package com.aes;
public class CBm53AES {
char[] Sbox = new char[256];
char[] InvSbox = new char[256];
char[][][] w = new char[11][4][4];
public CBm53AES(char[] key) {
char sBox[] =
{ /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76, /*0*/
0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, /*1*/
0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15, /*2*/
0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75, /*3*/
0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84, /*4*/
0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf, /*5*/
0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8, /*6*/
0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, /*7*/
0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73, /*8*/
0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb, /*9*/
0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79, /*a*/
0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08, /*b*/
0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a, /*c*/
0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e, /*d*/
0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf, /*e*/
0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 /*f*/
};
char invsBox[] =
{ /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb, /*0*/
0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb, /*1*/
0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e, /*2*/
0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25, /*3*/
0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92, /*4*/
0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84, /*5*/
0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06, /*6*/
0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b, /*7*/
0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73, /*8*/
0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e, /*9*/
0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b, /*a*/
0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4, /*b*/
0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f, /*c*/
0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef, /*d*/
0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61, /*e*/
0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d /*f*/
};
System.arraycopy(sBox, 0, Sbox, 0, 256);
System.arraycopy(invsBox, 0, InvSbox, 0, 256);
KeyExpansion(key, w);
}
void Cipher(char[] input, char[] output) {
char uch_input[] = new char[1024];
strToUChar(input, uch_input);
Cipher(uch_input);
ucharToHex(uch_input, output, 16);
}
/*********************************************
* 函数名: CipherStr
* 描述: 整段文档加密
*
* @参数: char[] input
* @参数: char[] output
* @返回值: void
*********************************************/
void CipherStr(char[] input, char[] output) {
int nLen = input.length;
char[] newAlock = new char[input.length + (16 - nLen % 16) + 1];
System.arraycopy(input, 0, newAlock, 0, input.length);
for (int n = 0; n < (16 - nLen % 16); n++) {
newAlock[nLen + n] = (char) (16 - nLen % 16);
}
newAlock[nLen + (16 - nLen % 16)] = 0;
int i = 0, j = 0;
char block[] = new char[17];
for (i = 0; i < 17; i++) {
block[i] = 0;
}
char e_block[] = new char[33];
for (i = 0; i < 33; i++) {
e_block[i] = 0;
}
i = 0;
while (newAlock[i] != '\0') {
System.arraycopy(newAlock, i, block, 0, 16);
Cipher(block, e_block);
System.arraycopy(e_block, 0, output, j, 32);
i += 16;
j += 32;
}
output[j] = '\0';
}
void InvCipher(char[] input, char[] output) {
char[] uch_input = new char[1024];
hexToUChar(input, uch_input);
InvCipher(uch_input);
ucharToStr(uch_input, output, 16);
}
/*********************************************
* 函数名: InvCipherStr
* 描述: 对整段文字解密
*
* @参数: char[] input 16进制密文
* @参数: char[] output 原文
* @返回值: void
*********************************************/
void InvCipherStr(char[] input, char[] output) {
char[] uch_input = new char[input.length / 2];
char[] uch_output = new char[output.length];
hexToUChar(input, uch_input);
int nBuf = 0;
char ublock[] = new char[16];
int n = strlen(input);
while (nBuf < (int) (strlen(input) / 2)) {
System.arraycopy(uch_input, nBuf, ublock, 0, 16);
InvCipher(ublock);
System.arraycopy(ublock, 0, uch_output, nBuf, 16);
nBuf += 16;
}
ucharToStr(uch_output, output, nBuf);
//剔除用于补充16字节的字符
int nLen = strlen(output);
for (n = nLen - 1; n >= nLen - 16; n--) {
if (1 <= output[n] && 16 >= output[n]) {
output[n] = 0;
} else {
break;
}
}
}
char[] Cipher(char[] input) {
char[][] state = new char[4][4];
int i, r, c;
for (r = 0; r < 4; r++) {
for (c = 0; c < 4; c++) {
state[r][c] = input[c * 4 + r];
}
}
AddRoundKey(state, w[0]);
for (i = 1; i <= 10; i++) {
SubBytes(state);
ShiftRows(state);
if (i != 10) MixColumns(state);
AddRoundKey(state, w[i]);
}
for (r = 0; r < 4; r++) {
for (c =