Rijndaels的使用
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高级加密标准（Advanced Encryption Standard，AES），在密码学中又称Rijndael加密法，是美国联邦政府采用的一种区块加密标准。这个标准用来替代原先的DES，已经被多方分析且广为全世界所使用。
1.加密的调用方法
bool CGlobalFun::Encryption(const CString &strFilePath) {if (!PathFileExists(strFilePath)){return false;}fstream iniFile;iniFile.open(strFilePath,ios::binary|ios::in);iniFile.seekg(0,ios::end);int length = iniFile.tellg();iniFile.seekg(0,ios::beg);unsigned char *buf=new unsigned char [length];iniFile.read((char*)buf,length);if (iniFile){unsigned char* sKeyAes=new unsigned char [length+16];memset(sKeyAes,0,sizeof(sKeyAes));long nRet = AESEncode((unsigned char*)AES_KEY, buf, length, sKeyAes,length + 16);if (nRet != -99){CString strFileEncPath;strFileEncPath = strFilePath + ".enc";fstream iniEncFile;iniEncFile.open(strFileEncPath,ios::binary|ios::out);iniEncFile.write((const char *)sKeyAes,nRet);iniEncFile.close();delete sKeyAes;}}iniFile.close();delete buf;return true;}2.解密的调用方法
bool CGlobalFun::Decryption(const CString &strFilePath) {CString strFileEncPath;strFileEncPath = strFilePath + ".enc";if (!PathFileExists(strFileEncPath)){return false;}fstream iniEncFile;iniEncFile.open(strFileEncPath,ios::binary|ios::in);iniEncFile.seekg(0,ios::end);int length = iniEncFile.tellg();unsigned char *buf=new unsigned char [length];iniEncFile.seekg(0,ios::beg);iniEncFile.read((char*)buf,length);if (iniEncFile){unsigned char* sKeyAes=new unsigned char [length+16];memset(sKeyAes,0,sizeof(sKeyAes));long oLen = AESDecode((unsigned char*)AES_KEY, buf, length, sKeyAes,length);if (oLen != -99){fstream iniFile;iniFile.open(strFilePath,ios::binary|ios::out);iniFile.write((const char *)sKeyAes,oLen);iniFile.close();delete sKeyAes;}}delete buf;iniEncFile.close();return true;}Rijndaels.h
/** * Rijndael --pronounced Reindaal-- is a symmetric cipher with a 128-bit * block size and 256-bit key-size. */#ifndef _RIJNDAEL_H_#define _RIJNDAEL_H_#define KEY_LEN_BYTES32// 密钥256位#define ROUNDS14#define ROUND_KEY_COUNT ((ROUNDS + 1) * 4)typedef unsigned char BYTE;typedef BYTE * PBYTE;long AESEncode(unsigned char * pKey, unsigned char * pIn, long nInLen, unsigned char * pOut,long nOutLen);long AESDecode(unsigned char * pKey, unsigned char * pIn, long nInLen, unsigned char * pOut,long nOutLen);int DecodeBase64(unsigned char * btSrc, int iSrcLen, unsigned char * btRet, int * piRetLen);int EncodeBase64(unsigned char * btSrc, int iSrcLen, unsigned char * btRet, int * piRetLen);class CRijndael{public:CRijndael();~CRijndael();public:static int BLOCK_SIZE;void Init(); /** * Set IV in CBC mode. * * @param pIV point the 16 bytes IV data. */void setIV(PBYTE pIV);/** * Expand a user-supplied key material into a session encryption key. * * @param key The 256-bit user-key to use. */void makeKey(PBYTE pKey); /** * Encrypt an arbitrary length array. * @return number of bytes written. */ int encrypt(BYTE* in, int inOffset, int inLen, BYTE* out, int outOffset); /** * Decrypt an arbitrary length array. */ int decrypt(BYTE* in, int inOffset, int inLen, BYTE* out, int outOffset);protected: /** * Invert a session encryption key into a session