| 摘要 |
An method for distributes the encrypted key in wireless LAN, this method combines the distribution course of the key with authentication course of the mobile terminal, utilizes the authentication server or the wireless gateway to manage the distribution of the key, so mobile terminal users may be roam in range greater than the range of the key manage server covers. Because the distribution of the key does not involve transmitting the key, which was not encrypted through the air interface, the method has ensured that the key is safe. In addition, the above-mentioned key distribution method does not depend on the specific authentication, therefore can use it under various kinds of authentication agreements. Finally, because AP does not need to manage user's information, the method simplified the structure of AP thus lowered costs.
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