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Re: [tor-bugs] #26846 [Core Tor/Tor]: prop289: Leave unused random bytes in relay cell payload

#26846: prop289: Leave unused random bytes in relay cell payload
------------------------------------------+--------------------------------
 Reporter:  dgoulet                       |          Owner:  dgoulet
     Type:  enhancement                   |         Status:  assigned
 Priority:  Medium                        |      Milestone:  Tor:
                                          |  0.3.5.x-final
Component:  Core Tor/Tor                  |        Version:
 Severity:  Normal                        |     Resolution:
 Keywords:  prop289, 035-roadmap-subtask  |  Actual Points:
Parent ID:  #26288                        |         Points:
 Reviewer:                                |        Sponsor:  SponsorV
------------------------------------------+--------------------------------

Comment (by arma):

 The first step here is confirming that indeed the rolling circuit cell
 digest covers all of the bytes in the cell, not just the "in use"
 (rh->length) ones. I think we're good there: see the two calls to
 crypto_digest_add_bytes() in relay_crypto.c that have CELL_PAYLOAD_SIZE as
 their size argument.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26846#comment:2>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

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