[tbb-bugs] #14952 [Applications/Tor Browser]: Audit HTTP/2 and SPDY if needed

Tor Bug Tracker & Wiki blackhole at torproject.org
Mon Aug 13 15:16:23 UTC 2018

#14952: Audit HTTP/2 and SPDY if needed
 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  task                                 |         Status:
                                                 |  needs_revision
 Priority:  Very High                            |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-linkability, tbb-usability-      |  Actual Points:
  website, tbb-performance, ff60-esr,            |
  TorBrowserTeam201808                           |
Parent ID:  #25735                               |         Points:
 Reviewer:                                       |        Sponsor:
Changes (by gk):

 * keywords:
     tbb-linkability, tbb-usability-website, tbb-performance, ff60-esr,
     tbb-linkability, tbb-usability-website, tbb-performance, ff60-esr,
 * status:  needs_review => needs_revision


 Nice, thanks for the investigation. Some first thoughts while reading
 through your notes:

 1) Is the disk avoidance requirement respected in case there is some
 caching going on?
 2) Does New Identity give us a clean slate with HTTP/2 enabled?
 3) I don't see why we want to have server push enabled. Let's try with
 that disabled first.
 4) I am fine leaving possible PING/SETTINGS-related timing side-channels
 for a different bug for now. If so, please open a new one.
 5) I am not overly happy about the different values of some of the prefs
 you mentioned above depending on being on a desktop/mobile platform we
 should investigate the impact of shipping the same configuration for both
 of them. After all, `tbb-fingerprinting-os` bugs are still bugs. I guess
 this can be done in a new bug as well.

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/14952#comment:44>
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