[tor-bugs] #13696 [Tor]: Use syscall-based entropy reading where possible.

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

#13696: Use syscall-based entropy reading where possible.
-----------------------+------------------------------------
 Reporter:  nickm      |          Owner:
     Type:  defect     |         Status:  new
 Priority:  normal     |      Milestone:  Tor: 0.2.6.x-final
Component:  Tor        |        Version:
 Keywords:  tor-relay  |  Actual Points:
Parent ID:             |         Points:
-----------------------+------------------------------------
 When we're setting up our CSPRNG, we should use syscalls where possible,
 and ensure that we're using the "block if inadequately seeded" variant
 whenever one exists.

 See #10676 for an earlier version of this; but that isn't the sensible way
 to do it at all.  I'll start working on this once I have a linux that
 supports getentropy().

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13696>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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