Information Geometric Security Analysis of Differential Phase Shift Quantum Key Distribution Protocol

Abstract

This paper analyzes the information-theoretical security of the Differential Phase Shift (DPS) Quantum Key Distribution (QKD) protocol, using efficient computational information geometric algorithms. The DPS QKD protocol was introduced for practical reasons, since the earlier QKD schemes were too complicated to implement in practice. The DPS QKD protocol can be an integrated part of current network security applications, hence it's practical implementation is much easier with the current optical devices and optical networks. The proposed algorithm could be a very valuable tool to answer the still open questions related to the security bounds of the DPS QKD protocol.

42 pages, 34 figures, Journal-ref: Security and Communication Networks (John Wiley & Sons, 2012), presented in part at the IEEE Int. Conference on Network and Service Security (IEEE N2S 2009)

References in corpus (4)

• Distillation of secret key and entanglement from quantum states
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• Sequential Attack with Intensity Modulation on the Differential-Phase-Shift Quantum Key Distribution Protocol
• Effect of detector dead-times on the security evaluation of differential-phase-shift quantum key distribution against sequential attacks