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Key synchronization mechanism for wireless lan (wlan)

  • US 20060133614A1
  • Filed: 07/27/2004
  • Published: 06/22/2006
  • Est. Priority Date: 07/29/2003
  • Status: Active Grant
First Claim
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1. A key synchronization method for a wireless network comprising:

  • setting a current encryption key and an old encryption key at an access point in the wireless network;

    generating a new encryption key at the access point;

    resetting the current encryption key to equal the newly generated encryption key;

    resetting the old encryption key to equal an encryption key being used by a station in communication with the access point;

    communicating the new encryption key to the station in an encrypted form using the old encryption key; and

    indicating a decryption failure for a data frame received from the station when the encryption key used by the station does not match the current encryption key, wherein a data frame that failed to decrypt using the current encryption key is decrypted using the old encryption key.

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