public async Task <IActionResult> CreateDigitalSignature([FromForm] string payload) { // var payload = "maj pejloud"; var certificate = CertificateUtilities.GetCertificateFromSmartCard(); if (certificate == null) { return(new BadRequestResult()); } (string token, string algorithm) = JWSUtilities.CreateSignature(certificate, payload); var response = new SignatureResponse(); response.Token = token; response.Certificate = Convert.ToBase64String(certificate.Export(System.Security.Cryptography.X509Certificates.X509ContentType.Cert)); response.Algorithm = algorithm; HttpContext.Response.Headers.Add("Access-Control-Allow-Origin", "https://localhost:37101"); HttpContext.Response.Headers.Add("Access-Control-Allow-Methods", "POST"); HttpContext.Response.Headers.Add("Access-Control-Allow-Headers", "Content-Type"); return(new ObjectResult(response)); }