protected sealed override void Dispose(bool disposing)
{
if (disposing)
{
_cipher?.Dispose();
_cipher = null !;
}
base.Dispose(disposing);
}
//
// The first parameter is a delegate that instantiates a CngKey rather than a CngKey itself. That's because CngKeys are stateful objects
// and concurrent encryptions on the same CngKey will corrupt each other.
//
// The delegate must instantiate a new CngKey, based on a new underlying NCryptKeyHandle, each time is called.
//
public BasicSymmetricCipherNCrypt(Func <CngKey> cngKeyFactory, CipherMode cipherMode, int blockSizeInBytes, byte[]?iv, bool encrypting, int paddingSizeInBytes)
: base(iv, blockSizeInBytes, paddingSizeInBytes)
{
_cipher = new BasicSymmetricCipherLiteNCrypt(cngKeyFactory, cipherMode, blockSizeInBytes, iv, encrypting, paddingSizeInBytes);
}