Line data    Source code

       1             : /*      $OpenBSD: ecb3_enc.c,v 1.3 2013/11/18 18:49:53 brad Exp $       */
       2             : 
       3             : /* lib/des/ecb3_enc.c */
       4             : /* Copyright (C) 1995 Eric Young (eay@mincom.oz.au)
       5             :  * All rights reserved.
       6             :  * 
       7             :  * This file is part of an SSL implementation written
       8             :  * by Eric Young (eay@mincom.oz.au).
       9             :  * The implementation was written so as to conform with Netscapes SSL
      10             :  * specification.  This library and applications are
      11             :  * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
      12             :  * as long as the following conditions are aheared to.
      13             :  * 
      14             :  * Copyright remains Eric Young's, and as such any Copyright notices in
      15             :  * the code are not to be removed.  If this code is used in a product,
      16             :  * Eric Young should be given attribution as the author of the parts used.
      17             :  * This can be in the form of a textual message at program startup or
      18             :  * in documentation (online or textual) provided with the package.
      19             :  * 
      20             :  * Redistribution and use in source and binary forms, with or without
      21             :  * modification, are permitted provided that the following conditions
      22             :  * are met:
      23             :  * 1. Redistributions of source code must retain the copyright
      24             :  *    notice, this list of conditions and the following disclaimer.
      25             :  * 2. Redistributions in binary form must reproduce the above copyright
      26             :  *    notice, this list of conditions and the following disclaimer in the
      27             :  *    documentation and/or other materials provided with the distribution.
      28             :  * 3. All advertising materials mentioning features or use of this software
      29             :  *    must display the following acknowledgement:
      30             :  *    This product includes software developed by Eric Young (eay@mincom.oz.au)
      31             :  * 
      32             :  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
      33             :  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      34             :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      35             :  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
      36             :  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      37             :  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      38             :  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      39             :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      40             :  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      41             :  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      42             :  * SUCH DAMAGE.
      43             :  * 
      44             :  * The licence and distribution terms for any publically available version or
      45             :  * derivative of this code cannot be changed.  i.e. this code cannot simply be
      46             :  * copied and put under another distribution licence
      47             :  * [including the GNU Public Licence.]
      48             :  */
      49             : 
      50             : #include "des_locl.h"
      51             : 
      52             : void
      53           0 : des_ecb3_encrypt(des_cblock (*input), des_cblock (*output),
      54             :     des_key_schedule ks1, des_key_schedule ks2, des_key_schedule ks3,
      55             :     int encrypt)
      56             : {
      57             :         register u_int32_t l0, l1;
      58             :         register unsigned char *in, *out;
      59           0 :         u_int32_t ll[2];
      60             : 
      61           0 :         in = (unsigned char *) input;
      62           0 :         out = (unsigned char *) output;
      63           0 :         c2l(in, l0);
      64           0 :         c2l(in, l1);
      65           0 :         IP(l0, l1);
      66           0 :         ll[0] = l0;
      67           0 :         ll[1] = l1;
      68           0 :         des_encrypt2(ll, ks1, encrypt);
      69           0 :         des_encrypt2(ll, ks2, !encrypt);
      70           0 :         des_encrypt2(ll, ks3, encrypt);
      71           0 :         l0 = ll[0];
      72           0 :         l1 = ll[1];
      73           0 :         FP(l1, l0);
      74           0 :         l2c(l0, out);
      75           0 :         l2c(l1, out);
      76           0 : }