php AES128位加密

gaojinguan

借用aes.php  128位加密方式
aes.php
<?PHP
/*
* @filename: AES.php
* @note: In version 4 of PHP, the function "__construct" is not executed, and it doesn't approve the private key words.
*/
class AES{
var $rcon = array (
0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8,
0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4,
0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91);
// S盒变换
var $S = array(
99, 124, 119, 123, 242, 107, 111, 197,  48,   1, 103,  43, 254, 215, 171, 118,
202, 130, 201, 125, 250,  89,  71, 240, 173, 212, 162, 175, 156, 164, 114, 192,
183, 253, 147,  38,  54,  63, 247, 204,  52, 165, 229, 241, 113, 216,  49,  21,
4, 199,  35, 195,  24, 150,   5, 154,   7,  18, 128, 226, 235,  39, 178, 117,
9, 131,  44,  26,  27, 110,  90, 160,  82,  59, 214, 179,  41, 227,  47, 132,
83, 209,   0, 237,  32, 252, 177,  91, 106, 203, 190,  57,  74,  76,  88, 207,
208, 239, 170, 251,  67,  77,  51, 133,  69, 249,   2, 127,  80,  60, 159, 168,
81, 163,  64, 143, 146, 157,  56, 245, 188, 182, 218,  33,  16, 255, 243, 210,
205,  12,  19, 236,  95, 151,  68,  23, 196, 167, 126,  61, 100,  93,  25, 115,
96, 129,  79, 220,  34,  42, 144, 136,  70, 238, 184,  20, 222,  94,  11, 219,
224,  50,  58,  10,  73,   6,  36,  92, 194, 211, 172,  98, 145, 149, 228, 121,
231, 200,  55, 109,141, 213,  78, 169, 108,  86, 244, 234, 101, 122, 174,   8,
186, 120,  37,  46,  28, 166, 180, 198, 232, 221, 116,  31,  75, 189, 139, 138,
112,  62, 181, 102,  72,   3, 246,  14,  97,  53,  87, 185, 134, 193,  29, 158,
225, 248, 152,  17, 105, 217, 142, 148, 155,  30, 135, 233, 206,  85,  40, 223,
140, 161, 137,  13, 191, 230,  66, 104,  65, 153,  45,  15, 176,  84, 187,  22
);

// S盒逆变换
var $Si = array(
82,   9, 106, 213,  48,  54, 165,  56, 191,  64, 163, 158, 129, 243, 215, 251,
124, 227,  57, 130, 155,  47, 255, 135,  52, 142,  67,  68, 196, 222, 233, 203,
84, 123, 148,  50, 166, 194,  35,  61, 238,  76, 149,  11,  66, 250, 195,  78,
8,  46, 161, 102,  40, 217,  36, 178, 118,  91, 162,  73, 109, 139, 209,  37,
114, 248, 246, 100, 134, 104, 152,  22, 212, 164,  92, 204,  93, 101, 182, 146,
108, 112,  72,  80, 253, 237, 185, 218,  94,  21,  70,  87, 167, 141, 157, 132,
144, 216, 171,   0, 140, 188, 211,  10, 247, 228,  88,   5, 184, 179,  69,   6,
208,  44,  30, 143, 202,  63,  15,   2, 193, 175, 189,   3,   1,  19, 138, 107,
58, 145,  17,  65,  79, 103, 220, 234, 151, 242, 207, 206, 240, 180, 230, 115,
150, 172, 116,  34, 231, 173,  53, 133, 226, 249,  55, 232,  28, 117, 223, 110,
71, 241,  26, 113,  29,  41, 197, 137, 111, 183,  98,  14, 170,  24, 190,  27,
252,  86,  62,  75, 198, 210, 121,  32, 154, 219, 192, 254, 120, 205,  90, 244,
31, 221, 168,  51, 136,   7, 199,  49, 177,  18,  16,  89,  39, 128, 236,  95,
96,  81, 127, 169,  25, 181,  74,  13,  45, 229, 122, 159, 147, 201, 156, 239,
160, 224,  59,  77, 174,  42, 245, 176, 200, 235, 187,  60, 131,  83, 153,  97,
23,  43,   4, 126, 186, 119, 214,  38, 225, 105,  20,  99,  85, 33,  12, 125
);   

