WindowsCryptographicException: Keyset does not exist

Question

I want to create or obtain a certificate, create a pfx-file, load it and have IdentityServer use it. However, IdentityServer is not able to use my pfx.

How to successful

Answer 1

The problem was resolved by adding IIS_IUSR group. From this link Add group IIS_IUSR:

The problem was that the Permissions for the Private Key of the Certificate in the Windows Certificate Store did not have the IIS_IUSRS group set to allow read access.

Right click certificate -> All Tasks -> Manage Private Keys -> Add group "IIS_IUSRS"