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