[tor-bugs] #17981 [Tor]: [PATCH] replace getentropy() with arc4random_buf()

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#17981: [PATCH] replace getentropy() with arc4random_buf()
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 Reporter:  logan   |          Owner:
     Type:  defect  |         Status:  new
 Priority:  Medium  |      Milestone:
Component:  Tor     |        Version:
 Severity:  Normal  |     Resolution:
 Keywords:          |  Actual Points:
Parent ID:          |         Points:
  Sponsor:          |
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Comment (by yawning):

 NACK.

 > getentropy() fills a buffer with high-quality entropy, which can be used
 as input for process-context pseudorandom generators like arc4random(3).

 The OpenSSL CSPRNG is a process-context pseudorandom generator. #17799's
 SHAKE based CSPRNG is a process-context pseudorandom generator, and
 neither are normal code, and we really do want raw entropy.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17981#comment:1>
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