private static ICryptoTransform CreateTransformCore(
CipherMode cipherMode,
PaddingMode paddingMode,
byte[] key,
byte[] iv,
int blockSize,
bool encrypting)
{
SafeAlgorithmHandle algorithm = DesBCryptModes.GetSharedHandle(cipherMode);
BasicSymmetricCipher cipher = new BasicSymmetricCipherBCrypt(algorithm, cipherMode, blockSize, key, 0, iv, encrypting);
return UniversalCryptoTransform.Create(paddingMode, cipher, encrypting);
}
private static ICryptoTransform CreateTransformCore(
CipherMode cipherMode,
PaddingMode paddingMode,
byte[] key,
byte[] iv,
int blockSize,
bool encrypting)
{
SafeAlgorithmHandle algorithm = DesBCryptModes.GetSharedHandle(cipherMode);
BasicSymmetricCipher cipher = new BasicSymmetricCipherBCrypt(algorithm, cipherMode, blockSize, key, false, iv, encrypting);
return(UniversalCryptoTransform.Create(paddingMode, cipher, encrypting));
}
private ICryptoTransform CreateEphemeralCryptoTransformCore(byte[] key, byte[] iv, bool encrypting)
{
int blockSizeInBytes = _outer.BlockSize.BitSizeToByteSize();
SafeAlgorithmHandle algorithmModeHandle = _outer.GetEphemeralModeHandle();
BasicSymmetricCipher cipher = new BasicSymmetricCipherBCrypt(
algorithmModeHandle,
_outer.Mode,
blockSizeInBytes,
key,
iv,
encrypting);
return(UniversalCryptoTransform.Create(_outer.Padding, cipher, encrypting));
}
private static ICryptoTransform CreateTransformCore(
CipherMode cipherMode,
PaddingMode paddingMode,
byte[] key,
int effectiveKeyLength,
byte[]?iv,
int blockSize,
bool encrypting)
{
using (SafeAlgorithmHandle algorithm = RC2BCryptModes.GetHandle(cipherMode, effectiveKeyLength))
{
// The BasicSymmetricCipherBCrypt ctor will increase algorithm reference count and take ownership.
BasicSymmetricCipher cipher = new BasicSymmetricCipherBCrypt(algorithm, cipherMode, blockSize, key, true, iv, encrypting);
return(UniversalCryptoTransform.Create(paddingMode, cipher, encrypting));
}
}
private UniversalCryptoTransform CreateEphemeralCryptoTransformCore(byte[] key, byte[]?iv, bool encrypting, PaddingMode padding, CipherMode mode)
{
int blockSizeInBytes = _outer.BlockSize.BitSizeToByteSize();
SafeAlgorithmHandle algorithmModeHandle = _outer.GetEphemeralModeHandle(mode);
BasicSymmetricCipher cipher = new BasicSymmetricCipherBCrypt(
algorithmModeHandle,
mode,
blockSizeInBytes,
_outer.GetPaddingSize(mode, _outer.FeedbackSize),
key,
ownsParentHandle: false,
iv,
encrypting);
return(UniversalCryptoTransform.Create(padding, cipher, encrypting));
}
private ICryptoTransform CreateEphemeralCryptoTransformCore(byte[] key, byte[] iv, bool encrypting)
{
int blockSizeInBytes = _outer.BlockSize.BitSizeToByteSize();
SafeAlgorithmHandle algorithmModeHandle = _outer.GetEphemeralModeHandle();
BasicSymmetricCipher cipher = new BasicSymmetricCipherBCrypt(
algorithmModeHandle,
_outer.Mode,
blockSizeInBytes,
key,
iv,
encrypting);
return UniversalCryptoTransform.Create(_outer.Padding, cipher, encrypting);
}
