using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Claims;
using System.Security.Principal;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace SecurityDemo
{
class Program
{
static void Main(string[] args)
{
Setup();
CheckCompatibility();
CheckNewClaimsUsage();
Console.ReadLine();
}

private static void Setup()
{
IList<Claim> claimCollection = new List<Claim>
{
new Claim(ClaimTypes.Name, "Andras")
, new Claim(ClaimTypes.Country, "Sweden")
, new Claim(ClaimTypes.Gender, "M")
, new Claim(ClaimTypes.Surname, "Nemes")
, new Claim(ClaimTypes.Email, "hello@me.com")
, new Claim(ClaimTypes.Role, "IT")
};

ClaimsIdentity claimsIdentity =new ClaimsIdentity(claimCollection, "My e-commerce website");

Console.WriteLine(claimsIdentity.IsAuthenticated);

ClaimsPrincipal principal = new ClaimsPrincipal(claimsIdentity);
Thread.CurrentPrincipal = principal;

}

private static void CheckCompatibility()
{
IPrincipal currentPrincipal = Thread.CurrentPrincipal;
Console.WriteLine(currentPrincipal.Identity.Name);
}

private static void CheckNewClaimsUsage()
{
ClaimsPrincipal currentClaimsPrincipal = ClaimsPrincipal.Current;//Thread.CurrentPrincipal as ClaimsPrincipal;
Claim nameClaim = currentClaimsPrincipal.FindFirst(ClaimTypes.Name);
Console.WriteLine(nameClaim.Value);
foreach (ClaimsIdentity ci in currentClaimsPrincipal.Identities)
{
Console.WriteLine(ci.Name);
}
}
}
}

Claims Identity