Encrypt and decrypt string or bytes using AES algorithm performed by Java code. below is the code snippet.
package com.pkm; import java.security.Key; import java.security.SecureRandom; import javax.crypto.Cipher; import javax.crypto.spec.SecretKeySpec; import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; public class EncryptUtils { private static String algorithm = "AES"; private static byte[] keyValue = "1111111111111111".getBytes(); private static SecureRandom iv = new SecureRandom("192837465UTYELBN".getBytes()); public static void main(String[] args) throws Exception { String valueToEncrypt = "Some value"; String encryptedValue = encrypt(valueToEncrypt); System.out.println("Encrypted=" + encryptedValue); String afterDecrypt = decrypt(encryptedValue); System.out.println("Decrypted=" + afterDecrypt); } static String encrypt(String value) throws Exception { Key key = generateKey(); Cipher cipher = Cipher.getInstance(algorithm); cipher.init(Cipher.ENCRYPT_MODE, key, iv); byte [] encByte = cipher.doFinal(value.getBytes()); String encString = new BASE64Encoder().encode(encByte); return encString; } static String decrypt(String value) throws Exception { Key key = generateKey(); Cipher cipher = Cipher.getInstance(algorithm); cipher.init(Cipher.DECRYPT_MODE, key); byte [] decByte64 = new BASE64Decoder().decodeBuffer(value); byte [] decByte = cipher.doFinal(decByte64); String decString = new String(decByte); return decString; } static private Key generateKey() throws Exception { return new SecretKeySpec(keyValue, algorithm); } }
Below is output:
Original=Some value
Encrypted=i4he5mR49eRkWmQRVh12yg==Decrypted=Some value
