A blockchain-based quantum key distribution notarization system

Abstract

The application discloses a kind of quantum key distribution storage systems based on block chain, it is related to information security technical field, including QKD security parameter acquisition module, for in the QKD session process between storage initiation party and QKD network trusted authentication node, security parameter is collected, the security parameter includes quantum bit error rate QBER, security key rate and privacy amplification contraction ratio;Quantum trust certificate generation module is used when the security parameter satisfies preset security condition;The application is structured into quantum trust certificate by the security parameter of QKD session, and is chained after being bound by quantum key message authentication code with the data to be stored, provides the chain before trust anchor guaranteed by physical law, the fact that QBER is lower than security threshold is guaranteed by the basic law of quantum mechanics, and attacker cannot forge quantum key-based message authentication code by improving the way of algorithm power, from the physical level, the source credibility of data before chaining is guaranteed.

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