protected virtual async Task <IEnumerable <Claim> > GetClaimsForAuthenticateResult(TUser user)
{
List <Claim> claims = new List <Claim>();
if (EnableSecurityStamp && userManager.SupportsUserSecurityStamp)
{
var stamp = await userManager.GetSecurityStampAsync(user.Id);
if (!String.IsNullOrWhiteSpace(stamp))
{
claims.Add(new Claim("security_stamp", stamp));
}
}
return(claims);
}