Crypto.h以及Crypto.cpp
Crypto.h
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#pragma once
#ifndef __CCRYPTO__H__INCLUDED__ #define __CCRYPTO__H__INCLUDED__ #include <string> using namespace std; #define CONST const #define CLASS class #define AS_PUBLIC #define NEW new #define NULLPTR NULL // BASE64 // 十六进制数到ASCII表示 #define HEX_DIGIT_TO_ASCII(x) ((((x) >= 0) && ( (x) <= 9))? (x)+'0': (x)-10+'A') // Encoding and decoding Base64 code AS_PUBLIC CLASS CryptoBase64 { public: // 63rd char used for Base64 code static CONST wchar_t CHAR_63 = '*'; // 64th char used for Base64 code static CONST wchar_t CHAR_64 = '-'; // Char used for padding static CONST wchar_t CHAR_PAD = '['; public: // Encodes binary data to Base64 code // Returns size of encoded data. static int Encode(const unsigned char* inData, int dataLength, wstring& outCode); // Decodes Base64 code to binary data // Returns size of decoded data. static int Decode(const wstring& inCode, int codeLength, unsigned char* outData); // Returns maximum size of decoded data based on size of Base64 code. static int GetDataLength(int codeLength); // Returns maximum length of Base64 code based on size of uncoded data. static int GetCodeLength(int dataLength); }; /////////////////////////////////////TEA加密////////////////////////////////////////////////// #define ENCODE_SINGATURE (DWORD)0x4B434E45 AS_PUBLIC CLASS CryptoTEA { public: /// <summary> /// 使用TEA算法加密64bit数据，即8个字节。 /// </summary> /// <param name="lpData"> /// 64bit(8个字节)的需要加密数据首地址。 /// </param> /// <param name="lpKey"> /// 128bit(即16个字节)的密钥首地址。 /// </param> static void EncipherQword( void *lpData, const void *lpKey ); /// <summary> /// 使用TEA算法解密bit数据，即个字节。 /// </summary> /// <param name="lpData"> /// 64bit(8个字节)的需要解密数据首地址。 /// </param> /// <param name="lpKey"> /// 128bit(即个字节)的密钥首地址。 /// </param> static void DecipherQword( void *lpData, const void *lpKey ); /// <summary> /// 加密内存区域。 /// </summary> /// <param name="lpData"> /// [IN/OUT]加密数据缓冲区首地址。 /// </param> /// <param name="nBufLen"> /// 加密数据缓冲区长度，必须圆整为的倍数。 /// </param> /// <param name="lpKey"> /// 128位密钥长度，必须由调用方保证至少字节长。 /// </param> /// <returns> /// 加密数据的实际长度，<0 则表示失败。 /// </returns> static int EncipherMemory(void* lpData, int nBufLen, const void *lpKey ); /// <summary> /// 解密内存区。 /// </summary> /// <param name="lpData"> /// [IN/OUT]解密数据缓冲区首地址。 /// </param> /// <param name="nBufLen"> /// 解密数据缓冲区长度，必须是8的倍数。 /// </param> /// <param name="lpKey"> /// 128bit密钥。 /// </param> /// <returns> /// 解密后数据的长度，<0 则表示失败。 /// </returns> static int DecipherMemory(void* lpData, int nBufLen, const void *lpKey); /// <summary> /// 加密字符串。 /// </summary> /// <param name="Source"> /// 源字符串。 /// </param> /// <param name="Result"> /// 结果字符串。 /// </param> /// <param name="Key"> /// 128位密钥。 /// </param> /// <returns> /// >=0 表示成功，<0表示失败。 /// </returns> static int EncipherString( const std::wstring& Source, std::wstring& Result, const void* Key ); /// <summary> /// ASCII字符转换为进制数。 /// </summary> /// <param name="chr"> /// 16进制字符ASCII表示。 /// </param> /// <returns> /// 16进制数值。 /// </returns> static unsigned char Asc2Hex( wchar_t chr ); /// <summary> /// 解密字符串。 /// </summary> /// <param name="Source"> /// 源字符串。 /// </param> /// <param name="Result"> /// 结果字符串。 /// </param> /// <param name="Key"> /// 128位密钥。 /// </param> /// <returns> /// >=0 表示成功，<0表示失败。 /// </returns> static int DecipherString( const std::wstring& Source, std::wstring& Result, const void* Key ); /// <summary> /// 随机产生加密的密钥。 /// </summary> /// <param name="EncKey"> /// 用于保存加密密钥。 /// </param> static void GenerateEncKey( DWORD* EncKey ); }; //////////////////////////////////////// MD5/////////////////////////////////////////// /* MD5 context. */ typedef struct { unsigned long state[4]; /* state (ABCD) */ unsigned long count[2]; /* number of bits, modulo 2^64 (lsb first) */ unsigned char buffer[64]; /* input buffer */ } MD5_CONTEXT; #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 /* F, G, H and I are basic MD5 functions. */ #define F(x, y, z) (((x) & (y)) | ((~x) & (z))) #define G(x, y, z) (((x) & (z)) | ((y) & (~z))) #define H(x, y, z) ((x) ^ (y) ^ (z)) #define I(x, y, z) ((y) ^ ((x) | (~z))) /* ROTATE_LEFT rotates x left n bits. */ #define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n)))) /* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4. Rotation is separate from addition to prevent recomputation. */ #define FF(a, b, c, d, x, s, ac) { (a) += F ((b), (c), (d)) + (x) + (unsigned long)(ac); (a) = ROTATE_LEFT ((a), (s)); (a) += (b); } #define GG(a, b, c, d, x, s, ac) { (a) += G ((b), (c), (d)) + (x) + (unsigned long)(ac); (a) = ROTATE_LEFT ((a), (s)); (a) += (b); } #define HH(a, b, c, d, x, s, ac) { (a) += H ((b), (c), (d)) + (x) + (unsigned long)(ac); (a) = ROTATE_LEFT ((a), (s)); (a) += (b); } #define II(a, b, c, d, x, s, ac) { (a) += I ((b), (c), (d)) + (x) + (unsigned long)(ac); (a) = ROTATE_LEFT ((a), (s)); (a) += (b); } class CryptoMD5 { public: /* Note: Replace "for loop" with standard memset if possible. */ static void MD5Memset(unsigned char* output, int value, unsigned int len); /* Note: Replace "for loop" with standard memcpy if possible. */ static void MD5Memcpy(unsigned char* output, unsigned char* input, unsigned int len); /* Encodes input (unsigned long) into output (unsigned char). Assumes len is a multiple of 4. */ static void Encode(unsigned char *output, unsigned long *input, unsigned int len); /* Decodes input (unsigned char) into output (unsigned long). Assumes len is a multiple of 4. */ static void Decode(unsigned long *output, unsigned char *input, unsigned int len); /* MD5 basic transformation. Transforms state based on block. */ static void MD5Transform(unsigned long state[4], unsigned char block[64]); /* MD5 initialization. Begins an MD5 operation, writing a new context. */ static void MD5Init(MD5_CONTEXT *context); /* MD5 block update operation. Continues an MD5 message-digest operation, processing another message block, and updating the context. */ static void MD5Update(MD5_CONTEXT *context, unsigned char *input, unsigned int inputLen); /* MD5 finalization. Ends an MD5 message-digest operation, writing the the message digest and zeroizing the context. */ static void MD5Final(unsigned char digest[16], MD5_CONTEXT *context); static CString MD5String (std::wstring Source); }; #endif |
Crypto.cpp
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#include "stdafx.h"
#include "Crypto.h" unsigned char 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 }; // Encodes binary data to Base64 code // Returns size of encoded data. int CryptoBase64::Encode(const unsigned char* inData, int dataLength, wstring& outCode) { wstring result; // output buffer which holds code during conversation int len = GetCodeLength( dataLength ); wchar_t* out = new wchar_t[ len ]; // charachers used by Base64 static const wchar_t alph[] = { 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z', 'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z', '0','1','2','3','4','5','6','7','8','9',CHAR_63,CHAR_64 }; // mask - first six bits const int mask = 0x3F; // used as temp 24-bits buffer union { unsigned char bytes[ 4 ]; unsigned int block; } buffer; // coversation is done by taking three bytes at time of input data int temp // then four six-bits values are extracted, converted to base64 characters // and at the end they are written to output buffer for( int i = 0, j = 0, left = dataLength; i < dataLength; i += 3, j += 4, left -= 3 ) { //------------------------ // filling temp buffer // get first byte and puts it at MSB position in temp buffer buffer.bytes[ 2 ] = inData[ i ]; // more data left? if( left > 1 ) { // get second byte and puts it at middle position in temp buffer buffer.bytes[ 1 ] = inData[ i + 1 ]; // more data left? if( left > 2 ) // get third byte and puts it at LSB position in temp buffer buffer.bytes[ 0 ] = inData[ i + 2 ]; else // zero-padding of input data (last bytes) buffer.bytes[ 0 ] = 0; } else { // zero-padding of input data (last two bytes) buffer.bytes[ 1 ] = 0; buffer.bytes[ 0 ] = 0; } //------------------------ // constructing code from temp buffer // and putting it in output buffer // extract first and second six-bit value from temp buffer // and convert is to base64 character out[ j ] = alph[ ( buffer.block >> 18 ) & mask ]; out[ j + 1 ] = alph[ ( buffer.block >> 12 ) & mask ]; // more data left? if( left > 1 ) { // extract third six-bit value from temp buffer // and convert it to base64 character out[ j + 2 ] = alph[ ( buffer.block >> 6 ) & mask ]; // more data left? if( left > 2 ) // extract forth six-bit value from temp buffer // and convert it to base64 character out[ j + 3 ] = alph[ buffer.block & mask ]; else // pad output code out[ j + 3 ] = CHAR_PAD; } else { // pad output code out[ j + 2 ] = CHAR_PAD; out[ j + 3 ] = CHAR_PAD; } } outCode.clear(); outCode.append( out, len ); delete[] out; return len; } // Decodes Base64 code to binary data // Returns size of decoded data. int CryptoBase64::Decode(const wstring& inCode, int codeLength, unsigned char* outData) { // used as temp 24-bits buffer union { unsigned char bytes[ 4 ]; unsigned int block; } buffer; buffer.block = 0; // number of decoded bytes int j = 0; for( int i = 0; i < codeLength; i++ ) { // position in temp buffer int m = i % 4; wchar_t x = inCode[ i ]; int val = 0; // converts base64 character to six-bit value if( x >= 'A' && x <= 'Z' ) val = x - 'A'; else if( x >= 'a' && x <= 'z' ) val = x - 'a' + 'Z' - 'A' + 1; else if( x >= '0' && x <= '9' ) val = x - '0' + ( 'Z' - 'A' + 1 ) * 2; else if( x == CHAR_63 ) val = 62; else if( x == CHAR_64 ) val = 63; // padding chars are not decoded and written to output buffer if( x != CHAR_PAD ) buffer.block |= val << ( 3 - m ) * 6; else m--; // temp buffer is full or end of code is reached // flushing temp buffer if( m == 3 || x == CHAR_PAD ) { // writes byte from temp buffer (combined from two six-bit values) to output buffer outData[ j++ ] = buffer.bytes[ 2 ]; // more data left? if( x != CHAR_PAD || m > 1 ) { // writes byte from temp buffer (combined from two six-bit values) to output buffer outData[ j++ ] = buffer.bytes[ 1 ]; // more data left? if( x != CHAR_PAD || m > 2 ) // writes byte from temp buffer (combined from two six-bit values) to output buffer outData[ j++ ] = buffer.bytes[ 0 ]; } // restarts temp buffer buffer.block = 0; } // when padding char is reached it is the end of code if( x == CHAR_PAD ) break; } return j; } // Returns maximum size of decoded data based on size of Base64 code. int CryptoBase64::GetDataLength(int codeLength) { return codeLength - codeLength / 4; } // Returns maximum length of Base64 code based on size of uncoded data. int CryptoBase64::GetCodeLength(int dataLength) { int len = dataLength + dataLength / 3 + (int)( dataLength % 3 != 0 ); // output code size must be multiple of 4 bytes if( len % 4 ) len += 4 - len % 4; return len; } /// <summary> /// 使用TEA算法加密bit数据，即个字节。 /// </summary> /// <param name="lpData"> /// 64bit(8个字节)的需要加密数据首地址。 /// </param> /// <param name="lpKey"> /// 128bit(即16个字节)的密钥首地址。 /// </param> void CryptoTEA::EncipherQword( void *lpData, const void *lpKey ) { const unsigned long cnDelta = 0x9E3779B9; register unsigned long y = ( ( unsigned long * )lpData )[0], z = ( ( unsigned long * )lpData )[1]; register unsigned long sum = 0; unsigned long a = ( ( unsigned long * )lpKey )[0], b = ( ( unsigned long * )lpKey )[1]; unsigned long c = ( ( unsigned long * )lpKey )[2], d = ( ( unsigned long * )lpKey )[3]; int n = 32; while ( n-- > 0 ) { sum += cnDelta; y += ( z << 4 ) + a ^ z + sum ^ ( z >> 5 ) + b; z += ( y << 4 ) + c ^ y + sum ^ ( y >> 5 ) + d; } ( ( unsigned long * )lpData )[0] = y; ( ( unsigned long * )lpData )[1] = z; } /// <summary> /// 使用TEA算法解密bit数据，即个字节。 /// </summary> /// <param name="lpData"> /// 64bit(8个字节)的需要解密数据首地址。 /// </param> /// <param name="lpKey"> /// 128bit(即个字节)的密钥首地址。 /// </param> void CryptoTEA::DecipherQword( void *lpData, const void *lpKey ) { const unsigned long cnDelta = 0x9E3779B9; register unsigned long y = ( ( unsigned long * )lpData )[0], z = ( ( unsigned long * )lpData )[1]; register unsigned long sum = 0xC6EF3720; unsigned long a = ( ( unsigned long * )lpKey )[0], b = ( ( unsigned long * )lpKey )[1]; unsigned long c = ( ( unsigned long * )lpKey )[2], d = ( ( unsigned long * )lpKey )[3]; int n = 32; // sum = delta << 5, in general sum = delta * n while ( n-- > 0 ) { z -= ( y << 4 ) + c ^ y + sum ^ ( y >> 5 ) + d; y -= ( z << 4 ) + a ^ z + sum ^ ( z >> 5 ) + b; sum -= cnDelta; } ( ( unsigned long * )lpData )[0] = y; ( ( unsigned long * )lpData )[1] = z; } /// <summary> /// 加密内存区域。 /// </summary> /// <param name="lpData"> /// [IN/OUT]加密数据缓冲区首地址。 /// </param> /// <param name="nBufLen"> /// 加密数据缓冲区长度，必须圆整为的倍数。 /// </param> /// <param name="lpKey"> /// 128位密钥长度，必须由调用方保证至少字节长。 /// </param> /// <returns> /// 加密数据的实际长度，<0 则表示失败。 /// </returns> int CryptoTEA::EncipherMemory(void* lpData, int nBufLen, const void *lpKey ) { if( nBufLen <= 0 ) return 0; if( lpData == NULL || lpKey == NULL || ( nBufLen %8 != 0 ) ) return (-9); // 无效参数 /// 加密数据 unsigned char* pDest = (unsigned char*)lpData; int n = nBufLen >> 3; while ( n-- ) { EncipherQword( pDest, lpKey ); pDest += 8; } return nBufLen; } /// <summary> /// 解密内存区。 /// </summary> /// <param name="lpData"> /// [IN/OUT]解密数据缓冲区首地址。 /// </param> /// <param name="nBufLen"> /// 解密数据缓冲区长度，必须是的倍数。 /// </param> /// <param name="lpKey"> /// 128bit密钥。 /// </param> /// <returns> /// 解密后数据的长度，<0 则表示失败。 /// </returns> int CryptoTEA::DecipherMemory(void* lpData, int nBufLen, const void *lpKey) { if( nBufLen <= 0 ) return 0; if( lpData == NULL || lpKey == NULL || ( nBufLen %8 != 0 ) ) return (-9); // 无效参数 /// 解密 unsigned char* pDest = (unsigned char*)lpData; int n = nBufLen >> 3; while ( n-- ) { DecipherQword( pDest, lpKey ); pDest += 8; } return nBufLen; } /// <summary> /// 加密字符串。 /// </summary> /// <param name="Source"> /// 源字符串。 /// </param> /// <param name="Result"> /// 结果字符串。 /// </param> /// <param name="Key"> /// 128位密钥。 /// </param> /// <returns> /// >=0 表示成功，<0表示失败。 /// </returns> int CryptoTEA::EncipherString( const std::wstring& Source, std::wstring& Result, const void* Key ) { Result.clear(); if( Key == NULL ) return (-9); // 无效参数 if( Source.empty() ) return 0; // 确定缓冲区长度 DWORD SourceLength = (DWORD)Source.length(); DWORD EncodeNumber = ENCODE_SINGATURE; int BufferLen = (int)SourceLength*sizeof(wchar_t); BufferLen = ((BufferLen + 7) >> 3) << 3; // 圆整为的倍数 BufferLen += 8; unsigned char* Buffer = new unsigned char[ BufferLen]; if( Buffer == NULL ) return (-3); // out of memory memset( Buffer, 0, BufferLen ); memcpy( Buffer+0, &EncodeNumber, sizeof(DWORD) ); memcpy( Buffer+4, &SourceLength, sizeof(DWORD) ); memcpy( Buffer+8, Source.c_str(),SourceLength*sizeof(wchar_t) ); // 进行加密 int rc = EncipherMemory( Buffer, BufferLen, Key ); if( rc < 0 ) { delete[] Buffer; return rc; } // 构造结果 Result.resize( BufferLen*2 ); for( int Index = 0; Index < BufferLen; Index++ ) { Result[2*Index+0] = HEX_DIGIT_TO_ASCII( (Buffer[Index] >> 4 ) & 0x0F); Result[2*Index+1] = HEX_DIGIT_TO_ASCII( Buffer[Index] & 0x0F ); } // 释放内存并返回 delete[] Buffer; return (int)Result.length(); } /// <summary> /// ASCII字符转换为进制数。 /// </summary> /// <param name="chr"> /// 16进制字符ASCII表示。 /// </param> /// <returns> /// 16进制数值。 /// </returns> unsigned char CryptoTEA::Asc2Hex( wchar_t chr ) { if( chr >= '0' && chr <= '9' ) return (chr - '0'); if( chr >= 'a' && chr <= 'f' ) return ( chr - 'a' + 10 ); if( chr >= 'A' && chr <= 'F' ) return ( chr - 'A' + 10 ); // 无效字符 return (-1); } /// <summary> /// 解密字符串。 /// </summary> /// <param name="Source"> /// 源字符串。 /// </param> /// <param name="Result"> /// 结果字符串。 /// </param> /// <param name="Key"> /// 128位密钥。 /// </param> /// <returns> /// >=0 表示成功，<0表示失败。 /// </returns> int CryptoTEA::DecipherString( const std::wstring& Source, std::wstring& Result, const void* Key ) { Result.clear(); //============================================================================== // 检查输入 //============================================================================== if( Key == NULL ) return (-9); // 无效参数 if( Source.empty() ) return 0; // 检查输入是否有效 if( Source.length() % 16 != 0 ) return (-9); // 输入必须是的倍数 // 输入必须是进制数0-9 A-F int Index = 0; for( Index = 0; Index < (int)Source.length(); Index++ ) { // 检查是否为数字 if( Source[Index] >= '0' && Source[Index] <= '9' ) continue; // 检查是否为A-F if( Source[Index] >= 'a' && Source[Index] <= 'f' ) continue; // 检查是否为A-F if( Source[Index] >= 'A' && Source[Index] <= 'F' ) continue; // 无效输入 return (-9); } //============================================================================== // 准备缓冲区 //============================================================================== unsigned char Chr = 0; int BufferLen = (int)Source.length()/2; unsigned char* Buffer = new unsigned char[BufferLen]; if( Buffer == NULL ) return (-3); // Out of memory for( Index = 0;Index < BufferLen; Index++ ) { Chr = Asc2Hex( Source[2*Index+0] ); Chr <<= 4; Chr |= Asc2Hex( Source[2*Index+1] ); Buffer[Index] = Chr; } //============================================================================== // 进行解密 //============================================================================== int rc = DecipherMemory( Buffer,BufferLen,Key ); if( rc < 0 ) { delete[] Buffer; return rc; } // 前面字节为长度信息 DWORD SourceLength = 0; DWORD EncodeNumber = 0; memcpy( &EncodeNumber,Buffer+0, sizeof(DWORD) ); memcpy( &SourceLength,Buffer+4, sizeof(DWORD) ); if( ( EncodeNumber != ENCODE_SINGATURE ) || (SourceLength > ( BufferLen- 8)/sizeof(wchar_t)) ) { delete[] Buffer; return (-15); // 无效数据 } // 准备结果 Result.assign( (const wchar_t*)(Buffer +8) , (size_t)SourceLength ); // 返回 delete[] Buffer; return (int)Result.length(); } /// <summary> /// 随机产生加密的密钥。 /// </summary> /// <param name="EncKey"> /// 用于保存加密密钥。 /// </param> void CryptoTEA::GenerateEncKey( DWORD* EncKey ) { DWORD RandNum = 0; srand( (unsigned int)GetTickCount() ); for( int index = 0; index < 4; index++ ) { RandNum = (DWORD)rand(); RandNum <<= 16; RandNum |= (DWORD)rand(); EncKey[index] = RandNum; } } /* Note: Replace "for loop" with standard memset if possible. */ void CryptoMD5::MD5Memset(unsigned char* output, int value, unsigned int len) { unsigned int i; for (i = 0; i < len; i++) ((char *)output)[i] = (char)value; } /* Note: Replace "for loop" with standard memcpy if possible. */ void CryptoMD5::MD5Memcpy(unsigned char* output, unsigned char* input, unsigned int len) { unsigned int i; for (i = 0; i < len; i++) output[i] = input[i]; } /* Encodes input (unsigned long) into output (unsigned char). Assumes len is a multiple of 4. */ void CryptoMD5::Encode(unsigned char *output, unsigned long *input, unsigned int len) { unsigned int i, j; for (i = 0, j = 