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64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef _HASHT_H_
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#define _HASHT_H_
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#include "prtypes.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_AlgSHA224 = 7,
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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 SHA224_LENGTH 28
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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; /* hash output length (in bytes) */
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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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unsigned int blocklength; /* hash input block size (in bytes) */
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HASH_HashType type;
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void (*end_raw)(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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#endif /* _HASHT_H_ */
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