There has been a lot of noise in the Bitcoin world this week about a new paper by Ittay Eyal and Emin Gun Sirer (“ES” for short) of Cornell, which claims that Bitcoin mining is vulnerable to attack. In a companion blog post, Sirer says unequivocally that “bitcoin is broken.” Let me explain why I […]
CITP Call for Fellows, Postdocs and Visiting Professor for 2014-15
November 1, 2013 by
The Center for Information Technology Policy is an interdisciplinary research center at Princeton that sits at the crossroads of engineering, the social sciences, law, and policy. CITP seeks Visiting Fellows and Postdoctoral Research Associates for the 2014-2015 academic year who work at the intersection of digital technology and public life, including computer science, sociology, public […]
A Court Order is an Insider Attack
October 15, 2013 by
Commentators on the Lavabit case, including the judge himself, have criticized Lavabit for designing its system in a way that resisted court-ordered access to user data. They ask: If court orders are legitimate, why should we allow engineers to design services that protect users against court-ordered access? The answer is simple but subtle: There are […]
The Linux Backdoor Attempt of 2003
October 9, 2013 by
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 […]
Silk Road, Lavabit, and the Limits of Crypto
October 3, 2013 by
Yesterday we saw two stories that illustrate the limits of cryptography as a shield against government. In San Francisco, police arrested a man alleged to be Dread Pirate Roberts (DPR), the operator of online drug market Silk Road. And in Alexandria, Virginia, a court unsealed documents revealing the tussle between the government and secure email […]