// 线性混合层列变换矩阵
var $T2 = array(
0,   2,   4,   6,   8,  10,  12,  14,  16,  18,  20,  22,  24,  26,  28, 30,
32,  34,  36,  38,  40,  42,  44,  46,  48,  50,  52,  54,  56,  58,  60, 62,
64,  66,  68,  70,  72,  74,  76,  78,  80,  82,  84,  86,  88,  90,  92, 94,
96,  98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126,
128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158,
160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180, 182, 184, 186, 188, 190,
192, 194, 196, 198, 200, 202, 204, 206, 208, 210, 212, 214, 216, 218, 220, 222,
224, 226, 228, 230, 232, 234, 236, 238, 240, 242, 244, 246, 248, 250, 252, 254,
27,  25,  31,  29,  19, 17, 23, 21,
11, 9, 15, 13, 3, 1, 7, 5, 59, 57, 63, 61, 51, 49, 55,
53, 43, 41, 47, 45, 35, 33, 39, 37, 91, 89, 95, 93, 83, 81,
87, 85, 75, 73, 79, 77, 67, 65, 71, 69, 123, 121, 127, 125, 115,
113, 119, 117, 107, 105, 111, 109, 99, 97, 103, 101, 155, 153, 159, 157,
147, 145, 151, 149, 139, 137, 143, 141, 131, 129, 135, 133, 187, 185, 191,
189, 179, 177, 183, 181, 171, 169, 175, 173, 163, 161, 167, 165, 219, 217,
223, 221, 211, 209, 215, 213, 203, 201, 207, 205, 195, 193, 199, 197, 251,
249, 255, 253, 243, 241, 247, 245, 235, 233, 239, 237, 227, 225, 231, 229 );
var $T3 = array(
0, 3, 6, 5, 12, 15, 10, 9, 24, 27, 30, 29, 20, 23, 18, 17,
48, 51, 54, 53, 60, 63, 58, 57, 40, 43, 46, 45, 36, 39, 34,
33, 96, 99, 102, 101, 108, 111, 106, 105, 120, 123, 126, 125, 116, 119,
114, 113, 80, 83, 86, 85, 92, 95, 90, 89, 72, 75, 78, 77, 68,
71, 66, 65, 192, 195, 198, 197, 204, 207, 202, 201, 216, 219, 222, 221,
212, 215, 210, 209, 240, 243, 246, 245, 252, 255, 250, 249, 232, 235, 238,
237, 228, 231, 226, 225, 160, 163, 166, 165, 172, 175, 170, 169, 184, 187,
190, 189, 180, 183, 178, 177, 144, 147, 150, 149, 156, 159, 154, 153, 136,
139, 142, 141, 132, 135, 130, 129, 155, 152, 157, 158, 151, 148, 145, 146,
131, 128, 133, 134, 143, 140, 137, 138, 171, 168, 173, 174, 167, 164, 161,
162, 179, 176, 181, 182, 191, 188, 185, 186, 251, 248, 253, 254, 247, 244,
241, 242, 227, 224, 229, 230, 239, 236, 233, 234, 203, 200, 205, 206, 199,
196, 193, 194, 211, 208, 213, 214, 223, 220, 217, 218, 91, 88, 93, 94,
87, 84, 81, 82, 67, 64, 69, 70, 79, 76, 73, 74, 107, 104, 109,
110, 103, 100, 97, 98, 115, 112, 117, 118, 127, 124, 121, 122, 59, 56,
61, 62, 55, 52, 49, 50, 35, 32, 37, 38, 47, 44, 41, 42, 11,
8, 13, 14, 7, 4, 1, 2, 19, 16, 21, 22, 31, 28, 25, 26 );

