47 simple operations, down from 60.
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Thanks to John Fletcher (john_fletcher@lccmail.ocf.llnl.gov)
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for motivating me to look for a faster system :-)
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The speedup is probably less that 1% but it is still 13
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instructions less :-).
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Version 2.10 06/10/92
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The code now works on the 64bit ETA10 and CRAY without modifications or
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#defines. I believe the code should work on any machine that
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defines long, int or short to be 8 bytes long.
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Thanks to Shabbir J. Safdar (shabby@mentor.cc.purdue.edu)
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for helping me fix the code to run on 64bit machines (he had
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access to an ETA10).
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Thanks also to John Fletcher <john_fletcher@lccmail.ocf.llnl.gov>
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for testing the routines on a CRAY.
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read_password.c has been renamed to read_passwd.c
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string_to_key.c has been renamed to string2key.c
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Version 2.00 14/09/92
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Made mods so that the library should work on 64bit CPU's.
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Removed all my uchar and ulong defs. To many different
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versions of unix define them in their header files in too many
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different combinations :-)
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IRIX - Sillicon Graphics mods (mostly in read_password.c).
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Thanks to Andrew Daviel (advax@erich.triumf.ca)
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Version 1.99 26/08/92
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Fixed a bug or 2 in enc_read.c
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Fixed a bug in enc_write.c
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Fixed a pseudo bug in fcrypt.c (very obscure).
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Version 1.98 31/07/92
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Support for the ETA10. This is a strange machine that defines
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longs and ints as 8 bytes and shorts as 4 bytes.
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Since I do evil things with long * that assume that they are 4
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bytes. Look in the Makefile for the option to compile for
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this machine. quad_cksum appears to have problems but I
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will don't have the time to fix it right now, and this is not
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a function that uses DES and so will not effect the main uses
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of the library.
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Version 1.97 20/05/92 eay
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Fixed the Imakefile and made some changes to des.h to fix some
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problems when building this package with Kerberos v 4.
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Version 1.96 18/05/92 eay
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Fixed a small bug in string_to_key() where problems could
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occur if des_check_key was set to true and the string
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generated a weak key.
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Patch2 posted to comp.sources.misc
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Version 1.95 13/05/92 eay
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Added an alternative version of the D_ENCRYPT macro in
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ecb_encrypt and fcrypt. Depending on the compiler, one version or the
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other will be faster. This was inspired by
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Dana How <how@isl.stanford.edu>, and her pointers about doing the
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*(ulong *)((uchar *)ptr+(value&0xfc))
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vs
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ptr[value&0x3f]
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to stop the C compiler doing a <<2 to convert the long array index.
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Version 1.94 05/05/92 eay
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Fixed an incompatibility between my string_to_key and the MIT
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version. When the key is longer than 8 chars, I was wrapping
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with a different method. To use the old version, define
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OLD_STR_TO_KEY in the makefile. Thanks to
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viktor@newsu.shearson.com (Viktor Dukhovni).
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Version 1.93 28/04/92 eay
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Fixed the VMS mods so that echo is now turned off in
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read_password. Thanks again to brennan@coco.cchs.su.oz.AU.
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MSDOS support added. The routines can be compiled with
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Turbo C (v2.0) and MSC (v5.1). Make sure MSDOS is defined.
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Patch1 posted to comp.sources.misc
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Version 1.92 13/04/92 eay
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Changed D_ENCRYPT so that the rotation of R occurs outside of
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the loop. This required rotating all the longs in sp.h (now
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called spr.h). Thanks to Richard Outerbridge <71755.204@CompuServe.COM>
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speed.c has been changed so it will work without SIGALRM. If
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times(3) is not present it will try to use ftime() instead.
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Version 1.91 08/04/92 eay
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Added -E/-D options to des(1) so it can use string_to_key.
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Added SVR4 mods suggested by witr@rwwa.COM
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Added VMS mods suggested by brennan@coco.cchs.su.oz.AU. If
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anyone knows how to turn of tty echo in VMS please tell me or
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implement it yourself :-).
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Changed FILE *IN/*OUT to *DES_IN/*DES_OUT since it appears VMS
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does not like IN/OUT being used.
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Libdes posted to comp.sources.misc
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Version 1.9 24/03/92 eay
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Now contains a fast small crypt replacement.
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Added des(1) command.
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Added des_rw_mode so people can use cbc encryption with
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enc_read and enc_write.
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Version 1.8 15/10/91 eay
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Bug in cbc_cksum.
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Many thanks to Keith Reynolds (keithr@sco.COM) for pointing this
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one out.
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Version 1.7 24/09/91 eay
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Fixed set_key :-)
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set_key is 4 times faster and takes less space.
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There are a few minor changes that could be made.
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Version 1.6 19/09/1991 eay
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Finally go IP and FP finished.
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Now I need to fix set_key.
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This version is quite a bit faster that 1.51
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Version 1.52 15/06/1991 eay
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20% speedup in ecb_encrypt by changing the E bit selection
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to use 2 32bit words. This also required modification of the
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sp table. There is still a way to speedup the IP and IP-1
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(hints from outer@sq.com) still working on this one :-(.
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Version 1.51 07/06/1991 eay
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Faster des_encrypt by loop unrolling
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Fixed bug in quad_cksum.c (thanks to hughes@logos.ucs.indiana.edu)
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Version 1.50 28/05/1991 eay
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Optimised the code a bit more for the sparc. I have improved the
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speed of the inner des_encrypt by speeding up the initial and
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final permutations.
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Version 1.40 23/10/1990 eay
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Fixed des_random_key, it did not produce a random key :-(
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Version 1.30 2/10/1990 eay
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Have made des_quad_cksum the same as MIT's, the full package
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should be compatible with MIT's
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Have tested on a DECstation 3100
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Still need to fix des_set_key (make it faster).
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Does des_cbc_encrypts at 70.5k/sec on a 3100.
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Version 1.20 18/09/1990 eay
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Fixed byte order dependencies.
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Fixed (I hope) all the word alignment problems.
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Speedup in des_ecb_encrypt.
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Version 1.10 11/09/1990 eay
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Added des_enc_read and des_enc_write.
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Still need to fix des_quad_cksum.
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Still need to document des_enc_read and des_enc_write.
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Version 1.00 27/08/1990 eay
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