97 lines
3.5 KiB
C
97 lines
3.5 KiB
C
/* lib/des/rpc_enc.c */
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/* Copyright (C) 1995 Eric Young (eay@mincom.oz.au)
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* All rights reserved.
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*
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* This file is part of an SSL implementation written
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* by Eric Young (eay@mincom.oz.au).
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* The implementation was written so as to conform with Netscapes SSL
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* specification. This library and applications are
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* FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
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* as long as the following conditions are aheared to.
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed. If this code is used in a product,
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* Eric Young should be given attribution as the author of the parts used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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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 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Eric Young (eay@mincom.oz.au)
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include "rpc_des.h"
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#include "des_locl.h"
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#include "version.h"
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#ifndef NOPROTO
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int _des_crypt(char *buf,int len,struct desparams *desp);
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#else
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int _des_crypt();
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#endif
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int _des_crypt(buf, len, desp)
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char *buf;
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int len;
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struct desparams *desp;
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{
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Key_schedule ks;
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int enc;
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des_set_key((des_cblock *)desp->des_key,ks);
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enc=(desp->des_dir == ENCRYPT)?DES_ENCRYPT:DES_DECRYPT;
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if (desp->des_mode == CBC)
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des_ecb_encrypt((des_cblock *)desp->UDES.UDES_buf,
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(des_cblock *)desp->UDES.UDES_buf,ks,enc);
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else
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{
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des_ncbc_encrypt((des_cblock *)desp->UDES.UDES_buf,
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(des_cblock *)desp->UDES.UDES_buf,
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(long)len,ks,
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(des_cblock *)desp->des_ivec,enc);
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#ifdef undef
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/* len will always be %8 if called from common_crypt
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* in secure_rpc.
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* Libdes's cbc encrypt does not copy back the iv,
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* so we have to do it here. */
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/* It does now :-) eay 20/09/95 */
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a=(char *)&(desp->UDES.UDES_buf[len-8]);
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b=(char *)&(desp->des_ivec[0]);
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*(a++)= *(b++); *(a++)= *(b++);
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*(a++)= *(b++); *(a++)= *(b++);
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*(a++)= *(b++); *(a++)= *(b++);
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*(a++)= *(b++); *(a++)= *(b++);
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#endif
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}
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return(1);
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}
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