#26846: prop289: Leave unused random bytes in relay cell payload
-------------------------------------------------+-------------------------
Reporter: dgoulet | Owner: dgoulet
Type: enhancement | Status:
| reopened
Priority: Medium | Milestone: Tor:
| 0.4.1.x-final
Component: Core Tor/Tor | Version:
Severity: Normal | Resolution:
Keywords: prop289, 035-roadmap-subtask, | Actual Points:
prop289-assigned-sponsor-v, 041-proposed-on- |
roadmap, 0411-alpha, security |
Parent ID: #26288 | Points:
Reviewer: | Sponsor:
| SponsorV
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Comment (by arma):
We reopened this ticket because it was never done.
The current code in master will fill unused bytes with randomness, but it
will never introduce any extra unused bytes in cells. So if cells are
always full, there will be no randomness, which will make the entire flow
predictable to somebody who already knows what bytes they'll be receiving
from the other side.
We need some feature, like the one in my branch from comment:3, that
sometimes leaves a bit of space in cells.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26846#comment:15>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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