~/talk

Navigating the Vast Ocean of Browser Fingerprints

Talkat BSidesSF 2018 · on Sunday, 2018-04-15· [security, machine-learning]
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slides:none on file

A practical method combines browser fingerprints with feature engineering to build sparse distributed representations that encode similarity directly, using Python/Numenta encoders and composite encoders for version, categorical and periodic fields. Tests use user‑agent parsing (Edgar dataset, a small 115‑row sample) and visualized via multi‑dimensional scaling; SDRs produce tighter clusters and better track device evolution than string‑distance or word2vec approaches. Key data points: HTML5 canvas yields ~18 bits, SDRs avoid constant retraining and are released as open‑source Python for Hadoop use.

AI-written summary · about

  1. 0:00Introduction and disclaimers
  2. 2:13What is browser fingerprinting
  3. 8:40Traditional fingerprint use cases
  4. 12:39Feature engineering for fingerprints
  5. 17:37Sparse distributed representations
  6. 20:25How sparse encodings work
  7. 27:15Encoding version numbers and composites
  8. 29:23Visualizing fingerprint distances
  9. 31:56Coolest InfoSec creatures
  10. 33:19Q&A and closing remarks
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