/// <summary>
/// The export key.
/// </summary>
/// <param name="protectionKeyContext">
/// The protection key context.
/// </param>
/// <param name="blobType">
/// The blob type.
/// </param>
/// <param name="falgs">
/// The falgs.
/// </param>
/// <returns>
/// The <see cref="byte[]"/>.
/// </returns>
/// <exception cref="Win32Exception">
/// </exception>
private byte[] ExportKey(KeyContext protectionKeyContext, int blobType, int falgs)
{
var protectionKeyHandler = IntPtr.Zero;
if (protectionKeyContext != null)
{
protectionKeyHandler = protectionKeyContext.Handler;
}
var exportBufferSize = 0;
if (!CryptoApi.CryptExportKey(handler, protectionKeyHandler, blobType, falgs, null, ref exportBufferSize))
{
throw new Win32Exception();
}
var result = new byte[exportBufferSize];
if (!CryptoApi.CryptExportKey(handler, protectionKeyHandler, blobType, falgs, result, ref exportBufferSize))
{
throw new Win32Exception();
}
return(result);
}
