andre@0: /* This Source Code Form is subject to the terms of the Mozilla Public
andre@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
andre@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
andre@0: 
andre@0: #ifndef _HASHT_H_
andre@0: #define _HASHT_H_
andre@0: 
andre@0: #include "prtypes.h"
andre@0: 
andre@0: /* Opaque objects */
andre@0: typedef struct SECHashObjectStr SECHashObject;
andre@0: typedef struct HASHContextStr HASHContext;
andre@0: 
andre@0: /*
andre@0:  * The hash functions the security library supports
andre@0:  * NOTE the order must match the definition of SECHashObjects[]!
andre@0:  */
andre@0: typedef enum {
andre@0:     HASH_AlgNULL   = 0,
andre@0:     HASH_AlgMD2    = 1,
andre@0:     HASH_AlgMD5    = 2,
andre@0:     HASH_AlgSHA1   = 3,
andre@0:     HASH_AlgSHA256 = 4,
andre@0:     HASH_AlgSHA384 = 5,
andre@0:     HASH_AlgSHA512 = 6,
andre@0:     HASH_AlgSHA224 = 7,
andre@0:     HASH_AlgTOTAL
andre@0: } HASH_HashType;
andre@0: 
andre@0: /*
andre@0:  * Number of bytes each hash algorithm produces
andre@0:  */
andre@0: #define MD2_LENGTH	16
andre@0: #define MD5_LENGTH	16
andre@0: #define SHA1_LENGTH	20
andre@0: #define SHA224_LENGTH 	28
andre@0: #define SHA256_LENGTH 	32
andre@0: #define SHA384_LENGTH 	48
andre@0: #define SHA512_LENGTH 	64
andre@0: #define HASH_LENGTH_MAX SHA512_LENGTH
andre@0: 
andre@0: /*
andre@0:  * Structure to hold hash computation info and routines
andre@0:  */
andre@0: struct SECHashObjectStr {
andre@0:     unsigned int length;  /* hash output length (in bytes) */
andre@0:     void * (*create)(void);
andre@0:     void * (*clone)(void *);
andre@0:     void (*destroy)(void *, PRBool);
andre@0:     void (*begin)(void *);
andre@0:     void (*update)(void *, const unsigned char *, unsigned int);
andre@0:     void (*end)(void *, unsigned char *, unsigned int *, unsigned int);
andre@0:     unsigned int blocklength;  /* hash input block size (in bytes) */
andre@0:     HASH_HashType type;
andre@0:     void (*end_raw)(void *, unsigned char *, unsigned int *, unsigned int);
andre@0: };
andre@0: 
andre@0: struct HASHContextStr {
andre@0:     const struct SECHashObjectStr *hashobj;
andre@0:     void *hash_context;
andre@0: };
andre@0: 
andre@0: #endif /* _HASHT_H_ */