On 25 Feb 2017, at 03:24, Nick Mathewson nickm@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
- 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 key).
But what about relays that don't rotate onion keys at all? https://trac.torproject.org/projects/tor/ticket/20055
Should they be mentioned in this proposal, or is the ticket sufficient?
Tim
T
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