#1
by s7un10 » 1年前
現在、c言語でAESと呼ばれる暗号化のソースコードを作成しております。
ところが、下記のエラーが発生します。
: 関数 ‘Cipher_CBC’ 内:
:200:14: エラー: 二項演算子 ^ への無効な被演算子です (‘int *’ と ‘int *’)
200 | data ^= datai;
| ^~ ~~~~~
| |
| int *
どのように修正したらよいか教えてください。
ソースコードは以下です。
code
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#define NB 4 //128bit 固定として規格されている(データの長さ)
#define NBb 16
unsigned char key[32];
int w[60];
int data[NB];
//unsigned char data[32];
int datai[NB];
//unsigned char datai[32];
int nk; //4,6,8(128,192,256 bit) 鍵の長さ
int nr; //10,12,14 ラウンド数
void SubBytes(int data[]);
void ShiftRows(int data[]);
void MixColumns(int *);
void AddRoundKey(int *,int);
int SubWord(int in);
int RotWord(int in);
void KeyExpansion(void *);
void invShiftRows(int data[]);
void invSubBytes(int data[]);
void invMixColumns(int data[],int n);
int Cipher(int *);
int Cipher_CBC(int *);
int invCipher(int *);
int invCipher_CBC(int *);
/************************************************************/
void datadump(char c[],void *dt,int len)
{
int i;
unsigned char *cdt = (unsigned char *)dt;
printf("%s",c);
for(i=0;i<len*4;i++)
{
printf("%02x",cdt);
}
printf("\n");
}
/************************************************************/
int main()
{
long loop;
clock_t start;
clock_t end;
printf("CLOCKS_PER_SEC = %ld\n",CLOCKS_PER_SEC); //単位確認用
printf("Start\n");
start = clock();
unsigned char keys[]={0x2b,0x28,0xab,0x09,0x7e,0xae,0xf7,0xcf,0x15,0xd2,0x15,0x4f,0x16,0xa6,0x88,0x3c};
unsigned char init[]={0x32,0x88,0x31,0xe0,0x43,0x5a,0x31,0x37,0xf6,0x30,0x98,0x07,0xa8,0x8d,0xa2,0x34};
unsigned char IV[]={0x26,0x85,0x34,0x4a,0xf5,0x74,0xac,0x86,0x03,0x66,0x8d,0x18,0xb7,0xa2,0xe9,0x28};
memcpy(key,keys,16); //void *memcpy(void *buf1, const void *buf2, size_t n):buf2の先頭からn文字分をbuf1へコピーします
//(void *buf1:コピー先のメモリブロック, const void *buf2:コピー元のメモリブロック, size_t n:コピーバイト数)
nk = 4; //鍵の長さ 4,6,8(128,192,256 bit)
nr = nk + 6; //ラウンド数 10,12,14
//KeyExpansion(key); //暗号化するための鍵の準備
memcpy(data,init,NBb); //NBにて 4ワード 16バイトと定義している
memcpy(datai,IV,NBb);
/*int x;
for(x = 0; x < 16; x++)
{
printf("%d, %d, %d, %d, %d, %d\n", keys[x], init[x], IV[x], key[x], data[x], datai[x]);
}
return 0;
}*/
end = clock();
printf(" <FIPS 197 P.35 Appendix C.1 AES-128 TEST>\n\n");
datadump("PLAINTEXT: ",data,4);
datadump("KEY: ",key,4);
//Cipher(data);
int i;
for(i = 0; i < 4; i++)
{
Cipher_CBC(data);
memcpy(IV,data,NBb);
}
datadump("encryption: ",data,4);
//invCipher(data);
for(i = 0; i < 1; i++)
{
invCipher_CBC(data);
memcpy(IV,data,NBb);
}
datadump("decryption: ",data,4);
printf("\n");
printf("encrypt%ld time \t: %f sec\n",loop,(double)(end-start)/CLOCKS_PER_SEC);
return 0;
}
/************************************************************/
int 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
};
/************************************************************/
int 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
};
