Actions

Boot Clock Randomization

From Whonix


Introduction[edit]

The TimeSync page notes:

Using Boot Clock Randomization, i.e. after boot, the clock is set randomly between 0 and 180 seconds into the past or future. This is useful to enforce the design goal, that the host clock and Whonix-Workstation ™ clock should always slightly differ. It is also useful to obfuscate the clock when sdwdate itself is running, because naturally at this time, sdwdate hasn't finished. sdwdate runs after booting.

By randomly moving the system clock a few seconds (and nanseconds) in the past or future during boot, this enforces the design goal of a slightly different host clock and Gateway/Workstation clock, even before secure timesync has succeeded. This prevents time-based fingerprinting and linkability issues, thereby improving anonymity and privacy. [1]

For technical discussion on the Boot Clock Randomization design, see here [archive]. [2]

Log Inspection[edit]

Open /var/log/bootclockrandomization.log in an editor as a regular, non-root user.

If you are using a graphical environment, run.

mousepad /var/log/bootclockrandomization.log

If you are using a terminal, run.

nano /var/log/bootclockrandomization.log

For an overview of the time synchronization mechanism in Whonix ™, see here.

Footnotes[edit]

  1. https://github.com/Whonix/bootclockrandomization [archive]
  2. Notably, one recent change is the 0-5 second time window is no longer excluded in the process, as it was found to aid fingerprinting.


Search engines: YaCy | Qwant | ecosia | MetaGer | peekier


Follow: Twitter.png Facebook.png 1280px-Gab text logo.svg.png Iconfinder news 18421.png Rss.png Matrix logo.svg.png 1024px-Telegram 2019 Logo.svg.png Discourse logo.svg Reddit.jpg Diaspora.png Gnusocial.png Mewe.png 500px-Tumblr Wordmark.svg.png Iconfinder youtube 317714.png 200px-Minds logo.svg.png 200px-Mastodon Logotype (Simple).svg.png 200px-LinkedIn Logo 2013.svg.png

Donate: Donate Bank Wire Paypal Bitcoin accepted here Monero accepted here Contriute

Whonix donate bitcoin.png Monero donate whonix.png United Federation of Planets 1000px.png

Share: Twitter | Facebook

Have you contributed [archive] to Whonix ™? If so, feel free to add your name and highlight what you did on the Whonix authorship [archive] page.

https link onion link

This is a wiki. Want to improve this page? Help is welcome and volunteer contributions are happily considered! Read, understand and agree to Conditions for Contributions to Whonix ™, then Edit! Edits are held for moderation. Policy of Whonix Website and Whonix Chat applies.

Copyright (C) 2012 - 2020 ENCRYPTED SUPPORT LP. Whonix ™ is a trademark. Whonix ™ is a licensee [archive] of the Open Invention Network [archive]. Unless otherwise noted, the content of this page is copyrighted and licensed under the same Freedom Software license as Whonix ™ itself. (Why?)

Whonix ™ is a derivative of and not affiliated with Debian [archive]. Debian is a registered trademark [archive] owned by Software in the Public Interest, Inc [archive].

Whonix ™ is produced independently from the Tor® [archive] anonymity software and carries no guarantee from The Tor Project [archive] about quality, suitability or anything else.

By using our website, you acknowledge that you have read, understood and agreed to our Privacy Policy, Cookie Policy, Terms of Service, and E-Sign Consent. Whonix ™ is provided by ENCRYPTED SUPPORT LP. See Imprint, Contact.