Patent ID: 7281128
Filing Date: 2007-10-09
Classification: H04L

Abstract:
1. A method for secure network communication during an existing session, comprising the acts of: receiving a server request; acquiring a current client-side session key; generating and adding a next step session key to the server request; updating a session counter; adding the updated session counter to the server request; encrypting the server request with the current client-side session key, the encrypted server request including the added current client-side session key and the added undated session counter; sending the encrypted server request; the sent encrypted server request including the added current client-side session key and the added updated session counter; storing the next step session key to be used as a current client-side session key used to encrypt the subsequent server request; acquiring a current server-side session key; decrypting the server request with the current server-side session key; comparing the updated session counter with a last stored session counter; and acting on the server request only if the updated session counter exceeds the last stored session counter.