hash.h

00001 /* hash.h
00002  *
00003  * Copyright (C) 2006-2016 wolfSSL Inc.
00004  *
00005  * This file is part of wolfSSL.
00006  *
00007  * wolfSSL is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 2 of the License, or
00010  * (at your option) any later version.
00011  *
00012  * wolfSSL is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
00020  */
00021 
00022 
00023 #ifndef WOLF_CRYPT_HASH_H
00024 #define WOLF_CRYPT_HASH_H
00025 
00026 #include <wolfssl/wolfcrypt/types.h>
00027 
00028 #ifndef NO_MD5
00029     #include <wolfssl/wolfcrypt/md5.h>
00030 #endif
00031 #ifndef NO_SHA
00032     #include <wolfssl/wolfcrypt/sha.h>
00033 #endif
00034 #if defined(WOLFSSL_SHA224) || !defined(NO_SHA256)
00035     #include <wolfssl/wolfcrypt/sha256.h>
00036 #endif
00037 #if defined(WOLFSSL_SHA384) || defined(WOLFSSL_SHA512)
00038     #include <wolfssl/wolfcrypt/sha512.h>
00039 #endif
00040 
00041 #ifdef __cplusplus
00042     extern "C" {
00043 #endif
00044 
00045 /* Hash types */
00046 enum wc_HashType {
00047     WC_HASH_TYPE_NONE = 0,
00048     WC_HASH_TYPE_MD2 = 1,
00049     WC_HASH_TYPE_MD4 = 2,
00050     WC_HASH_TYPE_MD5 = 3,
00051     WC_HASH_TYPE_SHA = 4, /* SHA-1 (not old SHA-0) */
00052     WC_HASH_TYPE_SHA224 = 9,
00053     WC_HASH_TYPE_SHA256 = 5,
00054     WC_HASH_TYPE_SHA384 = 6,
00055     WC_HASH_TYPE_SHA512 = 7,
00056     WC_HASH_TYPE_MD5_SHA = 8,
00057 };
00058 
00059 typedef union {
00060     #ifndef NO_MD5
00061         Md5 md5;
00062     #endif
00063     #ifndef NO_SHA
00064         Sha sha;
00065     #endif
00066     #ifdef WOLFSSL_SHA224
00067         Sha224 sha224;
00068     #endif
00069     #ifndef NO_SHA256
00070         Sha256 sha256;
00071     #endif
00072     #ifdef WOLFSSL_SHA384
00073         Sha384 sha384;
00074     #endif
00075     #ifdef WOLFSSL_SHA512
00076         Sha512 sha512;
00077     #endif
00078 } wc_HashAlg;
00079 
00080 /* Find largest possible digest size
00081    Note if this gets up to the size of 80 or over check smallstack build */
00082 #if defined(WOLFSSL_SHA512)
00083     #define WC_MAX_DIGEST_SIZE SHA512_DIGEST_SIZE
00084 #elif defined(WOLFSSL_SHA384)
00085     #define WC_MAX_DIGEST_SIZE SHA384_DIGEST_SIZE
00086 #elif !defined(NO_SHA256)
00087     #define WC_MAX_DIGEST_SIZE SHA256_DIGEST_SIZE
00088 #elif defined(WOLFSSL_SHA224)
00089     #define WC_MAX_DIGEST_SIZE SHA224_DIGEST_SIZE
00090 #elif !defined(NO_SHA)
00091     #define WC_MAX_DIGEST_SIZE SHA_DIGEST_SIZE
00092 #elif !defined(NO_MD5)
00093     #define WC_MAX_DIGEST_SIZE MD5_DIGEST_SIZE
00094 #else
00095     #define WC_MAX_DIGEST_SIZE 64 /* default to max size of 64 */
00096 #endif
00097 
00098 #if !defined(NO_ASN) || !defined(NO_DH) || defined(HAVE_ECC)
00099 WOLFSSL_API int wc_HashGetOID(enum wc_HashType hash_type);
00100 #endif
00101 
00102 WOLFSSL_API int wc_HashGetDigestSize(enum wc_HashType hash_type);
00103 WOLFSSL_API int wc_Hash(enum wc_HashType hash_type,
00104     const byte* data, word32 data_len,
00105     byte* hash, word32 hash_len);
00106 
00107 /* generic hash operation wrappers */
00108 WOLFSSL_API int wc_HashInit(wc_HashAlg* hash, enum wc_HashType type);
00109 WOLFSSL_API int wc_HashUpdate(wc_HashAlg* hash, enum wc_HashType type,
00110     const byte* data, word32 dataSz);
00111 WOLFSSL_API int wc_HashFinal(wc_HashAlg* hash, enum wc_HashType type,
00112     byte* out);
00113 
00114 
00115 #ifndef NO_MD5
00116 #include <wolfssl/wolfcrypt/md5.h>
00117 WOLFSSL_API int wc_Md5Hash(const byte* data, word32 len, byte* hash);
00118 #endif
00119 
00120 #ifndef NO_SHA
00121 #include <wolfssl/wolfcrypt/sha.h>
00122 WOLFSSL_API int wc_ShaHash(const byte*, word32, byte*);
00123 #endif
00124 
00125 #ifndef NO_SHA256
00126 #include <wolfssl/wolfcrypt/sha256.h>
00127 WOLFSSL_API int wc_Sha256Hash(const byte*, word32, byte*);
00128 
00129     #if defined(WOLFSSL_SHA224)
00130         WOLFSSL_API int wc_Sha224Hash(const byte*, word32, byte*);
00131     #endif /* defined(WOLFSSL_SHA224) */
00132 #endif
00133 
00134 #ifdef WOLFSSL_SHA512
00135 #include <wolfssl/wolfcrypt/sha512.h>
00136 WOLFSSL_API int wc_Sha512Hash(const byte*, word32, byte*);
00137 
00138     #if defined(WOLFSSL_SHA384)
00139         WOLFSSL_API int wc_Sha384Hash(const byte*, word32, byte*);
00140     #endif /* defined(WOLFSSL_SHA384) */
00141 #endif /* WOLFSSL_SHA512 */
00142 
00143 #ifdef __cplusplus
00144     } /* extern "C" */
00145 #endif
00146 
00147 #endif /* WOLF_CRYPT_HASH_H */
00148