Over 9000 jurisdictions (counties and states) in the U.S. run elections with a variety of voting machines: optical scanners for paper ballots, and direct-recording “touchscreen” machines. Which ones of them can be hacked to make them cheat, to transfer votes from one candidate to another? The answer: all of them. An attacker with physical access […]
Archives for 2016
Bitcoin’s history deserves to be better preserved
September 15, 2016 by
Much of Bitcoin’s development has happened in the open in a transparent manner through the mailing list and the bitcoin-dev IRC channel. The third-party website BitcoinStats maintains logs of the bitcoin-dev IRC chats. [1] This resource has proved useful is linked to by other sources such as the Bitcoin wiki. When reading a blog post […]
All the News That’s Fit to Change: Insights into a corpus of 2.5 million news headlines
September 14, 2016 by
[Thanks to Joel Reidenberg for encouraging this deeper dive into news headlines!] There is no guarantee that a news headline you see online today will not change tomorrow, or even in the next hour, or will even be the same headlines your neighbor sees right now. For a real-life example of the type of change […]
Improving Bitcoin’s Privacy and Scalability with TumbleBit
September 13, 2016 by
Last week we unveiled TumbleBit, a new anonymous payments scheme that addresses two major technical challenges faced by Bitcoin today: (1) scaling Bitcoin to meet increasing use, and (2) protecting the privacy of payments made via Bitcoin. Our proof-of-concept source code and a pre-print of the latest version of our paper were both posted online […]
Routing Detours: Can We Avoid Nation-State Surveillance?
August 30, 2016 by
Since 2013, Brazil has taken significant steps to build out their networking infrastructure to thwart nation-state mass surveillance. For example, the country is deploying a 3,500-mile fiber cable from Fortaleza, Brazil to Portugal; they’ve switched their government email system from Microsoft Outlook to a state-built system called Expresso; and they now have the largest IXP […]
