/*
??Copyright?（C）?1999?2000?2002?Aladdin?Enterprises.??All?rights?reserved.

??This?software?is?provided?‘a(chǎn)s-is‘?without?any?express?or?implied
??warranty.??In?no?event?will?the?authors?be?held?liable?for?any?damages
??arising?from?the?use?of?this?software.

??Permission?is?granted?to?anyone?to?use?this?software?for?any?purpose
??including?commercial?applications?and?to?alter?it?and?redistribute?it
??freely?subject?to?the?following?restrictions:

??1.?The?origin?of?this?software?must?not?be?misrepresented;?you?must?not
?????claim?that?you?wrote?the?original?software.?If?you?use?this?software
?????in?a?product?an?acknowledgment?in?the?product?documentation?would?be
?????appreciated?but?is?not?required.
??2.?Altered?source?versions?must?be?plainly?marked?as?such?and?must?not?be
?????misrepresented?as?being?the?original?software.
??3.?This?notice?may?not?be?removed?or?altered?from?any?source?distribution.

??L.?Peter?Deutsch
??ghost@aladdin.com

?*/
/*?$Id:?md5.cv?1.6?2002/04/13?19:20:28?lpd?Exp?$?*/
/*
??Independent?implementation?of?MD5?（RFC?1321）.

??This?code?implements?the?MD5?Algorithm?defined?in?RFC?1321?whose
??text?is?available?at
	http://www.ietf.org/rfc/rfc1321.txt
??The?code?is?derived?from?the?text?of?the?RFC?including?the?test?suite
??（section?A.5）?but?excluding?the?rest?of?Appendix?A.??It?does?not?include
??any?code?or?documentation?that?is?identified?in?the?RFC?as?being
??copyrighted.

??The?original?and?principal?author?of?md5.c?is?L.?Peter?Deutsch
??.??Other?authors?are?noted?in?the?change?history
??that?follows?（in?reverse?chronological?order）:

??2002-04-13?lpd?Clarified?derivation?from?RFC?1321;?now?handles?byte?order
	either?statically?or?dynamically;?added?missing?#include?
	in?library.
??2002-03-11?lpd?Corrected?argument?list?for?main（）?and?added?int?return
	type?in?test?program?and?T?value?program.
??2002-02-21?lpd?Added?missing?#include??in?test?program.
??2000-07-03?lpd?Patched?to?eliminate?warnings?about?“constant?is
	unsigned?in?ANSI?C?signed?in?traditional“;?made?test?program
	self-checking.
??1999-11-04?lpd?Edited?comments?slightly?for?automatic?TOC?extraction.
??1999-10-18?lpd?Fixed?typo?in?header?comment?（ansi2knr?rather?than?md5）.
??1999-05-03?lpd?Original?version.
?*/

#include?“md5.h“
#include?

#undef?BYTE_ORDER	/*?1?=?big-endian?-1?=?little-endian?0?=?unknown?*/
#ifdef?ARCH_IS_BIG_ENDIAN
#??define?BYTE_ORDER?（ARCH_IS_BIG_ENDIAN???1?:?-1）
#else
#??define?BYTE_ORDER?0
#endif

#define?T_MASK?（（md5_word_t）~0）
#define?T1?/*?0xd76aa478?*/?（T_MASK?^?0x28955b87）
#define?T2?/*?0xe8c7b756?*/?（T_MASK?^?0x173848a9）
#define?T3????0x242070db
#define?T4?/*?0xc1bdceee?*/?（T_MASK?^?0x3e423111）
#define?T5?/*?0xf57c0faf?*/?（T_MASK?^?0x0a83f050）
#define?T6????0x4787c62a
#define?T7?/*?0xa8304613?*/?（T_MASK?^?0x57cfb9ec）
#define?T8?/*?0xfd469501?*/?（T_MASK?^?0x02b96afe）
#define?T9????0x698098d8
#define?T10?/*?0x8b44f7af?*/?（T_MASK?^?0x74bb0850）
#define?T11?/*?0xffff5bb1