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[wlug] Scientists Extract RSA Key From GnuPG Using Sound of CPU

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Peter Reutemann fracpete@w...
Thu Dec 19 13:17:10 NZDT 2013

"In their research paper titled RSA Key Extraction via Low-Bandwidth
Acoustic Cryptanalysis, Daniel Genkin, Adi Shamir and Eran Tromer et
al. present a method for extracting decryption keys from the GnuPG
security suite using an interesting side-channel attack. By analysing
the acoustic sound made by the CPU they were able to extract a
4096-bit RSA key in about an hour (PDF). A modern mobile phone placed
next to the computer is sufficient to carry out the attack, but up to
four meters have been successfully tested using specially designed

-- source:

Cheers, Peter
Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ          Ph. +64 (7) 858-5174

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