/// <summary>
/// Decrypts the secret and fills into this secret exchange instance.
/// </summary>
/// <param name="secretEncrypted">The new secret encrypted.</param>
/// <param name="ignoreFormatIfNoCrypto">true if ignore format when no crypto set; otherwise, false.</param>
/// <param name="padding">The optional padding mode for decryption.</param>
public void DecryptSecret(string secretEncrypted, bool ignoreFormatIfNoCrypto, RSAEncryptionPadding padding = null)
{
if (Secret != null)
{
Secret.Dispose();
}
if (string.IsNullOrWhiteSpace(secretEncrypted))
{
Secret = null;
return;
}
var rsa = crypto;
if (rsa == null)
{
if (!ignoreFormatIfNoCrypto && SecretFormatBeforeDecrypt != null)
{
secretEncrypted = SecretFormatBeforeDecrypt(secretEncrypted, false);
}
Secret = secretEncrypted.ToSecure();
return;
}
var plain = rsa.Decrypt(Convert.FromBase64String(secretEncrypted), padding ?? RSAEncryptionPadding.Pkcs1);
Secret = SecretFormatBeforeDecrypt != null?SecretFormatBeforeDecrypt(Encoding.UTF8.GetString(plain), true).ToSecure() : Encoding.UTF8.GetString(plain).ToSecure();
}
public void Hide()
{
try
{
if (IsShown)
{
IsShown = false;
if (CurrentPattern != null)
{
CurrentPattern.Dispose();
CurrentPattern = null;
}
if (Secret != null)
{
Secret.Dispose();
Secret = null;
}
if (CurrentBrush != null)
{
CurrentBrush.Dispose();
CurrentBrush = null;
}
Layers.Unloaded();
Tools.Unloaded();
}
}
catch (System.Exception e) { Logger.Log(Logger.Level.ERROR, "[PatternEditor] Error while hiding: " + e.ToString()); }
}
/// <summary>
/// Sets a new secret.
/// </summary>
/// <param name="secret">The new secret to set.</param>
public void SetSecret(SecureString secret)
{
if (Secret != null)
{
Secret.Dispose();
}
Secret = secret?.Copy();
}
/// <summary>
/// Clears the secret.
/// </summary>
public void ClearSecret()
{
if (Secret != null)
{
Secret.Dispose();
}
Secret = null;
}
public void SecretIndicatesObjectIsDisposedWhenDisposed()
{
var secret = new Secret(new byte[] { });
secret.IsDisposed.Should().BeFalse();
secret.Dispose();
secret.IsDisposed.Should().BeTrue();
}
public void SecretThrowsObjectDisposedExceptionWhenAlreadyDisposed()
{
var secret = new Secret(new byte[] { });
secret.Dispose();
Action test = () => secret.UseAsBytes(b => { });
test.ShouldThrow <ObjectDisposedException>();
}
/// <summary>
/// Sets a new secret.
/// </summary>
/// <param name="secret">The new secret to set.</param>
public void SetSecret(string secret)
{
if (Secret != null)
{
Secret.Dispose();
}
if (string.IsNullOrWhiteSpace(secret))
{
Secret = null;
return;
}
Secret = secret.ToSecure();
}
/// <summary>
/// Releases the unmanaged resources used by this instance and optionally releases the managed resources.
/// </summary>
/// <param name="disposing">true to release both managed and unmanaged resources; false to release only unmanaged resources.</param>
protected virtual void Dispose(bool disposing)
{
if (!disposing)
{
return;
}
if (crypto != null && needDisposeCrypto)
{
crypto.Dispose();
}
if (Secret != null)
{
Secret.Dispose();
}
crypto = null;
}
/// <summary>
/// Dispose
/// </summary>
public void Dispose()
{
Key?.Dispose();
Secret?.Dispose();
PrivateKey?.Dispose();
}
public void Dispose()
{
_keyDerivationKey.Dispose();
}