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Self arranged net mode shared key authentication and conversation key consulant method of radio LAN

A wireless local area network and shared key technology, which is applied in the field of authentication and session key negotiation between wireless terminals through pre-shared keys, can solve problems such as no authentication method, achieve high security, small amount of calculation, achieve high efficiency

Active Publication Date: 2005-01-12
ZTE CORP
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Problems solved by technology

"But the standard does not give a specific certification method

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  • Self arranged net mode shared key authentication and conversation key consulant method of radio LAN
  • Self arranged net mode shared key authentication and conversation key consulant method of radio LAN

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[0016] When the STAs of the WLAN system work in the ad hoc network mode, the shared key can be configured in each STA in advance. The configuration of the shared key can take the practice of entering a password and then mapping the password to the key. Because for ordinary users, passwords are easier to remember and process.

[0017] refer to figure 2 As shown, assuming that two wireless terminals STA1 and STA2 in the ad hoc network already have the same shared key SK, the process of shared key authentication and session key negotiation between them is,

[0018] 1. STA1 generates a secure random number N 1 .

[0019] 2. STA1 sends the random number N 1 It forms a shared key authentication request message with the cipher suite list supported by STA1 and sends it to STA2 in plain text.

[0020] 3. After receiving the shared key authentication request message from STA1, STA2 checks whether there is an algorithm supported by STA2 among the security algorithms supported by ST...

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Abstract

The method includes processing steps: request of shared cryptographic key authentication; response of shared cryptographic key authentication; acknowledgement of shared cryptographic key authentication. Through configured shared cryptographic key in advance, intercheck authentication and negotiation of session key is able to carry out between wireless terminals in self built network, thus, complicated public key certificate application and installation procedure is not needed any more. Features are: high security, small amount of calculation, and high efficiency.

Description

technical field [0001] The present invention relates to a wireless local area network (WLAN), specifically, to a wireless local area network system ad hoc network mode (or called Ad hoc mode) between wireless terminals (STA) through pre-shared keys for authentication and session encryption method of key negotiation. Background technique [0002] In May 2003, the National Broadband Wireless IP Working Group released the WLAN national standard GB15629.11. In the eighth chapter of GB15629.11, a WLAN security mechanism—Wireless Local Area Network Authentication and Privacy Infrastructure (WAPI) is proposed. [0003] WAPI mainly includes two parts: WLAN Authentication Infrastructure (WAI) and WLAN Privacy Infrastructure (WPI). Among them, the WAI mechanism realizes the two-way authentication and session key agreement between the wireless terminal STA and the wireless network in the basic (Infrastructure) mode through the elliptic curve cryptographic certificate. [0004] In ad...

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Application Information

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IPC IPC(8): H04L9/12H04L9/30
CPCH04W84/18H04W12/04H04W12/50
Inventor 赵志飞刘小刚田峰
Owner ZTE CORP
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