private byte[] _currentIv; // CNG mutates this with the updated IV for the next stage on each Encrypt/Decrypt call.
// The base IV holds a copy of the original IV for Reset(), until it is cleared by Dispose().
public CngCipher(SafeAlgorithmHandle algorithm, CipherMode cipherMode, int blockSizeInBytes, byte[] key, byte[] iv, bool encrypting)
: base(cipherMode.GetCipherIv(iv), blockSizeInBytes)
{
Debug.Assert(algorithm != null);
_encrypting = encrypting;
if (IV != null)
{
_currentIv = new byte[IV.Length];
}
_hKey = algorithm.BCryptImportKey(key);
Reset();
}
private byte[] _currentIv; // CNG mutates this with the updated IV for the next stage on each Encrypt/Decrypt call.
// The base IV holds a copy of the original IV for Reset(), until it is cleared by Dispose().
public TripleDesCngCipher(CipherMode cipherMode, int blockSizeInBytes, byte[] key, byte[] iv, bool encrypting)
: base(cipherMode.GetCipherIv(iv), blockSizeInBytes)
{
_encrypting = encrypting;
if (IV != null)
{
_currentIv = new byte[IV.Length];
}
SafeAlgorithmHandle hAlg = GetCipherAlgorithm(cipherMode);
_hKey = hAlg.BCryptImportKey(key);
Reset();
}
protected AesCngCryptoTransform(CipherMode cipherMode, PaddingMode paddingMode, byte[] key, byte[] iv, int blockSize)
: base(cipherMode, paddingMode, blockSize)
{
byte[] cipherIv = GetCipherIv(iv);
if (cipherIv != null)
{
_iv = cipherIv.CloneByteArray();
_currentIv = new byte[cipherIv.Length];
}
SafeAlgorithmHandle hAlg = GetCipherAlgorithm(cipherMode);
_hKey = hAlg.BCryptImportKey(key);
Reset();
}
private byte[] _currentIv; // CNG mutates this with the updated IV for the next stage on each Encrypt/Decrypt call.
// The base IV holds a copy of the original IV for Reset(), until it is cleared by Dispose().
public BasicSymmetricCipherBCrypt(SafeAlgorithmHandle algorithm, CipherMode cipherMode, int blockSizeInBytes, byte[] key, bool ownsParentHandle, byte[] iv, bool encrypting)
: base(cipherMode.GetCipherIv(iv), blockSizeInBytes)
{
Debug.Assert(algorithm != null);
_encrypting = encrypting;
if (IV != null)
{
_currentIv = new byte[IV.Length];
}
_hKey = algorithm.BCryptImportKey(key);
if (ownsParentHandle)
{
_hKey.SetParentHandle(algorithm);
}
Reset();
}
private byte[] _currentIv; // CNG mutates this with the updated IV for the next stage on each Encrypt/Decrypt call.
// The base IV holds a copy of the original IV for Reset(), until it is cleared by Dispose().
public BasicSymmetricCipherBCrypt(SafeAlgorithmHandle algorithm, CipherMode cipherMode, int blockSizeInBytes, byte[] key, int effectiveKeyLength, byte[] iv, bool encrypting)
: base(cipherMode.GetCipherIv(iv), blockSizeInBytes)
{
Debug.Assert(algorithm != null);
_encrypting = encrypting;
if (IV != null)
{
_currentIv = new byte[IV.Length];
}
_hKey = algorithm.BCryptImportKey(key);
if (effectiveKeyLength != 0)
{
Cng.SetEffectiveKeyLength(_hKey, effectiveKeyLength);
}
Reset();
}
private void ImportKey(ReadOnlySpan <byte> key)
{
_keyHandle = s_aesCcm.BCryptImportKey(key);
}
