EXTENSION OF SSL/TLS FOR QUANTUM CRYPTOGRAPHY

Abstract

SSL/TLS is the protocol that is used for the vast majority of secure transactions over the Internet. However, this protocol needs to be extended in order to create a promising platform for the integration of quantum cryptography (QC) into the Internet infrastructure. This paper presents a novel extension of SSL/TLS that significantly facilitates such type of integration. This extended version of SSL/TLS is called QSSL (Quantum SSL). During the development of QSSL, a concentration has been made on the creation of a simple, efficient, general, and flexible architecture that enables the deployment of practical quantum cryptographic-based security applications. Indeed, QSSL efficiently supports unconditionally secure encryption (one-time pad) and/or unconditionally secure authentication (based on universal hashing). A simplified version of QSSL based on BB84 (Bennett-Brassard 84) quantum key distribution (QKD) protocol has been implemented and experimentally tested. This has enabled us to experimentally assess our protocol design based on software simulation of the quantum channel events used for QKD.