#include <stdio.h>
#include <stdlib.h>
#include<string.h>
#define SHA256_ROTL(a,b) (((a>>(32-b))&(0x7fffffff>>(31-b)))|(a<<b))
#define SHA256_SR(a,b) ((a>>b)&(0x7fffffff>>(b-1)))
#define SHA256_Ch(x,y,z) ((x&y)^((~x)&z))
#define SHA256_Maj(x,y,z) ((x&y)^(x&z)^(y&z))
#define SHA256_E0(x) (SHA256_ROTL(x,30)^SHA256_ROTL(x,19)^SHA256_ROTL(x,10))
#define SHA256_E1(x) (SHA256_ROTL(x,26)^SHA256_ROTL(x,21)^SHA256_ROTL(x,7))
#define SHA256_O0(x) (SHA256_ROTL(x,25)^SHA256_ROTL(x,14)^SHA256_SR(x,3))
#define SHA256_O1(x) (SHA256_ROTL(x,15)^SHA256_ROTL(x,13)^SHA256_SR(x,10))
extern char* StrSHA256(const char* str,long length, char* sha256){
char *pp, *ppend;
long l, i, W[64], T1, T2, A, B, C, D, E, F, G, H, H0, H1, H2, H3, H4, H5, H6, H7;
H0 = 0x6a09e667, H1 = 0xbb67ae85, H2 = 0x3c6ef372, H3 = 0xa54ff53a;
H4 = 0x510e527f, H5 = 0x9b05688c, H6 = 0x1f83d9ab, H7 = 0x5be0cd19;
long K[64] = {
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
};
l = length + ((length % 64 >= 56) ? (128 - length % 64) : (64 - length % 64));
if (!(pp = (char*)malloc((unsigned long)l ))) return 0;
for (i = 0; i < length; pp[i + 3 - 2 * (i % 4)] = str[i], i++);
for (pp[i + 3 - 2 * (i % 4)] = 128, i++; i < l; pp[i + 3 - 2 * (i % 4)] = 0, i++);
*((long*)(pp + l - 4)) = length << 3;
*((long*)(pp + l - 8)) = length >> 29;
for (ppend = pp + l; pp < ppend; pp += 64){
for (i = 0; i < 16; W[i] = ((long*)pp)[i], i++);
for (i
= 16; i < 64; W[i] = (SHA256_O1(W[i - 2]) + W[i - 7] + SHA256_O0(W[i - 15]) + W[i - 16]), i++);
A = H0, B = H1, C = H2, D = H3, E = H4, F = H5, G = H6, H = H7;
for (i = 0; i < 64; i++){
T1 = H + SHA256_E1(E) + SHA256_Ch(E, F, G) + K[i] + W[i];
T2 = SHA256_E0(A) + SHA256_Maj(A, B, C);
H = G, G = F, F = E, E = D + T1, D = C, C = B, B = A, A = T1 + T2;
}
H0 += A, H1 += B, H2 += C, H3 += D, H4 += E, H5 += F, H6 += G, H7 += H;
}
free(pp - l);
sprintf(sha256, "%08X%08X%08X%08X%08X%08X%08X%08X", H0, H1, H2, H3, H4, H5, H6, H7);
return sha256;
}
extern char* FileSHA256( char* file, char* sha256){
char *p=new char[20];
strcpy(p,"文件打开失败！");
FILE* fh;
char* addlp, T[64];
long addlsize, j, W[64], T1, T2, A, B, C, D, E, F, G, H, H0, H1, H2, H3, H4, H5, H6, H7;
long length, i, cpys;
void *pp, *ppend;
H0 = 0x6a09e667, H1 = 0xbb67ae85, H2 = 0x3c6ef372, H3 = 0xa54ff53a;
H4 = 0x510e527f, H5 = 0x9b05688c, H6 = 0x1f83d9ab, H7 = 0x5be0cd19;
long K[64] = {
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
};
fh = fopen(file, "rb");
