Wireless local area network security communication method based on quantum key distribution

Abstract

The invention provides a wireless local area network security communication method based on quantum key distribution. The method comprises the following steps that: (1) identity authentication based on quantum keys is carried out; (2) quantum key negotiation is carried out; and (3) encryption is started. With the method of the invention adopted, information exchange between a faked access point and an applicant, the waste of system resources or a caused denial of service attack can be can avoided; bidirectional authentication between the applicant and an authentication server as well as between the applicant and an authenticator can be realized, and therefore, the security of the identity authentication is greatly improved; keys produced in the identity authentication can be adopted to protect message authentication in key negotiation, and therefore, attacks such as the tamper of a intermediary can be prevented; the security of key negotiation based on quantum technology is guaranteed by physical laws, and therefore, the key negotiation based on quantum technology has undecodability, and can withstand the decoding of a quantum computer with strong computational ability, and therefore, the security of a whole system can be enhanced.

Description

technical field [0001] The invention belongs to the communication field, and in particular relates to a method for implementing identity authentication and key negotiation for realizing secure communication of a wireless local area network in a power system based on quantum key technology. Background technique [0002] In the wireless local area network, the information between the applicant (the wireless access terminal STA) and the wireless access point (AP) is transmitted wirelessly, so the information between the STA and the AP is extremely easy to be intercepted, eavesdropped, tampered with and forged. It is necessary to perform encryption, authentication and other operations on the transmitted information to ensure communication security. However, IEEE802.11, the currently widely used wireless LAN communication standard, has had great hidden dangers in security since its birth. Safe and secure communication protocol. In order to enhance the data encryption and authen...

AI Technical Summary

Problems solved by technology

[0011] 1. In the identity authentication stage, it implements one-way or two-way authentication between STA and AS. STA cannot authenticate the identity of AP, and has no ability to resist the attack of fake AP.

[0012] 2. In the key agreement stage, its security is based on computing security. Once an eavesdropper has very strong computing power, such as a quantum computer, he can crack the encryption key in a short time, which threatens the communication security of the wireless LAN.

[0014] 1. Authentication and key negotiation are partly disconnected, lacking the process of key confirmation

[0015] 2. The key negotiation process between STA and AP is too simple, lacks corresponding security properties, and cannot resist common attack methods such as replay attacks and man-in-the-middle attacks

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