METHOD OF AUTHENTICATING WIRELESS LAN BETWEEN ACCESS POINT AND STATION, AND WIRELESS LAN COMMUNICATION METHOD

摘要

PPROBLEM TO BE SOLVED: To reduce a risk that a secret key such as an authentication key is decoded when a station (STA) and an access point (AP) are authenticated. PSOLUTION: A secret key common to the STA and the AP is uniquely generated beforehand, a challenge text is generated at the AP based on an access request from the STA, encrypted by the secret key and transmitted to the STA. At the STA, the encrypted challenge text is decoded by the secret key, further encrypted by a WEP key and returned to the AP. At the AP, the received encrypted challenge text is decoded by the WEP key to confirm coincidence between the decoded challenge text and and the challenge text transmitted from the STA. PCOPYRIGHT: (C)2007,JPO&INPIT