Patent ID: 6944688
Filing Date: 2005-09-13
Classification: H04L

Abstract:
1. A queuing system comprising: a first FIFO memory for receiving a frames comprised of a header and encrypted frame contents; a second FIFO memory for receiving the header and encrypted frame contents from the first FIFO memory, wherein the second FIFO is adapted to concurrently store a plurality of frames; and a stream cipher engine for decrypting the encrypted frame contents stored in the second FIFO memory; and wherein the frame propagates through the first FIFO to the second FIFO while it is being received; wherein after a portion of the header that includes data indicative of a lookup key for the frame is processed by the first FIFO memory and while at least a portion of the frame contents is being propagated from the first FIFO memory to the second FIFO memory, the stream cipher engine responsive to the data indicative of a lookup key performs a key lookup to decrypt the frame.