SECURITY SYSTEM FOR APPARATUSES IN A NETWORK

摘要

The invention relates to a security system for networks, comprising a first portable unit ( 1 ) with a memory ( 3 ) for storing a worldwide unambiguous key record ( 4 ) provided for short-range information transmission of the key record ( 4 ). At least one apparatus ( 2 ) of the network is provided with a receiving unit ( 7 ) comprising a receiver ( 9 ) for receiving the key record ( 4 ) and an evaluation component ( 11 ) of the apparatus for storing, processing and/or passing on the key record ( 4 ) or a part of the key record to a second component. Due to the key record, the apparatuses in the network acquire a secret shared key by means of which the encryption and decryption of the transmitted useful data and/or the authentication is performed.