AppleCSP/open_ssl/openssl/rc5.h

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 /* crypto/rc5/rc5.h */
  20 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  21  * All rights reserved.
  22  *
  23  * This package is an SSL implementation written
  24  * by Eric Young (eay@cryptsoft.com).
  25  * The implementation was written so as to conform with Netscapes SSL.
  26  *
  27  * This library is free for commercial and non-commercial use as long as
  28  * the following conditions are aheared to.  The following conditions
  29  * apply to all code found in this distribution, be it the RC4, RSA,
  30  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  31  * included with this distribution is covered by the same copyright terms
  32  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  33  *
  34  * Copyright remains Eric Young's, and as such any Copyright notices in
  35  * the code are not to be removed.
  36  * If this package is used in a product, Eric Young should be given attribution
  37  * as the author of the parts of the library used.
  38  * This can be in the form of a textual message at program startup or
  39  * in documentation (online or textual) provided with the package.
  40  *
  41  * Redistribution and use in source and binary forms, with or without
  42  * modification, are permitted provided that the following conditions
  43  * are met:
  44  * 1. Redistributions of source code must retain the copyright
  45  *    notice, this list of conditions and the following disclaimer.
  46  * 2. Redistributions in binary form must reproduce the above copyright
  47  *    notice, this list of conditions and the following disclaimer in the
  48  *    documentation and/or other materials provided with the distribution.
  49  * 3. All advertising materials mentioning features or use of this software
  50  *    must display the following acknowledgement:
  51  *    "This product includes cryptographic software written by
  52  *     Eric Young (eay@cryptsoft.com)"
  53  *    The word 'cryptographic' can be left out if the rouines from the library
  54  *    being used are not cryptographic related :-).
  55  * 4. If you include any Windows specific code (or a derivative thereof) from
  56  *    the apps directory (application code) you must include an acknowledgement:
  57  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  58  *
  59  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  60  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  61  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  62  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  63  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  64  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  65  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  66  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  67  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  68  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  69  * SUCH DAMAGE.
  70  *
  71  * The licence and distribution terms for any publically available version or
  72  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  73  * copied and put under another distribution licence
  74  * [including the GNU Public Licence.]
  75  */
  76
  77 #ifndef HEADER_RC5_H
  78 #define HEADER_RC5_H
  79
  80 #ifdef  __cplusplus
  81 extern "C" {
  82 #endif
  83
  84 #ifdef NO_RC5
  85 #error RC5 is disabled.
  86 #endif
  87
  88 #define RC5_ENCRYPT     1
  89 #define RC5_DECRYPT     0
  90
  91 #include <openssl/opensslconf.h> /* RC5_INT */
  92
  93 #ifdef  _OPENSSL_APPLE_CDSA_
  94
  95 #define RC5_BLOCK_SIZE_BYTES    8
  96 #define RC5_MIN_KEY_SIZE_BYTES  1
  97 #define RC5_MAX_KEY_SIZE_BYTES  255
  98
  99 #else
 100
 101 /* 32 bit.  For Alpha, things may get weird */
 102 #define RC5_32_INT unsigned long
 103
 104 #define RC5_32_BLOCK            8
 105 #define RC5_32_KEY_LENGTH       16 /* This is a default, max is 255 */
 106
 107 #endif  /* _OPENSSL_APPLE_CDSA_ */
 108
 109 /* This are the only values supported.  Tweak the code if you want more
 110  * The most supported modes will be
 111  * RC5-32/12/16
 112  * RC5-32/16/8
 113  */
 114 #define RC5_8_ROUNDS    8
 115 #define RC5_12_ROUNDS   12
 116 #define RC5_16_ROUNDS   16
 117
 118 typedef struct rc5_key_st
 119         {
 120         /* Number of rounds */
 121         int rounds;
 122         RC5_32_INT data[2*(RC5_16_ROUNDS+1)];
 123         } RC5_32_KEY;
 124
 125
 126 void RC5_32_set_key(RC5_32_KEY *key, int len, unsigned char *data,
 127         int rounds);
 128
 129 #ifdef  _OPENSSL_APPLE_CDSA_
 130 void RC5_32_encrypt(RC5_32_INT *data,RC5_32_KEY *key);
 131 void RC5_32_decrypt(RC5_32_INT *data,RC5_32_KEY *key);
 132 #else
 133 void RC5_32_ecb_encrypt(unsigned char *in,unsigned char *out,RC5_32_KEY *key,
 134         int enc);
 135 void RC5_32_encrypt(unsigned long *data,RC5_32_KEY *key);
 136 void RC5_32_decrypt(unsigned long *data,RC5_32_KEY *key);
 137 void RC5_32_cbc_encrypt(unsigned char *in, unsigned char *out, long length,
 138         RC5_32_KEY *ks, unsigned char *iv, int enc);
 139 void RC5_32_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
 140         RC5_32_KEY *schedule, unsigned char *ivec, int *num, int enc);
 141 void RC5_32_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
 142         RC5_32_KEY *schedule, unsigned char *ivec, int *num);
 143
 144 #endif  /* _OPENSSL_APPLE_CDSA_ */
 145
 146 #ifdef  __cplusplus
 147 }
 148 #endif
 149
 150 #endif