/************************************************************/
/* ECB
int Cipher(int data[]) //暗号化
{
int i;
datadump("Data: ",data,4);
datadump("Key: ",key,4);
AddRoundKey(data,0);
for(i=1;i<nr;i++)
{
printf("i:%d\n",i);
SubBytes(data);
ShiftRows(data);
MixColumns(data);
AddRoundKey(data,i);
}
SubBytes(data);
ShiftRows(data);
AddRoundKey(data,i);
return(i);
}
*/
int Cipher_CBC(int data[])
{
int i;
datadump("Data: ",data,4);
datadump("Key: ",key,4);
data ^= datai;
AddRoundKey(data,0);
for(i=1;i<nr;i++)
{
printf("i:%d\n",i);
SubBytes(data);
ShiftRows(data);
MixColumns(data);
AddRoundKey(data,i);
}
SubBytes(data);
ShiftRows(data);
AddRoundKey(data,i);
return (i);
}
/************************************************************/
/* ECB
int invCipher(int data[]) //復号化
{
int i;
AddRoundKey(data,nr);
for(i=nr-1;i>0;i--)
{
invShiftRows(data);
invSubBytes(data);
AddRoundKey(data,i);
invMixColumns(data,i);
}
invShiftRows(data);
invSubBytes(data);
AddRoundKey(data,0);
return(nr);
}
*/
int invCipher_CBC(int data[])
{
int i;
data ^= datai;
AddRoundKey(data,nr);
for(i=nr-1;i>0;i--)
{
invShiftRows(data);
invSubBytes(data);
AddRoundKey(data,i);
invMixColumns(data,i);
}
invShiftRows(data);
invSubBytes(data);
AddRoundKey(data,0);
return (nr);
}
/************************************************************/
void SubBytes(int data[])
{
datadump("SubBytes_before: ",data,4);
int i,j;
unsigned char *cb=(unsigned char*)data;
for(i=0;i<NBb;i+=4) //理論的な意味から二重ループにしているが意味は無い
{
for(j=0;j<4;j++)
{
cb[i+j] = Sbox[cb[i+j]];
}
}
datadump("SubBytes_after: ",data,4);
}
/************************************************************/
void invSubBytes(int data[])
{
int i,j;
unsigned char *cb=(unsigned char*)data;
for(i=0;i<NBb;i+=4) //理論的な意味から二重ループにしているが意味は無い
{
for(j=0;j<4;j++)
{
cb[i+j] = invSbox[cb[i+j]];
}
}
}
/************************************************************/
void ShiftRows(int data[])
{
datadump("ShiftRows_before: ",data,4);
int i,j,i4;
unsigned char *cb=(unsigned char*)data;
unsigned char cw[NBb];
memcpy(cw,cb,sizeof(cw));
for(i=0;i<NB;i+=4)
{
i4 = i*4;
for(j=1;j<4;j++)
{
cw[i4+j+0*4] = cb[i4+j+((j+0)&3)*4];
cw[i4+j+1*4] = cb[i4+j+((j+1)&3)*4];
cw[i4+j+2*4] = cb[i4+j+((j+2)&3)*4];
cw[i4+j+3*4] = cb[i4+j+((j+3)&3)*4];
}
}
memcpy(cb,cw,sizeof(cw));
datadump("ShiftRows_after: ",data,4);
}
/************************************************************/
void invShiftRows(int data[])
{
int i,j,i4;
unsigned char *cb=(unsigned char*)data;
unsigned char cw[NBb];
memcpy(cw,cb,sizeof(cw));
for(i=0;i<NB;i+=4)
{
i4 = i*4;
for(j=1;j<4;j++)
{
cw[i4+j+((j+0)&3)*4] = cb[i4+j+0*4];
cw[i4+j+((j+1)&3)*4] = cb[i4+j+1*4];
cw[i4+j+((j+2)&3)*4] = cb[i4+j+2*4];
cw[i4+j+((j+3)&3)*4] = cb[i4+j+3*4];
}
}
memcpy(cb,cw,sizeof(cw));
}
/************************************************************/
int mul(int dt,int n)
{
int i,x=0;
for(i=8;i>0;i>>=1)
{
x <<= 1;
if(x&0x100)
x = (x ^ 0x1b) & 0xff;
