Question about implementing a test for BCryptGetFipsAlgorithmMode
juan.lang at gmail.com
Mon Sep 22 10:39:28 CDT 2014
On Fri, Sep 19, 2014 at 12:49 PM, Kai Blaschke <kai.blaschke at kb-dev.net>
> If you need to do something that requires admin privileges, you should
>> try to do it and check for an access denied error. If it fails with
>> access denied, you should skip the test. (Ideally, you should try
>> running your test with a limited account on Windows.)
> Non-admin users lack the proper access rights to change anything in HKLM,
> so at least on modern systems with active UAC the test won't work.
> I would be more worried about the fact that it's changing a global
>> user preference. Maybe you should just read the key and verify that
>> the API matches the value there.
> It's worse, to fully test both OS variants, the test would have to delete
> and create subkeys, since Microsoft put the value under a subkey of the
> name of the former value since Vista. That's nothing I'd like to do on some
> unsuspecting user's machine.
> This is probably more depth than you should be putting into
>> investigating native's behavior. If it's supposed to be a boolean, and
>> the expected values are 1 and 0, you can assume it's one of those and
>> not worry about what happens if it's 256 (unless you know a real
>> application that sets that value).
> Yeah, that's what the documentation states, too. I tested this just out of
> I'll leave it with my current code for both the implemenation and the
> test, and submit the patch for reviewing.
Kai, out of curiosity, is there an app that depends on being able to enable
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