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Annotation of truecrypt/crypto/md5.h, revision 1.1.1.1

1.1       root        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:  * Edited 7 May 93 by CP to change the interface to match that
                     18:  * of the MD5 routines in RSAREF.  Due to this alteration, this
                     19:  * code is "derived from the RSA Data Security, Inc. MD5 Message-
                     20:  * Digest Algorithm".  (See below.)  Also added argument names
                     21:  * to the prototypes.
                     22:  */
                     23: 
                     24: /*
                     25:  ***********************************************************************
                     26:  ** Copyright (C) 1990, RSA Data Security, Inc. All rights reserved.  **
                     27:  **                                                                   **
                     28:  ** License to copy and use this software is granted provided that    **
                     29:  ** it is identified as the "RSA Data Security, Inc. MD5 Message-     **
                     30:  ** Digest Algorithm" in all material mentioning or referencing this  **
                     31:  ** software or this function.                                        **
                     32:  **                                                                   **
                     33:  ** License is also granted to make and use derivative works          **
                     34:  ** provided that such works are identified as "derived from the RSA  **
                     35:  ** Data Security, Inc. MD5 Message-Digest Algorithm" in all          **
                     36:  ** material mentioning or referencing the derived work.              **
                     37:  **                                                                   **
                     38:  ** RSA Data Security, Inc. makes no representations concerning       **
                     39:  ** either the merchantability of this software or the suitability    **
                     40:  ** of this software for any particular purpose.  It is provided "as  **
                     41:  ** is" without express or implied warranty of any kind.              **
                     42:  **                                                                   **
                     43:  ** These notices must be retained in any copies of any part of this  **
                     44:  ** documentation and/or software.                                    **
                     45:  ***********************************************************************
                     46:  */
                     47: 
                     48: /* typedef a 32-bit type */
                     49: #ifdef __alpha
                     50: typedef unsigned int UINT4;
                     51: #else
                     52: typedef unsigned long int UINT4;
                     53: #endif
                     54: 
                     55: /* Data structure for MD5 (Message-Digest) computation */
                     56: typedef struct {
                     57:   UINT4 buf[4];                                    /* scratch buffer */
                     58:   UINT4 i[2];                   /* number of _bits_ handled mod 2^64 */
                     59:   unsigned char in[64];                              /* input buffer */
                     60: } MD5_CTX;
                     61: 
                     62: void _cdecl MD5Init(MD5_CTX *mdContext);
                     63: void _cdecl MD5Update(MD5_CTX *mdContext, unsigned char *bug, unsigned int len);
                     64: void _cdecl MD5Final(unsigned char digest[16], MD5_CTX *mdContext);
                     65: void Transform(UINT4 *buf, UINT4 *in);
                     66: 

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