docs: public static byte[] hmacSha1(byte[] input, byte[] key) {
  		try {
  			SecretKey secretKey = new SecretKeySpec(key, HMACSHA1_ALG);
  			Mac mac = Mac.getInstance(HMACSHA1_ALG);
  			mac.init(secretKey);
  			return mac.doFinal(input);
  		} catch (GeneralSecurityException e) {
  			throw ExceptionUtil.unchecked(e);
  		}
  	}