A method and arrangement for the secure transmission of data in a a longer a method of using a communication system

摘要

In a multihop - network are encrypted packets for dispatch in header data and payload data divided. The header - information, especially the multihop - information, are separated from the user data in encrypted form, so that each network - node for transmission of a packet only the header has to decrypt. For the separate encryption are in this case of the header and the user data independently of one another in such a way to the hardware of the respective device for the encryption, as if they would be complete packets. As a result, a hardware accelerated encryption of header data and payload data makes it possible with different keys. Furthermore, the header in this way an integrity protection.