[Question] From where NgcCacheType comes from

[APshenkin]

Hi

First, thank you for this great repo, that shows how to use Windows Hello via nCrypt API instead of KeyCredentialManager.

This is really useful and more powerful than abilities that KeyCredentialManager provides.

I'm currently trying to implement support of Windows Hello in my project that is using golang and I wanted to use your approach. However my main consern, that this way is not documented in any way by Microsoft. Especially this option NgcCacheType can be found only in your plugin :)

I actually asked this question on Microsoft Q&A site, but not sure that will get some answer https://learn.microsoft.com/en-us/answers/questions/2100690/undocumented-usage-of-ncrypt-with-microsoft-passpo

Therefore wanted to ask, how did you discovered this NgcCacheType option? Was it just guess based on strings in cryptngc.dll or you found this mentioned in some documentation? Or maybe you contacted Microsoft about it?

Would appreciate for any answer :)