[tor-bugs] #17687 [Tor]: crypto_strongest_rand() failures should be fatal(?)

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#17687: crypto_strongest_rand() failures should be fatal(?)
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     Reporter:  yawning      |      Owner:  yawning
         Type:  enhancement  |     Status:  new
     Priority:  Medium       |  Milestone:  Tor: 0.2.8.x-final
    Component:  Tor          |    Version:  Tor: unspecified
     Severity:  Normal       |   Keywords:  crypto tor-core
Actual Points:               |  Parent ID:
       Points:               |    Sponsor:
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 Follow up from #17686.

 We either trust OpenSSL's `RAND_bytes()`, or we don't.  The existence/use
 of the call hints at the latter, so failing `crypto_strongest_rand()`
 should be fatal especially when doing Ed25519/Curve25519 key generation.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17687>
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