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Security of Quantum Key Distribution
Horace Yuen
The security issues facing quantum key distribution (QKD) are explained, herein focusing on those issues that are cryptographic and information theoretic in nature and not those ba…
Security Issues Associated With Error Correction And Privacy Amplification In Quantum Key Distribution
Horace Yuen
Privacy amplification is a necessary step in all quantum key distribution protocols, and error correction is needed in each except when signals of many photons are used in the key…
What The Trace Distance Security Criterion in Quantum Key Distribution Does And Does Not Guarantee
Horace Yuen
Cryptographic security of quantum key distribution is currently based on a trace distance criterion. The widespread misinterpretation of the criterion as failure probability and al…
Simple explanation on why QKD keys have not been proved secure
Horace Yuen
A simple counter-example is given on the prevalent interpretation of the trace distance criterion as failure probability in quantum key distribution protocols. A summary of its ram…
Some Physics And System Issues In The Security Analysis Of Quantum Key Distribution Protocols
Horace P. Yuen
In this paper we review a number of issues on the security of quantum key distribution (QKD) protocols that bear directly on the relevant physics or mathematical representation of…
Can Quantum Key Distribution Be Secure
Horace P. Yuen
The importance of quantum key distribution as a cryptographic method depends upon its purported strong security guarantee. The following gives reasons on why such strong security g…