Re: [tor-dev] Guard node security: ways forward (An update from the dev meeting)

2014-03-06 Thread Tariq Elahi
On 05-Mar-14 5:19 PM, George Kadianakis wrote: OK, let's get back to this. This subthread is blocking us from writing a proposal for this project, so we should resolve it soon. There is one very important performance factor that I can't figure out how to measure well, and that's the impact on

Re: [tor-dev] Guard node security: ways forward (An update from the dev meeting)

2014-03-05 Thread George Kadianakis
Nicholas Hopper hop...@cs.umn.edu writes: On Tue, Feb 25, 2014 at 5:04 PM, Nicholas Hopper hop...@cs.umn.edu wrote: Another thought: we also should investigate how various thresholds affect the relationship between the cumulative guard weight total and the total exit weight. Well, that

Re: [tor-dev] Guard node security: ways forward (An update from the dev meeting)

2014-02-27 Thread George Kadianakis
Tariq Elahi tariq.el...@uwaterloo.ca writes: Hey George, Glad to see that guard questions are still being asked. Some thoughts from your plots. On 24-Feb-14 9:06 PM, George Kadianakis wrote: And because release-early-release-often, here is a graph:

Re: [tor-dev] Guard node security: ways forward (An update from the dev meeting)

2014-02-26 Thread George Kadianakis
Nicholas Hopper hop...@cs.umn.edu writes: On Tue, Feb 25, 2014 at 5:04 PM, Nicholas Hopper hop...@cs.umn.edu wrote: Another thought: we also should investigate how various thresholds affect the relationship between the cumulative guard weight total and the total exit weight. Well, that

Re: [tor-dev] Guard node security: ways forward (An update from the dev meeting)

2014-02-25 Thread Nicholas Hopper
On Mon, Feb 24, 2014 at 1:10 PM, George Kadianakis desnac...@riseup.net wrote: For example, I'm not sure if I'm using the correct bandwidth values. I'm currently using the value in 'w' lines of the consensus ('w Bandwidth=479'). I used to think that this is a unitless number, but

Re: [tor-dev] Guard node security: ways forward (An update from the dev meeting)

2014-02-25 Thread Nicholas Hopper
On Tue, Feb 25, 2014 at 5:04 PM, Nicholas Hopper hop...@cs.umn.edu wrote: Another thought: we also should investigate how various thresholds affect the relationship between the cumulative guard weight total and the total exit weight. Well, that turns out not to be a real issue: even if we set

[tor-dev] Guard node security: ways forward (An update from the dev meeting)

2014-02-24 Thread George Kadianakis
A main theme in the recent Tor development meeting was guard node security as discussed in Roger's blog post and in Tariq's et al. paper [0]. Over the course of the meeting we discussed various guard-related subjects. Here are some of them: a) Reducing the number of guards to 1 or 2 (#9273).

Re: [tor-dev] Guard node security: ways forward (An update from the dev meeting)

2014-02-24 Thread George Kadianakis
George Kadianakis desnac...@riseup.net writes: A main theme in the recent Tor development meeting was guard node security as discussed in Roger's blog post and in Tariq's et al. paper [0]. Over the course of the meeting we discussed various guard-related subjects. Here are some of them: a)

Re: [tor-dev] Guard node security: ways forward (An update from the dev meeting)

2014-02-24 Thread George Kadianakis
George Kadianakis desnac...@riseup.net writes: George Kadianakis desnac...@riseup.net writes: A main theme in the recent Tor development meeting was guard node security as discussed in Roger's blog post and in Tariq's et al. paper [0]. Over the course of the meeting we discussed various

Re: [tor-dev] Guard node security: ways forward (An update from the dev meeting)

2014-02-24 Thread Ian Goldberg
On Tue, Feb 25, 2014 at 02:06:39AM +, George Kadianakis wrote: And because release-early-release-often, here is a graph: https://people.torproject.org/~asn/guards/guard_boxplot_4000.png The middle boxplot is the probability distribution of our current guard selection process (e.g. the

Re: [tor-dev] Guard node security: ways forward (An update from the dev meeting)

2014-02-24 Thread George Kadianakis
Ian Goldberg i...@cs.uwaterloo.ca writes: On Tue, Feb 25, 2014 at 02:06:39AM +, George Kadianakis wrote: And because release-early-release-often, here is a graph: https://people.torproject.org/~asn/guards/guard_boxplot_4000.png The middle boxplot is the probability distribution of our

Re: [tor-dev] Guard node security: ways forward (An update from the dev meeting)

2014-02-24 Thread Tariq Elahi
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hey George, Glad to see that guard questions are still being asked. Some thoughts from your plots. On 24-Feb-14 9:06 PM, George Kadianakis wrote: And because release-early-release-often, here is a graph: