loadrunner MD5加密

生成小写32位的字符串：
使用方法见： LoadRunner中，对字符串进行Base64编码

#ifndef MD5_H#define MD5_H#ifdef __alphatypedef unsigned int uint32;#elsetypedef unsigned long uint32;#endifstruct MD5Context {        uint32 buf[4];        uint32 bits[2];        unsigned char in[64];};extern void MD5Init();extern void MD5Update();extern void MD5Final();extern void MD5Transform();typedef struct MD5Context MD5_CTX;#endif#ifdef sgi#define HIGHFIRST#endif#ifdef sun#define HIGHFIRST#endif#ifndef HIGHFIRST#define byteReverse(buf, len)    /* Nothing */#elsevoid byteReverse(buf, longs)unsigned char *buf; unsigned longs;{    uint32 t;    do {    t = (uint32) ((unsigned) buf[3] << 8 | buf[2]) << 16 |((unsigned) buf[1] << 8 | buf[0]);    *(uint32 *) buf = t;    buf += 4;    } while (--longs);}#endifvoid MD5Init(ctx)struct MD5Context *ctx;{    ctx->buf[0] = 0x67452301;    ctx->buf[1] = 0xefcdab89;    ctx->buf[2] = 0x98badcfe;    ctx->buf[3] = 0x10325476;    ctx->bits[0] = 0;    ctx->bits[1] = 0;}void MD5Update(ctx, buf, len) struct MD5Context *ctx; unsigned char *buf; unsigned len;{    uint32 t;    t = ctx->bits[0];    if ((ctx->bits[0] = t + ((uint32) len << 3)) < t)    ctx->bits[1]++;    ctx->bits[1] += len >> 29;    t = (t >> 3) & 0x3f;    if (t) {    unsigned char *p = (unsigned char *) ctx->in + t;    t = 64 - t;    if (len < t) {        memcpy(p, buf, len);        return;    }    memcpy(p, buf, t);    byteReverse(ctx->in, 16);    MD5Transform(ctx->buf, (uint32 *) ctx->in);    buf += t;    len -= t;    }    while (len >= 64) {    memcpy(ctx->in, buf, 64);    byteReverse(ctx->in, 16);    MD5Transform(ctx->buf, (uint32 *) ctx->in);    buf += 64;    len -= 64;    }    memcpy(ctx->in, buf, len);}void MD5Final(digest, ctx)    unsigned char digest[16]; struct MD5Context *ctx;{    unsigned count;    unsigned char *p;    count = (ctx->bits[0] >> 3) & 0x3F;    p = ctx->in + count;    *p++ = 0x80;    count = 64 - 1 - count;    if (count < 8) {    memset(p, 0, count);    byteReverse(ctx->in, 16);    MD5Transform(ctx->buf, (uint32 *) ctx->in);    memset(ctx->in, 0, 56);    } else {    memset(p, 0, count - 8);    }    byteReverse(ctx->in, 14);    ((uint32 *) ctx->in)[14] = ctx->bits[0];    ((uint32 *) ctx->in)[15] = ctx->bits[1];    MD5Transform(ctx->buf, (uint32 *) ctx->in);    byteReverse((unsigned char *) ctx->buf, 4);    memcpy(digest, ctx->buf, 16);    memset(ctx, 0, sizeof(ctx));}#define F1(x, y, z) (z ^ (x & (y ^ z)))#define F2(x, y, z) F1(z, x, y)#define F3(x, y, z) (x ^ y ^ z)#define F4(x, y, z) (y ^ (x | ~z))#define MD5STEP(f, w, x, y, z, data, s) ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )void MD5Transform(buf, in)    uint32 buf[4]; uint32 in[16];{    register uint32 a, b, c, d;    a = buf[0];    b = buf[1];    c = buf[2];    d = buf[3];    MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);    MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);    MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);    MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);    MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);    MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);    MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);    MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);    MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);    MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);    MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);    MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);    MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);    MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);    MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);    MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);    MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);    MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);    MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);    MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);    MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);    MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);    MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);    MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);    MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);    MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);    MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);    MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);    MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);    MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);    MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);    MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);    MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);    MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);    MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);    MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);    MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);    MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);    MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);    MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);    MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);    MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);    MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);    MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);    MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);    MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);    MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);    MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);    MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);    MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);    MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);    MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);    MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);    MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);    MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);    MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);    MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);    MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);    MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);    MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);    MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);    MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);    MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);    MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);    buf[0] += a;    buf[1] += b;    buf[2] += c;    buf[3] += d;}void GetMd5FromString(const char* s,char* resStr){     struct MD5Context md5c;     unsigned char ss[16];     char subStr[3];     int i;     MD5Init( &md5c );     MD5Update( &md5c, s, strlen(s) );     MD5Final( ss, &md5c );     strcpy(resStr,"");     for( i=0; i<16; i++ )     {         sprintf(subStr, "%02x", ss[i] );         itoa(ss[i],subStr,16);         if (strlen(subStr)==1) {             strcat(resStr,"0");         }         strcat(resStr,subStr);     }     strcat(resStr,"\0");}