Jwt Token Validator with all default properties.

JwtValidator.cs

using Microsoft.IdentityModel.Protocols;
using Microsoft.IdentityModel.Protocols.OpenIdConnect;
using Microsoft.IdentityModel.Tokens;
using System;
using System.IdentityModel.Tokens.Jwt;
using System.Threading;

namespace JwtValidator
{
    class Program
    {
        const string auth0Domain = "https://xxxxxxxxxxxx.azurewebsites.net/"; // Your Auth0 domain
        const string auth0Audience = "https://rs256.test.api"; // Your API Identifier
        static void Main(string[] args)
        {
            IConfigurationManager<OpenIdConnectConfiguration> configurationManager = new ConfigurationManager<OpenIdConnectConfiguration>($"{auth0Domain}.well-known/openid-configuration", new OpenIdConnectConfigurationRetriever());
            OpenIdConnectConfiguration openIdConfig = configurationManager.GetConfigurationAsync(CancellationToken.None).Result;

            var validationParameters = new TokenValidationParameters {
                ValidIssuer = auth0Domain,
                ValidAudiences = new[] { auth0Audience },
                IssuerSigningKeys = openIdConfig.SigningKeys
            };

            SecurityToken validatedToken;
            JwtSecurityTokenHandler handler = new JwtSecurityTokenHandler();
            var user = handler.ValidateToken("eyJhbGciO", validationParameters, out validatedToken);
        }
    }
}