The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2007
Filed:
Dec. 12, 2001
Diana M. Chapman, Kanata, CA;
Diana M. Chapman, Kanata, CA;
Nortel Networks Limited, Montreal, CA;
Abstract
A method and apparatus for data transmission between a sending node and a receiving node is provided. The sending node has a transmission executor for sending a decrypted message as a plurality of packets. When the encrypted message includes a message authentication code (MAC), the sending node sets an indicator in the packet that the result of MAC authentication will be sent later. The packet is sent from the sending node to the receiving node in a pipeline mode. The receiving node has buffer, and a preprocessor for preprocessing the payload of the packet. If the operation requested or the preprocessing required by the payload does not require MAC authentication, the requested operation/preprocessing will be executed. Otherwise, the receiving node defers the execution until the corresponding positive notification of MAC authentication is received from the sending node. Handling of negative MAC authentication is policy based at the receiving node.