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cmll_cfb.c
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1 /* crypto/camellia/camellia_cfb.c -*- mode:C; c-file-style: "eay" -*- */
2 /* ====================================================================
3  * Copyright (c) 2006 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/)"
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22  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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31  * 6. Redistributions of any form whatsoever must retain the following
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33  * "This product includes software developed by the OpenSSL Project
34  * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35  *
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38  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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51 /* Copyright (C) 1995-1998 Eric Young ([email protected])
52  * All rights reserved.
53  *
54  * This package is an SSL implementation written
55  * by Eric Young ([email protected]).
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 ([email protected]).
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 ([email protected])"
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 ([email protected])"
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/camellia.h>
109 #include <openssl/modes.h>
110 
111 
112 /* The input and output encrypted as though 128bit cfb mode is being
113  * used. The extra state information to record how much of the
114  * 128bit block we have used is contained in *num;
115  */
116 
117 void Camellia_cfb128_encrypt(const unsigned char *in, unsigned char *out,
118  size_t length, const CAMELLIA_KEY *key,
119  unsigned char *ivec, int *num, const int enc)
120  {
121 
122  CRYPTO_cfb128_encrypt(in,out,length,key,ivec,num,enc,(block128_f)Camellia_encrypt);
123  }
124 
125 /* N.B. This expects the input to be packed, MS bit first */
126 void Camellia_cfb1_encrypt(const unsigned char *in, unsigned char *out,
127  size_t length, const CAMELLIA_KEY *key,
128  unsigned char *ivec, int *num, const int enc)
129  {
130  CRYPTO_cfb128_1_encrypt(in,out,length,key,ivec,num,enc,(block128_f)Camellia_encrypt);
131  }
132 
133 void Camellia_cfb8_encrypt(const unsigned char *in, unsigned char *out,
134  size_t length, const CAMELLIA_KEY *key,
135  unsigned char *ivec, int *num, const int enc)
136  {
137  CRYPTO_cfb128_8_encrypt(in,out,length,key,ivec,num,enc,(block128_f)Camellia_encrypt);
138  }
139