public EncodedParameters Verify(string token)
{
if (token == null)
{
throw new ArgumentNullException("token");
}
try
{
var headers = JWT.Headers(token);
if (headers == null || !headers.ContainsKey(HttpSigningConstants.Jwk.AlgorithmProperty))
{
Logger.Error("Token does not contain " + HttpSigningConstants.Jwk.AlgorithmProperty + " property in header");
return(null);
}
var alg = headers[HttpSigningConstants.Jwk.AlgorithmProperty];
if (!Alg.Equals(alg))
{
Logger.Error("Signature alg does not match token alg");
return(null);
}
var json = JWT.Decode(token, _key);
if (json == null)
{
Logger.Error("Failed to decode token");
return(null);
}
return(EncodedParameters.FromJson(json));
}
catch (Exception ex)
{
Logger.ErrorException("Failed to decode token", ex);
}
return(null);
}
