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   1 /* evp.h
   2  *
   3  * Copyright (C) 2012 Sawtooth Consulting Ltd.
   4  *
   5  * This file is part of CyaSSL.
   6  *
   7  * CyaSSL is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * CyaSSL is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  20  */
  21
  22
  23 /*  evp.h defines mini evp openssl compatibility layer
  24  *
  25  */
  26
  27
  28 #ifndef CYASSL_EVP_H_
  29 #define CYASSL_EVP_H_
  30
  31 #include <cyassl/ctaocrypt/settings.h>
  32
  33 #ifdef YASSL_PREFIX
  34 #include "prefix_evp.h"
  35 #endif
  36
  37 #include <cyassl/openssl/md5.h>
  38 #include <cyassl/openssl/sha.h>
  39 #include <cyassl/openssl/ripemd.h>
  40 #include <cyassl/openssl/rsa.h>
  41 #include <cyassl/openssl/dsa.h>
  42
  43 #include <cyassl/ctaocrypt/aes.h>
  44 #include <cyassl/ctaocrypt/des3.h>
  45 #include <cyassl/ctaocrypt/arc4.h>
  46
  47
  48 #ifdef __cplusplus
  49     extern "C" {
  50 #endif
  51
  52 typedef char CYASSL_EVP_MD;
  53 typedef char CYASSL_EVP_CIPHER;
  54
  55 CYASSL_API const CYASSL_EVP_MD* CyaSSL_EVP_md5(void);
  56 CYASSL_API const CYASSL_EVP_MD* CyaSSL_EVP_sha1(void);
  57 CYASSL_API const CYASSL_EVP_MD* CyaSSL_EVP_sha256(void);
  58 CYASSL_API const CYASSL_EVP_MD* CyaSSL_EVP_sha384(void);
  59 CYASSL_API const CYASSL_EVP_MD* CyaSSL_EVP_sha512(void);
  60 CYASSL_API const CYASSL_EVP_MD* CyaSSL_EVP_ripemd160(void);
  61
  62 CYASSL_API const CYASSL_EVP_CIPHER* CyaSSL_EVP_aes_128_cbc(void);
  63 CYASSL_API const CYASSL_EVP_CIPHER* CyaSSL_EVP_aes_192_cbc(void);
  64 CYASSL_API const CYASSL_EVP_CIPHER* CyaSSL_EVP_aes_256_cbc(void);
  65 CYASSL_API const CYASSL_EVP_CIPHER* CyaSSL_EVP_aes_128_ctr(void);
  66 CYASSL_API const CYASSL_EVP_CIPHER* CyaSSL_EVP_aes_192_ctr(void);
  67 CYASSL_API const CYASSL_EVP_CIPHER* CyaSSL_EVP_aes_256_ctr(void);
  68 CYASSL_API const CYASSL_EVP_CIPHER* CyaSSL_EVP_des_cbc(void);
  69 CYASSL_API const CYASSL_EVP_CIPHER* CyaSSL_EVP_des_ede3_cbc(void);
  70 CYASSL_API const CYASSL_EVP_CIPHER* CyaSSL_EVP_rc4(void);
  71 CYASSL_API const CYASSL_EVP_CIPHER* CyaSSL_EVP_enc_null(void);
  72
  73
  74 typedef union {
  75     CYASSL_MD5_CTX    md5;
  76     CYASSL_SHA_CTX    sha;
  77     CYASSL_SHA256_CTX sha256;
  78     #ifdef CYASSL_SHA384
  79         CYASSL_SHA384_CTX sha384;
  80     #endif
  81     #ifdef CYASSL_SHA512
  82         CYASSL_SHA512_CTX sha512;
  83     #endif
  84     #ifdef CYASSL_RIPEMD
  85         CYASSL_RIPEMD_CTX ripemd;
  86     #endif
  87 } CYASSL_Hasher;
  88
  89
  90 typedef struct CYASSL_EVP_MD_CTX {
  91     unsigned char macType;
  92     CYASSL_Hasher hash;
  93 } CYASSL_EVP_MD_CTX;
  94
  95
  96 typedef union {
  97     Aes  aes;
  98     Des  des;
  99     Des3 des3;
 100     Arc4 arc4;
 101 } CYASSL_Cipher;
 102
 103
 104 enum {
 105     AES_128_CBC_TYPE  = 1,
 106     AES_192_CBC_TYPE  = 2,
 107     AES_256_CBC_TYPE  = 3,
 108     AES_128_CTR_TYPE  = 4,
 109     AES_192_CTR_TYPE  = 5,
