[Resource Topic] 2009/082: The Case for Quantum Key Distribution

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Title:
The Case for Quantum Key Distribution

Authors: Douglas Stebila, Michele Mosca, Norbert Lütkenhaus

Abstract:

Quantum key distribution (QKD) promises secure key agreement by using quantum mechanical systems. We argue that QKD will be an important part of future cryptographic infrastructures. It can provide long-term confidentiality for encrypted information without reliance on computational assumptions. Although QKD still requires authentication to prevent man-in-the-middle attacks, it can make use of either information-theoretically secure symmetric key authentication or computationally secure public key authentication: even when using public key authentication, we argue that QKD still offers stronger security than classical key agreement.

ePrint: https://eprint.iacr.org/2009/082

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