674 citations
5 papers · 2 filters
From Quantum Cheating to Quantum Security
Daniel Gottesman, Hoi-Kwong Lo
For thousands of years, code-makers and code-breakers have been competing for supremacy. Their arsenals may soon include a powerful new weapon: quantum mechanics. We give an overvi…
Conditional beam splitting attack on quantum key distribution
John Calsamiglia, Stephen M. Barnett, Norbert Lütkenhaus
We present a novel attack on quantum key distribution based on the idea of adaptive absorption [calsam01]. The conditional beam splitting attack is shown to be much more efficient…
Removal of a single photon by adaptive absorption
John Calsamiglia, Stephen M. Barnett, Norbert Lütkenhaus +1
We present a method to remove, using only linear optics, exactly one photon from a field-mode. This is achieved by putting the system in contact with an absorbing environment which…
Proof of security of quantum key distribution with two-way classical communications
Daniel Gottesman, Hoi-Kwong Lo
Shor and Preskill have provided a simple proof of security of the standard quantum key distribution scheme by Bennett and Brassard (BB84) by demonstrating a connection between key…
Proof of unconditional security of six-state quantum key distribution scheme
Hoi-Kwong Lo
We prove the unconditional security of the standard six-state scheme for quantum key distribution (QKD). We demonstrate its unconditional security up to a bit error rate of 12.7 pe…