1 /* crypto/evp/e_cbc_3d.c */
2 /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
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@cryptsoft.com).
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@cryptsoft.com)"
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@cryptsoft.com)"
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.]
65 static void des_cbc_ede_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
66 unsigned char *iv,int enc);
67 static void des_cbc_ede3_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
68 unsigned char *iv,int enc);
69 static void des_cbc_ede_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
70 unsigned char *in, unsigned int inl);
72 static void des_cbc_ede_init_key();
73 static void des_cbc_ede3_init_key();
74 static void des_cbc_ede_cipher();
77 static EVP_CIPHER d_cbc_ede_cipher2=
85 static EVP_CIPHER d_cbc_ede_cipher3=
89 des_cbc_ede3_init_key,
93 EVP_CIPHER *EVP_des_ede_cbc()
95 return(&d_cbc_ede_cipher2);
98 EVP_CIPHER *EVP_des_ede3_cbc()
100 return(&d_cbc_ede_cipher3);
103 static void des_cbc_ede_init_key(ctx,key,iv,enc)
110 memcpy(&(ctx->c.des_ede.oiv[0]),iv,8);
111 memcpy(&(ctx->c.des_ede.iv[0]),&(ctx->c.des_ede.oiv[0]),8);
115 des_set_key((des_cblock *)key,ctx->c.des_ede.ks1);
116 des_set_key((des_cblock *)&(key[8]),ctx->c.des_ede.ks2);
117 memcpy( (char *)ctx->c.des_ede.ks3,
118 (char *)ctx->c.des_ede.ks1,
119 sizeof(ctx->c.des_ede.ks1));
123 static void des_cbc_ede3_init_key(ctx,key,iv,enc)
130 memcpy(&(ctx->c.des_ede.oiv[0]),iv,8);
131 memcpy(&(ctx->c.des_ede.iv[0]),&(ctx->c.des_ede.oiv[0]),8);
135 des_set_key((des_cblock *)key,ctx->c.des_ede.ks1);
136 des_set_key((des_cblock *)&(key[8]),ctx->c.des_ede.ks2);
137 des_set_key((des_cblock *)&(key[16]),ctx->c.des_ede.ks3);
141 static void des_cbc_ede_cipher(ctx,out,in,inl)
147 des_ede3_cbc_encrypt(
148 (des_cblock *)in,(des_cblock *)out,
149 (long)inl, ctx->c.des_ede.ks1,
150 ctx->c.des_ede.ks2,ctx->c.des_ede.ks3,
151 (des_cblock *)&(ctx->c.des_ede.iv[0]),