An authentication method and device

Abstract

An authentication method and device, the main contents of which include: when a user terminal accesses a wireless local area network (WLAN), the authentication device determines the MAC address of the medium access control; Key correspondence, find the user number and key corresponding to the MAC address; decrypt the ciphertext, and when the decrypted plaintext is the same as the found user number, send the account number and password of the user terminal to the certification authority. On the one hand, because the corresponding relationship between the MAC address and the account number and password is stored, it is possible to realize WLAN automatic authentication; The user's account and password are sent to the authentication center for authentication. Therefore, while realizing automatic authentication, the security of users logging in to the WLAN is improved.

Description

technical field [0001] The invention relates to the communication field, in particular to an authentication method and equipment. Background technique [0002] With the development of personal data communication, powerful portable data terminals and multimedia terminals have been widely used. In order to achieve the goal of enabling users to achieve data communication at any time and any place, the traditional computer network is required to develop from wired to wireless, from fixed to mobile, and from single service to multimedia. Therefore, WLAN (Wireless Local Area Network) , WLAN) technology has developed rapidly. In recent years, operators have been vigorously developing WLAN services. With the optimization of WLAN and the reduction of tariffs, more and more customers use WLAN services. This requires operators to provide customers with convenient and safe usage methods. How to provide convenient WLAN Internet access functions for the increasing number of smart phone ...

AI Technical Summary

Problems solved by technology

However, there are problems such as counterfeiting, counterfeiting, and duplication of MAC addresses. If the MAC address is obtained by an illegal user, the illegal user will modify the MAC address of his own user terminal through software, and will easily pass the authentication of the authentication server, allowing legitimate users to log in to the WLAN. reduced security

There are also problems with COOKIE authentication. First, users need to set whether to allow the website to save cookies on the machine. If the user selects "Do not allow this site to use cookies" in the IE browser settings, the WLAN server cannot write the account number and password In the cookie of the user terminal, and the IE browser can also be set to automatically delete the cookie of the user terminal after the user logs out; the cookie information of the second user is very easy to be obtained online, once obtained by an illegal user, the illegal user can use it The obtained legal user account number and password are authenticated, so there is also the problem that the security of the legal user logging in to the WLAN is reduced.

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