* </ul>
 * <p>
 * <strong>Usage Example:</strong>
 * </p>
 * <pre>
 * CachedCipher cipher = new CachedCipher();
 * cipher.setKey("mySecretKey");
 *
 * // Encrypt text
 * String encrypted = cipher.encryptText("Hello World");
 *
 * // Decrypt text
 * String decrypted = cipher.decryptText(encrypted);
 *
 * // For AES encryption

        if (StringUtil.isBlank(secretKey)) {
            throw new CrawlingAccessException(
                    "S3 secret key is blank. Please set the S3_SECRET_KEY environment variable or secretKey parameter.");
        }
        final String region = getInitParameter("region", "us-east-1", String.class);

        try {