[tor-bugs] #17799 [Tor]: Hash All PRNG output before use

Tor Bug Tracker & Wiki blackhole at torproject.org
Thu Dec 10 19:32:56 UTC 2015


#17799: Hash All PRNG output before use
--------------------+------------------------------------
 Reporter:  teor    |          Owner:
     Type:  defect  |         Status:  needs_revision
 Priority:  Medium  |      Milestone:  Tor: 0.2.8.x-final
Component:  Tor     |        Version:  Tor: unspecified
 Severity:  Normal  |     Resolution:
 Keywords:          |  Actual Points:
Parent ID:          |         Points:
  Sponsor:          |
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Comment (by yawning):

 I don't mind this in principle.

 But if we're *that* scared of OpenSSL's RAND_bytes(), we may as well wrap
 our newfangled PRNG construct in the appropriate OpenSSL struct and set it
 as the engine so that TLS and all the OpenSSL internal entropy requests
 use our thing as well.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17799#comment:3>
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