private static UniversalCryptoTransform CreateTransformCore( CipherMode cipherMode, PaddingMode paddingMode, byte[] key, byte[]?iv, int blockSize, int paddingSize, int feedbackSize, bool encrypting) { SafeAlgorithmHandle algorithm = AesBCryptModes.GetSharedHandle(cipherMode, feedbackSize); BasicSymmetricCipher cipher = new BasicSymmetricCipherBCrypt(algorithm, cipherMode, blockSize, paddingSize, key, false, iv, encrypting); return(UniversalCryptoTransform.Create(paddingMode, cipher, encrypting)); }
private static UniversalCryptoTransform CreateTransformCore( CipherMode cipherMode, PaddingMode paddingMode, byte[] key, byte[]?iv, int blockSize, int feedbackSize, int paddingSize, bool encrypting) { using (SafeAlgorithmHandle algorithm = RC2BCryptModes.GetHandle(cipherMode, key.Length * 8)) { // The BasicSymmetricCipherBCrypt ctor will increase algorithm reference count and take ownership. BasicSymmetricCipher cipher = new BasicSymmetricCipherBCrypt(algorithm, cipherMode, blockSize, paddingSize, key, true, iv, encrypting); return(UniversalCryptoTransform.Create(paddingMode, cipher, encrypting)); } }
private UniversalCryptoTransform CreateEphemeralCryptoTransformCore(byte[] key, byte[]?iv, bool encrypting, PaddingMode padding, CipherMode mode, int feedbackSizeInBits) { int blockSizeInBytes = AsymmetricAlgorithmHelpers.BitsToBytes(_outer.BlockSize); SafeAlgorithmHandle algorithmModeHandle = _outer.GetEphemeralModeHandle(mode, feedbackSizeInBits); BasicSymmetricCipher cipher = new BasicSymmetricCipherBCrypt( algorithmModeHandle, mode, blockSizeInBytes, _outer.GetPaddingSize(mode, feedbackSizeInBits), key, ownsParentHandle: false, iv, encrypting); return(UniversalCryptoTransform.Create(padding, cipher, encrypting)); }