public static string GetLoginToken(int loginId, DateTime expirationDate, bool oneTimeUse = true)
{
byte[] expirationBytes = BitConverter.GetBytes(expirationDate.Ticks);
byte[] loginIdBytes = BitConverter.GetBytes(loginId);
var randomBytes = GetRandomBytes();
byte[] oneTimeUseBytes = BitConverter.GetBytes(oneTimeUse);
byte[] allTheBytes = new byte[loginIdBytes.Length + expirationBytes.Length + randomBytes.Length + sizeof(bool)];
Buffer.BlockCopy(loginIdBytes, 0, allTheBytes, 0, loginIdBytes.Length);
Buffer.BlockCopy(expirationBytes, 0, allTheBytes, loginIdBytes.Length, expirationBytes.Length);
Buffer.BlockCopy(randomBytes, 0, allTheBytes, loginIdBytes.Length + expirationBytes.Length, randomBytes.Length);
Buffer.BlockCopy(oneTimeUseBytes, 0, allTheBytes, loginIdBytes.Length + expirationBytes.Length + randomBytes.Length, oneTimeUseBytes.Length);
byte[] encryptedBytes = BasicEncryption.EncryptBytesToBytes_Aes(allTheBytes);
string encryptedData = BasicEncryption.Base64EncodeUrlSafe(encryptedBytes);
return(encryptedData);
}
public static TokenModel ParseToken(string token)
{
try
{
var encryptedBytes = BasicEncryption.Base64DecodeUrlSafe(token);
var decryptedBytes = BasicEncryption.DecryptBytesFromBytes_Aes(encryptedBytes);
int loginId = BitConverter.ToInt32(decryptedBytes, 0);
long ticks = BitConverter.ToInt64(decryptedBytes, sizeof(int));
bool oneTimeUse = BitConverter.ToBoolean(decryptedBytes, sizeof(int) + sizeof(long) + 16);
return(new TokenModel
{
ObjectId = loginId,
Ticks = ticks,
IsOneTimeUse = oneTimeUse
});
}
catch (Exception)
{
return(null);
}
}
