Method for cryptographic securing of data transmission between nodes of e.g. sensor network, involves encrypting data with post session key, where data is transmitted between network nodes according to termination of data transfer session

摘要

The method involves providing a session key and a post session key according to an effected authentication of a network node (1) i.e. mobile or stationary network node, against another network node i.e. access network node. Data in a data transfer session is cryptographic encrypted with the session key, where the encrypted data is transmitted between the network nodes. The data is cryptographic encrypted with the post session key, where the data is transmitted between the network nodes according to termination of the data transfer session. Independent claims are also included for the following: (1) a network comprising nodes (2) a program comprising a set of instructions for performing a method for securing of data transmission between nodes (3) a data carrier comprising a set of instructions for performing a method for securing of data transmission between nodes.