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openssl/crypto/des
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Richard Levitte 62dc5aad06 Introduce the possibility to access global variables through 
functions on platform were that's the best way to handle exporting
global variables in shared libraries.  To enable this functionality,
one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
"OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
is normally done by Configure or something similar).

To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
in the source file (foo.c) like this:

	OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
	OPENSSL_IMPLEMENT_GLOBAL(double,bar);

To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:

	OPENSSL_DECLARE_GLOBAL(int,foo);
	#define foo OPENSSL_GLOBAL_REF(foo)
	OPENSSL_DECLARE_GLOBAL(double,bar);
	#define bar OPENSSL_GLOBAL_REF(bar)

The #defines are very important, and therefore so is including the
header file everywere where the defined globals are used.

The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
of ASN.1 items, but that structure is a bt different.

The largest change is in util/mkdef.pl which has been enhanced with
better and easier to understand logic to choose which symbols should
go into the Windows .def files as well as a number of fixes and code
cleanup (among others, algorithm keywords are now sorted
lexicographically to avoid constant rewrites).
2001-03-02 10:38:19 +00:00
..
asm
Remove Win32 assembler files. They are always rebuilt (with some
2000-03-13 08:04:20 +00:00
t
Import of old SSLeay release: SSLeay 0.8.1b
1998-12-21 10:52:47 +00:00
times
Import of old SSLeay release: SSLeay 0.8.1b
1998-12-21 10:52:47 +00:00
.cvsignore
The des app.
1999-06-08 20:11:02 +00:00
cbc3_enc.c
Compile pkcs7 and des apps.
1999-08-13 18:04:04 +00:00
cbc_cksm.c
Change type of various DES function arguments from des_cblock
1999-05-16 12:26:16 +00:00
cbc_enc.c
Unify DES library: ncbc_enc.c wasn't used, but its content was almost
1999-06-09 17:28:30 +00:00
cfb64ede.c
Change type of various DES function arguments from des_cblock
1999-05-16 12:26:16 +00:00
cfb64enc.c
Change type of various DES function arguments from des_cblock
1999-05-16 12:26:16 +00:00
cfb_enc.c
Change type of various DES function arguments from des_cblock
1999-05-16 12:26:16 +00:00
COPYRIGHT
Import of old SSLeay release: SSLeay 0.8.1b
1998-12-21 10:52:47 +00:00
des3s.cpp
Submitted by:
1999-04-23 23:28:26 +00:00
des_enc.c
More DES library cleanups: remove references to srand/rand
1999-07-15 23:47:02 +00:00
des_locl.h
Use e_os2.h rather than opensslconf.h, since some needed macros are
2001-02-22 14:37:50 +00:00
des_opts.c
Use new-style system-id macros everywhere possible. I hope I haven't
2001-02-20 08:13:47 +00:00
des_ver.h
If OPENSSL_BUILD_SHLIBCRYPTO (for files that end up as libcrypto
2000-12-31 00:23:17 +00:00
des-lib.com
OpenVMS catches up.
2001-02-20 17:14:30 +00:00
des.c
Use new-style system-id macros everywhere possible. I hope I haven't
2001-02-20 08:13:47 +00:00
des.h
Introduce the possibility to access global variables through
2001-03-02 10:38:19 +00:00
DES.pm
Import of old SSLeay release: SSLeay 0.8.1b
1998-12-21 10:52:47 +00:00
des.pod
change manpages to pod. Contents are not up to date!
2000-03-18 17:55:09 +00:00
DES.xs
