two1stnamz

public class AESCryptoUtil {

    private static final String KEY_SPEC_AES = "AES";
    public static final String CHARSET_NAME = "UTF-8";
    public static final String SHA_1 = "SHA-1";
    private static final String CIPHER = "AES/CBC/PKCS5Padding";

    public byte[] encrypt(final byte[] data, final String keyString) throws Exception {
        return encrypt(data, keyString.getBytes(CHARSET_NAME));
    }

two1stnamz

                // Decrypt the decryption key
                final SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddhhmmss");
                sdf.setTimeZone(TimeZone.getTimeZone("utc"));

                final String rawDecryptor =
                        sdf.format(content.getDue())  + service.getPatron().getId().toString()
                                + content.getCircId().toString();
                final byte[] decryptor = aesCryptoUtil.createHash(rawDecryptor.getBytes());
                final byte[] decryptionKey =
                        aesCryptoUtil.decrypt(