Title: Method and apparatus of communicating security/encryption information to a physical layer transceiver
Application Number: 200480026215 Application Date: 2004.09.30
Publication Number: 1883154 Publication Date: 2006.12.20
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H04L9/00,G06F15/16,H04K1/00
Applicant(s) Name: Cisco Tech Ind Address:
Inventor(s) Name: Yang Li-jau
Attorney & Agent: wang yi
Abstract:
     An apparatus for providing link layer security in a Physical Layer Transceiver (PHY) (Fig. 3, 305) is disclosed. In one embodiment, the apparatus may comprise analog circuitry (Fig. 3, 330) configured to interface with a data transmission medium, digital circuitry (Fig. 3, 320) configured to interface with a Media Access Controller (MAC) (Fig. 3, 310); and a crypto engine (Fig. 3, 340) coupled to the digital circuitry. Single interface and multiple interface schemes are provided to control both PHY and crypto functions. Embodiments are disclosed where the PHY controls the crypto device, and where the crypto device controls the PHY.
Time: 14
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