How to set read permission on the private key file of X.509 certificate from .NET

Question

Here is the code to add a pfx to the Cert store.

X509Store store = new X509Store( StoreName.My, StoreLocation.LocalMachine );
store.Open( OpenFlags.ReadWrite         


        

Answer 1

To do it programmatically, you have to do three things:

1. Get the path of the private key folder.

2. Get the file name of the private key within that folder.

3. Add the permission to that file.

See this post for some example code that does all three (specifically look at the "AddAccessToCertificate" method).