December 22, 2024

Archives for 2014

Bitcoin Mining Now Dominated by One Pool

The big news in the Bitcoin world, is that one entity, called GHash, seems to be in control of more than half of all of the mining power. A part of Bitcoin’s appeal has been its distributed nature: the idea that no one party is in control but the system operates through the cooperative action […]

Encryption as protest

As a computer scientist who studies Privacy-Enhancing Technologies, I remember my surprise when I first learned that some groups of people view and use them very differently than I’m used to. In computer science, PETs are used for protecting anonymity or confidentiality, often via application of cryptography, and are intended to be bullet-proof against an […]

Why King George III Can Encrypt

[This is a guest post by Wenley Tong, Sebastian Gold, Samuel Gichohi, Mihai Roman, and Jonathan Frankle, undergraduates in the Privacy Technologies seminar that I offered for the second time in Spring 2014. They did an excellent class project on the usability of email encryption.] PGP and similar email encryption standards have existed since the early […]

If Robots Replace Lawyers, Will Politics Calm Down?

[TL;DR: Probably not.] A recent essay from law professor John McGinnis, titled “Machines v. Lawyers,” explores how machine learning and other digital technologies may soon reshape the legal profession, and by extension, how they may change the broader national policy debate in which lawyers play such key roles. His topic and my life seem closely related: After law […]

Wickr: Putting the “non” in anonymity

[Let’s welcome new CITP blogger Pete Zimmerman, a first-year graduate student in the computer security group at Princeton. — Arvind Narayanan] Following the revelations of wide-scale surveillance by US intelligence agencies and their allies, a myriad of services offering end-to-end encrypted communications have cropped up to take advantage of the increasing demand for privacy from surveillance. […]