sha1-armv4-large.pl: comply with ABI [from HEAD].
[mirror-openssl.git] / crypto / evp / e_cfb_c.c
blob936df55fd8e24eb38c7122768a0d88cf67a22241
1 /* crypto/evp/e_cfb_c.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
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.
8 *
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
25 * are met:
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
51 * SUCH DAMAGE.
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.]
59 #ifndef NO_CAST
61 #include <stdio.h>
62 #include "cryptlib.h"
63 #include "evp.h"
64 #include "objects.h"
66 #ifndef NOPROTO
67 static void cast_cfb_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
68 unsigned char *iv,int enc);
69 static void cast_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
70 unsigned char *in, unsigned int inl);
71 #else
72 static void cast_cfb_init_key();
73 static void cast_cfb_cipher();
74 #endif
76 static EVP_CIPHER cast5_cfb_cipher=
78 NID_cast5_cfb64,
79 1,EVP_CAST5_KEY_SIZE,8,
80 cast_cfb_init_key,
81 cast_cfb_cipher,
82 NULL,
83 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+
84 sizeof((((EVP_CIPHER_CTX *)NULL)->c.cast_ks)),
85 EVP_CIPHER_set_asn1_iv,
86 EVP_CIPHER_get_asn1_iv,
89 EVP_CIPHER *EVP_cast5_cfb()
91 return(&cast5_cfb_cipher);
94 static void cast_cfb_init_key(ctx,key,iv,enc)
95 EVP_CIPHER_CTX *ctx;
96 unsigned char *key;
97 unsigned char *iv;
98 int enc;
100 ctx->num=0;
102 if (iv != NULL)
103 memcpy(&(ctx->oiv[0]),iv,8);
104 memcpy(&(ctx->iv[0]),&(ctx->oiv[0]),8);
105 if (key != NULL)
106 CAST_set_key(&(ctx->c.cast_ks),EVP_CAST5_KEY_SIZE,key);
109 static void cast_cfb_cipher(ctx,out,in,inl)
110 EVP_CIPHER_CTX *ctx;
111 unsigned char *out;
112 unsigned char *in;
113 unsigned int inl;
115 CAST_cfb64_encrypt(
116 in,out,
117 (long)inl, &(ctx->c.cast_ks),
118 &(ctx->iv[0]),
119 &ctx->num,ctx->encrypt);
121 #endif