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101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Netscape security libraries.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1994-2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License Version 2 or later (the
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* "GPL"), in which case the provisions of the GPL are applicable
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* instead of those above. If you wish to allow use of your
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* version of this file only under the terms of the GPL and not to
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* allow others to use your version of this file under the MPL,
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* indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by
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* the GPL. If you do not delete the provisions above, a recipient
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* may use your version of this file under either the MPL or the
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* GPL.
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*
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* hasht.h - public data structures for the hashing library
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*
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* $Id: hasht.h,v 1.4 2002/11/16 03:29:32 nelsonb%netscape.com Exp $
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*/
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#ifndef _HASHT_H_
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#define _HASHT_H_
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/* Opaque objects */
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typedef struct SECHashObjectStr SECHashObject;
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typedef struct HASHContextStr HASHContext;
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/*
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* The hash functions the security library supports
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* NOTE the order must match the definition of SECHashObjects[]!
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*/
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typedef enum {
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HASH_AlgNULL = 0,
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HASH_AlgMD2 = 1,
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HASH_AlgMD5 = 2,
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HASH_AlgSHA1 = 3,
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HASH_AlgSHA256 = 4,
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HASH_AlgSHA384 = 5,
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HASH_AlgSHA512 = 6,
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HASH_AlgTOTAL
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} HASH_HashType;
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/*
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* Number of bytes each hash algorithm produces
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*/
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#define MD2_LENGTH 16
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#define MD5_LENGTH 16
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#define SHA1_LENGTH 20
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#define SHA256_LENGTH 32
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#define SHA384_LENGTH 48
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#define SHA512_LENGTH 64
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#define HASH_LENGTH_MAX SHA512_LENGTH
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/*
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* Structure to hold hash computation info and routines
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*/
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struct SECHashObjectStr {
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unsigned int length;
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void * (*create)(void);
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void * (*clone)(void *);
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void (*destroy)(void *, PRBool);
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void (*begin)(void *);
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void (*update)(void *, const unsigned char *, unsigned int);
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void (*end)(void *, unsigned char *, unsigned int *, unsigned int);
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};
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struct HASHContextStr {
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const struct SECHashObjectStr *hashobj;
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void *hash_context;
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};
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/* This symbol is NOT exported from the NSS DLL. Code that needs a
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* pointer to one of the SECHashObjects should call HASH_GetHashObject()
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* instead. See "sechash.h".
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*/
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extern const SECHashObject SECHashObjects[];
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/* Only those functions below the PKCS #11 line should use SECRawHashObjects.
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* This symbol is not exported from the NSS DLL.
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*/
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extern const SECHashObject SECRawHashObjects[];
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#endif /* _HASHT_H_ */
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