internal override NCryptKeyOrCryptProviderSafeHandle OpenExisting(string keyName, out KeySpec keySpec)
{
keySpec = KeySpec.NONE;
NCryptKeyOrCryptProviderSafeHandle keyHandle;
var result = NCrypt.NCryptOpenKey(_storageProvider.Handle, out keyHandle, keyName, KeySpec.NONE, 0u);
if (result == SECURITY_STATUS.ERROR_SUCCESS)
{
return(keyHandle);
}
if (result == SECURITY_STATUS.NTE_BAD_KEYSET)
{
return(null);
}
throw new InvalidOperationException("Failed to open key.");
}
void acquirePrivateKeyFromKeyBuilder()
{
Int32 hresult = NCrypt.NCryptOpenStorageProvider(out SafeNCryptProviderHandle phProv, _keyInfo.ProviderName, 0);
if (hresult != 0)
{
openLegacyPrivateKey();
return;
}
UInt32 dwFlags = 0;
if (_keyInfo.MachineContext)
{
dwFlags = nCrypt2.NCRYPT_MACHINE_KEY_FLAG;
}
hresult = NCrypt.NCryptOpenKey(phProv, out phPrivKey, _keyInfo.KeyContainerName, (UInt32)_keyInfo.KeySpec, dwFlags);
if (hresult != 0)
{
throw new CryptographicException(hresult);
}
isCng = true;
}