A security assessment method and device for a quantum secure communication system

Abstract

The invention discloses a security evaluation method and apparatus of a quantum secret communication system. The method comprises the following steps: obtaining light source information of the quantumsecret communication system; and judging whether the quantum secret communication system has photon number separation attack resistance according to the light source information, and generating security evaluation information of the quantum secret communication system. According to the security evaluation method and apparatus of the quantum secret communication system provided by the embodiment of the invention, security evaluation is performed on the quantum secret communication system by using the light source information of the quantum secret communication system, and the problem of lack of security evaluation of the quantum secret communication system in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of quantum communication, in particular to a security evaluation method and device for a quantum secure communication system. Background technique [0002] For a cryptosystem, the two most important parts are the algorithm and the key, and the algorithm part is usually public, so the security of the cryptosystem mainly depends on the security of the key. If the attacker has mastered the key of the cryptosystem, then the cryptosystem is not secure. Therefore, how to obtain the security key has become one of the important subjects of cryptography and secure communication. [0003] In order to obtain security keys and effectively manage them, in recent years people have turned to using the characteristics of quantum physics to obtain and manage keys. According to the physical characteristics of quantum mechanics, the quantum key distribution protocol transmits the quantum state of encoded information between ...

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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a security assessment method and device for a quantum security communication system to solve the problem of lack of security assessment of the quantum security communication system itself in the prior art

[0007] The security assessment method of the quantum security communication system provided by the embodiment of the present invention uses the light source information of the quantum security communication system to make a security assessment of the quantum security communication system, and solves the problem that the prior art lacks the security assessment of the quantum security communication system itself

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