| 1 | /* $OpenBSD: md4.h,v 1.14 2004/05/03 17:30:14 millert Exp $ */ |
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| 2 | |
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| 3 | /* |
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| 4 | * This code implements the MD4 message-digest algorithm. |
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| 5 | * The algorithm is due to Ron Rivest. This code was |
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| 6 | * written by Colin Plumb in 1993, no copyright is claimed. |
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| 7 | * This code is in the public domain; do with it what you wish. |
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| 8 | * Todd C. Miller modified the MD5 code to do MD4 based on RFC 1186. |
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| 9 | * |
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| 10 | * Equivalent code is available from RSA Data Security, Inc. |
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| 11 | * This code has been tested against that, and is equivalent, |
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| 12 | * except that you don't need to include two pages of legalese |
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| 13 | * with every copy. |
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| 14 | */ |
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| 15 | |
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| 16 | #ifndef _MD4_H_ |
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| 17 | #define _MD4_H_ |
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| 18 | |
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| 19 | #include <sys/types.h> |
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| 20 | |
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| 21 | #include <stdint.h> |
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| 22 | |
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| 23 | #define MD4_BLOCK_LENGTH 64 |
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| 24 | #define MD4_DIGEST_LENGTH 16 |
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| 25 | #define MD4_DIGEST_STRING_LENGTH (MD4_DIGEST_LENGTH * 2 + 1) |
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| 26 | |
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| 27 | typedef struct MD4Context { |
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| 28 | uint32_t state[4]; /* state */ |
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| 29 | uint64_t count; /* number of bits, mod 2^64 */ |
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| 30 | uint8_t buffer[MD4_BLOCK_LENGTH]; /* input buffer */ |
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| 31 | } MD4_CTX; |
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| 32 | |
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| 33 | #ifdef __cplusplus |
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| 34 | extern "C" { |
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| 35 | #endif |
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| 36 | |
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| 37 | void MD4Init(MD4_CTX *); |
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| 38 | void MD4Update(MD4_CTX *, const uint8_t *, size_t); |
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| 39 | void MD4Pad(MD4_CTX *); |
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| 40 | void MD4Final(uint8_t [MD4_DIGEST_LENGTH], MD4_CTX *); |
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| 41 | void MD4Transform(uint32_t [4], const uint8_t [MD4_BLOCK_LENGTH]); |
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| 42 | char *MD4End(MD4_CTX *, char *); |
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| 43 | char *MD4File(const char *, char *); |
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| 44 | char *MD4FileChunk(const char *, char *, off_t, off_t); |
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| 45 | char *MD4Data(const uint8_t *, size_t, char *); |
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| 46 | |
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| 47 | #ifdef __cplusplus |
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| 48 | } |
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| 49 | #endif |
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| 50 | |
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| 51 | #endif /* _MD4_H_ */ |
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| 52 | |
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