procedures to detect the illicit use of identify

摘要

So-called identifiers can be used to distinguish between different subscriber stations of a telecommunications system. By eavesdropping on the exchange of information transmitted on a telecommunications channel between a subscriber station and a central station, a manipulator may intercept the identifier and thus, by imitating the other person's identifier, make use of services of the central station. ??In order to detect the imitation of the identifier of a subscriber station in the central station, a constantly changing code rule is transmitted by the central station to form the identifier of the subscriber station or the subscriber station identifier is based on a combination of fixed and modifiable data.