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1 : : /* crypto/seed/seed_cfb.c -*- mode:C; c-file-style: "eay" -*- */
2 : : /* ====================================================================
3 : : * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
4 : : *
5 : : * Redistribution and use in source and binary forms, with or without
6 : : * modification, are permitted provided that the following conditions
7 : : * are met:
8 : : *
9 : : * 1. Redistributions of source code must retain the above copyright
10 : : * notice, this list of conditions and the following disclaimer.
11 : : *
12 : : * 2. Redistributions in binary form must reproduce the above copyright
13 : : * notice, this list of conditions and the following disclaimer in
14 : : * the documentation and/or other materials provided with the
15 : : * distribution.
16 : : *
17 : : * 3. All advertising materials mentioning features or use of this
18 : : * software must display the following acknowledgment:
19 : : * "This product includes software developed by the OpenSSL Project
20 : : * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
21 : : *
22 : : * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 : : * endorse or promote products derived from this software without
24 : : * prior written permission. For written permission, please contact
25 : : * openssl-core@openssl.org.
26 : : *
27 : : * 5. Products derived from this software may not be called "OpenSSL"
28 : : * nor may "OpenSSL" appear in their names without prior written
29 : : * permission of the OpenSSL Project.
30 : : *
31 : : * 6. Redistributions of any form whatsoever must retain the following
32 : : * acknowledgment:
33 : : * "This product includes software developed by the OpenSSL Project
34 : : * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35 : : *
36 : : * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 : : * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 : : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 : : * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 : : * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 : : * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 : : * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 : : * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 : : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 : : * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 : : * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 : : * OF THE POSSIBILITY OF SUCH DAMAGE.
48 : : * ====================================================================
49 : : *
50 : : */
51 : : /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
52 : : * All rights reserved.
53 : : *
54 : : * This package is an SSL implementation written
55 : : * by Eric Young (eay@cryptsoft.com).
56 : : * The implementation was written so as to conform with Netscapes SSL.
57 : : *
58 : : * This library is free for commercial and non-commercial use as long as
59 : : * the following conditions are aheared to. The following conditions
60 : : * apply to all code found in this distribution, be it the RC4, RSA,
61 : : * lhash, DES, etc., code; not just the SSL code. The SSL documentation
62 : : * included with this distribution is covered by the same copyright terms
63 : : * except that the holder is Tim Hudson (tjh@cryptsoft.com).
64 : : *
65 : : * Copyright remains Eric Young's, and as such any Copyright notices in
66 : : * the code are not to be removed.
67 : : * If this package is used in a product, Eric Young should be given attribution
68 : : * as the author of the parts of the library used.
69 : : * This can be in the form of a textual message at program startup or
70 : : * in documentation (online or textual) provided with the package.
71 : : *
72 : : * Redistribution and use in source and binary forms, with or without
73 : : * modification, are permitted provided that the following conditions
74 : : * are met:
75 : : * 1. Redistributions of source code must retain the copyright
76 : : * notice, this list of conditions and the following disclaimer.
77 : : * 2. Redistributions in binary form must reproduce the above copyright
78 : : * notice, this list of conditions and the following disclaimer in the
79 : : * documentation and/or other materials provided with the distribution.
80 : : * 3. All advertising materials mentioning features or use of this software
81 : : * must display the following acknowledgement:
82 : : * "This product includes cryptographic software written by
83 : : * Eric Young (eay@cryptsoft.com)"
84 : : * The word 'cryptographic' can be left out if the rouines from the library
85 : : * being used are not cryptographic related :-).
86 : : * 4. If you include any Windows specific code (or a derivative thereof) from
87 : : * the apps directory (application code) you must include an acknowledgement:
88 : : * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
89 : : *
90 : : * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
91 : : * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
92 : : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
93 : : * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
94 : : * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
95 : : * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
96 : : * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
97 : : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
98 : : * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
99 : : * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
100 : : * SUCH DAMAGE.
101 : : *
102 : : * The licence and distribution terms for any publically available version or
103 : : * derivative of this code cannot be changed. i.e. this code cannot simply be
104 : : * copied and put under another distribution licence
105 : : * [including the GNU Public Licence.]
106 : : */
107 : :
108 : : #include <openssl/seed.h>
109 : : #include <openssl/modes.h>
110 : :
111 : 32 : void SEED_cfb128_encrypt(const unsigned char *in, unsigned char *out,
112 : : size_t len, const SEED_KEY_SCHEDULE *ks,
113 : : unsigned char ivec[SEED_BLOCK_SIZE], int *num, int enc)
114 : : {
115 : 32 : CRYPTO_cfb128_encrypt(in,out,len,ks,ivec,num,enc,(block128_f)SEED_encrypt);
116 : 32 : }
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