Quantum Bayesian Networks

January 9, 2010

Bored Teenagers Eavesdrop On Quantum Crypto, Undetected, Using Chewing Gum Technology

Filed under: Uncategorized — rrtucci @ 10:13 pm

Eavesdropping device and students who built it. (photo from website of NTNU Quantum Hacking Group)

Check out this article:
“26C3: Researchers demonstrate brilliant quantum hack”

An excerpt:

Two researchers have shown how they can eavesdrop unnoticed on a provably secure quantum key distribution. To do so, Qin Liu and Sebastien Sauge did not of course change the laws of quantum physics. Instead, in archetypal hacker fashion, they successfully attacked the weakest point of a real world, and thus imperfect, implementation of a quantum key distribution system.

Liu and Sauge gave a live demonstration at 26C3 (26th Chaos Communication Congress), a conference organized by the Chaos Computer Club, held on Dec. 27-30, 2009 in Berlin. Here is the excellent C3 web page for their talk. The eavesdropping device was built by Prof. Johannes Skaar’s superb “Quantum Hacking Group” at the NTNU university in Norway.

My previous posts on quantum cryptography

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