public static string DeTokenize(string token, int maxDays = 14)
{
var decoded = Base64StringDecode(token).Split('|');
long ticks;
if (!long.TryParse(decoded[0], out ticks))
{
return(null);
}
if (Math.Abs((DateTime.UtcNow - new DateTime(ticks)).TotalDays) > maxDays)
{
throw new TokenExpiredException();
}
return(Aes256Encryption.DecryptString(decoded[1], CreateKey(decoded[0])));
}
public static string Tokenize(string args)
{
var ticks = DateTime.UtcNow.Ticks.ToString();
return(Base64StringEncode(ticks + "|" + Aes256Encryption.Encrypt(args, CreateKey(ticks))));
}
private static byte[] CreateKey(string t)
{
var seed = int.Parse(MaxLength(t, 9));
return(Aes256Encryption.CreateKey(seed));
}