“enkripsi” Kode Jawaban

enkripsi

class EncryptDecrypt {

    static String encrypt(String value) {
        try {
            IvParameterSpec iv = new IvParameterSpec(Constants.Encryption.INIT_VECTOR.getBytes(StandardCharsets.UTF_8));
            SecretKeySpec skeySpec = new
                    SecretKeySpec("PRIVATE_KEY_FOR_ENCRYPTION_OR_DECRYPTION"
                    .getBytes(StandardCharsets.UTF_8), "AES");

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

            byte[] encrypted = cipher.doFinal(value.getBytes());
            byte[] original = Base64.getEncoder().encode(encrypted);
            return new String(original);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return null;
    }

    static String decrypt(String encrypted) {
        try {
            IvParameterSpec iv = new IvParameterSpec(Constants.Encryption.INIT_VECTOR
                    .getBytes(StandardCharsets.UTF_8));
            SecretKeySpec skeySpec = new SecretKeySpec("PRIVATE_KEY_FOR_ENCRYPTION_OR_DECRYPTION".
                    getBytes(StandardCharsets.UTF_8), "AES");

            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
            cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
            byte[] original = cipher.doFinal(Base64.getDecoder().decode(encrypted));
            return new String(original);
        } catch (Exception ex) {
            ex.printStackTrace();
        }

        return null;
    }