decryption key. */void invertKey(int* K); /** * Encrypt exactly one block of plaintext. */ void blockEncrypt(BYTE* in, BYTE* out); void blockEncrypt(BYTE* in, int inOffset, BYTE* out, int outOffset); /** * Decrypt exactly one block of plaintext. */ void blockDecrypt(BYTE* in, BYTE* out); void blockDecrypt(BYTE* in, int inOffset, BYTE* out, int outOffset);private:static bool ROUNDS_12, ROUNDS_14;static int limit;BYTE S[256], Si[256];int T1[256],T2[256],T3[256],T4[256],T5[256],T6[256],T7[256],T8[256];int U1[256],U2[256],U3[256],U4[256];BYTE rcon[30];int m_encKey[ROUND_KEY_COUNT];int m_decKey[ROUND_KEY_COUNT];BYTE m_iv[16];};#endif //_RIJNDAEL_H_Rijndaels.cpp
/*** Rijndael --pronounced Reindaal-- is a symmetric cipher with a 128-bit* block size and 256-bit key-size.*/#include "stdafx.h"#include "Rijndaels.h"#include <string.h>int CRijndael::BLOCK_SIZE = 0x10;// block size in bytesint CRijndael::limit = 14 * 4; // (ROUNDS-1) * 4 bool CRijndael::ROUNDS_14 = 1;bool CRijndael::ROUNDS_12 = 1;CRijndael::CRijndael(){Init();}CRijndael::~CRijndael(){}void CRijndael::Init(){//S-BOXunsigned char sinput[256]={0x63,0x7c,0x77,0x7b,0xf2,0x6b,0x6f,0xc5,0x30,0x01,0x67,0x2b,0xfe,0xd7,0xab,0x76,0xca,0x82,0xc9,0x7d,0xfa,0x59,0x47,0xf0,0xad,0xd4,0xa2,0xaf,0x9c,0xa4,0x72,0xc0,0xb7,0xfd,0x93,0x26,0x36,0x3f,0xf7,0xcc,0x34,0xa5,0xe5,0xf1,0x71,0xd8,0x31,0x15,0x04,0xc7,0x23,0xc3,0x18,0x96,0x05,0x9a,0x07,0x12,0x80,0xe2,0xeb,0x27,0xb2,0x75,0x09,0x83,0x2c,0x1a,0x1b,0x6e,0x5a,0xa0,0x52,0x3b,0xd6,0xb3,0x29,0xe3,0x2f,0x84,0x53,0xd1,0x00,0xed,0x20,0xfc,0xb1,0x5b,0x6a,0xcb,0xbe,0x39,0x4a,0x4c,0x58,0xcf,0xd0,0xef,0xaa,0xfb,0x43,0x4d,0x33,0x85,0x45,0xf9,0x02,0x7f,0x50,0x3c,0x9f,0xa8,0x51,0xa3,0x40,0x8f,0x92,0x9d,0x38,0xf5,0xbc,0xb6,0xda,0x21,0x10,0xff,0xf3,0xd2,0xcd,0x0c,0x13,0xec,0x5f,0x97,0x44,0x17,0xc4,0xa7,0x7e,0x3d,0x64,0x5d,0x19,0x73,0x60,0x81,0x4f,0xdc,0x22,0x2a,0x90,0x88,0x46,0xee,0xb8,0x14,0xde,0x5e,0x0b,0xdb,0xe0,0x32,0x3a,0x0a,0x49,0x06,0x24,0x5c,0xc2,0xd3,0xac,0x62,0x91,0x95,0xe4,0x79,0xe7,0xc8,0x37,0x6d,0x8d,0xd5,0x4e,0xa9,0x6c,0x56,0xf4,0xea,0x65,0x7a,0xae,0x08,0xba,0x78,0x25,0x2e,0x1c,0xa6,0xb4,0xc6,0xe8,0xdd,0x74,0x1f,0x4b,0xbd,0x8b,0x8a,0x70,0x3e,0xb5,0x66,0x48,0x03,0xf6,0x0e,0x61,0x35,0x57,0xb9,0x86,0xc1,0x1d,0x9e,0xe1,0xf8,0x98,0x11,0x69,0xd9,0x8e,0x94,0x9b,0x1e,0x87,0xe9,0xce,0x55,0x28,0xdf,0x8c,0xa1,0x89,0x0d,0xbf,0xe6,0x42,0x68,0x41,0x99,0x2d,0x0f,0xb0,0x54,0xbb,0x16};// intialise S-boxes and T-boxesmemcpy(S, sinput, sizeof(S));int ROOT = 0x11B;int i, j = 0;for (i = 0; i < 256; i++) {int s, s2, s3, i2, i4, i8, i9, ib, id, ie, t;s = S[i] & 0xFF;Si[s] = (BYTE)i;s2 = s << 1;if (s2 >= 0x100)s2 ^= ROOT;s3 = s2 ^ s;i2 = i << 1;if (i2 >= 0x100) i2 ^= ROOT;i4 = i2 << 1;if (i4 >= 0x100)i4 ^= ROOT;i8 = i4 << 1;if (i8 >= 0x100)i8 ^= ROOT;i9 = i8 ^ i;ib = i9 ^ i2;id = i9 ^ i4;ie = i8 ^ i4 ^ i2;T1[i] = t = (s2 << 0x18) | (s << 0x10) | (s << 8) | s3;T2[i] = ((t >> 8) & 0xFFFFFF) | (t << 0x18);T3[i] = ((t >> 0x10) & 0xFFFF) | (t << 0x10);T4[i] = ((t >> 0x18) & 0xFF) | (t << 8);T5[s] = U1[i] = t = (ie << 0x18) | (i9 << 0x10) | (id << 8) | ib;T6[s] = U2[i] = ((t >> 8) & 0xFFFFFF) | (t << 0x18);T7[s] = U3[i] = ((t >> 0x10) & 0xFFFF) | (t << 0x10);T8[s] = U4[i] = ((t >> 0x18) & 0xFF) | (t << 8);}//// round constants//int r = 1;rcon[0] = 1;for (i = 1; i < 30; i++) {r <<= 1;if (r >= 0x100) r ^= ROOT;rcon[i] = (BYTE)r;}// Initialise default IVmemset(m_iv, 0x00, sizeof(m_iv));}/*** Expand a user-supplied key material into a session encryption key.