Pipelined packet encapsulation and decapsulation for temporal key integrity protocol employing arcfour algorithm

Abstract

A network device includes an input circuit and a key mixing circuit. The input circuit is configured to receive i) a message and ii) a plurality of packets from a transmitting device. The message includes i) an address of the transmitting device and ii) a predetermined value for a count. Each of the plurality of packets i) is encapsulated and ii) includes the address of the transmitting device and one of a plurality of values for the count. The message is received prior to receiving the plurality of packets. The key mixing circuit is configured to generate a plurality of seeds based on the message. Each of the plurality of seeds is based on i) a predetermined key, ii) the address of the transmitting device, and iii) the predetermined value for the count. The plurality of seeds is used to decapsulate the plurality of packets.

Dependencies are inferred from the claim text.