Tunnel direct link setup (TDLS) safety protection method based on Wireless LAN Authentication and Privacy Infrastructure (WAPI)

A technology for security protection and secure communication, which is applied in the field of wireless communication network security applications, and can solve problems such as security problems hindering large-scale applications.

Active Publication Date: 2012-07-18
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] WLAN has performance advantages such as simple deployment, strong scalability, and high b...

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  • Tunnel direct link setup (TDLS) safety protection method based on Wireless LAN Authentication and Privacy Infrastructure (WAPI)
  • Tunnel direct link setup (TDLS) safety protection method based on Wireless LAN Authentication and Privacy Infrastructure (WAPI)
  • Tunnel direct link setup (TDLS) safety protection method based on Wireless LAN Authentication and Privacy Infrastructure (WAPI)

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Embodiment Construction

[0022] The following is a description of specific embodiments of the present invention in conjunction with the drawings in the present invention, which is sufficient for those skilled in the art to understand and implement.

[0023] The embodiment of the present invention provides a method for TDLS security protection based on WAPI. Before the implementation of the present invention, it is necessary for two terminal STAs to first establish a WAPI-based security association with the same access point AP, and the identifiers of the BSS (Basic Service Set) associated with the two STAs are the same and enabled in the TDLS frame Support WAPI-based TDLS security policy. The following is the specific implementation method:

[0024] (1) Before two STAs establish TDLS, one STA acts as the TDLS initial STA (transmitter), and one STA acts as the TDLS response STA (receiver). First, the TDLS initial STA sends a TDLS exploration frame to search for STAs that need TDLS links (according to...

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Abstract

The invention provides a method for ensuring safe communication of tunnel direct link setup (TDLS) by using wireless LAN Authentication and Privacy Infrastructure (WAPI). Safe links supplied by WAPI are respectively built between stations (STA) and access points (AP); the safe authentication of each STA is ensured; when a TDLS link needs to be built between two STAs, the STA that establishes the TDLS firstly transmits a TDLS request; the TDLS request comprises the information of the STA and WAPI information elements; after receiving the TDLS request, the STA at the other side generates and saves a key according to a key kit in a negotiation, wherein the key generates two sub-keys, one is used for ensuring the safe communication of a TDLS setting frame, and the other one is used for ensuring the safe communication of the TDLS link; the STA transmits a TDLS response which contains the information of the STA; after receiving the TDLS response, the TDLS initial STA generates a key and transmits a TDLS confirmation, wherein the key also generates two sub-keys, and is same as the key generated by the response of TDLS to STA. Finally the two STA generate the same key to ensure the safety of the data on the TDLS link.

Description

technical field [0001] The invention belongs to the field of wireless communication network security applications, and designs a method for protecting tunneled direct link setup (TDLS: tunneled direct link setup) in a wireless local area network. Privacy Infrastructure) TDLS protection method. Background technique [0002] WLAN has performance advantages such as simple deployment, strong scalability, and high bandwidth, but security issues have always been one of the reasons hindering its large-scale application. The direct connection technology of the latest wireless local area network is a development hotspot, among which TDLS is a technology to realize direct connection. [0003] TDLS establishes a direct link between two STAs. When the two STAs need to exchange data, TDLS transmits the data that must be transmitted through the AP through the direct link. This method is completely transparent to the AP. Make changes to the original AP. This method can effectively impro...

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Application Information

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IPC IPC(8): H04W12/04H04W12/03H04W12/069
Inventor 龙昭华贾臻蒋贵全刘贝宋晓杰刘达明张林
Owner CHONGQING UNIV OF POSTS & TELECOMM
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