1 /* 2 *********************************************************************** 3 ** md5.h -- header file for implementation of MD5 ** 4 ** RSA Data Security, Inc. MD5 Message-Digest Algorithm ** 5 ** Created: 2/17/90 RLR ** 6 ** Revised: 12/27/90 SRD,AJ,BSK,JT Reference C version ** 7 ** Revised (for MD5): RLR 4/27/91 ** 8 ** -- G modified to have y&~z instead of y&z ** 9 ** -- FF, GG, HH modified to add in last register done ** 10 ** -- Access pattern: round 2 works mod 5, round 3 works mod 3 ** 11 ** -- distinct additive constant for each step ** 12 ** -- round 4 added, working mod 7 ** 13 *********************************************************************** 14 */ 15 16 /* 17 *********************************************************************** 18 ** Copyright (C) 1990, RSA Data Security, Inc. All rights reserved. ** 19 ** ** 20 ** License to copy and use this software is granted provided that ** 21 ** it is identified as the "RSA Data Security, Inc. MD5 Message- ** 22 ** Digest Algorithm" in all material mentioning or referencing this ** 23 ** software or this function. ** 24 ** ** 25 ** License is also granted to make and use derivative works ** 26 ** provided that such works are identified as "derived from the RSA ** 27 ** Data Security, Inc. MD5 Message-Digest Algorithm" in all ** 28 ** material mentioning or referencing the derived work. ** 29 ** ** 30 ** RSA Data Security, Inc. makes no representations concerning ** 31 ** either the merchantability of this software or the suitability ** 32 ** of this software for any particular purpose. It is provided "as ** 33 ** is" without express or implied warranty of any kind. ** 34 ** ** 35 ** These notices must be retained in any copies of any part of this ** 36 ** documentation and/or software. ** 37 *********************************************************************** 38 */ 39 40 #ifndef MD5_H 41 #define MD5_H 42 43 /* Data structure for MD5 (Message-Digest) computation */ 44 typedef struct { 45 u32_t i[2]; /* number of _bits_ handled mod 2^64 */ 46 u32_t buf[4]; /* scratch buffer */ 47 unsigned char in[64]; /* input buffer */ 48 unsigned char digest[16]; /* actual digest after MD5Final call */ 49 } MD5_CTX; 50 51 void MD5Init ( MD5_CTX *mdContext); 52 void MD5Update( MD5_CTX *mdContext, unsigned char *inBuf, unsigned int inLen); 53 void MD5Final ( unsigned char hash[], MD5_CTX *mdContext); 54 55 #endif /* MD5_H */ 56
