www.gusucode.com > 一个VC++模板类源码程序 > 一个VC++模板类/CommonLib.665660/CommonLib.665660/XMD5.cpp
//--------------------------------------------------------------------------- #pragma hdrstop #include "XMD5.h" //--------------------------------------------------------------------------- #pragma package(smart_init) namespace zdhsoft { #define S11 7 #define S12 12 #define S13 17 #define S14 22 #define S21 5 #define S22 9 #define S23 14 #define S24 20 #define S31 4 #define S32 11 #define S33 16 #define S34 23 #define S41 6 #define S42 10 #define S43 15 #define S44 21 XDWord XMD5::F(XDWord X, XDWord Y, XDWord Z) { return (X&Y)|((~X)&Z); } XDWord XMD5::G(XDWord X, XDWord Y, XDWord Z) { return (X&Z)|(Y&(~Z)); } XDWord XMD5::H(XDWord X, XDWord Y, XDWord Z) { return X^Y^Z; } XDWord XMD5::I(XDWord X, XDWord Y, XDWord Z) { return Y^(X|(~Z)); } XDWord XMD5::ROTATE_LEFT(XDWord X,XDWord N) { return (X<<N)|(X>>(32-N)); } XDWord XMD5::FF(XDWord A,XDWord B,XDWord C,XDWord D,XDWord X,XDWord L,XDWord AC) { A+=F(B,C,D)+X+AC; A=ROTATE_LEFT(A,L); return A+B; } XDWord XMD5::GG(XDWord A,XDWord B,XDWord C,XDWord D,XDWord X,XDWord L,XDWord AC) { A+=G(B,C,D)+X+AC; A=ROTATE_LEFT(A,L); return A+B; } XDWord XMD5::HH(XDWord A,XDWord B,XDWord C,XDWord D,XDWord X,XDWord L,XDWord AC) { A+=H(B,C,D)+X+AC; A=ROTATE_LEFT(A,L); return A+B; } XDWord XMD5::II(XDWord A,XDWord B,XDWord C,XDWord D,XDWord X,XDWord L,XDWord AC) { A+=I(B,C,D)+X+AC; A=ROTATE_LEFT(A,L); return A+B; } void XMD5::MD5Init() { FContext.count[0]=0; FContext.count[1]=0; FContext.state[0]=0x67452301L; FContext.state[1]=0xefcdab89L; FContext.state[2]=0x98badcfeL; FContext.state[3]=0x10325476L; } void XMD5::MD5Update(XByte * lpInput,XDWord dwLength) { XDWord i, index, partLen; index = (FContext.count[0] >> 3) & 0x3F; XDWord tmp1,tmp2; tmp1=dwLength<<3; tmp2=tmp1+FContext.count[0]; FContext.count[0]=tmp2; if(tmp2<tmp1) { FContext.count[1]++; } FContext.count[1]+=dwLength>>29; partLen = 64 - index; if(dwLength>=partLen) { MD5MemCpy(&FContext.buff[index],lpInput,partLen); MD5Transform(FContext.buff); for(i=partLen;i+63<dwLength;i+=64) { MD5Transform(&lpInput[i]); } index=0; } else { i=0; } MD5MemCpy(&FContext.buff[index],&lpInput[i],dwLength-i); } void XMD5::MD5MemSet(XByte * lpOutput, XByte btValue, XDWord dwLength) { for(XDWord i=0;i<dwLength;i++) { *lpOutput=btValue; lpOutput++; } } void XMD5::MD5MemCpy(XByte * lpOutput, XByte * lpInput, XDWord dwLength) { for(XDWord i=0;i<dwLength;i++) { *lpOutput=*lpInput; lpOutput++; lpInput++; } } void XMD5::MD5Transform (XByte *lpInput) { //UINT4 a = state[0], b = state[1], c = state[2], d = state[3], x[16]; XDWord a,b,c,d,x[16]; a=FContext.state[0]; b=FContext.state[1]; c=FContext.state[2]; d=FContext.state[3]; Decode (x, lpInput, 64); /* Round 1 */ a = FF(a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */ d = FF(d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */ c = FF(c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */ b = FF(b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */ a = FF(a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */ d = FF(d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */ c = FF(c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */ b = FF(b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */ a = FF(a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */ d = FF(d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */ c = FF(c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */ b = FF(b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */ a = FF(a, b, c, d, x[12], S11, 0x6b901122); /* 13 */ d = FF(d, a, b, c, x[13], S12, 0xfd987193); /* 14 */ c = FF(c, d, a, b, x[14], S13, 0xa679438e); /* 15 */ b = FF(b, c, d, a, x[15], S14, 0x49b40821); /* 16 */ /* Round 2 */ a = GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */ d = GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */ c = GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */ b = GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */ a = GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */ d = GG (d, a, b, c, x[10], S22, 0x2441453); /* 22 */ c = GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */ b = GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */ a = GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */ d = GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */ c = GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */ b = GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */ a = GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */ d = GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */ c = GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */ b = GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */ /* Round 3 */ a = HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */ d = HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */ c = HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */ b = HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */ a = HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */ d = HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */ c = HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */ b = HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */ a = HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */ d = HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */ c = HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */ b = HH (b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */ a = HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */ d = HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */ c = HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */ b = HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */ /* Round 4 */ a = II (a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */ d = II (d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */ c = II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */ b = II (b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */ a = II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */ d = II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */ c = II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */ b = II (b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */ a = II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */ d = II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */ c = II (c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */ b = II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */ a = II (a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */ d = II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */ c = II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */ b = II (b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */ FContext.state[0]+=a; FContext.state[1]+=b; FContext.state[2]+=c; FContext.state[3]+=d; } void XMD5::Encode(XByte *lpOutput,XDWord *lpInput,XDWord dwLength) { XDWord j, tmp; for(j=0;j<dwLength;j+=4) { tmp=*lpInput++; *lpOutput++=(XByte)(tmp&0xff); tmp=tmp>>8; *lpOutput++=(XByte)(tmp&0xff); tmp=tmp>>8; *lpOutput++=(XByte)(tmp&0xff); tmp=tmp>>8; *lpOutput++=(XByte)(tmp&0xff); } } void XMD5::Decode(XDWord *lpOutput,XByte *lpInput,XDWord dwLength) { XDWord j; for(j=0; j<dwLength; j+=4) { *lpOutput=(XDWord)(*lpInput++); *lpOutput|=(((XDWord)(*lpInput++))<<8); *lpOutput|=(((XDWord)(*lpInput++))<<16); *lpOutput|=(((XDWord)(*lpInput++))<<24); lpOutput++; } } void XMD5::MD5Final() { XByte PADDING[64] = { 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; XByte bits[8]; XDWord index,padLen; Encode(bits,FContext.count,8); index=(FContext.count[0]>>3)&0x3f; padLen = (index < 56) ? (56 - index) : (120 - index); MD5Update(PADDING,padLen); MD5Update(bits,8); } /* Name: XMD5::GetMD5Str Description: 取得某一个串的MD5编码 Version 1.0 Date 2003-11-18 Author: zdhosft Param: <in> lpInput<char *>输入的串 [串的内容不会被改变] <in> iInputLen<int> 输入的串的长度。 <out> lpOutput<char *>生成编码存放的地方,因为编码要有32个字符, 再加上一个串结束符,所以需要至少33个字符。 Return <char *>返回lpOutput的地址。 */ char * XMD5::GetMD5OfStr(char * lpInput,int iInputLen,char * lpOutput) { XByte bits[16]; XByte btTmp; MD5Init(); MD5Update((XByte *)lpInput,(XDWord)iInputLen); MD5Final(); Encode(bits,FContext.state,16); char *p=lpOutput; for(int i=0;i<16;i++) { btTmp=bits[i]; *p++=GetChar((XByte)((btTmp>>4)&0xf)); *p++=GetChar((XByte)(btTmp&0xf)); } *p=0; return lpOutput; } char XMD5::GetChar(XByte btValue) { if(btValue<10) return (char)('0'+btValue); else return (char)('A'+btValue-10); } }