SafeKeyHandleImpl PrivateKey()
{
SafeKeyHandleImpl keyHandle = SafeKeyHandleImpl.InvalidHandle;
if (!CryptoApi.CryptGetUserKey(_providerHandle, (uint)_providerParameters.KeyNumber, ref keyHandle))
{
throw ExceptionUtility.CryptographicException(Marshal.GetLastWin32Error());
}
return(keyHandle);
}
/// <summary>
/// The get user key.
/// </summary>
/// <param name="keySpec">
/// The key spec.
/// </param>
/// <returns>
/// The <see cref="KeyContext"/>.
/// </returns>
/// <exception cref="Win32Exception">
/// </exception>
private KeyContext GetUserKey(int keySpec = 0)
{
var keyPiarHandler = IntPtr.Zero;
if (!CryptoApi.CryptGetUserKey(cspHandler, keySpec, ref keyPiarHandler))
{
throw new Win32Exception();
}
var keyPairContext = new KeyContext(keyPiarHandler);
return(keyPairContext);
}
