AppHarbor.Web.Security.CookieAuthenticator.GetTagData C# (CSharp) Method

	    public byte[] GetTagData()
	    {
            var cookie = _context.Request.Cookies[_configuration.CookieName];
            if (cookie != null)
            {
                using(var protector = new CookieProtector(_configuration))
                {
                    byte[] data;
                    protector.Validate(cookie.Value, out data);
                    var authenticationCookie = AuthenticationCookie.Deserialize(data);
                    return authenticationCookie.Tag;
                }
            }

	        return null;
	    }