1 | /* hash.h
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2 | *
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3 | * Copyright (C) 2006-2017 wolfSSL Inc.
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4 | *
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5 | * This file is part of wolfSSL.
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6 | *
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7 | * wolfSSL is free software; you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation; either version 2 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * wolfSSL is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with this program; if not, write to the Free Software
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19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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20 | */
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21 |
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22 |
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23 | #ifndef WOLF_CRYPT_HASH_H
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24 | #define WOLF_CRYPT_HASH_H
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25 |
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26 | #include <wolfssl/wolfcrypt/types.h>
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27 |
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28 | #ifndef NO_MD5
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29 | #include <wolfssl/wolfcrypt/md5.h>
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30 | #endif
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31 | #ifndef NO_SHA
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32 | #include <wolfssl/wolfcrypt/sha.h>
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33 | #endif
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34 | #if defined(WOLFSSL_SHA224) || !defined(NO_SHA256)
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35 | #include <wolfssl/wolfcrypt/sha256.h>
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36 | #endif
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37 | #if defined(WOLFSSL_SHA384) || defined(WOLFSSL_SHA512)
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38 | #include <wolfssl/wolfcrypt/sha512.h>
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39 | #endif
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40 |
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41 | #ifdef __cplusplus
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42 | extern "C" {
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43 | #endif
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44 |
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45 | /* Hash types */
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46 | enum wc_HashType {
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47 | WC_HASH_TYPE_NONE = 0,
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48 | WC_HASH_TYPE_MD2 = 1,
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49 | WC_HASH_TYPE_MD4 = 2,
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50 | WC_HASH_TYPE_MD5 = 3,
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51 | WC_HASH_TYPE_SHA = 4, /* SHA-1 (not old SHA-0) */
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52 | WC_HASH_TYPE_SHA224 = 9,
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53 | WC_HASH_TYPE_SHA256 = 5,
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54 | WC_HASH_TYPE_SHA384 = 6,
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55 | WC_HASH_TYPE_SHA512 = 7,
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56 | WC_HASH_TYPE_MD5_SHA = 8,
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57 | };
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58 |
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59 | typedef union {
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60 | #ifndef NO_MD5
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61 | wc_Md5 md5;
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62 | #endif
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63 | #ifndef NO_SHA
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64 | wc_Sha sha;
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65 | #endif
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66 | #ifdef WOLFSSL_SHA224
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67 | wc_Sha224 sha224;
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68 | #endif
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69 | #ifndef NO_SHA256
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70 | wc_Sha256 sha256;
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71 | #endif
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72 | #ifdef WOLFSSL_SHA384
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73 | wc_Sha384 sha384;
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74 | #endif
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75 | #ifdef WOLFSSL_SHA512
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76 | wc_Sha512 sha512;
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77 | #endif
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78 | } wc_HashAlg;
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79 |
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80 | /* Find largest possible digest size
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81 | Note if this gets up to the size of 80 or over check smallstack build */
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82 | #if defined(WOLFSSL_SHA512)
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83 | #define WC_MAX_DIGEST_SIZE WC_SHA512_DIGEST_SIZE
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84 | #elif defined(WOLFSSL_SHA384)
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85 | #define WC_MAX_DIGEST_SIZE WC_SHA384_DIGEST_SIZE
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86 | #elif !defined(NO_SHA256)
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87 | #define WC_MAX_DIGEST_SIZE WC_SHA256_DIGEST_SIZE
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88 | #elif defined(WOLFSSL_SHA224)
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89 | #define WC_MAX_DIGEST_SIZE WC_SHA224_DIGEST_SIZE
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90 | #elif !defined(NO_SHA)
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91 | #define WC_MAX_DIGEST_SIZE WC_SHA_DIGEST_SIZE
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92 | #elif !defined(NO_MD5)
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93 | #define WC_MAX_DIGEST_SIZE WC_MD5_DIGEST_SIZE
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94 | #else
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95 | #define WC_MAX_DIGEST_SIZE 64 /* default to max size of 64 */
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96 | #endif
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97 |
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98 | #if !defined(NO_ASN) || !defined(NO_DH) || defined(HAVE_ECC)
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99 | WOLFSSL_API int wc_HashGetOID(enum wc_HashType hash_type);
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100 | #endif
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101 |
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102 | WOLFSSL_API int wc_HashGetDigestSize(enum wc_HashType hash_type);
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103 | WOLFSSL_API int wc_Hash(enum wc_HashType hash_type,
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104 | const byte* data, word32 data_len,
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105 | byte* hash, word32 hash_len);
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106 |
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107 | /* generic hash operation wrappers */
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108 | WOLFSSL_API int wc_HashInit(wc_HashAlg* hash, enum wc_HashType type);
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109 | WOLFSSL_API int wc_HashUpdate(wc_HashAlg* hash, enum wc_HashType type,
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110 | const byte* data, word32 dataSz);
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111 | WOLFSSL_API int wc_HashFinal(wc_HashAlg* hash, enum wc_HashType type,
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112 | byte* out);
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113 |
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114 |
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115 | #ifndef NO_MD5
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116 | #include <wolfssl/wolfcrypt/md5.h>
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117 | WOLFSSL_API int wc_Md5Hash(const byte* data, word32 len, byte* hash);
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118 | #endif
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119 |
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120 | #ifndef NO_SHA
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121 | #include <wolfssl/wolfcrypt/sha.h>
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122 | WOLFSSL_API int wc_ShaHash(const byte*, word32, byte*);
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123 | #endif
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124 |
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125 | #ifndef NO_SHA256
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126 | #include <wolfssl/wolfcrypt/sha256.h>
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127 | WOLFSSL_API int wc_Sha256Hash(const byte*, word32, byte*);
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128 |
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129 | #if defined(WOLFSSL_SHA224)
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130 | WOLFSSL_API int wc_Sha224Hash(const byte*, word32, byte*);
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131 | #endif /* defined(WOLFSSL_SHA224) */
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132 | #endif
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133 |
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134 | #ifdef WOLFSSL_SHA512
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135 | #include <wolfssl/wolfcrypt/sha512.h>
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136 | WOLFSSL_API int wc_Sha512Hash(const byte*, word32, byte*);
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137 |
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138 | #if defined(WOLFSSL_SHA384)
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139 | WOLFSSL_API int wc_Sha384Hash(const byte*, word32, byte*);
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140 | #endif /* defined(WOLFSSL_SHA384) */
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141 | #endif /* WOLFSSL_SHA512 */
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142 |
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143 | #ifdef __cplusplus
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144 | } /* extern "C" */
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145 | #endif
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146 |
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147 | #endif /* WOLF_CRYPT_HASH_H */
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