public string GetAdditionalData(HttpContext context)
{
var newToken = TokenGenerator.GetRandomToken();
if (newToken.Contains(Separator))
{
newToken = newToken.Replace(Separator.ToString(), string.Empty); //to prevent collision
}
List <string> existingTokens = GetTokens(context);
if (existingTokens.Count == AmountOfSessionTokens)
{
existingTokens.RemoveAt(0);
}
existingTokens.Add(newToken);
SetTokens(context, existingTokens);
return(newToken);
}