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53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/*
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* This is an OpenSSL-compatible implementation of the RSA Data Security,
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* Inc. MD4 Message-Digest Algorithm.
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*
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* Written by Solar Designer <solar@openwall.com> in 2001, and placed in
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* the public domain. See md4.c for more information.
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*/
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#ifndef MD4_H
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#define MD4_H
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#ifdef _WIN32
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#include "stdint.msvc.h"
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#else
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#include <stdint.h>
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#endif
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struct hash_method {
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const char *name;
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/* Number of bytes that must be allocated for context */
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unsigned int context_size;
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/* Number of bytes that must be allocated for result()'s digest */
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unsigned int digest_size;
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void ( *init )( void *context );
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void ( *loop )( void *context, const void *data, size_t size );
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void ( *result )( void *context, unsigned char *digest_r );
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};
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const struct hash_method *hash_method_lookup( const char *name );
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/* NULL-terminated list of all hash methods */
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extern const struct hash_method *hash_methods[];
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#define MD4_RESULTLEN ( 128 / 8 )
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struct md4_context {
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uint_fast32_t lo, hi;
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uint_fast32_t a, b, c, d;
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unsigned char buffer[64];
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uint_fast32_t block[MD4_RESULTLEN];
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};
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void md4_init( struct md4_context *ctx );
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void md4_update( struct md4_context *ctx, const void *data, size_t size );
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void md4_final( struct md4_context *ctx, unsigned char result[MD4_RESULTLEN] );
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void md4_get_digest( const void *data, size_t size,
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unsigned char result[MD4_RESULTLEN] );
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extern const struct hash_method hash_method_md4;
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#endif
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