续上文(1)

〖Encrypt〗
 
上一篇|下一篇|回文章  分类讨论区   全部讨论区   本讨论区  
 
  发信人: blizzard (大炮), 信区: Encrypt
标  题: 续上文(1)
发信站: 武汉白云黄鹤站 (Wed Jan  5 23:16:31 2000), 站内信件


APPENDIX A - Reference Implementation
   This appendix contains the following files taken from RSAREF: A
   Cryptographic Toolkit for Privacy-Enhanced Mail:
     global.h -- global header file
     md5.h -- header file for MD5
     md5c.c -- source code for MD5
   For more information on RSAREF, send email to <rsaref@rsa.com>.
   The appendix also includes the following file:
     mddriver.c -- test driver for MD2, MD4 and MD5
   The driver compiles for MD5 by default but can compile for MD2 or MD4
   if the symbol MD is defined on the C compiler command line as 2 or 4.
   The implementation is portable and should work on many different
   plaforms. However, it is not difficult to optimize the implementation
   on particular platforms, an exercise left to the reader. For example,
   on \"little-endian\" platforms where the lowest-addressed byte in a 32-
   bit word is the least significant and there are no alignment
   restrictions, the call to Decode in MD5Transform can be replaced with
   a typecast.
A.1 global.h
/* GLOBAL.H - RSAREF types and constants
 */
/* PROTOTYPES should be set to one if and only if the compiler supports
  function argument prototyping.
The following makes PROTOTYPES default to 0 if it has not already
  been defined with C compiler flags.
 */
#ifndef PROTOTYPES
#define PROTOTYPES 0
#endif
/* POINTER defines a generic pointer type */
typedef unsigned char *POINTER;
/* UINT2 defines a two byte word */
typedef unsigned short int UINT2;
/* UINT4 defines a four byte word */
typedef unsigned long int UINT4;
/* PROTO_LIST is defined depending on how PROTOTYPES is defined above.
If using PROTOTYPES, then PROTO_LIST returns the list, otherwise it
  returns an empty list.
 */
#if PROTOTYPES
#define PROTO_LIST(list) list
#else
#define PROTO_LIST(list) ()
#endif
A.2 md5.h
/* MD5.H - header file for MD5C.C
 */
/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
rights reserved.
License to copy and use this software is granted provided that it
is identified as the \"RSA Data Security, Inc. MD5 Message-Digest
Algorithm\" in all material mentioning or referencing this software
or this function.
License is also granted to make and use derivative works provided
that such works are identified as \"derived from the RSA Data
Security, Inc. MD5 Message-Digest Algorithm\" in all material
mentioning or referencing the derived work.
RSA Data Security, Inc. makes no representations concerning either
the merchantability of this software or the suitability of this
software for any particular purpose. It is provided \"as is\"
without express or implied warranty of any kind.
These notices must be retained in any copies of any part of this
documentation and/or software.
 */
/* MD5 context. */
typedef struct {
  UINT4 state[4];                                   /* state (ABCD) */
  UINT4 count[2];        /* number of bits, modulo 2^64 (lsb first) */
  unsigned char buffer[64];                         /* input buffer */
} MD5_CTX;
void MD5Init PROTO_LIST ((MD5_CTX *));
void MD5Update PROTO_LIST
  ((MD5_CTX *, unsigned char *, unsigned int));
void MD5Final PROTO_LIST ((unsigned char [16], MD5_CTX *));
A.3 md5c.c
/* MD5C.C - RSA Data Security, Inc., MD5 message-digest algorithm
 */
/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
rights reserved.
License to copy and use this software is granted provided that it
is identified as the \"RSA Data Security, Inc. MD5 Message-Digest
Algorithm\" in all material mentioning or referencing this software
or this function.
License is also granted to make and use derivative works provided
that such works are identified as \"derived from the RSA Data
Security, Inc. MD5 Message-Digest Algorithm\" in all material
mentioning or referencing the derived work.
RSA Data Security, Inc. makes no representations concerning either
the merchantability of this software or the suitability of this
software for any particular purpose. It is provided \"as is\"
without express or implied warranty of any kind.


--
I\'m Sailing;  I\'m Flying
       Through The Dark Night;  Far Away
I\'m Dying;    Forever Crying
          To Be With You;     To Be Free！
                                                                  

※ 来源:．武汉白云黄鹤站 bbs.whnet.edu.cn．[FROM: 203.95.7.153]


 
 
 
  
 
上一篇|下一篇|回文章  分类讨论区   全部讨论区   本讨论区  
 
Copyright(c)2000 白云黄鹤BBS站 All Rights Reserved.