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Security/Anonymous Browsing: Difference between revisions
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→Clock Delta+Precision
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http://arstechnica.com/tech-policy/news/2010/02/firm-uses-typing-cadence-to-finger-unauthorized-users.ars | http://arstechnica.com/tech-policy/news/2010/02/firm-uses-typing-cadence-to-finger-unauthorized-users.ars | ||
One possibility might be to quantize Date values to the second, and then add random, monotonically increasing amounts of milliseconds to subsequent calls during anonymous browsing mode, along with a random per-page or per-origin offset. | One possibility might be to quantize Date values to the second, and then add random, monotonically increasing amounts of milliseconds to subsequent calls during anonymous browsing mode, along with a random per-page or per-origin offset. Another possibility would be to simply bin the milliseconds to low resolution (250ms or so). Studies would need to be done to determine how effective either approach is. | ||
Additionally, interval timers and event timestamps would need reduced resolution, due to computational fingerprinting: | |||
http://w2spconf.com/2011/papers/jspriv.pdf | |||
==Screen Resolution and Properties== | ==Screen Resolution and Properties== | ||