public async Task<IActionResult> Index() {

    var currentUser = await _currentUserRepository.GetCurrentUser();

    var pubbleSsoKey = "IW_ACADEMY_CONFERENCE2020!@#$$%!^!";

​

    if (currentUser != null) {

        var json = Newtonsoft.Json.JsonConvert.SerializeObject(new {

            userID = currentUser.Id,

            email = currentUser.Email,

            admin = currentUser.IsAdmin,

            name = $"{currentUser.FirstName} {currentUser.LastName}",

            avatar = "",

            userURL = "https://academy.infinetwireless.com/en/conference"

        });

​

        Int32 timestamp = (Int32)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds;

​

        var plainTextBytes = System.Text.Encoding.UTF8.GetBytes(json);

        var base64EncodedStr = System.Convert.ToBase64String(plainTextBytes);

        var signature = hash_hmac(base64EncodedStr + ' ' + timestamp, pubbleSsoKey);

​

        ViewBag.SsoMessage = base64EncodedStr + ' ' + signature + ' ' + timestamp;

    }

​

    return View();

}

​

public static string hash_hmac(string signatureString, string secretKey)

{

    HMACSHA1 hmac = new HMACSHA1(Encoding.UTF8.GetBytes(secretKey));

    byte[] buffer = Encoding.UTF8.GetBytes(signatureString);

    string result = BitConverter.ToString(hmac.ComputeHash(buffer)).Replace("-", "").ToLower();

​

    return result;

}