Add support for ГОСТ through the msspi interface

[PuppyLo]

Thanks for your suggestion.
Can you provide an URL to test GOST cipher?

And what about this extension, is it useful for GOST support?
https://www.cryptopro.ru/products/cades/plugin

you can use the tax office website for testing. There will be a button to Start the test.
https://lkip2.nalog.ru/lk#/certificate/requirements

And the plugin you provided is needed to work with Digital signature