1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
<?php
require_once dirname(__FILE__).'/../../secure/Crypt/TripleDES.php';
/**
*
* @author kblee
*
*/
class BlockEncrypt{
/**
* singleton instance.
*/
private static $instance;
/**
* encrypt/decrypt key
*/
private $keyData;
/**
* Create a single BlockEncrypt class.
*/
private function BlockEncrypt(){
$this->initailizePrivateKey();
}
/**
* Configure encrypt key from key file.
*/
private function initailizePrivateKey(){
$filePath = dirname(__FILE__).'/nicepay.key';
$fp = fopen($filePath,'r');
$this->keyData = fread($fp,24);
fclose($fp);
}
/**
* Get a BlockEncrypt instance.
*/
public static function getInstance(){
if(!isset(BlockEncrypt::$instance)){
BlockEncrypt::$instance = new BlockEncrypt();
}
return BlockEncrypt::$instance;
}
/**
* encrypt plainText with configured key.
*/
public function encrypt($plainText){
$aes = new Crypt_TripleDES(CRYPT_DES_MODE_ECB);
$aes->setKey($this->keyData);
return $aes->encrypt($plainText);
}
/**
* decrypt cipherText with configured key.
*/
public function decrypt($cipher){
$aes = new Crypt_AES(CRYPT_AES_MODE_ECB);
$aes->setKey($this->keyData);
return $aes->decrypt($cipher);
}
}
?>
|