ZguBb9A1

1package com.pg.bsk.encryption;
2
3import javax.crypto.Cipher;
4import javax.crypto.spec.IvParameterSpec;
5import javax.crypto.spec.SecretKeySpec;
6import java.util.Base64;
7
8/**
9 * @author ajarmolkowicz
10 * @date 3/17/20
11 * @project message-encryptor
12 */
13public abstract class AES {
14    public static byte[] encrypt(byte[] input, byte[] hashedKey, String blockCipherMode, IvParameterSpec iv) {
15        byte[] crypted;
16        try {
17            SecretKeySpec secretKey = new SecretKeySpec(hashedKey, "AES");
18            Cipher cipher = Cipher.getInstance(blockCipherMode);
19            if (blockCipherMode.equals(BlockCipherModes.ECB)) {
20                cipher.init(Cipher.ENCRYPT_MODE, secretKey);
21            } else {
22                cipher.init(Cipher.ENCRYPT_MODE, secretKey, iv);
23            }
24            crypted = cipher.doFinal(input);
25            return Base64.getEncoder().encode(crypted);
26        } catch (Exception e) {
27            System.out.println(e.toString());
28        }
29        return null;
30    }
31
32    public static byte[] decrypt(byte[] input, byte[] hashedKey, String blockCipherMode, IvParameterSpec iv) {
33        byte[] output;
34        try {
35            SecretKeySpec secretKey = new SecretKeySpec(hashedKey, "AES");
36            Cipher cipher = Cipher.getInstance(blockCipherMode);
37            if (blockCipherMode.equals(BlockCipherModes.ECB)) {
38                cipher.init(Cipher.DECRYPT_MODE, secretKey);
39            } else {
40                cipher.init(Cipher.DECRYPT_MODE, secretKey, iv);
41            }
42            output = cipher.doFinal(Base64.getDecoder().decode(input));
43            return output;
44        } catch (Exception e) {
45            System.out.println(e.toString());
46        }
47        return null;
48    }
49}