Quantum key distribution method based on block chain

Abstract

The invention discloses a quantum key distribution method based on a block chain, which comprises the following steps that two key pools separated from two places exist, the configurations of the twokey pools are the same and are connected through public quantum channels, a quantum key distribution (QKD) protocol is called to generate key streams, and the key streams are respectively stored in corresponding positions of the two key pools; wherein the two key pools are respectively connected with respective key pool managers, and the key pool managers are used for managing the key pools, updating storage addresses in the key pools and being responsible for contacting with users; wherein the two key pool managers are connected with a block chain, and the block chain is used for recording transactions between users and the key pool managers. The invention aims to solve the problem that the existing quantum key generation and distribution efficiency is low, and improve the key distribution efficiency under the condition of ensuring the key generation and distribution safety.

Description

technical field [0001] The invention belongs to the application field of modern cryptography, in particular to a blockchain-based quantum key distribution method. Background technique [0002] Key distribution and key management are one of the most critical technologies in modern cryptography, involving many aspects of cryptography, including key generation, distribution, storage, application, etc. Many existing security applications use public key encryption algorithms to distribute key pairs. But with the rise of quantum computers and quantum computing, classical cryptographic algorithms, including symmetric encryption algorithms (such as DES, AES) and public key encryption algorithms (such as RSA, ECC), are facing huge security challenges. [0003] With the emergence of quantum cryptography, new vitality has been added to the field of information security. Quantum cryptography is the product of the combination of quantum mechanics and classical cryptography. Its security...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the problem that it is difficult to meet the needs of multiple users for applying for key pairs in the existing quantum key distribution scheme, and the problem that the key distribution efficiency is low in the existing quantum key distribution scheme, and to provide a safe, Efficient blockchain-based q

Images