** @param key The 256-bit user-key to use.* @exception InvalidKeyException If the key is invalid.*/void CRijndael::makeKey(PBYTE keyBytes){if (keyBytes == NULL)return ;int KC = KEY_LEN_BYTES / 4; // keylen in 32-bit elementsint tk[KEY_LEN_BYTES/4];int K[ROUND_KEY_COUNT];int i, j;int tp1,tp2,tp3,tp4;// copy user material bytes into temporary intsfor (i = 0, j = 0; i < KC; ){tp1=(keyBytes[j++]) << 0x18;tp2=(keyBytes[j++] & 0xFF) << 0x10 ;tp3=(keyBytes[j++] & 0xFF) << 8;tp4=(keyBytes[j++] & 0xFF);tk[i++] =tp1|tp2|tp3|tp4;}// copy values into round key arraysint t = 0;for ( ; t < KC; t++)K[t] = tk[t];char ts[1000];strcpy(ts,"");int tt, rconpointer = 0;while (t < ROUND_KEY_COUNT) {// extrapolate using phi (the round key evolution function)tt = tk[KC - 1];tk[0] ^= (S[(BYTE)((tt >> 0x10) & 0xFF)] ) << 0x18 ^(S[(BYTE)((tt >> 8) & 0xFF)] & 0xFF) << 0x10 ^(S[(BYTE)((tt) & 0xFF)] & 0xFF) << 8 ^(S[(BYTE)((tt >> 0x18) & 0xFF)] & 0xFF) ^(rcon[rconpointer++] ) << 0x18; if (KC != 8){for (i = 1, j = 0; i < KC; ) tk[i++] ^= tk[j++];} else{for (i = 1, j = 0; i < KC / 2; )tk[i++] ^= tk[j++];tt = tk[KC / 2 - 1];tk[KC / 2] ^=(S[(BYTE)((tt ) & 0xFF)] & 0xFF) ^(S[(BYTE)((tt >> 8) & 0xFF)] & 0xFF) << 8 ^(S[(BYTE)((tt >> 0x10) & 0xFF)] & 0xFF) << 0x10 ^(S[(BYTE)((tt >> 0x18) & 0xFF)] ) << 0x18;for (j = KC / 2, i = j + 1; i < KC; )tk[i++] ^= tk[j++];}// copy values into round key arraysfor (j = 0; (j < KC) && (t < ROUND_KEY_COUNT); j++, t++)K[t] = tk[j];}// char ttt[10];//sprintf(ttt,"%d %d ,",j,i);// strcat(ts,ttt);// for(int dd=0;dd<60;dd++)// {//sprintf(ttt,"%d,",K[dd]);// strcat(ts,ttt);// }//MessageBox(NULL,ts,"a",MB_OK);memcpy(m_encKey, K, sizeof(K));// decryption keyinvertKey(K);memcpy(m_decKey, K, sizeof(K));}/*** Invert a session encryption key into a session decryption key.*/void CRijndael::invertKey(int* K) {int i=0;for(i=0; i<ROUND_KEY_COUNT/2-4;i+=4) {int jj0 = K[i+0];int jj1 = K[i+1];int jj2 = K[i+2];int jj3 = K[i+3];K[i+0] = K[ROUND_KEY_COUNT-i-4+0];K[i+1] = K[ROUND_KEY_COUNT-i-4+1];K[i+2] = K[ROUND_KEY_COUNT-i-4+2];K[i+3] = K[ROUND_KEY_COUNT-i-4+3];K[ROUND_KEY_COUNT-i-4+0] = jj0;K[ROUND_KEY_COUNT-i-4+1] = jj1;K[ROUND_KEY_COUNT-i-4+2] = jj2;K[ROUND_KEY_COUNT-i-4+3] = jj3;}for (int r = 4; r < ROUND_KEY_COUNT-4; r++) {int tt = K[r];K[r] = U1[(tt >> 0x18) & 0xFF] ^U2[(tt >> 0x10) & 0xFF] ^U3[(tt >> 8) & 0xFF] ^U4[ tt & 0xFF];}int j0 = K[ROUND_KEY_COUNT-4];int j1 = K[ROUND_KEY_COUNT-3];int j2 = K[ROUND_KEY_COUNT-2];int j3 = K[ROUND_KEY_COUNT-1];for(i=ROUND_KEY_COUNT-1; i>3; i-- ) K[i] = K[i-4];K[0] = j0;K[1] = j1;K[2] = j2;K[3] = j3;} // invertKey/*** Encrypt exactly one block of plaintext.