How to use

CryptoUtil

in

org.jboss.aerogear.simplepush.util

public static String endpointToken(final String uaid, final String channelId, final byte[] key) {
  try {
    final String path = uaid + "." + channelId;
    return encrypt(key, path);
  } catch (final Exception e) {
    throw new RuntimeException(e);
  }
}

private String generateEndpointToken(final String uaid, final String channelId) {
  return CryptoUtil.endpointToken(uaid, channelId, privateKey);
}

/**
 * Decrypts the content passed-in.
 *
 * @param key the key used for the underlying cypher.
 * @param content the content to decrypted.
 * @return {@code String} the descrypted content as a String.
 * @throws InvalidKeyException
 *
 * @throws Exception
 */
public static String decrypt(final byte[] key, final String content) throws Exception {
  final byte[] decodedContent = new UrlBase64().decode(URLDecoder.decode(content, ASCII.displayName()));
  final byte[] iv = extractIV(decodedContent);
  final byte[] decrypted = new CryptoBox(key).decrypt(iv, extractContent(decodedContent));
  return new String(decrypted, ASCII);
}

public static byte[] generateAndStorePrivateKey(final DataStore store, final SimplePushServerConfig config) {
  byte[] keySalt = store.getPrivateKeySalt();
  if (keySalt.length == 0) {
    keySalt = RandomUtils.randomBytes();
    store.savePrivateKeySalt(keySalt);
  }
  return CryptoUtil.secretKey(config.password(), keySalt);
}

/**
 * Encrypts the content passed-in.
 *
 * @param key the key used for the underlying cypher.
 * @param content the content to encrypted
 * @return {@code String} the encoded content as base64 url safe encoded string.
 *
 * @throws Exception
 */
public static String encrypt(final byte[] key, final String content) throws Exception {
  final byte[] iv = BlockCipher.getIV();
  final byte[] encrypted = new CryptoBox(key).encrypt(iv, content.getBytes(ASCII));
  final String base64 = new UrlBase64().encode(prependIV(encrypted, iv));
  return URLEncoder.encode(base64, ASCII.displayName());
}

public static byte[] generateAndStorePrivateKey(final DataStore store, final SimplePushServerConfig config) {
  byte[] keySalt = store.getPrivateKeySalt();
  if (keySalt.length == 0) {
    keySalt = RandomUtils.randomBytes();
    store.savePrivateKeySalt(keySalt);
  }
  return CryptoUtil.secretKey(config.password(), keySalt);
}

private String generateEndpointToken(final String uaid, final String channelId) {
  return CryptoUtil.endpointToken(uaid, channelId, privateKey);
}