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 #ifdef __cplusplus
00029     extern "C" {
00030 #endif
00031 
00032 /* Hash types */
00033 enum wc_HashType {
00034     WC_HASH_TYPE_NONE = 0,
00035     WC_HASH_TYPE_MD2 = 1,
00036     WC_HASH_TYPE_MD4 = 2,
00037     WC_HASH_TYPE_MD5 = 3,
00038     WC_HASH_TYPE_SHA = 4, /* SHA-1 (not old SHA-0) */
00039     WC_HASH_TYPE_SHA256 = 5,
00040     WC_HASH_TYPE_SHA384 = 6,
00041     WC_HASH_TYPE_SHA512 = 7,
00042 };
00043 
00044 /* Find largest possible digest size
00045    Note if this gets up to the size of 80 or over check smallstack build */
00046 #if defined(WOLFSSL_SHA512)
00047     #define WC_MAX_DIGEST_SIZE SHA512_DIGEST_SIZE
00048 #elif defined(WOLFSSL_SHA384)
00049     #define WC_MAX_DIGEST_SIZE SHA384_DIGEST_SIZE
00050 #elif !defined(NO_SHA256)
00051     #define WC_MAX_DIGEST_SIZE SHA256_DIGEST_SIZE
00052 #elif !defined(NO_SHA)
00053     #define WC_MAX_DIGEST_SIZE SHA_DIGEST_SIZE
00054 #elif !defined(NO_MD5)
00055     #define WC_MAX_DIGEST_SIZE MD5_DIGEST_SIZE
00056 #else
00057     #define WC_MAX_DIGEST_SIZE 64 /* default to max size of 64 */
00058 #endif
00059 
00060 #ifndef NO_ASN
00061 WOLFSSL_API int wc_HashGetOID(enum wc_HashType hash_type);
00062 #endif
00063 
00064 WOLFSSL_API int wc_HashGetDigestSize(enum wc_HashType hash_type);
00065 WOLFSSL_API int wc_Hash(enum wc_HashType hash_type,
00066     const byte* data, word32 data_len,
00067     byte* hash, word32 hash_len);
00068 
00069 
00070 #ifndef NO_MD5
00071 #include <wolfssl/wolfcrypt/md5.h>
00072 WOLFSSL_API void wc_Md5GetHash(Md5*, byte*);
00073 WOLFSSL_API void wc_Md5RestorePos(Md5*, Md5*);
00074 #if defined(WOLFSSL_TI_HASH)
00075     WOLFSSL_API void wc_Md5Free(Md5*);
00076 #else
00077     #define wc_Md5Free(d)
00078 #endif
00079 #endif
00080 
00081 #ifndef NO_SHA
00082 #include <wolfssl/wolfcrypt/sha.h>
00083 WOLFSSL_API int wc_ShaGetHash(Sha*, byte*);
00084 WOLFSSL_API void wc_ShaRestorePos(Sha*, Sha*);
00085 WOLFSSL_API int wc_ShaHash(const byte*, word32, byte*);
00086 #if defined(WOLFSSL_TI_HASH)
00087      WOLFSSL_API void wc_ShaFree(Sha*);
00088 #else
00089     #define wc_ShaFree(d)
00090 #endif
00091 #endif
00092 
00093 #ifndef NO_SHA256
00094 #include <wolfssl/wolfcrypt/sha256.h>
00095 WOLFSSL_API int wc_Sha256GetHash(Sha256*, byte*);
00096 WOLFSSL_API void wc_Sha256RestorePos(Sha256*, Sha256*);
00097 WOLFSSL_API int wc_Sha256Hash(const byte*, word32, byte*);
00098 #if defined(WOLFSSL_TI_HASH)
00099     WOLFSSL_API void wc_Sha256Free(Sha256*);
00100 #else
00101     #define wc_Sha256Free(d)
00102 #endif
00103 #endif
00104 
00105 #ifdef WOLFSSL_SHA512
00106 #include <wolfssl/wolfcrypt/sha512.h>
00107 WOLFSSL_API int wc_Sha512Hash(const byte*, word32, byte*);
00108 #if defined(WOLFSSL_TI_HASH)
00109     WOLFSSL_API void wc_Sha512Free(Sha512*);
00110 #else
00111     #define wc_Sha512Free(d)
00112 #endif
00113     #if defined(WOLFSSL_SHA384)
00114         WOLFSSL_API int wc_Sha384Hash(const byte*, word32, byte*);
00115         #if defined(WOLFSSL_TI_HASH)
00116             WOLFSSL_API void wc_Sha384Free(Sha384*);
00117         #else
00118             #define wc_Sha384Free(d)
00119         #endif
00120     #endif /* defined(WOLFSSL_SHA384) */
00121 #endif /* WOLFSSL_SHA512 */
00122 
00123 
00124 #ifdef __cplusplus
00125     } /* extern "C" */
00126 #endif
00127 
00128 #endif /* WOLF_CRYPT_HASH_H */
00129