mirror of
https://github.com/oxen-io/session-android.git
synced 2024-12-27 02:07:42 +00:00
55 lines
2.2 KiB
Plaintext
55 lines
2.2 KiB
Plaintext
|
|
||
|
|
libdes, Version 4.01 10-Jan-97
|
||
|
|
|
||
|
|
Copyright (c) 1997, Eric Young
|
||
|
|
All rights reserved.
|
||
|
|
|
||
|
|
This program is free software; you can redistribute it and/or modify
|
||
|
|
it under the terms specified in COPYRIGHT.
|
||
|
|
|
||
|
|
--
|
||
|
|
The primary ftp site for this library is
|
||
|
|
ftp://ftp.psy.uq.oz.au/pub/Crypto/DES/libdes-x.xx.tar.gz
|
||
|
|
libdes is now also shipped with SSLeay. Primary ftp site of
|
||
|
|
ftp://ftp.psy.uq.oz.au/pub/Crypto/SSL/SSLeay-x.x.x.tar.gz
|
||
|
|
|
||
|
|
The best way to build this library is to build it as part of SSLeay.
|
||
|
|
|
||
|
|
This kit builds a DES encryption library and a DES encryption program.
|
||
|
|
It supports ecb, cbc, ofb, cfb, triple ecb, triple cbc, triple ofb,
|
||
|
|
triple cfb, desx, and MIT's pcbc encryption modes and also has a fast
|
||
|
|
implementation of crypt(3).
|
||
|
|
It contains support routines to read keys from a terminal,
|
||
|
|
generate a random key, generate a key from an arbitrary length string,
|
||
|
|
read/write encrypted data from/to a file descriptor.
|
||
|
|
|
||
|
|
The implementation was written so as to conform with the manual entry
|
||
|
|
for the des_crypt(3) library routines from MIT's project Athena.
|
||
|
|
|
||
|
|
destest should be run after compilation to test the des routines.
|
||
|
|
rpw should be run after compilation to test the read password routines.
|
||
|
|
The des program is a replacement for the sun des command. I believe it
|
||
|
|
conforms to the sun version.
|
||
|
|
|
||
|
|
The Imakefile is setup for use in the kerberos distribution.
|
||
|
|
|
||
|
|
These routines are best compiled with gcc or any other good
|
||
|
|
optimising compiler.
|
||
|
|
Just turn you optimiser up to the highest settings and run destest
|
||
|
|
after the build to make sure everything works.
|
||
|
|
|
||
|
|
I believe these routines are close to the fastest and most portable DES
|
||
|
|
routines that use small lookup tables (4.5k) that are publicly available.
|
||
|
|
The fcrypt routine is faster than ufc's fcrypt (when compiling with
|
||
|
|
gcc2 -O2) on the sparc 2 (1410 vs 1270) but is not so good on other machines
|
||
|
|
(on a sun3/260 168 vs 336). It is a function of CPU on chip cache size.
|
||
|
|
[ 10-Jan-97 and a function of an incorrect speed testing program in
|
||
|
|
ufc which gave much better test figures that reality ].
|
||
|
|
|
||
|
|
It is worth noting that on sparc and Alpha CPUs, performance of the DES
|
||
|
|
library can vary by upto %10 due to the positioning of files after application
|
||
|
|
linkage.
|
||
|
|
|
||
|
|
Eric Young (eay@cryptsoft.com)
|
||
|
|
|