lib/hcrypto/rc2.h

   1 /*
   2  * Copyright (c) 2004 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 /* $Id$ */
  35
  36 /* symbol renaming */
  37 #define RC2_set_key hc_RC2_set_key
  38 #define RC2_encryptc hc_RC2_encryptc
  39 #define RC2_decryptc hc_RC2_decryptc
  40 #define RC2_cbc_encrypt hc_RC2_cbc_encrypt
  41
  42 /*
  43  *
  44  */
  45
  46 #define RC2_ENCRYPT     1
  47 #define RC2_DECRYPT     0
  48
  49 #define RC2_BLOCK_SIZE  8
  50 #define RC2_BLOCK       RC2_BLOCK_SIZE
  51 #define RC2_KEY_LENGTH  16
  52
  53 typedef struct rc2_key {
  54     unsigned int data[64];
  55 } RC2_KEY;
  56
  57 #ifdef __cplusplus
  58 extern "C" {
  59 #endif
  60
  61 void RC2_set_key(RC2_KEY *, int, const unsigned char *,int);
  62
  63 void RC2_encryptc(unsigned char *, unsigned char *, const RC2_KEY *);
  64 void RC2_decryptc(unsigned char *, unsigned char *, const RC2_KEY *);
  65
  66 void RC2_cbc_encrypt(const unsigned char *, unsigned char *, long,
  67                      RC2_KEY *, unsigned char *, int);
  68
  69 #ifdef  __cplusplus
  70 }
  71 #endif