| 摘要 |
A wireless LAN system includes a base station, a first terminal station that is permanently connected to the base station, and a second terminal station that is temporarily connected to the base station. The base station and the first terminal station perform wireless communications by using a permanent encryption key. The base station and the second terminal station perform wireless communications by using a temporary encryption key. The temporary encryption key is invalidated, for example, when a predetermined time has elapsed.
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