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tor network partition/clique scanner

This project has the singular goal of scanning the Tor network for partitions. However this code originated from bwscanner which can be found here: https://github.com/TheTorProject/bwscanner

(the original git history is not preserved in this repository)

scan method

It's simple. Make two hop Tor circuits, for each circuit build we record:

  • success
  • fail
  • timeout
  • time duration to failure
  • time duration to success

Care is taken to not make rapid sequential Tor circuit builds through the same relays. Said another way: we use the Fisher Yates shuffle algorithm to shuffle our circuit permutations.

special features

  • partition scheme Fisher Yates shuffling alogirthm allowing the scanner to run on multiple processes or machines so that different slices of circuit permutations can be scanned in parallel
  • uses relays from consensus file or a text file containing relay fingerprints
  • can optionally test circuits specified in a text file... and can optionally reverse circuit polarity
  • resume feature NOT YET FINISHED: https://github.com/david415/tor_partition_scanner/issues/1

contributors

Special thanks to the following excellent humans who have contributed code:

license

GPL3 - see LICENSE file for details

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scanner for detecting partitions on the tor network

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