hasht.h
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上传日期:2007-01-12
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- /*
- * 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 Netscape are
- * Copyright (C) 1994-2000 Netscape Communications Corporation. All
- * Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL"), in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your
- * version of this file only under the terms of the GPL and not to
- * allow others to use your version of this file under the MPL,
- * indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient
- * may use your version of this file under either the MPL or the
- * GPL.
- *
- * hasht.h - public data structures for the hashing library
- *
- * $Id: hasht.h,v 1.1 2000/03/31 19:45:11 relyea%netscape.com Exp $
- */
- #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,
- HASH_AlgMD2,
- HASH_AlgMD5,
- HASH_AlgSHA1,
- HASH_AlgTOTAL
- } HASH_HashType;
- /*
- * Number of bytes each hash algorithm produces
- */
- #define MD2_LENGTH 16
- #define MD5_LENGTH 16
- #define SHA1_LENGTH 20
- /*
- * Structure to hold hash computation info and routines
- */
- struct SECHashObjectStr {
- unsigned int length;
- 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);
- };
- struct HASHContextStr {
- struct SECHashObjectStr *hashobj;
- void *hash_context;
- };
- extern SECHashObject SECHashObjects[];
- /*only those functions below the PKCS #11 line should use SECRawHashObjects*/
- extern SECHashObject SECRawHashObjects[];
- #endif /* _HASHT_H_ */