if((n & i))
x ^= dt;
}
return(x);
}
/************************************************************/
int dataget(void* data,int n)
{
return(((unsigned char*)data)[n]);
}
/************************************************************/
void MixColumns(int data[])
{
datadump("MixColumns_before: ",data,4);
int i,i4,x;
for(i=0;i<NB;i++)
{
i4 = i*4;
x = mul(dataget(data,i4+0),2) ^
mul(dataget(data,i4+1),3) ^
mul(dataget(data,i4+2),1) ^
mul(dataget(data,i4+3),1);
x |= (mul(dataget(data,i4+1),2) ^
mul(dataget(data,i4+2),3) ^
mul(dataget(data,i4+3),1) ^
mul(dataget(data,i4+0),1)) << 8;
x |= (mul(dataget(data,i4+2),2) ^
mul(dataget(data,i4+3),3) ^
mul(dataget(data,i4+0),1) ^
mul(dataget(data,i4+1),1)) << 16;
x |= (mul(dataget(data,i4+3),2) ^
mul(dataget(data,i4+0),3) ^
mul(dataget(data,i4+1),1) ^
mul(dataget(data,i4+2),1)) << 24;
data = x;
}
datadump("MixColumns_after: ",data,4);
}
/************************************************************/
void invMixColumns(int data[],int n)
{
int i,i4,x;
for(i=0;i<NB;i++)
{
i4 = i*4;
x = mul(dataget(data,i4+0),14) ^
mul(dataget(data,i4+1),11) ^
mul(dataget(data,i4+2),13) ^
mul(dataget(data,i4+3), 9);
x |= (mul(dataget(data,i4+1),14) ^
mul(dataget(data,i4+2),11) ^
mul(dataget(data,i4+3),13) ^
mul(dataget(data,i4+0), 9)) << 8;
x |= (mul(dataget(data,i4+2),14) ^
mul(dataget(data,i4+3),11) ^
mul(dataget(data,i4+0),13) ^
mul(dataget(data,i4+1), 9)) << 16;
x |= (mul(dataget(data,i4+3),14) ^
mul(dataget(data,i4+0),11) ^
mul(dataget(data,i4+1),13) ^
mul(dataget(data,i4+2), 9)) << 24;
data = x;
}
}
/************************************************************/
void AddRoundKey(int data[],int n)
{
//datadump("AddRoundKey_before: ",data,4);
//datadump("Key_w: ",w,4);
int i;
for(i=0;i<NB;i++)
{
data ^= w[i+NB*n];
}
//datadump("AddRoundKey_after: ",data,4);
}
/************************************************************/
int SubWord(int in)
{
int inw=in;
unsigned char *cin=(unsigned char*)&inw;
cin[0] = Sbox[cin[0]];
cin[1] = Sbox[cin[1]];
cin[2] = Sbox[cin[2]];
cin[3] = Sbox[cin[3]];
return(inw);
}
/************************************************************/
int RotWord(int in)
{
int inw=in,inw2=0;
unsigned char *cin=(unsigned char*)&inw;
unsigned char *cin2=(unsigned char*)&inw2;
cin2[0] = cin[1];
cin2[1] = cin[2];
cin2[2] = cin[3];
cin2[3] = cin[0];
return(inw2);
}
/************************************************************/
void KeyExpansion(void *key)
{
//datadump("KEY_before: ",key,4); //又は mulを使用する
int Rcon[10]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,0x1b,0x36};
int i,temp;
memcpy(w,key,nk*4);
for(i=nk;i<NB*(nr+1);i++)
{
temp = w[i-1];
if((i%nk) == 0)
temp = SubWord(RotWord(temp)) ^ Rcon[(i/nk)-1];
else if(nk > 6 && (i%nk) == 4)
temp = SubWord(temp);
w = w[i-nk] ^ temp;
//datadump("KEY_after : ",w,8);
}
//datadump("KEY_after : ",w,64);
//datadump("KEY_after : ",temp,4);
}
/code
