Re: [tor-relays] bandwidth authority algorithm is cracked

2014-01-22 Thread starlight . 2014q1
Also keep in mind that what the bandwidth authorities actually measure is not total capacity but spare stream capacity (by downloading large files through at least 5 different two hop circuits times for each relay). Wait... So if I understand this correctly the bandwidth number is the difference

Re: [tor-relays] bandwidth authority algorithm is cracked

2014-01-22 Thread Roger Dingledine
On Wed, Jan 22, 2014 at 02:33:21PM -0500, Roger Dingledine wrote: The consensus weight is computed using a) the relay's self-advertised bandwidth in its descriptor: https://gitweb.torproject.org/torspec.git/blob/HEAD:/dir-spec.txt#l389 b) the ratios of bandwidth weights for various types of

Re: [tor-relays] bandwidth authority algorithm is cracked

2014-01-22 Thread Roger Dingledine
On Wed, Jan 22, 2014 at 01:02:29PM -0500, starlight.201...@binnacle.cx wrote: Also keep in mind that what the bandwidth authorities actually measure is not total capacity but spare stream capacity (by downloading large files through at least 5 different two hop circuits times for each relay).

Re: [tor-relays] bandwidth authority algorithm is cracked

2014-01-22 Thread starlight . 2014q1
This helps tremendously--thank you. For the most part then it appears the consensus bandwidth values assigned to the relay here are within reasonable expectation allowing for the methodology. Lately have been seeing fairly stable and moderate number of 225k vs the local 495k calculation. Next

Re: [tor-relays] bandwidth authority algorithm is cracked

2014-01-21 Thread Karsten Loesing
-relays] bandwidth authority algorithm is cracked The bandwidth authorities assign all kinds of wildly incorrect capacities to the Tor node here. The Tor relay software has been up for 45 days and has not been down for more than five minutes for three or four months. Occasional outages

Re: [tor-relays] bandwidth authority algorithm is cracked

2014-01-21 Thread julien . robin28
: Vendredi 10 Janvier 2014 05:49:20 Objet: [tor-relays] bandwidth authority algorithm is cracked The bandwidth authorities assign all kinds of wildly incorrect capacities to the Tor node here. The Tor relay software has been up for 45 days and has not been down for more than five minutes

Re: [tor-relays] bandwidth authority algorithm is cracked

2014-01-21 Thread Mike Perry
! Best regards Julien ROBIN - Mail original - De: starlight 2014q1 starlight.201...@binnacle.cx À: tor-relays@lists.torproject.org Envoyé: Vendredi 10 Janvier 2014 05:49:20 Objet: [tor-relays] bandwidth authority algorithm is cracked The bandwidth authorities assign all

Re: [tor-relays] bandwidth authority algorithm is cracked

2014-01-21 Thread krishna e bera
This could be a test of whether anyone enforces a moderation policy here. On 14-01-21 05:59 PM, julien.robi...@free.fr wrote: Hi Mike, What you said is very interesting, it was the missing part for me to understand why the weight of the relay in the consensus can drop (or rise again) so