2P3emyC5

1Java AES CBC Decryption
2$privateKey = "1234567812345678";
3$iv = "1234567812345678";
4$data = "Test string";
5
6$encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $privateKey, $data, MCRYPT_MODE_CBC, $iv);
7
8echo(base64_encode($encrypted));
9
10Result: iz1qFlQJfs6Ycp+gcc2z4w==
11	
12public static String decrypt() throws Exception{
13    try{
14        String Base64EncodedText = "iz1qFlQJfs6Ycp+gcc2z4w==";
15        String decodedText = com.sun.xml.internal.messaging.saaj.util.Base64.base64Decode(Base64EncodedText);
16        String key = "1234567812345678";
17        String iv = "1234567812345678";
18
19        javax.crypto.spec.SecretKeySpec keyspec = new javax.crypto.spec.SecretKeySpec(key.getBytes(), "AES");
20        javax.crypto.spec.IvParameterSpec ivspec = new javax.crypto.spec.IvParameterSpec(iv.getBytes());
21
22        javax.crypto.Cipher cipher = javax.crypto.Cipher.getInstance("AES/CBC/NoPadding");
23        cipher.init(javax.crypto.Cipher.DECRYPT_MODE, keyspec, ivspec);
24        byte[] decrypted = cipher.doFinal(decodedText.getBytes());
25
26        String str = new String(decrypted);
27
28        return str;
29
30    }catch(Exception e){
31        return null;
32    }   
33}
34	
35String decodedText = com.sun.xml.internal.messaging.saaj.util.Base64.base64Decode(Base64EncodedText);
36	
37import java.nio.charset.Charset;
38
39import javax.crypto.Cipher;
40import javax.crypto.SecretKey;
41import javax.crypto.spec.IvParameterSpec;
42import javax.crypto.spec.SecretKeySpec;
43
44import org.apache.commons.codec.binary.Base64;
45import org.apache.commons.codec.binary.Hex;
46
47public class AESToy3 {
48
49    private static final Charset ASCII = Charset.forName("US-ASCII");
50
51    public static void main(String[] args) throws Exception {
52        String base64Cipher = "iz1qFlQJfs6Ycp+gcc2z4w==";
53        byte [] cipherBytes = Base64.decodeBase64(base64Cipher);
54        byte [] iv = "1234567812345678".getBytes(ASCII);
55        byte [] keyBytes = iv.clone();
56
57        SecretKey aesKey = new SecretKeySpec(keyBytes, "AES");
58
59        Cipher cipher = Cipher.getInstance("AES/CBC/NOPADDING");
60        cipher.init(Cipher.DECRYPT_MODE, aesKey, new IvParameterSpec(iv));
61
62        byte[] result = cipher.doFinal(cipherBytes);
63        System.out.println(Hex.encodeHexString(result));
64    }
65
66}
67	
685465737420737472696e670000000000