0; j < len; i++, j += 4) { output[j] = (unsigned char)(input[i] & 0xff); output[j+1] = (unsigned char)((input[i] >> 8) & 0xff); output[j+2] = (unsigned char)((input[i] >> 16) & 0xff); output[j+3] = (unsigned char)((input[i] >> 24) & 0xff); } } /* Decodes input (unsigned char) into output (unsigned long). Assumes len is a multiple of 4. */ void CryptoMD5::Decode(unsigned long *output, unsigned char *input, unsigned int len) { unsigned int i, j; for (i = 0, j = 0; j < len; i++, j += 4) output[i] = ((unsigned long)input[j]) | (((unsigned long)input[j+1]) << 8) | (((unsigned long)input[j+2]) << 16) | (((unsigned long)input[j+3]) << 24); } /* MD5 basic transformation. Transforms state based on block. */ void CryptoMD5::MD5Transform(unsigned long state[4], unsigned char block[64]) { unsigned long a = state[0], b = state[1], c = state[2], d = state[3], x[16]; Decode(x, block, 64); /* Round 1 */ FF (a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */ FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */ FF (c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */ FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */ FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */ FF (d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */ FF (c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */ FF (b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */ FF (a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */ FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */ FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */ FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */ FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */ FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */ FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */ FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */ /* Round 2 */ GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */ GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */ GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */ GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */ GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */ GG (d, a, b, c, x[10], S22, 0x2441453); /* 22 */ GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */ GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */ GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */ GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */ GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */ GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */ GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */ GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */ GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */ GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */ /* Round 3 */ HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */ HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */ HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */ HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */ HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */ HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */ HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */ HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */ HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */ HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */ HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */ HH (b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */ HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */ HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */ HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */ HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */ /* Round 4 */ II (a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */ II (d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */ II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */ II (b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */ II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */ II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */ II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */ II (b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */ II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */ II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */ II (c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */ II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */ II (a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */ II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */ II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */ II (b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */ state[0] += a; state[1] += b; state[2] += c; state[3] += d; /* Zeroize sensitive information. */ MD5Memset((unsigned char*)x, 0, sizeof(x)); } /* MD5 initialization. Begins an MD5 operation, writing a new context. */ void CryptoMD5::MD5Init(MD5_CONTEXT *context) { context->count[0] = context->count[1] = 0; /* Load magic initialization constants. */ context->state[0] = 0x67452301; context->state[1] = 0xefcdab89; context->state[2] = 0x98badcfe; context->state[3] = 0x10325476; } /* MD5 block update operation. Continues an MD5 message-digest operation, processing another message block, and updating the context. */ void CryptoMD5::MD5Update(MD5_CONTEXT *context, unsigned char *input, unsigned int inputLen) { unsigned int i, index, partLen; /* Compute number of bytes mod 64 */ index = (unsigned int)((context->count[0] >> 3) & 0x3F); /* Update number of bits */ if ((context->count[0] += ((unsigned long)inputLen << 3)) < ((unsigned long)inputLen << 3)) context->count[1]++; context->count[1] += ((unsigned long)inputLen >> 29); partLen = 64 - index; /* Transform as many times as possible. */ if (inputLen >= partLen) { MD5Memcpy((unsigned char*)&context->buffer[index], (unsigned char*)input, partLen); MD5Transform(context->state, context->buffer); for (i = partLen; i + 63 < inputLen; i += 64) MD5Transform(context->state, &input[i]); index = 0; } else i = 0; /* Buffer remaining input */ MD5Memcpy((unsigned char*)&context->buffer[index], (unsigned char*)&input[i], inputLen-i); } /* MD5 finalization. Ends an MD5 message-digest operation, writing the the message digest and zeroizing the context. */ void CryptoMD5::MD5Final(unsigned char digest[16], MD5_CONTEXT *context) { unsigned char bits[8]; unsigned int index, padLen; /* Save number of bits */ Encode(bits, context->count, 8); /* Pad out to 56 mod 64. */ index = (unsigned int)((context->count[0] >> 3) & 0x3f); padLen = (index < 56) ? (56 - index) : (120 - index); MD5Update(context, PADDING, padLen); /* Append length (before padding) */ MD5Update(context, bits, 8); /* Store state in digest */ Encode(digest, context->state, 16); /* Zeroize sensitive information. */ MD5Memset((unsigned char*)context, 0, sizeof (*context)); } CString CryptoMD5::MD5String (std::wstring Source) { int size= Source.size(); BYTE* pSource = new BYTE[size*2]; ZeroMemory(pSource,size*2); WideCharToMultiByte(CP_ACP, 0, Source.c_str(), size, (LPSTR)pSource , size*2, NULL, NULL); MD5_CONTEXT context; BYTE digest[16]={0}; MD5Init(&context); MD5Update(&context, pSource,Source.size()*2); MD5Final(digest,&context); delete []pSource; wchar_t CheckCode[33] = { 0 }; // 保存校验码，个数+null-terminal for (int Index = 0; Index < 16; ++Index) { CheckCode[2*Index ] = HEX_DIGIT_TO_ASCII( (digest[Index] >> 4 ) & 0x0F); CheckCode[2*Index+1] = HEX_DIGIT_TO_ASCII( digest[Index] & 0x0F ); } CString str(CheckCode); return str; } |