Encryption/decryption device and method for a wireless local area network
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United States of America Patent
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N/A
Issued Date -
Oct 7, 2004
app pub date -
Aug 4, 2003
filing date -
Apr 3, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The encryption/decryption device of the present invention comprises a first encryption/decryption table, and electrically connects a host with a second encryption/decryption table. The content of the first and the second encryption/decryption table comprises a station identifier field, an encryption/decryption algorithm identifier field and a key field for encrypting/decrypting the frames transmitted from or to the station. The encryption/decryption device comprises a data receiving unit, a data transmitting unit, a hardware encryption/decryption unit, a first checking unit and a second checking unit. The hardware encryption/decryption unit will encrypt/decrypt a frame if it can do so, or the encryption/decryption of the frame will be performed by the host.
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