1 /* $Id: pc_md5.h,v 1.5 2006/08/11 16:14:34 tm Exp $ 2 * 3 * Header file for the PDFlib MD5 message digest routines 4 * 5 */ 6 7 /* This is a slightly modified version of the RSA reference 8 * implementation for MD5, which originally contained 9 * the following copyright notice: 10 */ 11 12 /* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All 13 rights reserved. 14 15 License to copy and use this software is granted provided that it 16 is identified as the "RSA Data Security, Inc. MD5 Message-Digest 17 Algorithm" in all material mentioning or referencing this software 18 or this function. 19 20 License is also granted to make and use derivative works provided 21 that such works are identified as "derived from the RSA Data 22 Security, Inc. MD5 Message-Digest Algorithm" in all material 23 mentioning or referencing the derived work. 24 25 RSA Data Security, Inc. makes no representations concerning either 26 the merchantability of this software or the suitability of this 27 software for any particular purpose. It is provided "as is" 28 without express or implied warranty of any kind. 29 30 These notices must be retained in any copies of any part of this 31 documentation and/or software. 32 */ 33 34 35 /* we prefix our MD5 function and structure names with "pdc_", so you can 36 * link your program with another MD5 lib without troubles. 37 */ 38 #define MD5_Init pdc_MD5_Init 39 #define MD5_Update pdc_MD5_Update 40 #define MD5_Final pdc_MD5_Final 41 42 #define MD5_CTX pdc_MD5_CTX 43 44 typedef unsigned int MD5_UINT4; 45 46 #define MD5_DIGEST_LENGTH 16 47 48 49 /* MD5 context. */ 50 typedef struct { 51 MD5_UINT4 state[4]; /* state (ABCD) */ 52 MD5_UINT4 count[2]; /* number of bits, modulo 2^64 (lsb first) */ 53 unsigned char buffer[64]; /* input buffer */ 54 } MD5_CTX; 55 56 void MD5_Init(MD5_CTX *context); 57 void MD5_Update( 58 MD5_CTX *context, const unsigned char *input, unsigned int inputLen); 59 void MD5_Final(unsigned char digest[MD5_DIGEST_LENGTH], MD5_CTX *context); 60