自己写的AES的源代码。有的地方可能写的还不是很好。 #include using namespace std; #ifndef uint8#define uint8 unsigned char#endif uint8 sbox[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}; uint8 invsbox[256] ={    0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38,    0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB,    0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87,    0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB,    0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D,    0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E,    0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2,    0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25,    0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16,    0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92,    0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA,    0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84,    0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A,    0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06,    0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02,    0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B,    0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA,    0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73,    0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85,    0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E,    0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89,    0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B,    0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20,    0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4,    0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31,    0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F,    0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D,    0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF,    0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0,    0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61,    0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26,    0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D}; class Rijndeal{public:  char text[1000],text1[1000];    uint8 state[16];    uint8 key[16];    uint8 roundkey[11][16];  void add(uint8 s[16],uint8 k[16]); void subbyte(uint8 s[16]); void shiftrows(uint8 s[16]); void mixcolumns(uint8 s[16]); void keysehedule(); void rijndeal();//加密 void jiami(); void invsubbyte(uint8 s[16]); void invshiftrows(uint8 s[16]); void invmixcolumns(uint8 s[16]); void invrijndeal(); void jiemi();}; void Rijndeal::add(uint8 s[16],uint8 k[16]){ for(uint8 i=0;i<16;i++)  s[i]^=k[i];} void Rijndeal::subbyte(uint8 s[16]){ for(int i=0;i<16;i++)  s[i]=sbox[s[i]];} void Rijndeal::shiftrows(uint8 s[16]){ int i,t=s[4]; for(i=4;i<7;i++)s[i]=s[i+1];   s[i++]=t; t=s[i];s[i]=s[i+2];s[(i++)+2]=t; t=s[i];s[i]=s[i+2];s[i+2]=t; t=s[15]; for(i=15;i>12;i--)s[i]=s[i-1];   s[i]=t;} void Rijndeal::mixcolumns(uint8 s[16]){ int i; uint8 mix[4][4]={2,3,1,1,1,2,3,1,1,1,2,3,3,1,1,2}; uint8 ss[16]; for(i=0;i<16;i++)ss[i]=s[i]; for(i=0;i<4;i++)  for(int j=0;j<4;j++)  {   int f[4];   for(int l=0;l<4;l++)   {    f[l]=ss[i+4*l];    if(mix[j][l]==2)f[l]<<=1;    if(mix[j][l]==3)f[l]^=f[l]<<1;    if(f[l]&0x100)f[l]^=0x11b;//溢出时要异或0x11b   }   s[4*j+i]=((uint8)f[0])^((uint8)f[1])^((uint8)f[2])^((uint8)f[3]);  }} void Rijndeal::keysehedule(){ uint8 bit[10]={0x1,0x2,0x4,0x8,0x10,0x20,0x40,0x80,0x1b,0x36}; int i; for(i=0;i<16;i++)roundkey[0][i]=key[i]; for(i=1;i<=10;i++) {  for(int j=0;j<4;j++)  {   uint8 f[4];   if(j==0)   {    for(int l=0;l<4;l++)        f[l]=roundkey[i-1][3+l*4];    uint8 t=f[0];    for(l=0;l<3;l++)f[l]=f[l+1];    f[l]=t;    for(l=0;l<4;l++)f[l]=sbox[f[l]];    roundkey[i][0]=roundkey[i-1][0]^f[0]^bit[i-1];    for(l=1;l<4;l++)roundkey[i][l*4]=roundkey[i-1][l*4]^f[l];   }   else for(int l=0;l<4;l++)    roundkey[i][j+l*4]=roundkey[i][j+l*4-1]^roundkey[i-1][j+l*4];  } }} void Rijndeal::rijndeal()//组加密{ keysehedule(); add(state,roundkey[0]); for(int i=1;i<10;i++) {     subbyte(state);     shiftrows(state);     mixcolumns(state);     add(state,roundkey[i]); }    subbyte(state); shiftrows(state);    add(state,roundkey[i]);} void Rijndeal::jiami(){ int l=0,k=0,i; for(i=0;i<16&&text[i]!='\0';i++)key[i]=text[i];//把明文的前16个当做初始密钥 if(i<16)for(;i<16;i++)key[i]=' ';//不够16位补空隔 while(text[l]!='\0') {  for(i=0;i<16&&text[l]!='\0';i++,l++)state[i]=text[l];//分组  if(i<16)for(;i<16;i++)state[i]=' ';//分组不够16位，按空隔处理  rijndeal();     for(i=0;i<16;i++)   text1[k++]=state[i];    } text1[k]=NULL; cout<<"\n输出加密后的数据:\n"; cout<

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