Method calculateHmacSHA1

Source/Example/HowToUse_Dll.java:263–279

Computes HMAC signature. @param data The data to be signed. @param secretKey The signing secret key. @return The Base64-encoded HMAC signature. @throws java.security.SignatureException when signature generation fails

(String data, String secretKey)

* @throws java.security.SignatureException when signature generation fails
*/
private static String calculateHmacSHA1(String data, String secretKey)
throws java.security.SignatureException
{
    String Result;

    try
    {
        Mac mac = Mac.getInstance("HmacSHA1"); // Create an HMAC instance
        mac.init(new SecretKeySpec(secretKey.getBytes(), "HmacSHA1")); // Initialize the HMAC instance with the secret key
        Result = Base64.getEncoder().encodeToString(mac.doFinal(data.getBytes()));
    }
    catch (Exception e)
    {
        throw new SignatureException(e.getMessage());
    }
    return Result;
}

}