[tor-relays] pinning relay keys to IPs (or not)

[Roger Dingledine]

On Wed, Jul 29, 2015 at 02:59:05AM +0200, nusenu wrote:
> Roger Dingledine:
> > I wonder how many guards shift location significantly across the
> > Internet, and how often?
> 
> So nothing to worry about to much I guess.

Or to turn it around, it makes it a lot easier to dump the WFU
(weighted fractional uptime, one of the components of the Guard
calculation) tracking when a relay changes AS -- we don't mess up normal
relays, and we protect users from the rare dangerous ones.

The "but that makes the IP-to-AS database a new vulnerability" issue
remains though.

--Roger