/// <summary>
/// Set the registry key which shows Daytimer as fully activated.
/// </summary>
public static void Activate()
{
string data = "A" + RandomFunctions.GetBIOSSerialNumber();
byte[] k = SecurityKeys.GenerateKey(data);
byte[] iv = SecurityKeys.GenerateIV(data);
Hash = Encryption.EncryptStringToBytes(Key, k, iv);
}
private static bool isActivated(bool allowGracePeriod)
{
string key = Key;
if (!IsKeyValid(key))
{
return(false);
}
if (allowGracePeriod)
{
if (IsWithinActivationGracePeriod())
{
return(true);
}
}
string data = "A" + RandomFunctions.GetBIOSSerialNumber();
byte[] k = SecurityKeys.GenerateKey(data);
byte[] iv = SecurityKeys.GenerateIV(data);
byte[] encryptedKey = Hash;
if (encryptedKey == null)
{
return(false);
}
string decryptedKey = Encryption.DecryptStringFromBytes(encryptedKey, k, iv);
if (decryptedKey == key)
{
return(true);
}
return(false);
}
