Key consultation method and device for user' access to WLAN

A key negotiation and user technology, which is applied in the field of key negotiation of user access to WLAN, can solve problems such as poor user access experience, and achieves benefits such as promotion, exemption from application and request for access passwords, and elimination of publishing pre-sharing. The effect of the key's work

Active Publication Date: 2016-05-11
CHINA MOBILE COMM GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] The purpose of the present invention is to provide a key negotiation method and device for users to access WLAN, so as to solve the problem that when users access to WLAN environment, the process of asking for access password makes the user access experience poor

Method used

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  • Key consultation method and device for user' access to WLAN
  • Key consultation method and device for user' access to WLAN
  • Key consultation method and device for user' access to WLAN

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Embodiment Construction

[0078] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0079] In the present invention, if a user accesses a public WLAN environment with a password in the prior art, he needs to input the password without knowing the password, which not only reduces the user's willingness to access, but also reduces the user's experience; if the user accesses In a public WLAN environment without a password, the problem that user communication cannot be truly encrypted, a key negotiation method and device for user access to WLAN is provided, and a temporary key is automatically randomly generated through a WLAN terminal, which is consistent with the goal of WLAN access After the device successfully negotiates the temporary key, the WLAN terminal automatically uses the random temporary key as the password for the WLAN terminal...

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Abstract

The present invention provides a key consultation method and device for user' access to a WLAN. The method includes the following steps that: a key negotiation request is sent to a target device which is accessed to the WLAN, wherein the target device is a wireless access point (AP) or a key negotiation server connected with the AP; a response message for responding to the key negotiation request is received from the target device, wherein the response message carries the public key of the target device accessed to the WLAN; after the response message is received, a temporary key is randomly generated, the temporary key is encrypted by using the public key, so that a first ciphertext can be generated, and the first ciphertext is sent to the target device, wherein the temporary key is used for the password of a WLAN terminal to access to a WLAN environment; processing is carried out according to the temporary key, so that a first processing numerical value is obtained; a second processing numerical value from the target device is obtained, wherein the second processing numerical value is a numerical value which is obtained by the target device by performing processing according to the temporary key in the first ciphertext; and if the first processing numerical value is matched with the obtained second processing numerical value, confirmation information indicating a key negotiation success is sent to the target device.

Description

technical field [0001] The invention relates to the WLAN field, in particular to a method and device for negotiating a key for users to access a WLAN. Background technique [0002] Based on IEEE802.11, WLAN is a mobile wireless data network, used for communication in "hot spot" places, and can provide high bandwidth in a small area. Typical application scenarios include conference centers, airports, restaurants, cafes and entertainment venues, etc. Public places. [0003] The current WLAN technology is divided into two categories according to whether the communication data is encrypted on the air interface: one is the open system (OpenSystem) that does not encrypt the air interface; (abbreviation for Wi-Fi Protected Access, Wi-Fi Protected Access) / WPA2, where WEP (abbreviation for Wired Equivalent Privacy, Wired Equivalent Protocol) has a lower encryption strength, and WPA / WPA2 has a higher encryption strength. [0004] For an open system WLAN, users can connect to the WLA...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04W12/04H04W12/0431
Inventor 杭小勇阎军智
Owner CHINA MOBILE COMM GRP CO LTD
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