Conditional beam splitting attack on quantum key distribution

Abstract

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 than the conventional beam spitting attack, achieving a performance similar to the, powerful but currently unfeasible, photon number splitting attack. The implementation of the conditional beam splitting attack, based solely on linear optical elements, is well within reach of current technology.

Submitted to Phys. Rev. A

References in corpus (1)

• Removal of a single photon by adaptive absorption

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