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GitLab is used only for code review, issue tracking and project management. Canonical locations for source code are still https://gitweb.torproject.org/ https://git.torproject.org/ and git-rw.torproject.org.

  • Legacy
  • TracTrac
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  • #30532

Closed (moved)
Open
Opened May 18, 2019 by Thorin@thorin

font FP reveals different Windows releases

based on Arthur's work [1], I have been looking at the enumerate fonts FP for TB 8 and 8.5a and various platforms.

[1] https://ghacksuserjs.github.io/TorZillaPrint/TorZillaPrint.html#fonts ^^ just click run tests, and the only test I have actually added is the one we're concerned about

  • Linux distros all seem to be the same - I will test more
  • I do not have a Mac, but I do have one result, should anyone like to contribute, and I don't think Macs would vary
  • But I found Windows (so far in three out 3 cases) is revealing the major version and maybe the architecture. I believe this might be fixed by looking at the font whitelist, but Windows 10 is a rather drastic change (at least from Win7).
  • I will try and get Win10-32bit, Win8.1 32+64bit results to build a complete picture of Windows font entropy. If you can provide it instead of me trying to find isos and setting up more VMs, then please do

So here are some results (8.0.9, 8.5a12)

  • Win 7 32bit: 9e5d39b4542cd5e2a19f73b8fa566e679fa561e5 (62 fonts)
  • Win 7 64bit: ad4ccd607603041d3e89aa8e03e2e203fc184653 (61 fonts)
  • Win8.1 32bit: please help
  • Win8.1 64bit: please help
  • Win 10 32bit: please help
  • win 10 64bit: 1389aaf4c97027b8157c5fb9ef5ed6f141a6b8a1 (36 fonts)

also, FYI

  • mint (32/64bit), ubuntu, debian: 09a4ee037c9082b9b8f0b7ae981c656d517faffa
  • mac 10.14: 4094aedc000205c711385fad32827e60462976dc

Note that the 1 font difference between Win7 32 and 64 bit is just the count, there are actually three changes. I will post the font lists for the three windows results in the next post

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Reference: legacy/trac#30532