// 线性混合层列变换逆矩阵
var $T9 = array(
0, 9, 18, 27, 36, 45, 54, 63, 72, 65, 90, 83, 108, 101, 126, 119,
144, 153, 130, 139, 180, 189, 166, 175, 216, 209, 202, 195, 252, 245, 238,
231, 59, 50, 41, 32, 31, 22, 13, 4, 115, 122, 97, 104, 87, 94,
69, 76, 171, 162, 185, 176, 143, 134, 157, 148, 227, 234, 241, 248, 199,
206, 213, 220, 118, 127, 100, 109, 82, 91, 64, 73, 62, 55, 44, 37,
26, 19, 8, 1, 230, 239, 244, 253, 194, 203, 208, 217, 174, 167, 188,
181, 138, 131, 152, 145, 77, 68, 95, 86, 105, 96, 123, 114, 5, 12,
23, 30, 33, 40, 51, 58, 221, 212, 207, 198, 249, 240, 235, 226, 149,
156, 135, 142, 177, 184, 163, 170, 236, 229, 254, 247, 200, 193, 218, 211,
164, 173, 182, 191, 128, 137, 146, 155, 124, 117, 110, 103, 88, 81, 74,
67, 52, 61, 38, 47, 16, 25, 2, 11, 215, 222, 197, 204, 243, 250,
225, 232, 159, 150, 141, 132, 187, 178, 169, 160, 71, 78, 85, 92, 99,
106, 113, 120, 15, 6, 29, 20, 43, 34, 57, 48, 154, 147, 136, 129,
190, 183, 172, 165, 210, 219, 192, 201, 246, 255, 228, 237, 10, 3, 24,
17, 46, 39, 60, 53, 66, 75, 80, 89, 102, 111, 116, 125, 161, 168,
179, 186, 133, 140, 151, 158, 233, 224, 251, 242, 205, 196, 223, 214, 49,
56, 35, 42, 21, 28, 7, 14, 121, 112, 107, 98, 93, 84, 79, 70);

/* Definicion de 0x0b*state[j] en GF(2^8)(para InvMixColumns)*/
var $T11 = array(
0, 11, 22, 29, 44, 39, 58, 49, 88, 83, 78, 69, 116, 127, 98, 105,
176, 187, 166, 173, 156, 151, 138, 129, 232, 227, 254, 245, 196, 207, 210,
217, 123, 112, 109, 102, 87, 92, 65, 74, 35, 40, 53, 62, 15, 4,
25, 18, 203, 192, 221, 214, 231, 236, 241, 250, 147, 152, 133, 142, 191,
180, 169, 162, 246, 253, 224, 235, 218, 209, 204, 199, 174, 165, 184, 179,
130, 137, 148, 159, 70, 77, 80, 91, 106, 97, 124, 119, 30, 21, 8,
3, 50, 57, 36, 47, 141, 134, 155, 144, 161, 170, 183, 188, 213, 222,
195, 200, 249, 242, 239, 228, 61, 54, 43, 32, 17, 26, 7, 12, 101,
110, 115, 120, 73, 66, 95, 84, 247, 252, 225, 234, 219, 208, 205, 198,
175, 164, 185, 178, 131, 136, 149, 158, 71, 76, 81, 90, 107, 96, 125,
118, 31, 20, 9, 2, 51, 56, 37, 46, 140, 135, 154, 145, 160, 171,
182, 189, 212, 223, 194, 201, 248, 243, 238, 229, 60, 55, 42, 33, 16,
27, 6, 13, 100, 111, 114, 121, 72, 67, 94, 85, 1, 10, 23, 28,
45, 38, 59, 48, 89, 82, 79, 68, 117, 126, 99, 104, 177, 186, 167,
172, 157, 150, 139, 128, 233, 226, 255, 244, 197, 206, 211, 216, 122, 113,
108, 103, 86, 93, 64, 75, 34, 41, 52, 63, 14, 5, 24, 19, 202,
193, 220, 215, 230, 237, 240, 251, 146, 153, 132, 143, 190, 181, 168, 163);

