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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape security libraries.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1994-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/* $Id$ */
#ifndef _HASHT_H_
#define _HASHT_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_AlgTOTAL
} HASH_HashType;
/*
* Number of bytes each hash algorithm produces
*/
#define MD2_LENGTH 16
#define MD5_LENGTH 16
#define SHA1_LENGTH 20
#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;
};
struct HASHContextStr {
const struct SECHashObjectStr *hashobj;
void *hash_context;
};
/* This symbol is NOT exported from the NSS DLL. Code that needs a
* pointer to one of the SECHashObjects should call HASH_GetHashObject()
* instead. See "sechash.h".
*/
extern const SECHashObject SECHashObjects[];
/* Only those functions below the PKCS #11 line should use SECRawHashObjects.
* This symbol is not exported from the NSS DLL.
*/
extern const SECHashObject SECRawHashObjects[];
#endif /* _HASHT_H_ */
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