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| author | Mike Perry <mikeperry-git@fscked.org> | 2012-05-03 20:15:34 -0700 |
|---|---|---|
| committer | Mike Perry <mikeperry-git@fscked.org> | 2012-06-14 13:19:56 -0700 |
| commit | 8d59690033b1cc2b462b2b9ed61ddeaebb6f9ab0 (patch) | |
| tree | f7556253569fdf6f9d3ac817deb20743cf5b4f14 /ChangeLog | |
| parent | 75706527c16fc62ec7db4e496db76e21c79c664a (diff) | |
| download | tor-8d59690033b1cc2b462b2b9ed61ddeaebb6f9ab0.tar.gz tor-8d59690033b1cc2b462b2b9ed61ddeaebb6f9ab0.zip | |
Defend against entry node path bias attacks
The defense counts the circuit failure rate for each guard for the past N
circuits. Failure is defined as the ability to complete a first hop, but not
finish completing the circuit all the way to the exit.
If the failure rate exceeds a certain amount, a notice is emitted.
If it exceeds a greater amount, a warn is emitted and the guard is disabled.
These values are governed by consensus parameters which we intend to tune as
we perform experiments and statistical simulations.
Diffstat (limited to 'ChangeLog')
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