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Annotation of truecrypt/crypto/md5.h, revision 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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