Adapt browser time based on tor's notion of clock skew...

TorButton / Tor Browser Bundle user with inaccurate system time (e.g. offset >5minutes or even hours) might be fingerprintable based on there system time. What do you think about a feature in TorBrowser that would warn an user with inaccurate system time and suggest NTP if the system time is off by more than a certain (configurable) amount of time?

http://browserspy.dk/date.php

added component::applications/tor browser gitlab-tb-torbutton owner::tbb-team priority::high severity::normal status::new tbb-fingerprinting-time-skew tbb-torbutton type::enhancement labels

Trac:
Cc: N/A to tagnaq@gmail.com

Oh man.. We'd need to make Torbutton a controller to solve this properly..

Trac:
Priority: normal to major
Component: Tor bundles/installation to TorBrowserButton
Summary: TorButton/TorBrowser feature request: show warning if system time is out of certain boundaries to Adapt browser time based on tor control port events...
Owner: erinn to mikeperry

Trac:
Parent: N/A to #3059 (moved)
Summary: Adapt browser time based on tor control port events... to Adapt browser time based on tor's notion of clock skew...

#3652 (moved) is the Tor Client bug we need to do this easily.

The two sources for time in Firefox appear to be limited to PR_Now() and PRMJ_Now(). Not sure what the most efficient way to get the offset into these functions will be, though... Did someone say global variable that gets set from a pref observer? Yes, that sounds like a plan.

Trac:
Cc: tagnaq@gmail.com to tagnaq@gmail.com, StrangeCharm

Trac:
Cc: tagnaq@gmail.com, StrangeCharm to tagnaq@gmail.com, StrangeCharm, g.koppen@jondos.de

Trac:
Keywords: N/A deleted, tbb-fingerprinting added

Trac:
Keywords: N/A deleted, tbb-torbutton added
Component: TorBrowserButton to Tor Browser
Owner: mikeperry to tbb-team

See also #12999 (moved).

Trac:
Keywords: tbb-fingerprinting deleted, tbb-fingerprinting-time-skew added

Trac:
Parent: #3059 (moved) to N/A

Trac:
Cc: tagnaq@gmail.com, StrangeCharm, g.koppen@jondos.de to tagnaq@gmail.com, StrangeCharm, gk

Trac:
Cc: tagnaq@gmail.com, StrangeCharm, gk to tagnaq@gmail.com, StrangeCharm, gk, adrelanos@riseup.net

Trac:
Sponsor: N/A to N/A
Cc: tagnaq@gmail.com, StrangeCharm, gk, adrelanos@riseup.net to tagnaq@gmail.com, StrangeCharm, gk, adrelanos@riseup.net, nicoo

Set all open tickets without a severity to "Normal"

Trac:
Severity: N/A to Normal

Trac:
Cc: tagnaq@gmail.com, StrangeCharm, gk, adrelanos@riseup.net, nicoo to tagnaq@gmail.com, gk, adrelanos@riseup.net, nicoo
Reviewer: N/A to N/A

Trac:
Keywords: N/A deleted, gitlab-tb-torbutton added

mentioned in issue #3331 (closed)

mentioned in issue #3652 (moved)

mentioned in issue #12999 (moved)

mentioned in issue tpo/core/tor#3652 (closed)

moved to tpo/applications/torbutton#2940 (closed)