Import of old SSLeay release: SSLeay 0.8.1b
1998-12-21 10:52:47 +00:00
dess.cpp
Submitted by:
1999-04-23 23:28:26 +00:00
destest.c
Use e_os2.h rather than opensslconf.h, since some needed macros are
2001-02-22 14:37:50 +00:00
ecb3_enc.c
Change type of various DES function arguments from des_cblock
1999-05-16 12:26:16 +00:00
ecb_enc.c
Remove old libdes version number.
1999-06-09 16:26:50 +00:00
ede_cbcm_enc.c
Make all configuration macros available for application by making
2001-02-19 16:06:34 +00:00
enc_read.c
Introduce the possibility to access global variables through
2001-03-02 10:38:19 +00:00
enc_writ.c
There have been a number of complaints from a number of sources that names
2000-06-01 22:19:21 +00:00
fcrypt_b.c
bug fix.
2000-03-09 17:07:19 +00:00
fcrypt.c
cleanup.
2000-03-19 02:10:17 +00:00
FILES
Import of old SSLeay release: SSLeay 0.8.1b
1998-12-21 10:52:47 +00:00
Imakefile
Import of old SSLeay release: SSLeay 0.8.1b
1998-12-21 10:52:47 +00:00
INSTALL
Import of old SSLeay release: SSLeay 0.9.0b
1998-12-21 10:56:39 +00:00
KERBEROS
Import of old SSLeay release: SSLeay 0.8.1b
1998-12-21 10:52:47 +00:00
makefile.bc
Import of old SSLeay release: SSLeay 0.8.1b
1998-12-21 10:52:47 +00:00
Makefile.ssl
e_os.h does not belong with the exported headers. Do not put it there
2001-02-22 14:45:02 +00:00
ncbc_enc.c
Insert a comment: This is one of the few files in this directory
2000-03-14 14:33:11 +00:00
ofb64ede.c
Change type of various DES function arguments from des_cblock
1999-05-16 12:26:16 +00:00
ofb64enc.c
Change type of various DES function arguments from des_cblock
1999-05-16 12:26:16 +00:00
ofb_enc.c
Change type of various DES function arguments from des_cblock
1999-05-16 12:26:16 +00:00
options.txt
Import of old SSLeay release: SSLeay 0.9.0b
1998-12-21 10:56:39 +00:00
pcbc_enc.c
Change type of various DES function arguments from des_cblock
1999-05-16 12:26:16 +00:00
qud_cksm.c
On Unicos, shorts are 8 bytes, so instead, use a structure with 2 32-bit ints, just as in destest.c
2000-08-03 21:58:56 +00:00
rand_key.c
cleanup.
2000-03-19 02:10:17 +00:00
read2pwd.c
Change type of various DES function arguments from des_cblock
1999-05-16 12:26:16 +00:00
read_pwd.c
Use e_os2.h rather than opensslconf.h, since some needed macros are
2001-02-22 14:37:50 +00:00
README
Import of old SSLeay release: SSLeay 0.8.1b
1998-12-21 10:52:47 +00:00
rpc_des.h
Import of old SSLeay release: SSLeay 0.9.0b
1998-12-21 10:56:39 +00:00
rpc_enc.c
Add functions des_set_key_checked, des_set_key_unchecked.
1999-12-03 20:24:21 +00:00
rpw.c
Casts.
1999-06-08 16:25:21 +00:00
set_key.c
Introduce the possibility to access global variables through
2001-03-02 10:38:19 +00:00
speed.c
Use new-style system-id macros everywhere possible. I hope I haven't
2001-02-20 08:13:47 +00:00
spr.h
Use OPENSSL_GLOBAL, OPENSSL_EXTERN instead of GLOBAL and EXTERN.
1999-05-15 14:38:10 +00:00
str2key.c
Source code cleanups: Use void * rather than char * in lhash,
2000-01-30 22:20:28 +00:00
typemap
Import of old SSLeay release: SSLeay 0.8.1b
1998-12-21 10:52:47 +00:00
VERSION
Import of old SSLeay release: SSLeay 0.9.1b (unreleased)
1998-12-21 11:00:56 +00:00
xcbc_enc.c
Change type of various DES function arguments from des_cblock
1999-05-16 12:26:16 +00:00

README 

		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)