Java Security

I posted similar question yesterday. but another problem occurred.

PHP code, encrypt MCRYPT_RIJNDAEL_256

<?PHP
define('CIPHER_KEY', '3b4b9507e624be58dec7a465d8ed8c37'); //32byte
//define('CIPHER_KEY', '1111111111111111');
define('IV', '2222222222222222');


echo "<xmp>";
$a= getEncrypt("test");
echo "\n";
echo $a;
echo "\n";
echo getDecrypt($a);


function getEncrypt($sStr, $sKey=CIPHER_KEY, $sIV=IV )
{
	$sCipher = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $sKey, $sStr, MCRYPT_MODE_CFB, $sIV);
	return bin2hex($sCipher);
}

function getDecrypt($sStr, $sKey=CIPHER_KEY, $sIV=IV )
{
	$sDecipher = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $sKey, pack('H*', $sStr), MCRYPT_MODE_CFB, $sIV);

	return $sDecipher;
}
?>

and decrypt in java.

import java.math.BigInteger;

import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;


public class AesTest {
	public static void main(String[] args) throws Exception{
		String orignal = "test";
		String cookie = "8ff50f19";
		String keyString = "3b4b9507e624be58dec7a465d8ed8c37";		
		String initialVectorParam = "2222222222222222";

		SecretKeySpec key = new SecretKeySpec(keyString.getBytes(), "AES");
		IvParameterSpec initalVector = new IvParameterSpec(initialVectorParam.getBytes());
		
		Cipher cipher = Cipher.getInstance("AES/CFB8/NoPadding");
		
		/*
		SecretKey aesKey;
		KeyGenerator keyGen = KeyGenerator.getInstance("AES");
        keyGen.init(256);
        aesKey = keyGen.generateKey(); 
        System.out.println("aesKey:"+bytes2Hex(aesKey.getEncoded()));
        System.out.println(aesKey.getFormat());
		


		/////////////// encrypt /////////////////
		cipher.init(Cipher.ENCRYPT_MODE, key, initalVector);
		byte[] test = cipher.doFinal(orignal.getBytes());
		System.out.println(bytes2Hex(test));
		*/

		/////////////// decrypt /////////////////
		cipher.init(Cipher.DECRYPT_MODE, key, initalVector);
		byte[] encrypted = hex2byte(cookie);
		byte[] decryptedValue = cipher.doFinal(encrypted);

		System.out.println(new String(decryptedValue));
	}

	
	
	
	private static byte[] hex2byte(String s){
		if(s == null) return null;
		int l = s.length();
		if(l%2 == 1) return null;
		byte[] b = new byte[l/2];
		for(int i = 0 ; i < l/2 ;i++) {
			b[i] = (byte)Integer.parseInt(s.substring(i*2,i*2+2),16);
		}
		return b;
	}

	private static String byte2Hex(byte b) {
		String[] HEX_DIGITS = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f"};    	
		int nb = b & 0xFF;
		int i_1 = (nb >> 4) & 0xF;
		int i_2 = nb & 0xF;
		return HEX_DIGITS[i_1] + HEX_DIGITS[i_2];
	}

	private static String bytes2Hex(byte[] b) {
		StringBuffer sb = new StringBuffer(b.length * 2);
		for (int x = 0; x < b.length; x++) {
			sb.append(byte2Hex(b[x]));
		}
		return sb.toString();
	}	
}

I aleady overwrite "local_policy.jar" and "US_export_policy.jar" and no more key length exception.

expected output is "test"
but "B?J" printed.

and initial vector set to 32byte (ex:22222222222222222222222222222222)
"java.security.InvalidAlgorithmParameterException: Wrong IV length: must be 16 bytes long" exception occured.

please resolve this problem.

I am sorry that I can't speak English well.

thank you.