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Perfect eavesdropping on a quantum cryptography system
cryptography system Quantum Physics
2010/11/8
The stated goal of quantum key distribution (QKD) is to grow a secret key securely between two parties with a minimum of additional assumptions. The number of assumptions has been continuously reduced...
Securing Dynamic Distributed Storage Systems against Eavesdropping and Adversarial Attacks
Eavesdropping Adversarial Attacks
2010/12/6
We address the problem of securing distributed storage systems against eavesdropping and adversarial attacks. An important aspect of these systems is node failures over time, ecessitating, thus, a rep...
Eavesdropping of two-way coherent-state quantum cryptography via Gaussian quantum cloning machines
two-way coherent-state quantum cryptography Gaussian quantum cloning machines
2010/4/9
We consider one of the quantum key distribution protocols recently introduced in Ref. [Pirandola et al., Nature Physics 4, 726 (2008)]. This protocol consists in a two-way quantum communication betwee...
Quantum Resonance near Optimal Eavesdropping in Quantum Cryptography
Quantum Optimal Eavesdropping Quantum Cryptography
2010/4/7
We find a resonance behavior in the disturbance when an eavesdropper chooses a near-optimal strategy intentionally or unintentionally when the usual Bennett-Brassard cryptographic scheme is performed ...
Eavesdropping on ET?
Astrophysics Meeting
2007/2/6
SEATTLE -- On Wednesday, January 10, here at the American Astronomical Society Meeting, theorist Dr. Avi Loeb from Harvard Smithsonian Center for Astrophysics led a press conference on the search for ...