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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By now it should be clear that Diebold’s AccuVote-TS electronic voting machines have lousy security. Our study last fall showed that malicious software running on the machines can invisibly alter…
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AACS: Modeling the Battle
[Posts in this series: 1, 2, 3, 4, 5, 6, 7.] By this point in our series on AACS (the encryption scheme used in HD-DVD and Blu-ray) it should be…
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AACS: Sequence Keys and Tracing
[Posts in this series: 1, 2, 3, 4, 5, 6, 7.] This is the sixth post in our series on AACS, the encryption scheme used for HD-DVD and Blu-Ray discs.…
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AACS: Title Keys Start Leaking
[Posts in this series: 1, 2, 3, 4, 5, 6, 7.] Last week we predicted that people would start extracting the title key (the cryptographic key needed to decrypt the…
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AACS: Game Theory of Blacklisting
[Posts in this series: 1, 2, 3, 4, 5, 6, 7.] This is the fourth post in our series on AACS, the encryption scheme used for HD-DVD and Blu-Ray discs.…
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AACS: Blacklisting, Oracles, and Traitor Tracing
[Posts in this series: 1, 2, 3, 4, 5, 6, 7.] This is the third post in our discussion of AACS, the encryption scheme used for HD-DVD and Blu-Ray discs.…
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AACS: Extracting and Using Keys
[Posts in this series: 1, 2, 3, 4, 5, 6, 7.] Let’s continue our discussion of AACS (the encryption scheme used on HD-DVD and Blu-Ray discs) and how it is…
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AACS Decryption Code Released
[Posts in this series: 1, 2, 3, 4, 5, 6, 7.] Decryption software for AACS, the scheme used to encrypt content on both next-gen DVD systems (HD-DVD and Blu-ray), was…
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2007 Predictions
This year, Alex Halderman, Scott Karlin and I put our heads together to come up with a single list of predictions. Each prediction is supported by at least two of…
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2006 Predictions Scorecard
As usual, we’ll start the new year by reviewing the predictions we made for the previous year. After our surprisingly accurate 2005 predictions, we decided to take more risks having…