現在、c言語でAESと呼ばれる暗号化のソースコードを作成しております。
ところが、下記のエラーが発生します。
: 関数 ‘Cipher_CBC’ 内:
:200:14: エラー: 二項演算子 ^ への無効な被演算子です (‘int *’ と ‘int *’)
200 | data ^= datai;
| ^~ ~~~~~
| |
| int *
どのように修正したらよいか教えてください。
ソースコードは以下です。
code
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#define NB 4 //128bit 固定として規格されている(データの長さ)
#define NBb 16
unsigned char key[32];
int w[60];
int data[NB];
//unsigned char data[32];
int datai[NB];
//unsigned char datai[32];
int nk; //4,6,8(128,192,256 bit) 鍵の長さ
int nr; //10,12,14 ラウンド数
void SubBytes(int data[]);
void ShiftRows(int data[]);
void MixColumns(int *);
void AddRoundKey(int *,int);
int SubWord(int in);
int RotWord(int in);
void KeyExpansion(void *);
void invShiftRows(int data[]);
void invSubBytes(int data[]);
void invMixColumns(int data[],int n);
int Cipher(int *);
int Cipher_CBC(int *);
int invCipher(int *);
int invCipher_CBC(int *);
/************************************************************/
void datadump(char c[],void *dt,int len)
{
int i;
unsigned char *cdt = (unsigned char *)dt;
printf("%s",c);
for(i=0;i<len*4;i++)
{
printf("%02x",cdt[i]);
}
printf("\n");
}
/************************************************************/
int main()
{
long loop;
clock_t start;
clock_t end;
printf("CLOCKS_PER_SEC = %ld\n",CLOCKS_PER_SEC); //単位確認用
printf("Start\n");
start = clock();
unsigned char keys[]={0x2b,0x28,0xab,0x09,0x7e,0xae,0xf7,0xcf,0x15,0xd2,0x15,0x4f,0x16,0xa6,0x88,0x3c};
unsigned char init[]={0x32,0x88,0x31,0xe0,0x43,0x5a,0x31,0x37,0xf6,0x30,0x98,0x07,0xa8,0x8d,0xa2,0x34};
unsigned char IV[]={0x26,0x85,0x34,0x4a,0xf5,0x74,0xac,0x86,0x03,0x66,0x8d,0x18,0xb7,0xa2,0xe9,0x28};
memcpy(key,keys,16); //void *memcpy(void *buf1, const void *buf2, size_t n):buf2の先頭からn文字分をbuf1へコピーします
//(void *buf1:コピー先のメモリブロック, const void *buf2:コピー元のメモリブロック, size_t n:コピーバイト数)
nk = 4; //鍵の長さ 4,6,8(128,192,256 bit)
nr = nk + 6; //ラウンド数 10,12,14
//KeyExpansion(key); //暗号化するための鍵の準備
memcpy(data,init,NBb); //NBにて 4ワード 16バイトと定義している
memcpy(datai,IV,NBb);
/*int x;
for(x = 0; x < 16; x++)
{
printf("%d, %d, %d, %d, %d, %d\n", keys[x], init[x], IV[x], key[x], data[x], datai[x]);
}
return 0;
}*/
end = clock();
printf(" <FIPS 197 P.35 Appendix C.1 AES-128 TEST>\n\n");
datadump("PLAINTEXT: ",data,4);
datadump("KEY: ",key,4);
//Cipher(data);
int i;
for(i = 0; i < 4; i++)
{
Cipher_CBC(data);
memcpy(IV,data,NBb);
}
datadump("encryption: ",data,4);
//invCipher(data);
for(i = 0; i < 1; i++)
{
invCipher_CBC(data);
memcpy(IV,data,NBb);
}
datadump("decryption: ",data,4);
printf("\n");
printf("encrypt%ld time \t: %f sec\n",loop,(double)(end-start)/CLOCKS_PER_SEC);
return 0;
}
/************************************************************/
int 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
};
/************************************************************/
int 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
};
