package com.core.utils;

import javax.crypto.Cipher;

import javax.crypto.spec.SecretKeySpec;

import java.util.Base64;

/**

* @author ManhKM on 6/20/2022

* @project Java-Utils

*/

public class AESUtil {

public static String encrypt(String plainText, String key) {

try {

Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");

byte[] decodeKey = Base64.getDecoder().decode(key);

SecretKeySpec secretKey = new SecretKeySpec(decodeKey, "AES");

cipher.init(Cipher.ENCRYPT_MODE, secretKey);

byte[] cipherText = cipher.doFinal(plainText.getBytes("UTF8"));

String encryptedString = new String(Base64.getEncoder().encode(cipherText), "UTF-8");

return encryptedString;

} catch (Exception e) {

e.printStackTrace();

}

return null;

}

public static String decrypt(String encryptedText, String key) {

try {

Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5PADDING");

byte[] decodeKey = Base64.getDecoder().decode(key);

SecretKeySpec secretKey = new SecretKeySpec(decodeKey, "AES");

cipher.init(Cipher.DECRYPT_MODE, secretKey);

byte[] cipherText = Base64.getDecoder().decode(encryptedText.getBytes("UTF8"));

String decryptedString = new String(cipher.doFinal(cipherText), "UTF-8");

return decryptedString;

} catch (Exception e) {

e.printStackTrace();

}

return null;

}

public static void main(String[] args) {

String key = "manhkm1233232323232323";

System.out.println(encrypt("3004199632323232323232", key));

System.out.println(decrypt("D5WwBEWjF+vEM7pdaEaxIo+h71x0PIh5I0unrCv+rnc=", key));

}

}