md5.h (989B)
1 /* $OpenBSD: md5.h,v 1.2 2012/12/05 23:20:15 deraadt Exp $ */ 2 3 /* 4 * This code implements the MD5 message-digest algorithm. 5 * The algorithm is due to Ron Rivest. This code was 6 * written by Colin Plumb in 1993, no copyright is claimed. 7 * This code is in the public domain; do with it what you wish. 8 * 9 * Equivalent code is available from RSA Data Security, Inc. 10 * This code has been tested against that, and is equivalent, 11 * except that you don't need to include two pages of legalese 12 * with every copy. 13 */ 14 15 #ifndef _MD5_H 16 #define _MD5_H 17 18 #define MD5_BLOCK_LENGTH 64 19 #define MD5_DIGEST_LENGTH 16 20 21 typedef struct MD5Context { 22 /* state */ 23 uint32_t state[4]; 24 /* number of bits, mod 2^64 */ 25 uint64_t count; 26 /* input buffer */ 27 uint8_t buffer[MD5_BLOCK_LENGTH]; 28 } MD5_CTX; 29 30 void MD5Init(MD5_CTX *); 31 void MD5Update(MD5_CTX *, const uint8_t *, size_t); 32 void MD5Final(uint8_t [MD5_DIGEST_LENGTH], MD5_CTX *); 33 void MD5Transform(uint32_t [4], const uint8_t [MD5_BLOCK_LENGTH]); 34 35 #endif