| 摘要 |
A method for transmitting a pairwise master key in a wireless local area network (WLAN) access network, comprising: an access key negotiation point receives an access authentication packet transmitted by an access client, expands notice information in the access authentication packet, and transmits the expanded access authentication packet to an access authentication point; the access authentication point transmits to an authentication service end an access request packet carrying identity information of the access client, and, when an authorization success packet is received, acquires therefrom the pairwise master key, encrypts the pairwise master key on the basis of the notice information, and packages an acquired piece of cyphertext into the authorization success packet and transmits same to the access key negotiation point; and, the access key negotiation point acquires the pairwise master key, and, reconstructs and transmits to the access client an authorization success packet not comprising the pairwise master key. Also provided in embodiments of the present invention is a corresponding system. The solution prevents the problem of poor network compatibility and interface complexity caused by the transmission of the pairwise master key by the access authentication point to the access key negotiation point. |
