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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Macrovision is introducing a new DRM technology for DVDs, apparently based on passive changes to the data encoded on the disc, according to a news.com article by John Borland. (The…
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Student Writing Blog: "Information Technology and the Law"
This semester, I’m teaching “Information Technology and the Law”. We’re reading a series of articles and court decisions on important techno-legal issues. I’ve created a student writing blog, on which…
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Lawrence Lessig, Unmasked
We’re watching this week’s episode of West Wing. On the TV screen, Professor Lawrence Lessig starts talking. “I know that voice,” exclaims my wife. “It’s The Hacker!” On West Wing,…
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Tagging Technology
Bruce Schneier points to a new product Smart Water. Each bottle has its own unique tag, and the water in it contains tagging elements (e.g., microdots), that will stick to…
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Copyright Education: Harder Than It Looks
This afternoon I’m going to lead a discussion among twenty-five bright Princeton students, about the basics of copyright. Why do we have copyright? Why does it cover expression and not…
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Splitting the Grokster Baby
David Post at the Volokh Conspiracy predicts, astutely, the outcome of the Grokster case. He predicts that the Supreme Court will try to split the baby by overturning the lower…
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BitTrickle
Mike Godwin notes a serious error in the recent NYT future-of-TV article: A more important problem with the article is that it gives a false impression of the normal user…
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Groundhog Day
Yesterday was Groundhog Day, the holiday. But for SunnComm, the embattled CD-DRM vendor, it may have been Groundhog Day, the movie, in which Bill Murray’s character is doomed to repeat…
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More Trouble for Network Monitors
A while back I wrote about a method (well known to cryptography nerds) to frustrate network monitoring. It works by breaking up a file into several shares, in such a…
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Show Us the Numbers
Today brings yet another story about how Hollywood’s finances are better than ever. Ross Johnson’s story (“Video Sales Abroad Are Good News in Hollywood. Shhh.”) in today’s New York Times…