Re: [tor-dev] Proposal 236 and the guardiness of a guard

2014-08-01 Thread Nikita Borisov
On Fri, Aug 1, 2014 at 7:48 AM, Zack Weinberg wrote: > If a node is an exit, maybe it shouldn't *ever* be used as a guard? > This is just off the top of my head, but it seems like there might be > some abuse possibilities in a node that sees both entering and exiting > traffic, even if they're nev

Re: [tor-dev] Proposal 236 and the guardiness of a guard

2014-08-01 Thread George Kadianakis
Nicholas Hopper writes: > On Thu, Jul 31, 2014 at 11:24 AM, George Kadianakis > wrote: >> - You can see that old guards (like RichardFeynman) see a shrinkage >> both on their guard and on their middle probabilities. This happens >> because both the total guard weight and the total middle wei

Re: [tor-dev] Proposal 236 and the guardiness of a guard

2014-08-01 Thread Zack Weinberg
If a node is an exit, maybe it shouldn't *ever* be used as a guard? This is just off the top of my head, but it seems like there might be some abuse possibilities in a node that sees both entering and exiting traffic, even if they're never for the same circuit (which I believe is the current behavi

Re: [tor-dev] Proposal 236 and the guardiness of a guard

2014-08-01 Thread George Kadianakis
Nicholas Hopper writes: > On Thu, Jul 31, 2014 at 11:24 AM, George Kadianakis > wrote: >> - You can see that old guards (like RichardFeynman) see a shrinkage >> both on their guard and on their middle probabilities. This happens >> because both the total guard weight and the total middle wei

Re: [tor-dev] Proposal 236 and the guardiness of a guard

2014-07-31 Thread Nicholas Hopper
On Thu, Jul 31, 2014 at 11:24 AM, George Kadianakis wrote: > - You can see that old guards (like RichardFeynman) see a shrinkage > both on their guard and on their middle probabilities. This happens > because both the total guard weight and the total middle weight get > bigger [5], so their

[tor-dev] Proposal 236 and the guardiness of a guard

2014-07-31 Thread George Kadianakis
One of the aims of proposal 236 is to reduce the period of inactiveness when a relay becomes a guard (see 'Phase three' of [0]). This phenomenon will become worse when the lifetime of the guard gets increased to 9 months, so we need to find a good fix. Proposal 236 tries to make young guards more