1 /* ====================================================================
2 * Copyright (c) 2002-2006 The OpenSSL Project. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
16 * 3. All advertising materials mentioning features or use of this
17 * software must display the following acknowledgment:
18 * "This product includes software developed by the OpenSSL Project
19 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
21 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
22 * endorse or promote products derived from this software without
23 * prior written permission. For written permission, please contact
24 * openssl-core@openssl.org.
26 * 5. Products derived from this software may not be called "OpenSSL"
27 * nor may "OpenSSL" appear in their names without prior written
28 * permission of the OpenSSL Project.
30 * 6. Redistributions of any form whatsoever must retain the following
32 * "This product includes software developed by the OpenSSL Project
33 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46 * OF THE POSSIBILITY OF SUCH DAMAGE.
47 * ====================================================================
51 #include <openssl/aes.h>
52 #include <openssl/modes.h>
55 * The input and output encrypted as though 128bit cfb mode is being used.
56 * The extra state information to record how much of the 128bit block we have
57 * used is contained in *num;
60 void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out,
61 size_t length, const AES_KEY *key,
62 unsigned char *ivec, int *num, const int enc)
65 CRYPTO_cfb128_encrypt(in, out, length, key, ivec, num, enc,
66 (block128_f) AES_encrypt);
69 /* N.B. This expects the input to be packed, MS bit first */
70 void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out,
71 size_t length, const AES_KEY *key,
72 unsigned char *ivec, int *num, const int enc)
74 CRYPTO_cfb128_1_encrypt(in, out, length, key, ivec, num, enc,
75 (block128_f) AES_encrypt);
78 void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out,
79 size_t length, const AES_KEY *key,
80 unsigned char *ivec, int *num, const int enc)
82 CRYPTO_cfb128_8_encrypt(in, out, length, key, ivec, num, enc,
83 (block128_f) AES_encrypt);