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Freedom to Tinker Research and commentary on digital technologies in public life In this second installment of the “No Boundaries” series, we show how a long-known vulnerability in browsers’ built-in password managers is abused by third-party scripts for tracking on more than a thousand sites. by Gunes Acar, Steven Englehardt, and Arvind Narayanan We show how third-party scripts exploit browsers’
Freedom to Tinker Research and commentary on digital technologies in public life There’s an ongoing arms race between ad blockers and websites — more and more sites either try to sneak their ads through or force users to disable ad blockers. Most previous discussions have assumed that this is a cat-and-mouse game that will escalate indefinitely. But in a new paper, accompanied by proof-of-concept
Freedom to Tinker Research and commentary on digital technologies in public life [This is a guest post by Vitaly Shmatikov, professor at Cornell Tech and once upon a time my adviser at the University of Texas at Austin. — Arvind Narayanan.] TL;DR: short URLs produced by bit.ly, goo.gl, and similar services are so short that they can be scanned by brute force. Our scan discovered a large number of
Freedom to Tinker Research and commentary on digital technologies in public life The first complete draft of the Princeton Bitcoin textbook is now freely available. We’re very happy with how the book turned out: it’s comprehensive, at over 300 pages, but has a conversational style that keeps it readable. If you’re looking to truly understand how Bitcoin works at a technical level and have a basic
Freedom to Tinker Research and commentary on digital technologies in public life There have been rumors for years that the NSA can decrypt a significant fraction of encrypted Internet traffic. In 2012, James Bamford published an article quoting anonymous former NSA officials stating that the agency had achieved a “computing breakthrough” that gave them “the ability to crack current public encrypti
Freedom to Tinker Research and commentary on digital technologies in public life Josh wrote recently about a serious security bug that appeared in Debian Linux back in 2006, and whether it was really a backdoor inserted by the NSA. (He concluded that it probably was not.) Today I want to write about another incident, in 2003, in which someone tried to backdoor the Linux kernel. This one was defini
Freedom to Tinker Research and commentary on digital technologies in public life Today eight colleagues and I are releasing a significant new research result. We show that disk encryption, the standard approach to protecting sensitive data on laptops, can be defeated by relatively simple methods. We demonstrate our methods by using them to defeat three popular disk encryption products: BitLocker,
Freedom to Tinker Research and commentary on digital technologies in public life Remember last week’s kerfuffle over whether the movie industry could own random 128-bit numbers? (If not, here’s some background: 1, 2, 3) Now, thanks to our newly developed VirtualLandGrab technology, you can own a 128-bit integer of your very own. Here’s how we do it. First, we generate a fresh pseudorandom integer,
Freedom to TinkerResearch and commentary on digital technologies in public life By Henry Birge-Lee, Grace Cimaszewski, Liang Wang, Cyrill Krähenbühl, and Prateek Mittal “Multi-Perspective Issuance Corroboration” (or “MPIC”) is currently under discussion as an industry-wide standard by the CA/Browser Forum Server Certificate Working Group, and possibly by other Forum Working Groups in the future (i
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