It sounds like the computers are owned by the people taking the test, and are not owned by the testing center.
How is the test data delivered to the client? What's to prevent someone from grabbing network traffic and memory of the test application in the background? --Jim On Fri, Feb 21, 2014 at 12:55 PM, Bradley O'Hearne <br...@bighillsoftware.com> wrote: > On Feb 21, 2014, at 10:08 AM, Uli Kusterer <witness.of.teacht...@gmx.net> > wrote: > >> On 21 Feb 2014, at 17:54, Bradley O'Hearne <br...@bighillsoftware.com> wrote: >>> - A kiosk-type environment isn't some kind of wacky edge use-case. The >>> question really distills down to whether or not OS X provides APIs that >>> allow an app to facilitate a secure kiosk-type environment. Maybe the >>> design philosophy behind OS X is opposed to this scenario / use-case. I >>> hope that isn't the case, but if it is, that's an answer, and while not the >>> desired answer, we can move forward with the knowledge that OS X kiosks >>> aren't an option. >> >> >> Wait, this is a controlled Kiosk situation? In that case, registering a >> global hotkey that overrides Cmd-Shift-3 and Cmd-Shift-4 should probably >> work ... ? Though I'm confused, if you're in Kiosk mode, the user couldn't >> even copy a screenshot made. > > Uli -- thanks for the reply. Few things: > > - I've tried registering a global hotkey -- it doesn't override Cmd-Shift-3 > or -4, it just adds a new function to it. Apparently global hotkeys can > "hook" (if that's the right word) at multiple levels. I've actually found a > way to deal with those keystroke commands, though a pain and less than > elegant (and annoying for the user). It involves some Carbon calls and (on > Mavericks) having to open System Preferences - > Security & Privacy -> > Accessibility settings. But that doesn't solve the problem of remote desktop, > screen recording, Airplay, etc. > > - I apologize if I confused things by mentioning kiosks. I used that term > because it is a common reference point that might quickly explain the idea. > In reality, this isn't a physical kiosk, like one you'd find in a mall, that > belongs to no user, and is dedicated to the purpose. This is rather an app > running on users' Macs, its just that when the app runs, it has to > temporarily take control of their machines, deliver a test such that the user > doesn't cheat (by having other apps like a web browser available), and the > test content isn't copied, and as soon as the app is exited, things return to > normal. While the user is taking the test, they are proctored by a live > person via an internal / external video camera, which streams video to a > proctoring center full of proctors. > > Perhaps I can rephrase the design requirement here in terms (this specific > example is is fictional for example) which illustrate better the scenario: > > A potential high-profile organization approaches your company and says, "If > you can deliver our very expensive certification tests to users' Macs, > prevent users from cheating, and prevent them from using their Macs (via > screenshots, screen scraping, remote desktop, screen recording, etc.) to copy > the test content being delivered, we will pay your organization $250K per > year. If you can't secure our test content being delivered, we will not use > your product at all." > > So, can OS X handle this use-case? > > Brad > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/cocoa-dev/jim.zajkowski%40gmail.com > > This email sent to jim.zajkow...@gmail.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
