include/openssl/rc5.h

   1 /*
   2  * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #ifndef OPENSSL_RC5_H
  11 # define OPENSSL_RC5_H
  12 # pragma once
  13
  14 # include <openssl/macros.h>
  15 # ifndef OPENSSL_NO_DEPRECATED_3_0
  16 #  define HEADER_RC5_H
  17 # endif
  18
  19 # include <openssl/opensslconf.h>
  20
  21 # ifndef OPENSSL_NO_RC5
  22 #  ifdef  __cplusplus
  23 extern "C" {
  24 #  endif
  25
  26 #  define RC5_32_BLOCK            8
  27 #  define RC5_32_KEY_LENGTH       16/* This is a default, max is 255 */
  28
  29 #  ifndef OPENSSL_NO_DEPRECATED_3_0
  30 #   define RC5_ENCRYPT     1
  31 #   define RC5_DECRYPT     0
  32
  33 #   define RC5_32_INT unsigned int
  34
  35 /*
  36  * This are the only values supported.  Tweak the code if you want more The
  37  * most supported modes will be RC5-32/12/16 RC5-32/16/8
  38  */
  39 #   define RC5_8_ROUNDS    8
  40 #   define RC5_12_ROUNDS   12
  41 #   define RC5_16_ROUNDS   16
  42
  43 typedef struct rc5_key_st {
  44     /* Number of rounds */
  45     int rounds;
  46     RC5_32_INT data[2 * (RC5_16_ROUNDS + 1)];
  47 } RC5_32_KEY;
  48 #  endif
  49 #  ifndef OPENSSL_NO_DEPRECATED_3_0
  50 OSSL_DEPRECATEDIN_3_0 int RC5_32_set_key(RC5_32_KEY *key, int len,
  51                                          const unsigned char *data,
  52                                          int rounds);
  53 OSSL_DEPRECATEDIN_3_0 void RC5_32_ecb_encrypt(const unsigned char *in,
  54                                               unsigned char *out,
  55                                               RC5_32_KEY *key,
  56                                               int enc);
  57 OSSL_DEPRECATEDIN_3_0 void RC5_32_encrypt(unsigned long *data, RC5_32_KEY *key);
  58 OSSL_DEPRECATEDIN_3_0 void RC5_32_decrypt(unsigned long *data, RC5_32_KEY *key);
  59 OSSL_DEPRECATEDIN_3_0 void RC5_32_cbc_encrypt(const unsigned char *in,
  60                                               unsigned char *out, long length,
  61                                               RC5_32_KEY *ks, unsigned char *iv,
  62                                               int enc);
  63 OSSL_DEPRECATEDIN_3_0 void RC5_32_cfb64_encrypt(const unsigned char *in,
  64                                                 unsigned char *out, long length,
  65                                                 RC5_32_KEY *schedule,
  66                                                 unsigned char *ivec, int *num,
  67                                                 int enc);
  68 OSSL_DEPRECATEDIN_3_0 void RC5_32_ofb64_encrypt(const unsigned char *in,
  69                                                 unsigned char *out, long length,
  70                                                 RC5_32_KEY *schedule,
  71                                                 unsigned char *ivec, int *num);
  72 #  endif
  73
  74 #  ifdef  __cplusplus
  75 }
  76 #  endif
  77 # endif
  78
  79 #endif