/* Definicion de 0x0d*state[j] en GF(2^8) (para InvMixColumns)*/
var $T13 = array(
0, 13, 26, 23, 52, 57, 46, 35, 104, 101, 114, 127, 92, 81, 70, 75,
208, 221, 202, 199, 228, 233, 254, 243, 184, 181, 162, 175, 140, 129, 150,
155, 187, 182, 161, 172, 143, 130, 149, 152, 211, 222, 201, 196, 231, 234,
253, 240, 107, 102, 113, 124, 95, 82, 69, 72, 3, 14, 25, 20, 55,
58, 45, 32, 109, 96, 119, 122, 89, 84, 67, 78, 5, 8, 31, 18,
49, 60, 43, 38, 189, 176, 167, 170, 137, 132, 147, 158, 213, 216, 207,
194, 225, 236, 251, 246, 214, 219, 204, 193, 226, 239, 248, 245, 190, 179,
164, 169, 138, 135, 144, 157, 6, 11, 28, 17, 50, 63, 40, 37, 110,
99, 116, 121, 90, 87, 64, 77, 218, 215, 192, 205, 238, 227, 244, 249,
178, 191, 168, 165, 134, 139, 156, 145, 10, 7, 16, 29, 62, 51, 36,
41, 98, 111, 120, 117, 86, 91, 76, 65, 97, 108, 123, 118, 85, 88,
79, 66, 9, 4, 19, 30, 61, 48, 39, 42, 177, 188, 171, 166, 133,
136, 159, 146, 217, 212, 195, 206, 237, 224, 247, 250, 183, 186, 173, 160,
131, 142, 153, 148, 223, 210, 197, 200, 235, 230, 241, 252, 103, 106, 125,
112, 83, 94, 73, 68, 15, 2, 21, 24, 59, 54, 33, 44, 12, 1,
22, 27, 56, 53, 34, 47, 100, 105, 126, 115, 80, 93, 74, 71, 220,
209, 198, 203, 232, 229, 242, 255, 180, 185, 174, 163, 128, 141, 154, 151);
var $T14 = array (
0, 14, 28, 18, 56, 54, 36, 42, 112, 126, 108, 98, 72, 70, 84, 90,
224, 238, 252, 242, 216, 214, 196, 202, 144, 158, 140, 130, 168, 166, 180,
186, 219, 213, 199, 201, 227, 237, 255, 241, 171, 165, 183, 185, 147, 157,
143, 129, 59, 53, 39, 41, 3, 13, 31, 17, 75, 69, 87, 89, 115,
125, 111, 97, 173, 163, 177, 191, 149, 155, 137, 135, 221, 211, 193, 207,
229, 235, 249, 247, 77, 67, 81, 95, 117, 123, 105, 103, 61, 51, 33,
47, 5, 11, 25, 23, 118, 120, 106, 100, 78, 64, 82, 92, 6, 8,
26, 20, 62, 48, 34, 44, 150, 152, 138, 132, 174, 160, 178, 188, 230,
232, 250, 244, 222, 208, 194, 204, 65, 79, 93, 83, 121, 119, 101, 107,
49, 63, 45, 35, 9, 7, 21, 27, 161, 175, 189, 179, 153, 151, 133,
139, 209, 223, 205, 195, 233, 231, 245, 251, 154, 148, 134, 136, 162, 172,
190, 176, 234, 228, 246, 248, 210, 220, 206, 192, 122, 116, 102, 104, 66,
76, 94, 80, 10, 4, 22, 24, 50, 60, 46, 32, 236, 226, 240, 254,
212, 218, 200, 198, 156, 146, 128, 142, 164, 170, 184, 182, 12, 2, 16,
30, 52, 58, 40, 38, 124, 114, 96, 110, 68, 74, 88, 86, 55, 57,
43, 37, 15, 1, 19, 29, 71, 73, 91, 85, 127, 113, 99, 109, 215,
217, 203, 197, 239, 225, 243, 253, 167, 169, 187, 181, 159, 145, 131, 141);

