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Submission + - Acoustic cryptanalysis (tau.ac.il)

DaBunny writes: From the summary:

Here, we describe a new acoustic cryptanalysis key extraction attack, applicable to GnuPG's current implementation of RSA. The attack can extract full 4096-bit RSA decryption keys from laptop computers (of various models), within an hour, using the sound generated by the computer during the decryption of some chosen ciphertexts. We experimentally demonstrate that such attacks can be carried out, using either a plain mobile phone placed next to the computer, or a more sensitive microphone placed 4 meters away.

Submission + - NSA Metadata Program Has Stopped Zero Attacks (nbcnews.com)

Antipater writes: According to a member of the White House panel that recently called for the NSA's metadata-collection program to be curtailed, that program has not stopped any terrorist actions at all. This runs counter to the stories we've heard for months, which claimed as many as fifty prevented attacks.

"Stone declined to comment on the accuracy of public statements by U.S. intelligence officials about the telephone collection program, but said that when they referred to successes they seemed to be mixing the results of domestic metadata collection with the intelligence derived from the separate, and less controversial, NSA program, known as 702, to intercept communications overseas."

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