CWE-329.java

import java.security.SecureRandom;
import java.security.NoSuchAlgorithmException;
import java.security.InvalidKeyException;
import java.security.InvalidAlgorithmParameterException;
import javax.crypto.Cipher;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import javax.crypto.BadPaddingException;
import javax.crypto.IllegalBlockSizeException;

public class SymmetricCipherTest {
    public static void main() {
        byte[] text ="Secret".getBytes();
        SecureRandom sr = new SecureRandom();
        byte[] iv = new byte[8];
        sr.nextBytes(iv);
        KeyGenerator kg = KeyGenerator.getInstance("DES");
        kg.init(56);
        SecretKey key = kg.generateKey();
        Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
        IvParameterSpec ips = new IvParameterSpec(iv);
        cipher.init(Cipher.ENCRYPT_MODE, key, ips);
        return cipher.doFinal(inpBytes);
    }
}