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