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math results #30

Thorin-Oakenpants opened this issue Mar 19, 2019 · 2 comments


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commented Mar 19, 2019


  • use: if you want
  • I split EMCAScript 1st (cos) and 6th editions (higher math functions) into 2 groups. Of the 6th Edition examples in the Tor ticket, only three varied, and seem to provide enough entropy, so I dropped the rest
  • In order to make it a bit easier to navigate, I am now just using hashes
  • I use hash combos (so I can track where ECMA 1 vs 6 makes a difference: e.g TB did something to apply the same ECMA1 library in windows 64 and Windows 32 - Firefox does not)
  • What Tor Browser did was remove some entropy, but open up others
    • e.g in TB I can't always tell if the platform is 32 or 64 bit, but I can always tell if TB is a 32 or 64 bit build
    • conversely in Firefox, I can always tell if the build is 32 or 64 bit, but not the platform
  • Interestingly enough, whatever Chrome did, they are the same *everywhere regardless of bild or platform or platform architecture/ISA
  • ^^ I have a list of some bugzillas, but can't find the one I was really after, and was considering opening a new ticket on math FP'ng and applying the same libraries everywhere like Chrome (but I have no idea just how complex that is, or even possible)

Will email you my spreadsheet. Pics in next post


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commented Mar 19, 2019

detailed math results

  • the top 3 math results are the ECMAScript 6 items - as you can see, in FF variants there are only 2 results (blue/yellow)
  • the cos values come in numerous sets of results, but this is all a bit had to manually follow

math combos

  • much easier to follow
  • as you can see there are (so far, and unless Android 32 vs 64 throws up some new ones), six Firefox and five Tor Browser (note: no Tor Browser on android, also E1 should be TB as well, I need to confirm) distinct values

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commented Mar 19, 2019

@tomrittervg emailed you the spreadsheet - let me know if you didn't get it

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