var $Nr = 10;// 轮变换圈数
var $Nb = 4;// 存放中间结果状态的矩阵列数
var $Nk = 4;
var $state = array(array());// 存放中间结果状态
var $shifts_r = array(array(0, 1, 2, 3),array(3, 0, 1, 2),array(2, 3, 0, 1),array(1, 2, 3, 0));
var $shifts_l = array(array(0, 1, 2, 3),array(1, 2, 3, 0),array(2, 3, 0, 1),array(3, 0, 1, 2));
var $debug = false;
var $toHex = false;
/*
* 构造函数
* @param: hex 结果是否以十六进制显示，true：显示
* @param: debug 是否打印调试信息 true：打印调试信息
*/
function AES($hex = false, $debug = false)
{
$this->debug = $debug;
$this->toHex = $hex;  
}
//////////////////////////////////////////////////////////////////
/*
* @function toHexString 把字符串中的每个字符转换成十六进制数
*/
private function toHexString ($sa)
{
$buf = "";
for ($i = 0; $i < strlen($sa); $i++)
{
$val = dechex(ord($sa{$i}));   
if(strlen($val)< 2)
$val = "0".$val;
$buf .= $val;
}
return $buf;
}  
//////////////////////////////////////////////////////////////////
/*
* @function fromHexString 把十六进制数转换成字符串
*/
private function fromHexString($sa)
{
$buf = "";
for($i = 0; $i < strlen($sa); $i += 2)
{
$val = chr(hexdec(substr($sa, $i, 2)));
$buf .= $val;
}
return $buf;
}

//////////////////////////////////////////////////////////////////
/*
* @function showInt 输出调试信息
*/
private function showInt($texto)
{
if($this->debug)
{
echo($texto.": ");
for($i = 0; $i<4; $i++)
{
for($j = 0; $j<4; $j++)
{
echo(dechex($this->state[$j][$i])." ");
}
}
echo ("<br/>");
}
}   
//////////////////////////////////////////////////////////////////
/*
* @function makeKey 密钥扩展(128bit)
* @param hash　密钥
* @return array　返回三维数组
*/
public function makeKey($hash)
{
if(strlen($hash) < 16)
for($i = strlen($hash); $i < 16; $i++)
$hash .= " ";
$rconpocharer = 0;
$tk = array(array());;
$rk = array(array(array()));
for($j = 0; $j < $this->Nk; $j++)
for($i = 0; $i < 4; $i++)
$tk[$i][$j] = ord($hash[$j*4+$i]) > 256 ? ord($hash[$j*4+$i])%256 : ord($hash[$j*4+$i]);// 转换成ASCII码值
$t = 0;
for($j = 0; ($j < $this->Nk) && ($t < ($this->Nr+1)*$this->Nb); $j++, $t++)
for($i = 0; $i < 4; $i++)
$rk[$t / $this->Nb][$i][$t % $this->Nb] = $tk[$i][$j];
while ($t < ($this->Nr+1)*$this->Nb)
{
for($i = 0; $i < 4; $i++)
$tk[$i][0] ^= $this->S[$tk[($i+1)%4][$this->Nk-1]];
$tk[0][0] ^= $this->rcon[$rconpocharer++];
for($j = 1; $j < $this->Nk; $j++)
for($i = 0; $i < 4; $i++)
$tk[$i][$j] ^= $tk[$i][$j-1];
for($j = 0; ($j < $this->Nk) && ($t < ($this->Nr+1)*$this->Nb); $j++, $t++)
for($i = 0; $i < 4; $i++)
$rk[$t / $this->Nb][$i][$t % $this->Nb] = $tk[$i][$j];
}
return $rk;
}
//////////////////////////////////////////////////////////////////
/*
* @function: encryptString 加密字符串
* @param: excodeStr 被加密的字符串
* @param: expandedKeys 扩展后的密钥
* @return: 返回加密后的字符串
*/
public function encryptString($excodeStr, $expandedKeys)
{
if(strlen($excodeStr) % 16 == 0 )
$cnt = strlen($excodeStr) /16;
else
{
$cnt = ceil(strlen($excodeStr) /16);
for($i = strlen($excodeStr); $i < $cnt *16; $i++)
$excodeStr .= " ";
}
$out = "";
for($i = 0; $i < $cnt; $i++)
$out .= $this->blockEncrypt(substr($excodeStr,$i*16,16), $expandedKeys);
if($this->toHex)
$out = $this->toHexString($out);
return $out;
}