/************************************************************/
/* ECB
int Cipher(int data[]) //暗号化
{
int i;
datadump("Data: ",data,4);
datadump("Key: ",key,4);
AddRoundKey(data,0);
for(i=1;i<nr;i++)
{
printf("i:%d\n",i);
SubBytes(data);
ShiftRows(data);
MixColumns(data);
AddRoundKey(data,i);
}
SubBytes(data);
ShiftRows(data);
AddRoundKey(data,i);
return(i);
}
*/
int Cipher_CBC(int data[])
{
int i;
datadump("Data: ",data,4);
datadump("Key: ",key,4);
data ^= datai;
AddRoundKey(data,0);
for(i=1;i<nr;i++)
{
printf("i:%d\n",i);
SubBytes(data);
ShiftRows(data);
MixColumns(data);
AddRoundKey(data,i);
}
SubBytes(data);
ShiftRows(data);
AddRoundKey(data,i);
return (i);
}
/************************************************************/
/* ECB
int invCipher(int data[]) //復号化
{
int i;
AddRoundKey(data,nr);
for(i=nr-1;i>0;i--)
{
invShiftRows(data);
invSubBytes(data);
AddRoundKey(data,i);
invMixColumns(data,i);
}
invShiftRows(data);
invSubBytes(data);
AddRoundKey(data,0);
return(nr);
}
*/
int invCipher_CBC(int data[])
{
int i;
data ^= datai;
AddRoundKey(data,nr);
for(i=nr-1;i>0;i--)
{
invShiftRows(data);
invSubBytes(data);
AddRoundKey(data,i);
invMixColumns(data,i);
}
invShiftRows(data);
invSubBytes(data);
AddRoundKey(data,0);
return (nr);
}
/************************************************************/
void SubBytes(int data[])
{
datadump("SubBytes_before: ",data,4);
int i,j;
unsigned char *cb=(unsigned char*)data;
for(i=0;i<NBb;i+=4) //理論的な意味から二重ループにしているが意味は無い
{
for(j=0;j<4;j++)
{
cb[i+j] = Sbox[cb[i+j]];
}
}
datadump("SubBytes_after: ",data,4);
}
/************************************************************/
void invSubBytes(int data[])
{
int i,j;
unsigned char *cb=(unsigned char*)data;
for(i=0;i<NBb;i+=4) //理論的な意味から二重ループにしているが意味は無い
{
for(j=0;j<4;j++)
{
cb[i+j] = invSbox[cb[i+j]];
}
}
}
/************************************************************/
void ShiftRows(int data[])
{
datadump("ShiftRows_before: ",data,4);
int i,j,i4;
unsigned char *cb=(unsigned char*)data;
unsigned char cw[NBb];
memcpy(cw,cb,sizeof(cw));
for(i=0;i<NB;i+=4)
{
i4 = i*4;
for(j=1;j<4;j++)
{
cw[i4+j+0*4] = cb[i4+j+((j+0)&3)*4];
cw[i4+j+1*4] = cb[i4+j+((j+1)&3)*4];
cw[i4+j+2*4] = cb[i4+j+((j+2)&3)*4];
cw[i4+j+3*4] = cb[i4+j+((j+3)&3)*4];
}
}
memcpy(cb,cw,sizeof(cw));
datadump("ShiftRows_after: ",data,4);
}
/************************************************************/
void invShiftRows(int data[])
{
int i,j,i4;
unsigned char *cb=(unsigned char*)data;
unsigned char cw[NBb];
memcpy(cw,cb,sizeof(cw));
for(i=0;i<NB;i+=4)
{
i4 = i*4;
for(j=1;j<4;j++)
{
cw[i4+j+((j+0)&3)*4] = cb[i4+j+0*4];
cw[i4+j+((j+1)&3)*4] = cb[i4+j+1*4];
cw[i4+j+((j+2)&3)*4] = cb[i4+j+2*4];
cw[i4+j+((j+3)&3)*4] = cb[i4+j+3*4];
}
}
memcpy(cb,cw,sizeof(cw));
}
/************************************************************/
int mul(int dt,int n)
{
int i,x=0;
for(i=8;i>0;i>>=1)
{
x <<= 1;
if(x&0x100)
x = (x ^ 0x1b) & 0xff;