 110     AES_256_CTR_TYPE  = 6,
 111     DES_CBC_TYPE      = 7,
 112     DES_EDE3_CBC_TYPE = 8,
 113     ARC4_TYPE         = 9,
 114     NULL_CIPHER_TYPE  = 10,
 115     EVP_PKEY_RSA      = 11,
 116     EVP_PKEY_DSA      = 12,
 117     NID_sha1          = 64,
 118     NID_md5           =  4
 119 };
 120
 121
 122 typedef struct CYASSL_EVP_CIPHER_CTX {
 123     int            keyLen;         /* user may set for variable */
 124     unsigned char  enc;            /* if encrypt side, then true */
 125     unsigned char  cipherType;
 126     unsigned char  iv[64];         /* working iv pointer into cipher */
 127     CYASSL_Cipher  cipher;
 128 } CYASSL_EVP_CIPHER_CTX;
 129
 130
 131 CYASSL_API int  CyaSSL_EVP_MD_size(const CYASSL_EVP_MD* md);
 132 CYASSL_API void CyaSSL_EVP_MD_CTX_init(CYASSL_EVP_MD_CTX* ctx);
 133 CYASSL_API int  CyaSSL_EVP_MD_CTX_cleanup(CYASSL_EVP_MD_CTX* ctx);
 134
 135 CYASSL_API int CyaSSL_EVP_DigestInit(CYASSL_EVP_MD_CTX* ctx,
 136                                      const CYASSL_EVP_MD* type);
 137 CYASSL_API int CyaSSL_EVP_DigestUpdate(CYASSL_EVP_MD_CTX* ctx, const void* data,
 138                                        unsigned long sz);
 139 CYASSL_API int CyaSSL_EVP_DigestFinal(CYASSL_EVP_MD_CTX* ctx, unsigned char* md,
 140                                       unsigned int* s);
 141 CYASSL_API int CyaSSL_EVP_DigestFinal_ex(CYASSL_EVP_MD_CTX* ctx,
 142                                             unsigned char* md, unsigned int* s);
 143 CYASSL_API int CyaSSL_EVP_BytesToKey(const CYASSL_EVP_CIPHER*,
 144                               const CYASSL_EVP_MD*, const unsigned char*,
 145                               const unsigned char*, int, int, unsigned char*,
 146                               unsigned char*);
 147
 148 CYASSL_API void CyaSSL_EVP_CIPHER_CTX_init(CYASSL_EVP_CIPHER_CTX* ctx);
 149 CYASSL_API int  CyaSSL_EVP_CIPHER_CTX_cleanup(CYASSL_EVP_CIPHER_CTX* ctx);
 150
 151 CYASSL_API int  CyaSSL_EVP_CIPHER_CTX_iv_length(const CYASSL_EVP_CIPHER_CTX*);
 152
 153
 154 CYASSL_API int  CyaSSL_EVP_CipherInit(CYASSL_EVP_CIPHER_CTX* ctx,
 155                                     const CYASSL_EVP_CIPHER* type,
 156                                     unsigned char* key, unsigned char* iv,
 157                                     int enc);
 158 CYASSL_API int  CyaSSL_EVP_CIPHER_CTX_key_length(CYASSL_EVP_CIPHER_CTX* ctx);
 159 CYASSL_API int  CyaSSL_EVP_CIPHER_CTX_set_key_length(CYASSL_EVP_CIPHER_CTX* ctx,
 160                                                      int keylen);
 161 CYASSL_API int  CyaSSL_EVP_Cipher(CYASSL_EVP_CIPHER_CTX* ctx,
 162                           unsigned char* dst, unsigned char* src,
 163                           unsigned int len);
 164
 165 CYASSL_API const CYASSL_EVP_MD* CyaSSL_EVP_get_digestbynid(int);
 166
 167 CYASSL_API CYASSL_RSA* CyaSSL_EVP_PKEY_get1_RSA(CYASSL_EVP_PKEY*);
 168 CYASSL_API CYASSL_DSA* CyaSSL_EVP_PKEY_get1_DSA(CYASSL_EVP_PKEY*);
 169
 170 /* these next ones don't need real OpenSSL type, for OpenSSH compat only */