//////////////////////////////////////////////////////////////////
/*
* @function blockEncrypt　分块加密
*/
public function blockEncrypt($in, $keys)
{
for ($i = 0; $i < 4; $i++)
for ($j = 0; $j < $this->Nb; $j++)
$this->state[$j][$i] = ord($in{$i*4+$j});
$this->showInt("Cifrado: <br/> State Inicial");
$this->KeyAddition($keys[0]);
$this->showInt("Ronda 0 :: KeyAddition");
for($r = 1; $r < $this->Nr; $r++)
{
$this->ByteSubShiftRow();
$this->showInt("Ronda $r :: ByteSubShiftRow");
$this->MixColumnKeyAddition($keys[$r]);
$this->showInt("Ronda $r :: MixColumnKeyAddition");
}
$this->ByteSubShiftRow();
$this->showInt("Ronda final :: ByteSubShiftRow");
$this->KeyAddition($keys[$this->Nr]);
$this->showInt("Ronda final :: KeyAddition ==> Resultado");
$out = "";
for($i = 0; $i < 4; $i++)
for ($j = 0; $j < 4; $j++)
$out .=chr($this->state[$j][$i]);
return $out;
}

//////////////////////////////////////////////////////////////////
/*
* @function: decryptString 解密字符串
* @param: decodeStr 被解密的字符串
* @param: expandedKeys 扩展后的密钥
* @return: 返回解密后的字符串
*/
public function decryptString($decodeStr, $expandedKeys)
{
if($this->toHex)
$decodeStr = $this->fromHexString($decodeStr);
if(strlen($decodeStr) % 16 == 0 )
$cnt = strlen($decodeStr) /16;
else
return;
$out = "";
for($i = 0; $i < $cnt; $i++)
{
$out .= $this->blockDecrypt(substr($decodeStr,$i*16,16),$expandedKeys);
}
return trim($out);
}
//////////////////////////////////////////////////////////////////
/*
* @function blockDecrypt 分块解密
*/
private function blockDecrypt($in, $keys)
{
for ($i = 0; $i < 4; $i++)
for ($j = 0; $j < $this->Nb; $j++)
$this->state[$j][$i] = ord($in{$i*4+$j});
$this->showInt("Descifrado: <br/> State Inicial");        
$this->KeyAddition($keys[$this->Nr]);
$this->showInt("Ronda 0 :: KeyAddition");
for($r = $this->Nr-1; $r > 0; $r--)
{
$this->InvShiftRowInvByteSub();
$this->showInt("Ronda ". ($this->Nr - $r)." :: InvShiftRowInvByteSub");
$this->KeyAddition($keys[$r]);
$this->showInt("Ronda ".($this->Nr - $r)." :: KeyAddition");
$this->InvMixColumn();
$this->showInt("Ronda ".($this->Nr - $r)." :: InvMiColumn");
}
$this->InvShiftRowInvByteSub();  
$this->showInt("Ronda final :: InvShiftRowInvByteSub");
$this->KeyAddition($keys[0]);
$this->showInt("Ronda final :: KeyAddition ==> Resultado");
$out = "";
for($i = 0; $i < 4; $i++)
for ($j = 0; $j < 4; $j++)
$out .= chr($this->state[$j][$i]);
return $out;
}