if((n & i))
x ^= dt;
}
return(x);
}
/************************************************************/
int dataget(void* data,int n)
{
return(((unsigned char*)data)[n]);
}
/************************************************************/
void MixColumns(int data[])
{
datadump("MixColumns_before: ",data,4);
int i,i4,x;
for(i=0;i<NB;i++)
{
i4 = i*4;
x = mul(dataget(data,i4+0),2) ^
mul(dataget(data,i4+1),3) ^
mul(dataget(data,i4+2),1) ^
mul(dataget(data,i4+3),1);
x |= (mul(dataget(data,i4+1),2) ^
mul(dataget(data,i4+2),3) ^
mul(dataget(data,i4+3),1) ^
mul(dataget(data,i4+0),1)) << 8;
x |= (mul(dataget(data,i4+2),2) ^
mul(dataget(data,i4+3),3) ^
mul(dataget(data,i4+0),1) ^
mul(dataget(data,i4+1),1)) << 16;
x |= (mul(dataget(data,i4+3),2) ^
mul(dataget(data,i4+0),3) ^
mul(dataget(data,i4+1),1) ^
mul(dataget(data,i4+2),1)) << 24;
data[i] = x;
}
datadump("MixColumns_after: ",data,4);
}
/************************************************************/
void invMixColumns(int data[],int n)
{
int i,i4,x;
for(i=0;i<NB;i++)
{
i4 = i*4;
x = mul(dataget(data,i4+0),14) ^
mul(dataget(data,i4+1),11) ^
mul(dataget(data,i4+2),13) ^
mul(dataget(data,i4+3), 9);
x |= (mul(dataget(data,i4+1),14) ^
mul(dataget(data,i4+2),11) ^
mul(dataget(data,i4+3),13) ^
mul(dataget(data,i4+0), 9)) << 8;
x |= (mul(dataget(data,i4+2),14) ^
mul(dataget(data,i4+3),11) ^
mul(dataget(data,i4+0),13) ^
mul(dataget(data,i4+1), 9)) << 16;
x |= (mul(dataget(data,i4+3),14) ^
mul(dataget(data,i4+0),11) ^
mul(dataget(data,i4+1),13) ^
mul(dataget(data,i4+2), 9)) << 24;
data[i] = x;
}
}
/************************************************************/
void AddRoundKey(int data[],int n)
{
//datadump("AddRoundKey_before: ",data,4);
//datadump("Key_w: ",w,4);
int i;
for(i=0;i<NB;i++)
{
data[i] ^= w[i+NB*n];
}
//datadump("AddRoundKey_after: ",data,4);
}
/************************************************************/
int SubWord(int in)
{
int inw=in;
unsigned char *cin=(unsigned char*)&inw;
cin[0] = Sbox[cin[0]];
cin[1] = Sbox[cin[1]];
cin[2] = Sbox[cin[2]];
cin[3] = Sbox[cin[3]];
return(inw);
}
/************************************************************/
int RotWord(int in)
{
int inw=in,inw2=0;
unsigned char *cin=(unsigned char*)&inw;
unsigned char *cin2=(unsigned char*)&inw2;
cin2[0] = cin[1];
cin2[1] = cin[2];
cin2[2] = cin[3];
cin2[3] = cin[0];
return(inw2);
}
/************************************************************/
void KeyExpansion(void *key)
{
//datadump("KEY_before: ",key,4); //又は mulを使用する
int Rcon[10]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,0x1b,0x36};
int i,temp;
memcpy(w,key,nk*4);
for(i=nk;i<NB*(nr+1);i++)
{
temp = w[i-1];
if((i%nk) == 0)
temp = SubWord(RotWord(temp)) ^ Rcon[(i/nk)-1];
else if(nk > 6 && (i%nk) == 4)
temp = SubWord(temp);
w[i] = w[i-nk] ^ temp;
//datadump("KEY_after : ",w,8);
}
//datadump("KEY_after : ",w,64);
//datadump("KEY_after : ",temp,4);
}
/code