public static string GenerateToken()
{
var time = BitConverter.GetBytes(DateTime.UtcNow.ToBinary());
var key = Guid.NewGuid().ToByteArray();
var token = Convert.ToBase64String(time.Concat(key).ToArray());
token = CipherLogic.Cipher(CipherBCAction.Encrypt, CipherBCType.Token, token);
return(token);
}
//expiration time = 6 months
public static bool ValidateToken(string token, int maxValidHours = 365 * 4320)
{
try
{
token = CipherLogic.Cipher(CipherBCAction.Decrypt, CipherBCType.Token, token);
var data = Convert.FromBase64String(token);
var createdAt = DateTime.FromBinary(BitConverter.ToInt64(data, 0));
return(createdAt > DateTime.UtcNow.AddHours(maxValidHours * -1));
}
catch
{
return(false);
}
}