Signing And Validation Of Session Initiation Protocol Routing Headers

Abstract: A method of processing a Session Initiation Protocol (SIP)message, the method comprising: (a) receiving a SIP request at a SIP node, the SIP request including a message header; (b) generating a signature based upon at least a portion of the message header; (c) generating a SIP node header entry; and (d) inserting the signature into the SIP node header entry.

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