1 /* crypto/des/ede_enc.c */
2 /* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@mincom.oz.au).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@mincom.oz.au).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@mincom.oz.au)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@mincom.oz.au)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
61 void des_ede3_cbc_encrypt(input
, output
, length
, ks1
, ks2
, ks3
, ivec
, encrypt
)
71 register DES_LONG tin0
,tin1
;
72 register DES_LONG tout0
,tout1
,xor0
,xor1
;
73 register unsigned char *in
,*out
;
74 register long l
=length
;
78 in
=(unsigned char *)input
;
79 out
=(unsigned char *)output
;
80 iv
=(unsigned char *)ivec
;
86 for (l
-=8; l
>=0; l
-=8)
95 des_encrypt3((DES_LONG
*)tin
,ks1
,ks2
,ks3
);
104 c2ln(in
,tin0
,tin1
,l
+8);
110 des_encrypt3((DES_LONG
*)tin
,ks1
,ks2
,ks3
);
117 iv
=(unsigned char *)ivec
;
123 register DES_LONG t0
,t1
;
127 for (l
-=8; l
>=0; l
-=8)
137 des_decrypt3((DES_LONG
*)tin
,ks1
,ks2
,ks3
);
158 des_decrypt3((DES_LONG
*)tin
,ks1
,ks2
,ks3
);
164 l2cn(tout0
,tout1
,out
,l
+8);
168 iv
=(unsigned char *)ivec
;
172 tin0
=tin1
=tout0
=tout1
=xor0
=xor1
=0;
176 #ifdef undef /* MACRO */
177 void des_ede2_cbc_encrypt(input
, output
, length
, ks1
, ks2
, ivec
, enc
)
179 des_cblock (*output
);
181 des_key_schedule ks1
;
182 des_key_schedule ks2
;
186 des_ede3_cbc_encrypt(input
,output
,length
,ks1
,ks2
,ks1
,ivec
,enc
);