发明名称 |
Access authorization differentiation in a wireless access network |
摘要 |
<p>An encryption key distribution method capable of performing fast roaming by differentially distributing encryption keys in advance, according to access authorization classes, in a wireless access network and a roaming method using distributed encryption keys are provided. The encryption key distribution method comprises: receiving a command to communicate with an access point not available for communication using an encryption key currently selected in the encryption key set; determining access authorization of the access point not available for communications; selecting an encryption key from the encryption key set obtained in advance corresponding to the determined access authorization; and using the selected encryption key to encrypt a transmission message and communicate with the access point not available for communication. The method reduces the delay time, which is caused by encryption key distribution while a wireless terminal is traveling, such that roaming and a hand-off are carried out quickly and safely, and user convenience and safe transmission of data are achieved. <IMAGE></p> |
申请公布号 |
EP1379030(A2) |
申请公布日期 |
2004.01.07 |
申请号 |
EP20030254271 |
申请日期 |
2003.07.04 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
JANG, KYUNG-HUN;LEE, IN-SUN;PARK, JONG-AE |
分类号 |
G06F12/14;G06F21/62;H04L9/08;H04L9/14;H04L12/28;H04L29/06;H04W12/00;H04W84/12;(IPC1-7):H04L12/28 |
主分类号 |
G06F12/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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