 171 CYASSL_API void* CyaSSL_EVP_X_STATE(const CYASSL_EVP_CIPHER_CTX* ctx);
 172 CYASSL_API int   CyaSSL_EVP_X_STATE_LEN(const CYASSL_EVP_CIPHER_CTX* ctx);
 173
 174 CYASSL_API void  CyaSSL_3des_iv(CYASSL_EVP_CIPHER_CTX* ctx, int doset,
 175                                 unsigned char* iv, int len);
 176 CYASSL_API void  CyaSSL_aes_ctr_iv(CYASSL_EVP_CIPHER_CTX* ctx, int doset,
 177                                 unsigned char* iv, int len);
 178
 179 CYASSL_API int  CyaSSL_StoreExternalIV(CYASSL_EVP_CIPHER_CTX* ctx);
 180 CYASSL_API int  CyaSSL_SetInternalIV(CYASSL_EVP_CIPHER_CTX* ctx);
 181
 182
 183 /* end OpenSSH compat */
 184
 185 typedef CYASSL_EVP_MD         EVP_MD;
 186 typedef CYASSL_EVP_CIPHER     EVP_CIPHER;
 187 typedef CYASSL_EVP_MD_CTX     EVP_MD_CTX;
 188 typedef CYASSL_EVP_CIPHER_CTX EVP_CIPHER_CTX;
 189
 190 #define EVP_md5       CyaSSL_EVP_md5
 191 #define EVP_sha1      CyaSSL_EVP_sha1
 192 #define EVP_sha256    CyaSSL_EVP_sha256
 193 #define EVP_sha384    CyaSSL_EVP_sha384
 194 #define EVP_sha512    CyaSSL_EVP_sha512
 195 #define EVP_ripemd160 CyaSSL_EVP_ripemd160
 196
 197 #define EVP_aes_128_cbc  CyaSSL_EVP_aes_128_cbc
 198 #define EVP_aes_192_cbc  CyaSSL_EVP_aes_192_cbc
 199 #define EVP_aes_256_cbc  CyaSSL_EVP_aes_256_cbc
 200 #define EVP_aes_128_ctr  CyaSSL_EVP_aes_128_ctr
 201 #define EVP_aes_192_ctr  CyaSSL_EVP_aes_192_ctr
 202 #define EVP_aes_256_ctr  CyaSSL_EVP_aes_256_ctr
 203 #define EVP_des_cbc      CyaSSL_EVP_des_cbc
 204 #define EVP_des_ede3_cbc CyaSSL_EVP_des_ede3_cbc
 205 #define EVP_rc4          CyaSSL_EVP_rc4
 206 #define EVP_enc_null     CyaSSL_EVP_enc_null
 207
 208 #define EVP_MD_size        CyaSSL_EVP_MD_size
 209 #define EVP_MD_CTX_init    CyaSSL_EVP_MD_CTX_init
 210 #define EVP_MD_CTX_cleanup CyaSSL_EVP_MD_CTX_cleanup
 211 #define EVP_DigestInit     CyaSSL_EVP_DigestInit
 212 #define EVP_DigestUpdate   CyaSSL_EVP_DigestUpdate
 213 #define EVP_DigestFinal    CyaSSL_EVP_DigestFinal
 214 #define EVP_DigestFinal_ex CyaSSL_EVP_DigestFinal_ex
 215 #define EVP_BytesToKey     CyaSSL_EVP_BytesToKey
 216
 217 #define EVP_CIPHER_CTX_init           CyaSSL_EVP_CIPHER_CTX_init
 218 #define EVP_CIPHER_CTX_cleanup        CyaSSL_EVP_CIPHER_CTX_cleanup
 219 #define EVP_CIPHER_CTX_iv_length      CyaSSL_EVP_CIPHER_CTX_iv_length
 220 #define EVP_CIPHER_CTX_key_length     CyaSSL_EVP_CIPHER_CTX_key_length
 221 #define EVP_CIPHER_CTX_set_key_length CyaSSL_EVP_CIPHER_CTX_set_key_length
 222 #define EVP_CipherInit                CyaSSL_EVP_CipherInit
 223 #define EVP_Cipher                    CyaSSL_EVP_Cipher
 224
 225 #define EVP_get_digestbynid           CyaSSL_EVP_get_digestbynid
 226
 227 #define EVP_PKEY_get1_RSA   CyaSSL_EVP_PKEY_get1_RSA
 228 #define EVP_PKEY_get1_DSA   CyaSSL_EVP_PKEY_get1_DSA
 229
 230 #ifndef EVP_MAX_MD_SIZE
 231     #define EVP_MAX_MD_SIZE   64     /* sha512 */
 232 #endif
 233
 234 #ifdef __cplusplus
 235     } /* extern "C" */
 236 #endif
 237
 238
 239 #endif /* CYASSL_EVP_H_ */