CSci 5271 Introduction to Computer Security Day 24: Electronic voting
نویسنده
چکیده
Outline Usability and security (cont' d) Elections and their security Announcements intermission System security of electronic voting Exercise sets 2 and 3 debrief Cryptography for voting Trusted UI Tricky to ask users to make trust decisions based on UI appearance Lock icon in browser, etc. Attacking code can draw lookalike indicators Lock favicon Picture-in-picture attack Smartphone app permissions Smartphone OSes have more fine-grained per-application permissions Access to GPS, microphone Access to address book Make calls Phone also has more tempting targets Users install more apps from small providers Permissions manifest Android approach: present listed of requested permissions at install time Can be hard question to answer hypothetically Users may have hard time understanding implications User choices seem to put low value on privacy Time-of-use checks iOS approach: for narrower set of permissions, ask on each use Proper context makes decisions clearer But, have to avoid asking about common things iOS app store is also more closely curated
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