c4j22WSK

1/***********/
2/**JAVA**/
3
4        import java.security.NoSuchAlgorithmException;
5
6        import javax.crypto.Cipher;
7        import javax.crypto.NoSuchPaddingException;
8        import javax.crypto.spec.IvParameterSpec;
9        import javax.crypto.spec.SecretKeySpec;
10
11        public class MCrypt {
12
13                private String iv = "fedcba9876543210";//Dummy iv (CHANGE IT!)
14                private IvParameterSpec ivspec;
15                private SecretKeySpec keyspec;
16                private Cipher cipher;
17                
18                private String SecretKey = "0123456789abcdef";//Dummy secretKey (CHANGE IT!)
19                
20                public MCrypt()
21                {
22                        ivspec = new IvParameterSpec(iv.getBytes());
23
24                        keyspec = new SecretKeySpec(SecretKey.getBytes(), "AES");
25                        
26                        try {
27                                cipher = Cipher.getInstance("AES/CBC/NoPadding");
28                        } catch (NoSuchAlgorithmException e) {
29                                // TODO Auto-generated catch block
30                                e.printStackTrace();
31                        } catch (NoSuchPaddingException e) {
32                                // TODO Auto-generated catch block
33                                e.printStackTrace();
34                        }
35                }
36                
37                public byte[] encrypt(String text) throws Exception
38                {
39                        if(text == null || text.length() == 0)
40                                throw new Exception("Empty string");
41                        
42                        byte[] encrypted = null;
43
44                        try {
45                                cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec);
46
47                                encrypted = cipher.doFinal(padString(text).getBytes());
48                        } catch (Exception e)
49                        {                       
50                                throw new Exception("[encrypt] " + e.getMessage());
51                        }
52                        
53                        return encrypted;
54                }
55                
56                public byte[] decrypt(String code) throws Exception
57                {
58                        if(code == null || code.length() == 0)
59                                throw new Exception("Empty string");
60                        
61                        byte[] decrypted = null;
62
63                        try {
64                                cipher.init(Cipher.DECRYPT_MODE, keyspec, ivspec);
65                                
66                                decrypted = cipher.doFinal(hexToBytes(code));
67                        } catch (Exception e)
68                        {
69                                throw new Exception("[decrypt] " + e.getMessage());
70                        }
71                        return decrypted;
72                }
73                
74
75                
76                public static String bytesToHex(byte[] data)
77                {
78                        if (data==null)
79                        {
80                                return null;
81                        }
82                        
83                        int len = data.length;
84                        String str = "";
85                        for (int i=0; i<len; i++) {
86                                if ((data[i]&0xFF)<16)
87                                        str = str + "0" + java.lang.Integer.toHexString(data[i]&0xFF);
88                                else
89                                        str = str + java.lang.Integer.toHexString(data[i]&0xFF);
90                        }
91                        return str;
92                }
93                
94                        
95                public static byte[] hexToBytes(String str) {
96                        if (str==null) {
97                                return null;
98                        } else if (str.length() < 2) {
99                                return null;
100                        } else {
101                                int len = str.length() / 2;
102                                byte[] buffer = new byte[len];
103                                for (int i=0; i<len; i++) {
104                                        buffer[i] = (byte) Integer.parseInt(str.substring(i*2,i*2+2),16);
105                                }
106                                return buffer;
107                        }
108                }
109                
110                
111
112                private static String padString(String source)
113                {
114                  char paddingChar = ' ';
115                  int size = 16;
116                  int x = source.length() % size;
117                  int padLength = size - x;
118
119                  for (int i = 0; i < padLength; i++)
120                  {
121                          source += paddingChar;
122                  }
123
124                  return source;
125                }
126        }
127
128
129
130====================================================
131
132/**********/
133/**PHP**/
134
135        <?php 
136
137        class MCrypt
138        {
139                private $iv = 'fedcba9876543210'; #Same as in JAVA
140                private $key = '0123456789abcdef'; #Same as in JAVA
141
142
143                function __construct()
144                {
145                }
146
147                function encrypt($str) {
148
149                  //$key = $this->hex2bin($key);    
150                  $iv = $this->iv;
151
152                  $td = mcrypt_module_open('rijndael-128', '', 'cbc', $iv);
153
154                  mcrypt_generic_init($td, $this->key, $iv);
155                  $encrypted = mcrypt_generic($td, $str);
156
157                  mcrypt_generic_deinit($td);
158                  mcrypt_module_close($td);
159
160                  return bin2hex($encrypted);
161                }
162
163                function decrypt($code) {
164                  //$key = $this->hex2bin($key);
165                  $code = $this->hex2bin($code);
166                  $iv = $this->iv;
167
168                  $td = mcrypt_module_open('rijndael-128', '', 'cbc', $iv);
169
170                  mcrypt_generic_init($td, $this->key, $iv);
171                  $decrypted = mdecrypt_generic($td, $code);
172
173                  mcrypt_generic_deinit($td);
174                  mcrypt_module_close($td);
175
176                  return utf8_encode(trim($decrypted));
177                }
178
179                protected function hex2bin($hexdata) {
180                  $bindata = '';
181
182                  for ($i = 0; $i < strlen($hexdata); $i += 2) {
183                        $bindata .= chr(hexdec(substr($hexdata, $i, 2)));
184                  }
185
186                  return $bindata;
187                }
188
189        }