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c28778abe6
This is by the kind permission of Dave Safford, formerly of TAMU who wrote the original code. Here is an excerpt of the e-mail exchange concerning this issue: Dave Safford wrote: >Nick Sayer wrote: >> Some time ago we spoke about SRA and importing it into FreeBSD. I forgot to >> ask if you had a prefered license boilerplate for the top of the files. It >> has come up recently, and the SRA code in FreeBSD doesn't have one. >I really have no preference - use whatever is most convenient in the >FreeBSD environment. >dave safford This is the standard BSD license with clause 3 removed and clause 4 suitably renumbered. MFC after: 1 day git-svn-id: http://svn0.us-east.freebsd.org/base/head/contrib/telnet@85690 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
73 lines
2.7 KiB
C
73 lines
2.7 KiB
C
/*-
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* Copyright (c) 1991, 1993
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* Dave Safford. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$ */
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*/
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/* header for the des routines that we will use */
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typedef unsigned char byte, DesData[ 8], IdeaData[16];
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#if 0
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typedef unsigned long word, DesKeys[32];
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#else
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#define DesKeys des_key_schedule
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#endif
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#define DES_DECRYPT 0
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#define DES_ENCRYPT 1
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#if 0
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extern void des_fixup_key_parity(); /* (DesData *key) */
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extern int des_key_sched(); /* (DesData *key, DesKeys *m) */
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extern int des_ecb_encrypt(); /* (DesData *src, *dst, DesKeys *m, int mode) */
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extern int des_cbc_encrypt(); /* (char *src, *dst, int length,
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DesKeys *m, DesData *init, int mode) */
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#endif
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/* public key routines */
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/* functions:
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genkeys(char *public, char *secret)
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common_key(char *secret, char *public, desData *deskey)
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where
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char public[HEXKEYBYTES + 1];
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char secret[HEXKEYBYTES + 1];
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*/
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#define HEXMODULUS "d4a0ba0250b6fd2ec626e7efd637df76c716e22d0944b88b"
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#define HEXKEYBYTES 48
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#define KEYSIZE 192
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#define KEYBYTES 24
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#define PROOT 3
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extern void genkeys(char *public, char *secret);
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extern void common_key(char *secret, char *public, IdeaData *common,
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DesData *deskey);
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extern void pk_encode(char *in, char *out, DesData *deskey);
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extern void pk_decode(char *in, char *out, DesData *deskey);
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