[tor-bugs] #18042 [Tor Browser]: Make sure certificates signed with SHA-1 are not accepted anymore in ESR 45

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

#18042: Make sure certificates signed with SHA-1 are not accepted anymore in ESR 45
-----------------------------+------------------------------------
     Reporter:  gk           |      Owner:  tbb-team
         Type:  task         |     Status:  new
     Priority:  High         |  Milestone:
    Component:  Tor Browser  |    Version:
     Severity:  Major        |   Keywords:  tbb-security, ff45-esr
Actual Points:               |  Parent ID:
       Points:               |    Sponsor:
-----------------------------+------------------------------------
 MOzilla released Firefox 43 which did not accept SHA-1 signed certificates
 anymore. However, this apparently broke some MITM boxes
 (https://blog.mozilla.org/security/2016/01/06/man-in-the-middle-
 interfering-with-increased-security/) and they released a point update
 reverting this change.

 We don't want to have this security feature reverted and should make sure
 our ESR 45 based code is rejecting SHA-1 signed certificates as expected.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18042>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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