/*?sha1sum.c?-?print?SHA-1?Message-Digest?Algorithm
?*?Copyright?（C）?1998?1999?2000?2001?Free?Software?Foundation?Inc.
?*?Copyright?（C）?2004?g10?Code?GmbH
?*
?*?This?program?is?free?software;?you?can?redistribute?it?and/or?modify?it
?*?under?the?terms?of?the?GNU?General?Public?License?as?published?by?the
?*?Free?Software?Foundation;?either?version?2?or?（at?your?option）?any
?*?later?version.
?*
?*?This?program?is?distributed?in?the?hope?that?it?will?be?useful
?*?but?WITHOUT?ANY?WARRANTY;?without?even?the?implied?warranty?of
?*?MERCHANTABILITY?or?FITNESS?FOR?A?PARTICULAR?PURPOSE.??See?the
?*?GNU?General?Public?License?for?more?details.
?*
?*?You?should?have?received?a?copy?of?the?GNU?General?Public?License
?*?along?with?this?program;?if?not?write?to?the?Free?Software?Foundation
?*?Inc.?59?Temple?Place?-?Suite?330?Boston?MA?02111-1307?USA.
?*/

/*?SHA-1?coden?take?from?gnupg?1.3.92.

???Note?that?this?is?a?simple?tool?to?be?used?for?MS?Windows.
*/

#include?
#include?
#include?
#include?
#include?

#undef?BIG_ENDIAN_HOST
typedef?unsigned?int?u32;

/****************
?*?Rotate?a?32?bit?integer?by?n?bytes
?****************/
#if?defined（__GNUC__）?&&?defined（__i386__）
static?inline?u32?rol（?u32?x?int?n）
{
?__asm__（“roll?%%cl%0“
????????????:“=r“?（x）
????????????:“0“?（x）“c“?（n））;
?return?x;
}
#else
#define?rol（xn）?（?（（x）?<>?（32-（n）））?）
#endif


typedef?struct?{
????u32??h0h1h2h3h4;???//哈希計算后的結果是20個bit，剛好相當于5個unsigned?int（4字節）類型的數據
????u32??nblocks;
????unsigned?char?buf[64];
????int??count;
}?SHA1_CONTEXT;

?

void?sha1_init（?SHA1_CONTEXT?*hd?）?//計算前進行初始化
{
????hd->h0?=?0x67452301;
????hd->h1?=?0xefcdab89;
????hd->h2?=?0x98badcfe;
????hd->h3?=?0x10325476;
????hd->h4?=?0xc3d2e1f0;
????hd->nblocks?=?0;
????hd->count?=?0;
}


/*
?*?Transform?the?message?X?which?consists?of?16?32-bit-words
?*/
static?void
transform（?SHA1_CONTEXT?*hd?unsigned?char?*data?）
{
????u32?abcdetm;
????u32?x[16];

????/*?get?values?from?the?chaining?vars?*/
????a?=?hd->h0;
????b?=?hd->h1;
????c?=?hd->h2;
????d?=?hd->h3;
????e?=?hd->h4;

#ifdef?BIG_ENDIAN_HOST
????memcpy（?x?data?64?）;
#else
????{?int?i;
????????unsigned?char?*p2;
????????for（i=0?p2=（unsigned?char*）x;?i?????????????p2[3]?=?*data++;
????????????p2[2]?=?*data++;
????????????p2[1]?=?*data++;
????????????p2[0]?=?*data++;
????????}
????}
#endif


#define?K1??0x5A827999L
#define?K2??0x6ED9EBA1L
#define?K3??0x8F1BBCDCL
#define?K4??0xCA62C1D6L
#define?F1（xyz）???（?z?^?（?x?&?（?y?^?z?）?）?）
#define?F2（xyz）???（?x?^?y?^?z?）
#define?F3（xyz）???（?（?x?&?y?）?|?（?z?&?（?x?|?y?）?）?）
#define?F4（xyz）???（?x?^?y?^?z?）


#define?M（i）?（?tm?=???x[i&0x0f]?^?x[（i-14）&0x0f]????\
???????????????^?x[（i-8）&0x0f]?^?x[（i-3）&0x0f]??????\
????????????????（x[i&0x0f]?=?rol（tm1））?）

#define?R（abcdefkm）??do?{?e?+=?rol（

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????39936??2016-09-14?18:39??sha1sum\sha1sum\Debug\sha1sum.exe

?????文件?????326476??2016-09-14?18:39??sha1sum\sha1sum\Debug\sha1sum.ilk

?????文件?????371712??2016-09-14?18:39??sha1sum\sha1sum\Debug\sha1sum.pdb

?????文件????2359296??2016-09-16?21:02??sha1sum\sha1sum\ipch\sha1sum-9070178e\sha1sum-e04e56ae.ipch

?????文件????????672??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug\cl.command.1.tlog

?????文件???????2140??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug\CL.read.1.tlog

?????文件????????354??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug\CL.write.1.tlog

?????文件???????1320??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug\link.command.1.tlog

?????文件???????2428??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug\link.read.1.tlog

?????文件????????624??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug\link.write.1.tlog

?????文件??????22068??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug\main.obj

?????文件????????460??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug\mt.command.1.tlog

?????文件????????644??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug\mt.read.1.tlog

?????文件????????284??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug\mt.write.1.tlog

?????文件????????381??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug\sha1sum.exe.intermediate.manifest

?????文件?????????63??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug\sha1sum.lastbuildstate

?????文件???????3155??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug\sha1sum.log

?????文件??????52224??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug\vc100.idb

?????文件??????69632??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug\vc100.pdb

?????文件??????10667??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\main.cpp

?????文件???????3221??2016-09-14?18:35??sha1sum\sha1sum\sha1sum\sha1sum.vcxproj

?????文件????????953??2016-09-14?18:35??sha1sum\sha1sum\sha1sum\sha1sum.vcxproj.filters

?????文件????????143??2016-09-14?18:34??sha1sum\sha1sum\sha1sum\sha1sum.vcxproj.user

?????文件????2248704??2016-09-16?21:05??sha1sum\sha1sum\sha1sum.sdf

?????文件????????888??2016-09-14?18:34??sha1sum\sha1sum\sha1sum.sln

????..A..H.?????18432??2016-09-16?21:05??sha1sum\sha1sum\sha1sum.suo

?????目錄??????????0??2016-09-16?21:02??sha1sum\sha1sum\ipch\sha1sum-9070178e

?????目錄??????????0??2016-09-14?18:39??sha1sum\sha1sum\sha1sum\Debug

?????目錄??????????0??2016-09-14?18:39??sha1sum\sha1sum\Debug

?????目錄??????????0??2016-09-16?21:02??sha1sum\sha1sum\ipch

............此處省略6個文件信息