Security of EPR-based Quantum Cryptography against Incoherent Symmetric Attacks
arXiv:quant-ph/0103058 · doi:10.1088/0305-4470/34/35/317
Abstract
We investigate a new strategy for incoherent eavesdropping in Ekert's entanglement based quantum key distribution protocol. We show that under certain assumptions of symmetry the effectiveness of this strategy reduces to that of the original single qubit protocol of Bennett and Brassard.
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