protected override byte[] HashData(Stream data, HashAlgorithmName hashAlgorithm)
{
// we're sealed and the base should have checked this already
Debug.Assert(data != null);
Debug.Assert(!string.IsNullOrEmpty(hashAlgorithm.Name));
using (HashAlgorithm hash = Gost3411_2012_256.Create())
{
return(hash.ComputeHash(data));
}
}
protected override byte[] HashData(byte[] data, int offset, int count, HashAlgorithmName hashAlgorithm)
{
// we're sealed and the base should have checked this already
Debug.Assert(data != null);
Debug.Assert(count >= 0 && count <= data.Length);
Debug.Assert(offset >= 0 && offset <= data.Length - count);
Debug.Assert(!string.IsNullOrEmpty(hashAlgorithm.Name));
using (HashAlgorithm hash = Gost3411_2012_256.Create())
{
return(hash.ComputeHash(data, offset, count));
}
}
public Gost3410_2012_256CryptoServiceProvider(IntPtr hProvHandle, int keySpec)
{
_safeProvHandle = new SafeProvHandle(hProvHandle, true);
_keySpec = keySpec;
LegalKeySizesValue = new KeySizes[] { new KeySizes(
GostConstants.GOST3410_2012_256KEY_SIZE, GostConstants.GOST3410_2012_256KEY_SIZE, 0) };
_safeKeyHandle = CapiHelper.GetKeyPairHelper(
CspAlgorithmType.Gost2012_256,
keySpec,
GostConstants.GOST3410_2012_256KEY_SIZE,
_safeProvHandle);
_hashImpl = Gost3411_2012_256.Create();
}
public Gost3410_2012_256CryptoServiceProvider(CspParameters parameters)
{
_parameters = CapiHelper.SaveCspParameters(
CapiHelper.CspAlgorithmType.Gost2012_256,
parameters,
s_useMachineKeyStore,
out _randomKeyContainer);
_keySpec = _parameters.KeyNumber;
LegalKeySizesValue = new KeySizes[] { new KeySizes(GostConstants.GOST3410_2012_256KEY_SIZE, GostConstants.GOST3410_2012_256KEY_SIZE, 0) };
_hashImpl = Gost3411_2012_256.Create();
if (!_randomKeyContainer)
{
GetKeyPair();
}
}