[tor-bugs] #22963 [Core Tor/Tor]: Make relay integrity digests harder to guess by padding cells with random bytes

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#22963: Make relay integrity digests harder to guess by padding cells with random
bytes
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 Reporter:  teor          |          Owner:
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Milestone:  Tor: 0.3.2.x-final
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:  security      |  Actual Points:
Parent ID:  #22948        |         Points:
 Reviewer:                |        Sponsor:
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Comment (by cypherpunks):

 Replying to [comment:2 teor]:
 > we want that space to add future fields in
 No, that's not a concern. It's easy to transmit whatever future stuff may
 be wanted by using structure in the 'randomness', i.e. the way relays
 currently recognize cells that are for them. And remember that the spec
 says it should be random, so other implementations will have made it
 random.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22963#comment:3>
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