Crypto

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

import org.apache.commons.codec.binary.Base64;

public class Crypto {
public static String encrypt(String key, String initVector, String value) {
try {
IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");

Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);

byte[] encrypted = cipher.doFinal(value.getBytes());
System.out.println("encrypted string: "
+ Base64.encodeBase64String(encrypted));

return Base64.encodeBase64String(encrypted);
} catch (Exception ex) {
ex.printStackTrace();
}

return null;
}

public static String decrypt(String key, String initVector, String encrypted) {
try {
IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");

Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);

byte[] original = cipher.doFinal(Base64.decodeBase64(encrypted));

return new String(original);
} catch (Exception ex) {
ex.printStackTrace();
}

return null;
}

public static void main(String[] args) {
String key = "ABCDefghIJKLmnop";
String initVector = "ABCDefghIJKLmnop";

//System.out.println(decrypt(key, initVector, "5pBw80VKCfWp3ltl6pTOeA=="));
}
}