CITP Blog is hosted by Princeton University’s Center for Information Technology Policy, a research center that studies digital technologies in public life. Here you’ll find comment and analysis from the digital frontier, written by the Center’s faculty, students, and friends.
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[UPDATE (April 3, 2014): We’ve found an error in our paper. In the threshold signature scheme that we used, there are restrictions on the threshold value. In particular if the…
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Reflecting on Sunshine Week
Last Wednesday evening, I attended the D.C. Open Government Summit: Street View, which took place at the National Press Club in conjunction with Sunshine Week. The Summit was sponsored by…
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Algorithms can be more accountable than people
At an academic meeting recently, I was surprised to hear some social scientists accept as obviously correct the claim that involving “algorithms” in decision-making, instead of sticking with good old-fashioned…
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Why Dorian Nakamoto Probably Isn't Satoshi
When Newsweek published its cover story last week claiming to have identified the creator of Bitcoin, I tweeted that I was reserving judgment on their claim, pending more evidence. At…
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FOIA: When the Exemptions Swallow the Rule
I’ve been researching and writing over the last few years on privately ordered—what the government calls “non-regulatory”—approaches to online IP enforcement. The gist of this approach is that members of…
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9 Problems of Government Hacking: Why IT-Systems Deserve Constitutional Protection
Governments around the world are increasingly hacking into IT-systems. But for every apparent benefit, government hacking creates deeper problems. Time to unpack 9 of them, and to discuss one unique…
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“E agora José?” The current status of Marco Civil da Internet
I hope non-Brazilian readers will forgive me, but I could not find a better expression to summarize the current situation of the Brazilian Marco Civil da Internet. “E agora, José?”…
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Are User Identification Networks the Future of Commercial Bitcoin Transactions?
With 12.3 million bitcoins mined to date, the total value of bitcoins has reached $9.975 billion US dollars. While this may pale in comparison to the $1.23 trillion US dollars…
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Understanding Bitcoin's transaction malleability problem
In recent days, several Bitcoin exchanges have suspended certain kinds of payments due to “transaction malleability” issues. There has been a lot of talk about why this happened, and some…