Installing MS server is easy. You can install in a VM even, and get hostapd to auth against it. Testing does not even need a CAL/license. I am willing and interested to help in this regard.

My openssl foo is non-existent however, so as of now, I know absolutely nothing. If you're able to give me some guidance/pointers, I'd be happy to try (maybe on my 2nd N900 ) I do have SB