[tor-dev] Proposal 274: Rotate onion keys less frequently
nickm at alum.mit.edu
Mon Feb 27 00:37:18 UTC 2017
On Sun, Feb 26, 2017 at 6:06 AM, teor <teor2345 at gmail.com> wrote:
>> On 25 Feb 2017, at 03:24, Nick Mathewson <nickm at torproject.org> wrote:
>> Filename: 274-rotate-onion-keys-less.txt
>> Title: Rotate onion keys less frequently.
>> Author: Nick Mathewson
>> Created: 20-Feb-2017
>> Status: Open
>> Target: 0.3.1.x-alpha
>> 1. Overview
>> This document proposes that, in order to limit the bandwidth needed
>> for microdescriptor listing and transmission, we reduce the onion key
>> rotation rate from the current value (7 days) to something closer to
>> 28 days.
>> Doing this will reduce the total microdescriptor download volume
>> by approximately 70%.
> Thanks for this, Nick!
> It seems sensible to me: a significant reduction in directory bandwidth
> for a minor decrease in forward secrecy.
> Proposal 277 deals with relays that appear to "rotate" onion keys very
> frequently (because they have multiple instances with the same identity
> But what about relays that don't rotate onion keys at all?
> Should they be mentioned in this proposal, or is the ticket sufficient?
I think the ticket's fine -- though they could get mentioned in
proposal 277 too.
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