*/void CRijndael::blockEncrypt(BYTE* in, BYTE* out) {blockEncrypt(in, 0, out, 0);}void CRijndael::blockEncrypt(BYTE* in, int inOffset, BYTE* out, int outOffset){int* K = &m_encKey[0];// plaintext to ints + keyint keyOffset = 0;int tp1,tp2,tp3,tp4;tp1=(in[inOffset++]) << 0x18 ;tp2=(in[inOffset++] & 0xFF) << 0x10 ;tp3=(in[inOffset++] & 0xFF) << 8 ;tp4=(in[inOffset++] & 0xFF);int t0= (tp1|tp2|tp3|tp4) ^ K[keyOffset++];tp1=(in[inOffset++]) << 0x18 ;tp2=(in[inOffset++] & 0xFF) << 0x10 ;tp3=(in[inOffset++] & 0xFF) << 8 ;tp4=(in[inOffset++] & 0xFF);int t1= (tp1|tp2|tp3|tp4) ^ K[keyOffset++];tp1=(in[inOffset++]) << 0x18 ;tp2=(in[inOffset++] & 0xFF) << 0x10 ;tp3=(in[inOffset++] & 0xFF) << 8 ;tp4=(in[inOffset++] & 0xFF);int t2= (tp1|tp2|tp3|tp4) ^ K[keyOffset++];tp1=(in[inOffset++]) << 0x18 ;tp2=(in[inOffset++] & 0xFF) << 0x10 ;tp3=(in[inOffset++] & 0xFF) << 8 ;tp4=(in[inOffset] & 0xFF);int t3= (tp1|tp2|tp3|tp4) ^ K[keyOffset++];// apply round transformswhile( keyOffset < limit ) {int a0, a1, a2;a0 = T1[(t0 >> 0x18) & 0xFF] ^T2[(t1 >> 0x10) & 0xFF] ^T3[(t2 >> 8) & 0xFF] ^T4[(t3 ) & 0xFF] ^ K[keyOffset++];a1 = T1[(t1 >> 0x18) & 0xFF] ^T2[(t2 >> 0x10) & 0xFF] ^T3[(t3 >> 8) & 0xFF] ^T4[(t0 ) & 0xFF] ^ K[keyOffset++];a2 = T1[(t2 >> 0x18) & 0xFF] ^T2[(t3 >> 0x10) & 0xFF] ^T3[(t0 >> 8) & 0xFF] ^T4[(t1 ) & 0xFF] ^ K[keyOffset++];t3 = T1[(t3 >> 0x18) & 0xFF] ^T2[(t0 >> 0x10) & 0xFF] ^T3[(t1 >> 8) & 0xFF] ^T4[(t2 ) & 0xFF] ^ K[keyOffset++];t0 = a0; t1 = a1; t2 = a2;}// last round is specialint tt = K[keyOffset++];out[outOffset++] = (BYTE)(S[(t0 >> 0x18) & 0xFF] ^ ((tt >> 0x18) & 0xFF));out[outOffset++] = (BYTE)(S[(t1 >> 0x10) & 0xFF] ^ ((tt >> 0x10) & 0xFFFF));out[outOffset++] = (BYTE)(S[(t2 >> 8) & 0xFF] ^ ((tt >> 8) & 0xFFFFFF));out[outOffset++] = (BYTE)(S[(t3 ) & 0xFF] ^ (tt ));tt = K[keyOffset++];out[outOffset++] = (BYTE)(S[(t1 >> 0x18) & 0xFF] ^ ((tt >> 0x18) & 0xFF));out[outOffset++] = (BYTE)(S[(t2 >> 0x10) & 0xFF] ^ ((tt >> 0x10) & 0xFFFF));out[outOffset++] = (BYTE)(S[(t3 >> 8) & 0xFF] ^ ((tt >> 8) & 0xFFFFFF));out[outOffset++] = (BYTE)(S[(t0 ) & 0xFF] ^ (tt ));tt = K[keyOffset++];out[outOffset++] = (BYTE)(S[(t2 >> 0x18) & 0xFF] ^ ((tt >> 0x18) & 0xFF));out[outOffset++] = (BYTE)(S[(t3 >> 0x10) & 0xFF] ^ ((tt >> 0x10) & 0xFFFF));out[outOffset++] = (BYTE)(S[(t0 >> 8) & 0xFF] ^ ((tt >> 8) & 0xFFFFFF));out[outOffset++] = (BYTE)(S[(t1 ) & 0xFF] ^ (tt ));tt = K[keyOffset++];out[outOffset++] = (BYTE)(S[(t3 >> 0x18) & 0xFF] ^ ((tt >> 0x18) & 0xFF));out[outOffset++] = (BYTE)(S[(t0 >> 0x10) & 0xFF] ^ ((tt >> 0x10) & 0xFFFF));out[outOffset++] = (BYTE)(S[(t1 >> 8) & 0xFF] ^ ((tt >> 8) & 0xFFFFFF));out[outOffset ] = (BYTE)(S[(t2 ) & 0xFF] ^ (tt ));}/*** Decrypt exactly one block of plaintext.*/void CRijndael::blockDecrypt(BYTE* in, BYTE* out) {blockDecrypt(in, 0, out, 0);}void CRijndael::blockDecrypt(BYTE* in, int inOffset, BYTE* out, int outOffset){int* K = &m_decKey[0];int keyOffset = 8;int t0, t1, t2, t3, a0, a1, a2;int tp1,tp2,tp3,tp4;tp1=(in[inOffset++] )<< 0x18 ;tp2=(in[inOffset++] & 0xFF) << 0x10;tp3=(in[inOffset++] & 0xFF) << 8 ;tp4=(in[inOffset++] & 0xFF) ;t0 = (tp1|tp2|tp3|tp4) ^ K[4];tp1=(in[inOffset++] )<< 0x18 ;tp2=(in[inOffset++] & 0xFF) << 0x10;tp3=(in[inOffset++] & 0xFF) << 8 ;tp4=(in[inOffset++] & 0xFF) ;t1 = (tp1|tp2|tp3|tp4) ^ K[5];tp1=(in[inOffset++] )<< 0x18 ;tp2=(in[inOffset++] & 0xFF) << 0x10;tp3=(in[inOffset++] & 0xFF) << 8 ;tp4=(in[inOffset++] & 0xFF) ;t2 = (tp1|tp2|tp3|tp4) ^ K[6];tp1=(in[inOffset++] )<< 0x18 ;tp2=(in[inOffset++] & 0xFF) << 0x10;tp3=(in[inOffset++] & 0xFF) << 8 ;tp4=(in[inOffset] & 0xFF) ;t3 = (tp1|tp2|tp3|tp4) ^ K[7];if(ROUNDS_12) {a0 = T5[(t0>>0x18) & 0xFF] ^ T6[(t3>>0x10)&0xFF] ^T7[(t2>> 8)&0xFF] ^ T8[(t1 )&0xFF] ^ K[keyOffset++];a1 = T5[(t1>>0x18) & 0xFF] ^ T6[(t0>>0x10)&0xFF] ^T7[(t3>> 8)&0xFF] ^ T8[(t2 )&0xFF] ^ K[keyOffset++];a2 = T5[(t2>>0x18) & 0xFF] ^ T6[(t1>>0x10)&0xFF] ^T7[(t0>> 8)&0xFF] ^ T8[(t3 )&0xFF] ^ K[keyOffset++];t3 = T5[(t3>>0x18) & 0xFF] ^ T6[(t2>>0x10)&0xFF] ^T7[(t1>> 8)&0xFF] ^ T8[(t0 )&0xFF] ^ K[keyOffset++];t0 = T5[(a0>>0x18) & 0xFF] ^ T6[(t3>>0x10)&0xFF] ^T7[(a2>> 8)&0xFF] ^ T8[(a1 )&0xFF] ^ K[keyOffset++];t1 = T5[(a1>>0x18) & 0xFF] ^ T6[(a0>>0x10)&0xFF] ^T7[(t3>> 8)&0xFF] ^ T8[(a2 )&0xFF] ^ K[keyOffset++];t2 = T5[(a2>>0x18) & 0xFF] ^ T6[(a1>>0x10)&0xFF] ^T7[(a0>> 8)&0xFF] ^ T8[(t3 )&0xFF] ^ K[keyOffset++];t3 = T5[(t3>>0x18) & 0xFF] ^ T6[(a2>>0x10)&0xFF] ^T7[(a1>> 8)&0xFF] ^ T8[(a0 )&0xFF] ^ K[keyOffset++];if(ROUNDS_14) {a0 = T5[(t0>>0x18) & 0xFF] ^ T6[(t3>>0x10)&0xFF] ^T7[(t2>> 8)&0xFF] ^ T8[(t1 )&0xFF] ^ K[keyOffset++];a1 = T5[(t1>>0x18) & 0xFF] ^ T6[(t0>>0x10)&0xFF] ^T7[(t3>> 8)&0xFF] ^ T8[(t2 )&0xFF] ^ K[keyOffset++];a2 = T5[(t2>>0x18) & 0xFF] ^ T6[(t1>>0x10)&0xFF] ^T7[(t0>> 8)&0xFF] ^ T8[(t3 )&0xFF] ^ K[keyOffset++];t3 = T5[(t3>>0x18) & 0xFF] ^ T6[(t2>>0x10)&0xFF] ^T7[(t1>> 8)&0xFF] ^ T8[(t0 )&0xFF] ^ K[keyOffset++];t0 = T5[(a0>>0x18) & 0xFF] ^ T6[(t3>>0x10)&0xFF] ^T7[(a2>> 8)&0xFF] ^ T8[(a1 )&0xFF] ^ K[keyOffset++];t1 = T5[(a1>>0x18) & 0xFF] ^ T6[(a0>>0x10)&0xFF] ^T7[(t3>> 8)&0xFF] ^ T8[(a2 )&0xFF] ^ K[keyOffset++];t2 = T5[(a2>>0x18) & 0xFF] ^ T6[(a1>>0x10)&0xFF] ^T7[(a0>> 8)&0xFF] ^ T8[(t3 )&0xFF] ^ K[keyOffset++];t3 = T5[(t3>>0x18) & 0xFF] ^ T6[(a2>>0x10)&0xFF] ^T7[(a1>> 8)&0xFF] ^ T8[(a0 )&0xFF] ^ K[keyOffset++];}} // if ROUNDS_12a0 = T5[(t0>>0x18) & 0xFF] ^ T6[(t3>>0x10)&0xFF] ^T7[(t2>> 8)&0xFF] ^ T8[(t1 )&0xFF] ^ K[keyOffset++];a1 = T5[(t1>>0x18) & 0xFF] ^ T6[(t0>>0x10)&0xFF] ^T7[(t3>> 8)&0xFF] ^ T8[(t2 )&0xFF] ^ K[keyOffset++];a2 = T5[(t2>>0x18) & 0xFF] ^ T6[(t1>>0x10)&0xFF] ^T7[(t0>> 8)&0xFF] ^ T8[(t3 )&0xFF] ^ K[keyOffset++];t3 = T5[(t3>>0x18) & 0xFF] ^ T6[(t2>>0x10)&0xFF] ^T7[(t1>> 8)&0xFF] ^ T8[(t0 )&0xFF] ^ K[keyOffset++];t0 = T5[(a0>>0x18) & 0xFF] ^ T6[(t3>>0x10)&0xFF] ^T7[(a2>> 8)&0xFF] ^ T8[(a1 )&0xFF] ^ K[keyOffset++];t1 = T5[(a1>>0x18) & 0xFF] ^ T6[(a0>>0x10)&0xFF] ^T7[(t3>> 8)&0xFF] ^ T8[(a2 )&0xFF] ^ K[keyOffset++];t2 = T5[(a2>>0x18) & 0xFF] ^ T6[(a1>>0x10)&0xFF] ^T7[(a0>> 8)&0xFF] ^ T8[(t3 )&0xFF] ^ K[keyOffset++];t3 = T5[(t3>>0x18) & 0xFF] ^ T6[(a2>>0x10)&0xFF] ^T7[(a1>> 8)&0xFF] ^ T8[(a0 )&0xFF] ^ K[keyOffset++];a0 = T5[(t0>>0x18) & 0xFF] ^ T6[(t3>>0x10)&0xFF] ^T7[(t2>> 8)&0xFF] ^ T8[(t1 )&0xFF] ^ K[keyOffset++];a1 = T5[(t1>>0x18) & 0xFF] ^ T6[(t0>>0x10)&0xFF] ^T7[(t3>> 8)&0xFF] ^ T8[(t2 )&0xFF] ^ K[keyOffset++];a2 = T5[(t2>>0x18) & 0xFF] ^ T6[(t1>>0x10)&0xFF] ^T7[(t0>> 8)&0xFF] ^ T8[(t3 )&0xFF] ^ K[keyOffset++];t3 = T5[(t3>>0x18) & 0xFF] ^ T6[(t2>>0x10)&0xFF] ^T7[(t1>> 8)&0xFF] ^ T8[(t0 )&0xFF] ^ K[keyOffset++];t0 = T5[(a0>>0x18) & 0xFF] ^ T6[(t3>>0x10)&0xFF] ^T7[(a2>> 8)&0xFF] ^ T8[(a1 )&0xFF] ^ K[keyOffset++];t1 = T5[(a1>>0x18) & 0xFF] ^ T6[(a0>>0x10)&0xFF] ^T7[(t3>> 8)&0xFF] ^ T8[(a2 )&0xFF] ^ K[keyOffset++];t2 = T5[(a2>>0x18) & 0xFF] ^ T6[(a1>>0x10)&0xFF] ^T7[(a0>> 8)&0xFF] ^ T8[(t3 )&0xFF] ^ K[keyOffset++];t3 = T5[(t3>>0x18) & 0xFF] ^ T6[(a2>>0x10)&0xFF] ^T7[(a1>> 8)&0xFF] ^ T8[(a0 )&0xFF] ^ K[keyOffset++];a0 = T5[(t0>>0x18) & 0xFF] ^ T6[(t3>>0x10)&0xFF] ^T7[(t2>> 8)&0xFF] ^ T8[(t1 )&0xFF] ^ K[keyOffset++];a1 = T5[(t1>>0x18) & 0xFF] ^ T6[(t0>>0x10)&0xFF] ^T7[(t3>> 8)&0xFF] ^ T8[(t2 )&0xFF] ^ K[keyOffset++];a2 = T5[(t2>>0x18) & 0xFF] ^ T6[(t1>>0x10)&0xFF] ^T7[(t0>> 8)&0xFF] ^ T8[(t3 )&0xFF] ^ K[keyOffset++];t3 = T5[(t3>>0x18) & 0xFF] ^ T6[(t2>>0x10)&0xFF] ^T7[(t1>> 8)&0xFF] ^ T8[(t0 )&0xFF] ^ K[keyOffset++];t0 = T5[(a0>>0x18) & 0xFF] ^ T6[(t3>>0x10)&0xFF] ^T7[(a2>> 8)&0xFF] ^ T8[(a1 )&0xFF] ^ K[keyOffset++];t1 = T5[(a1>>0x18) & 0xFF] ^ T6[(a0>>0x10)&0xFF] ^T7[(t3>> 8)&0xFF] ^ T8[(a2 )&0xFF] ^ K[keyOffset++];t2 = T5[(a2>>0x18) & 0xFF] ^ T6[(a1>>0x10)&0xFF] ^T7[(a0>> 8)&0xFF] ^ T8[(t3 )&0xFF] ^ K[keyOffset++];t3 = T5[(t3>>0x18) & 0xFF] ^ T6[(a2>>0x10)&0xFF] ^T7[(a1>> 8)&0xFF] ^ T8[(a0 )&0xFF] ^ K[keyOffset++];a0 = T5[(t0>>0x18) & 0xFF] ^ T6[(t3>>0x10)&0xFF] ^T7[(t2>> 8)&0xFF] ^ T8[(t1 )&0xFF] ^ K[keyOffset++];a1 = T5[(t1>>0x18) & 0xFF] ^ T6[(t0>>0x10)&0xFF] ^T7[(t3>> 8)&0xFF] ^ T8[(t2 )&0xFF] ^ K[keyOffset++];a2 = T5[(t2>>0x18) & 0xFF] ^ T6[(t1>>0x10)&0xFF] ^T7[(t0>> 8)&0xFF] ^ T8[(t3 )&0xFF] ^ K[keyOffset++];t3 = T5[(t3>>0x18) & 0xFF] ^ T6[(t2>>0x10)&0xFF] ^T7[(t1>> 8)&0xFF] ^ T8[(t0 )&0xFF] ^ K[keyOffset++];t0 = T5[(a0>>0x18) & 0xFF] ^ T6[(t3>>0x10)&0xFF] ^T7[(a2>> 8)&0xFF] ^ T8[(a1 )&0xFF] ^ K[keyOffset++];t1 = T5[(a1>>0x18) & 0xFF] ^ T6[(a0>>0x10)&0xFF] ^T7[(t3>> 8)&0xFF] ^ T8[(a2 )&0xFF] ^ K[keyOffset++];t2 = T5[(a2>>0x18) & 0xFF] ^ T6[(a1>>0x10)&0xFF] ^T7[(a0>> 8)&0xFF] ^ T8[(t3 )&0xFF] ^ K[keyOffset++];t3 = T5[(t3>>0x18) & 0xFF] ^ T6[(a2>>0x10)&0xFF] ^T7[(a1>> 8)&0xFF] ^ T8[(a0 )&0xFF] ^ K[keyOffset++];a0 = T5[(t0>>0x18) & 0xFF] ^ T6[(t3>>0x10)&0xFF] ^T7[(t2>> 8)&0xFF] ^ T8[(t1 )&0xFF] ^ K[keyOffset++];a1 = T5[(t1>>0x18) & 0xFF] ^ T6[(t0>>0x10)&0xFF] ^T7[(t3>> 8)&0xFF] ^ T8[(t2 )&0xFF] ^ K[keyOffset++];a2 = T5[(t2>>0x18) & 0xFF] ^ T6[(t1>>0x10)&0xFF] ^T7[(t0>> 8)&0xFF] ^ T8[(t3 )&0xFF] ^ K[keyOffset++];t3 = T5[(t3>>0x18) & 0xFF] ^ T6[(t2>>0x10)&0xFF] ^T7[(t1>> 8)&0xFF] ^ T8[(t0 )&0xFF] ^ K[keyOffset++];t1 = K[0];out[outOffset++] = (BYTE)(Si[(a0 >> 0x18) & 0xFF] ^ ((t1 >> 0x18) & 0xFF));out[outOffset++] = (BYTE)(Si[(t3 >> 0x10) & 0xFF] ^ ((t1 >> 0x10) & 0xFFFF));out[outOffset++] = (BYTE)(Si[(a2 >> 8) & 0xFF] ^ ((t1 >> 8) & 0xFFFFFF));out[outOffset++] = (BYTE)(Si[(a1 ) & 0xFF] ^ (t1 ));t1 = K[1];out[outOffset++] = (BYTE)(Si[(a1 >> 0x18) & 0xFF] ^ ((t1 >> 0x18) & 0xFF));out[outOffset++] = (BYTE)(Si[(a0 >> 0x10) & 0xFF] ^ ((t1 >> 0x10) & 0xFFFF));out[outOffset++] = (BYTE)(Si[(t3 >> 8) & 0xFF] ^ ((t1 >> 8) & 0xFFFFFF));out[outOffset++] = (BYTE)(Si[(a2 ) & 0xFF] ^ (t1 ));t1 = K[2];out[outOffset++] = (BYTE)(Si[(a2 >> 0x18) & 0xFF] ^ ((t1 >> 0x18) & 0xFF));out[outOffset++] = (BYTE)(Si[(a1 >> 0x10) & 0xFF] ^ ((t1 >> 0x10) & 0xFFFF));out[outOffset++] = (BYTE)(Si[(a0 >> 8) & 0xFF] ^ ((t1 >> 8) & 0xFFFFFF));out[outOffset++] = (BYTE)(Si[(t3 ) & 0xFF] ^ (t1 ));t1 = K[3];out[outOffset++] = (BYTE)(Si[(t3 >> 0x18) & 0xFF] ^ ((t1 >> 0x18) & 0xFF));out[outOffset++] = (BYTE)(Si[(a2 >> 0x10) & 0xFF] ^ ((t1 >> 0x10) & 0xFFFF));out[outOffset++] = (BYTE)(Si[(a1 >> 8) & 0xFF] ^ ((t1 >> 8) & 0xFFFFFF));out[outOffset ] = (BYTE)(Si[(a0 ) & 0xFF] ^ (t1 ));}/*** Encrypt an arbitrary length array.* @return number of bytes written.*/int CRijndael::encrypt(BYTE* in, int inOffset, int inLen, BYTE* out, int outOffset) {//int size = inLen;int written = 0;while (inLen > 0) {memset(m_iv, 0x00, sizeof(m_iv));for(int i = 0; i < BLOCK_SIZE; i++)m_iv[i] ^= in[inOffset+i];blockEncrypt(m_iv, 0, out, outOffset);memcpy(m_iv, out+outOffset, BLOCK_SIZE);inOffset += BLOCK_SIZE;outOffset += BLOCK_SIZE;inLen -= BLOCK_SIZE;written += BLOCK_SIZE;}return written;}/*** Decrypt an arbitrary length array.*/int CRijndael::decrypt(BYTE* in, int inOffset, int inLen, BYTE* out, int outOffset) {//int size = inLen;int written = 0;while (inLen > 0) {blockDecrypt(in, inOffset, out, outOffset);memset(m_iv, 0x00, sizeof(m_iv));for(int i = 0; i < BLOCK_SIZE; i++)out[outOffset+i] ^= m_iv[i];memcpy(m_iv, in+inOffset, BLOCK_SIZE);inOffset += BLOCK_SIZE;outOffset += BLOCK_SIZE;inLen -= BLOCK_SIZE;written += BLOCK_SIZE;}return written;}void CRijndael::setIV(PBYTE pIV){memcpy(m_iv, pIV, sizeof(m_iv));}long AESEncode(unsigned char * pKey, unsigned char * pIn, long nInLen, unsigned char * pOut,long nOutLen){try{//长度控制if (nOutLen!=nInLen+16){return -99;}//取待加密数据除以16后的余数，得到16－余数的值CRijndael cipher;cipher.makeKey(pKey);BYTE bPad = (BYTE)(CRijndael::BLOCK_SIZE - nInLen%CRijndael::BLOCK_SIZE);//将待加密数据中16整数倍的数据先加密（为了减少内存操作，不将数据合并后再加密）nOutLen = cipher.encrypt(pIn, 0, nInLen - (nInLen%CRijndael::BLOCK_SIZE), pOut, 0);//生成填充数据BYTE* pPad = new BYTE[CRijndael::BLOCK_SIZE];memcpy(pPad, pIn+nOutLen, nInLen - nOutLen);memset(pPad+nInLen - nOutLen, bPad, bPad);//加密填充数据nOutLen += cipher.encrypt(pPad, 0, CRijndael::BLOCK_SIZE, pOut, nOutLen);delete pPad;//返回加密后数据长度return nOutLen;}catch(...){return -99;}}long AESDecode(unsigned char * pKey, unsigned char * pIn, long nInLen, unsigned char * pOut,long nOutLen){try{//长度控制if (nOutLen!=nInLen){return -99;}if(nInLen % CRijndael::BLOCK_SIZE != 0){return -99;}//创建密钥对象CRijndael cipher;cipher.makeKey(pKey);//解密数据BYTE* pBuf = new BYTE[nInLen];long nOutLen = cipher.decrypt(pIn, 0, nInLen, pBuf, 0);//安全检查if(nOutLen != nInLen){return -99;}//安全检查，填充数据是否正确BYTE bPad = pBuf[nOutLen-1];if(CRijndael::BLOCK_SIZE < bPad){delete pBuf;return -99;}for(int i = 0; i < bPad; i++){if(pBuf[nOutLen - 1 - i] != bPad){delete pBuf;return -99;}}//保存解密后数据nOutLen -= bPad;memcpy(pOut, pBuf, nOutLen);delete pBuf;//返回解密后数据长度return nOutLen;}catch(...){return -99;}} char D2HC(int dec){if (dec>=0 && dec<=9)return dec+'0';return dec-10+'A';}void B2HS(BYTE *bin,char *hex,int len){int i;for (i=0;i<len;i++) {hex[i*2]=D2HC(bin[i]>>4);hex[i*2+1]=D2HC(bin[i]&0x0F);}}/*==================================================================== Base64编码函数 btSrc指向被编码的数据缓冲区 iSrcLen被编码的数据的大小（字节） btRet指向存放Base64编码的数据缓冲区 piRetLen指向存放Base64编码的数据缓冲区的长度 若btRet为NULL函数返回0，piRetLen传回btSrc的Base64编码所需缓冲区的大小 若btRet指向的缓冲区太小，函数返回-1 否则函数返回实际btSrc的Base64编码所需缓冲区的大小=====================================================================*/int EncodeBase64(unsigned char * btSrc, int iSrcLen, unsigned char * btRet, int * piRetLen) //Base64编码{int i = 0, j = 0, k = 0 ;BYTE EncodeBase64Map[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";i = (iSrcLen+2) / 3 * 4 ; //获取btSrc的Base64编码所需缓冲区的大小if(btRet != NULL){if(*piRetLen < i) //Base64编码所需缓冲区偏小return -1 ;*piRetLen = i ; //*piRetLen返回btSrc的Base64编码的缓冲区大小}else{*piRetLen = i ;return 0 ;}k = iSrcLen - iSrcLen % 3 ;for(i=j=0; i<k; i+=3) //编码{btRet[j++] = EncodeBase64Map[(btSrc[i]>>2)&0x3F] ;if (j >= *piRetLen )break;btRet[j++] = EncodeBase64Map[((btSrc[i]<<4) + (btSrc[i+1]>>4))&0x3F] ;if (j >= *piRetLen )break;btRet[j++] = EncodeBase64Map[((btSrc[i+1]<<2) + (btSrc[i+2]>>6))&0x3F] ;if (j >= *piRetLen )break;btRet[j++] = EncodeBase64Map[btSrc[i+2]&0x3F] ;if (j >= *piRetLen )break;}k = iSrcLen - k ;if(1 == k){btRet[j++] = EncodeBase64Map[(btSrc[i]>>2)&0x3F] ;if (j >= *piRetLen )return ++j;btRet[j++] = EncodeBase64Map[(btSrc[i]<<4)&0x3F] ;if (j >= *piRetLen )return ++j;btRet[j++] = '=' ;btRet[j++] = '=' ;if (j >= *piRetLen )return ++j;}else if(2 == k){btRet[j++] = EncodeBase64Map[(btSrc[i]>>2)&0x3F] ;if (j >= *piRetLen )return ++j;btRet[j++] = EncodeBase64Map[((btSrc[i]<<4) + (btSrc[i+1]>>4))&0x3F] ;if (j >= *piRetLen )return ++j;btRet[j++] = EncodeBase64Map[(btSrc[i+1]<<2)&0x3F] ;if (j >= *piRetLen )return ++j;btRet[j] = '=' ;if (j >= *piRetLen )return ++j;}return ++j ;}/*==================================================================== Base64解码函数 btSrc指向被解码的数据缓冲区 iSrcLen被解码的数据的大小（字节） btRet指向存放Base64解码的数据缓冲区 piRetLen指向存放Base64解码的数据缓冲区的长度 若btRet为NULL函数返回0，piRetLen传回btSrc的Base64解码所需缓冲区的大小 若btRet指向的缓冲区太小，函数返回-1 否则函数返回btSrc的Base64解码所需缓冲区的大小=====================================================================*/int DecodeBase64(unsigned char * btSrc, int iSrcLen, unsigned char * btRet, int * piRetLen) //Base64解码{int i = 0, j = 0 ;BYTE EncodeBase64Map[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";BYTE DecodeBase64Map[256] = {0} ;for(j = iSrcLen; j>0 && '='==btSrc[j-1]; --j) ; //忽略=号i = (j/4)*3+(j%4+1)/2; //计算解码后 字符串的长度if(btRet != NULL){if(*piRetLen < i) //Base64解码所需缓冲区偏小return -1 ;*piRetLen = i ; //*piRetLen返回btSrc的Base64解码的缓冲区大小}else{*piRetLen = i ;return 0 ;}j = sizeof(EncodeBase64Map) ;for(i=0; i<j; ++i)DecodeBase64Map[ EncodeBase64Map[i] ] = i ;for(i=j=0; i<iSrcLen; i+=4){btRet[j++] = DecodeBase64Map[btSrc[i ]] << 2 | DecodeBase64Map[btSrc[i+1]] >> 4 ;if (j >= *piRetLen )break;btRet[j++] = DecodeBase64Map[btSrc[i+1]] << 4 | DecodeBase64Map[btSrc[i+2]] >> 2 ;if (j >= *piRetLen )break;btRet[j++] = DecodeBase64Map[btSrc[i+2]] << 6 | DecodeBase64Map[btSrc[i+3]] ;if (j >= *piRetLen )break;}return *piRetLen ;}- Rijndaels的使用
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