//////////////////////////////////////////////////////////////////
/*
* @function ByteSubShiftRow 作用在状态中每个字节上的一种非线性字节转换
*/
private function ByteSubShiftRow()
{
$tmp = array(array());
for($i = 0; $i < 4; $i++)
for($j = 0; $j < $this->Nb; $j++)               
$tmp[$i][$this->shifts_r[$i][$j]] = $this->S[$this->state[$i][$j]];
$this->state = $tmp;
}
//////////////////////////////////////////////////////////////////
/*
* @function KeyAddition 将圈密钥状态中的对应字节按位"异或"
*/
private function KeyAddition($rk)
{
for($i = 0; $i < 4; $i++)
for($j = 0; $j < $this->Nb; $j++)
$this->state[$i][$j] ^= $rk[$i][$j];
}
/////////////////////////////////////////////////////////////////
/*
* @function InvShiftRowInvByteSub 作用在状态中每个字节上的一种非线性字节反转换，与ByteSubShiftRow()互逆
*/
private function InvShiftRowInvByteSub()
{        
$tmp = array(array());
for($i = 0; $i < 4; $i++)
for($j = 0; $j < $this->Nb; $j++)
$tmp[$i][$this->shifts_l[$i][$j]] = $this->Si[$this->state[$i][$j]];
$this->state = $tmp;
}  
//////////////////////////////////////////////////////////////////
/*
* @function MixColumnKeyAddition 混合列变换
*/
private function MixColumnKeyAddition($rk)
{
$b = array(array());
for($j = 0; $j < 4; $j++)
for($i = 0; $i < $this->Nb; $i++)
{
$b[$i][$j] = $this->T2[$this->state[$i][$j]] ^  $this->T3[$this->state[($i + 1) % 4][$j]] ^ $this->state[($i + 2) % 4][$j] ^ $this->state[($i + 3) % 4][$j];
$b[$i][$j] ^= $rk[$i][$j];
}
$this->state = $b;
}
//////////////////////////////////////////////////////////////////
/*
* @function InvMixColumn 混合列逆变换
*/
private function InvMixColumn()
{
$b = array(array());
for($j = 0; $j < 4; $j++)
for($i = 0; $i < $this->Nb; $i++)
$b[$i][$j] = $this->T14[$this->state[$i][$j]] ^ $this->T11[$this->state[($i + 1) % 4][$j]] ^ $this->T13[$this->state[($i + 2) % 4][$j]] ^ $this->T9[$this->state[($i + 3) % 4][$j]];
$this->state = $b;
}
//////////////////////////////////////////////////////////////////
/*
* @function encryptFile
* @param：sourcePath 文件所在目录的绝对路径
* @param: filename 被加密的文件名称
* @param: expandKeys 扩展后的密钥
* @param：destPath 存放加密后的文件绝对路径
* @param: encodeFile 加密后的文件名称
* @return: boolean
*/
public function encryptFile($sourcePath, $filename, $expandKeys, $destPath = "", $encodeFile = "")
{
$destPath = $sourcePath;
$encodeFile = "en".$filename;
}
}
?>

demo.php
<html>
<body>
<?php
require_once('./AES.php');
//$aes = new AES();
$aes = new AES(true);// 把加密后的字符串按十六进制进行存储
//$aes = new AES(true,true);// 带有调试信息且加密字符串按十六进制存储
$key = "this is a 32 byte key";// 密钥
$keys = $aes->makeKey($key);
$encode = "在";// 被加密的字符串
$ct = $aes->encryptString($encode, $keys);
echo "encode = ".$ct."<br>";
$cpt = $aes->decryptString($ct, $keys);
echo "decode = ".$cpt;
?>
</body>
</html>