/*$6
?+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
?+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
?*/
#include?
#include?“sha1.h“

#define?SHA1HANDSOFF
#define?rol（value?bits）?（（（value）?<>?（32?-?（bits））））

/*?blk0（）?and?blk（）?perform?the?initial?expand.?*/
/*?I?got?the?idea?of?expanding?during?the?round?function?from?SSLeay?*/
#if?BYTE_ORDER?==?LITTLE_ENDIAN
#define?blk0（i）?（block->l[i]?=?（rol（block->l[i]24）&0xFF00FF00）?\
????|（rol（block->l[i]8）&0x00FF00FF））
#else
#define?blk0（i）?block->l[i]
#endif
#define?blk（i）?（block->l[i&15]?=?rol（block->l[（i+13）&15]^block->l[（i+8）&15]?\
????^block->l[（i+2）&15]^block->l[i&15]1））

/*?（R0+R1）?R2?R3?R4?are?the?different?operations?used?in?SHA1?*/
#define?R0（vwxyzi）?z+=（（w&（x^y））^y）+blk0（i）+0x5A827999+rol（v5）;w=rol（w30）;
#define?R1（vwxyzi）?z+=（（w&（x^y））^y）+blk（i）+0x5A827999+rol（v5）;w=rol（w30）;
#define?R2（vwxyzi）?z+=（w^x^y）+blk（i）+0x6ED9EBA1+rol（v5）;w=rol（w30）;
#define?R3（vwxyzi）?z+=（（（w|x）&y）|（w&x））+blk（i）+0x8F1BBCDC+rol（v5）;w=rol（w30）;
#define?R4（vwxyzi）?z+=（w^x^y）+blk（i）+0xCA62C1D6+rol（v5）;w=rol（w30）;


/*?Hash?a?single?512-bit?block.?This?is?the?core?of?the?algorithm.?*/

void?SHA1Transform（unsigned?long?state[5]?unsigned?char?buffer[64]）
{
unsigned?long?a?b?c?d?e;
typedef?union?{
????unsigned?char?c[64];
????unsigned?long?l[16];
}?CHAR64LONG16;
CHAR64LONG16*?block;
#ifdef?SHA1HANDSOFF
static?unsigned?char?workspace[64];
????block?=?（CHAR64LONG16*）workspace;
????memcpy（block?buffer?64）;
#else
????block?=?（CHAR64LONG16*）buffer;
#endif
????/*?Copy?context->state[]?to?working?vars?*/
????a?=?state[0];
????b?=?state[1];
????c?=?state[2];
????d?=?state[3];
????e?=?state[4];
????/*?4?rounds?of?20?operations?each.?Loop?unrolled.?*/
????R0（abcde?0）;?R0（eabcd?1）;?R0（deabc?2）;?R0（cdeab?3）;
????R0（bcdea?4）;?R0（abcde?5）;?R0（eabcd?6）;?R0（deabc?7）;
????R0（cdeab?8）;?R0（bcdea?9）;?R0（abcde10）;?R0（eabcd11）;
????R0（deabc12）;?R0（cdeab13）;?R0（bcdea14）;?R0（abcde15）;
????R1（eabcd16）;?R1（deabc17）;?R1（cdeab18）;?R1（bcdea19）;
????R2（abcde20）;?R2（eabcd21）;?R2（deabc22）;?R2（cdeab23）;
????R2（bcdea24）;?R2（abcde25）;?R2（eabcd26）;?R2（deabc27）;
????R2（cdeab28）;?R2（bcdea29）;?R2（abcde30）;?R2（eabcd31）;
????R2（deabc32）;?R2（cdeab33）;?R2（bcdea34）;?R2（abcde35）;
????R2（eabcd36）;?R2（deabc37）;?R2（cdeab38）;?R2（bcdea39）;
????R3（abcde40）;?R3（eabcd41）;?R3（deabc42）;?R3（cdeab43）;
????R3（bcdea44）;?R3（abcde45）;?R3（eabcd46）;?R3（deabc47）;
????R3（cdeab48）;?R3（bcdea49）;?R3（abcde50）;?R3（eabcd51）;
????R3（deabc52）;?R3（c

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????6045??2014-10-24?20:23??sha1\sha1.c

?????文件???????1016??2014-10-24?20:23??sha1\sha1.h

?????目錄??????????0??2014-10-26?16:26??sha1

-----------?---------??----------?-----??----

?????????????????7061????????????????????3