if(fh==NULL){
return p;}
fseek(fh, 0, SEEK_END);
length = ftell(fh);
addlsize = (56 - length % 64 > 0) ? (64) : (128);
if (!(addlp = (char*)malloc(addlsize))) return 0;
cpys = ((length - (56 - length % 64)) > 0) ? (length - length % 64) : (0);
j = (long)(length - cpys);
if (!(pp = (char*)malloc(j))) return 0;
fseek(fh, -j, SEEK_END);
fread(pp, 1, j, fh);
for (i = 0; i < j; addlp[i + 3 - 2 * (i % 4)] = ((char*)pp)[i], i++);
free(pp);
for (addlp[i + 3 - 2 * (i % 4)] = 128, i++; i < addlsize; addlp[i + 3 - 2 * (i % 4)] = 0, i++);
*((long*)(addlp + addlsize - 4)) = length << 3;
*((long*)(addlp + addlsize - 8)) = length >> 29;
for (rewind(fh); 64 == fread(W, 1, 64, fh);){
for (i = 0; i < 64; T[i + 3 - 2 * (i % 4)] = ((char*)W)[i], i++);
for (i = 0; i < 16; W[i] = ((long*)T)[i], i++);
for (i = 16; i < 64; W[i] = (SHA256_O1(W[i - 2]) + W[i - 7] + SHA256_O0(W[i - 15]) + W[i - 16]), i++);
A = H0, B = H1, C = H2, D = H3, E = H4, F = H5, G = H6, H = H7;
for (i = 0; i < 64; i++){
T1 = H + SHA256_E1(E) + SHA256_Ch(E, F, G) + K[i] + W[i];
T2 = SHA256_E0(A) + SHA256_Maj(A, B, C);
H = G, G = F, F = E, E = D + T1, D = C, C = B, B = A, A = T1 + T2;
}
H0 += A, H1 += B, H2 += C, H3 += D, H4 += E, H5 += F, H6 += G, H7 += H;
}
for (pp = addlp, ppend = addlp + addlsize; pp < ppend; pp = (long*)pp + 16){
for (i = 0; i < 16; W[i] = ((long*)pp)[i], i++);
for (i = 16; i < 64; W[i] = (SHA256_O1(W[i - 2]) + W[i - 7] + SHA256_O0(W[i - 15]) + W[i - 16]), i++);
A = H0, B = H1, C = H2, D = H3, E = H4, F = H5, G = H6, H = H7;
for (i = 0; i < 64; i++){
T1 = H + SHA256_E1(E) + SHA256_Ch(E, F, G) + K[i] + W[i];
T2 = SHA256_E0(A) + SHA256_Maj(A, B, C);
H = G, G = F, F = E, E = D + T1, D = C, C = B, B = A, A = T1 + T2;
}
H0 += A, H1 += B, H2 += C, H3 += D, H4 += E, H5 += F, H6 += G, H7 += H;
}
free(addlp); fclose(fh);
sprintf(sha256, "%08X%08X%08X%08X%08X%08X%08X%08X", H0, H1, H2, H3, H4, H5, H6, H7);
return sha256;
}
sha1,sha256算法的实现.zip （32个子文件） 
sha最终 
sha最终.dsw 522B main.ncb 33KB Debug sha最终.pch 3.39MB vc60.pdb 76KB sha1.pdb 25KB main.pch 213KB sha1.pch 213KB main.pdb 25KB sha最终.ilk 200KB vc60.idb 145KB
sha最终.exe 204KB main.obj 16KB sha256.obj 10KB sha1.obj 17KB sha最终.pdb 505KB sha最终.dsp 4KB sha1.opt 48KB sha最终.plg 929B main.opt 48KB sha最终.ncb 57KB main.cpp 3KB sha1.dsw 516B main.dsw 516B sha256.cpp 6KB sha最终.opt 48KB main.dsp 3KB sha1.dsp 3KB sha.h 459B main.plg 1KB sha1.cpp 6KB sha1.plg 1KB sha1.ncb 41KB资源评论
