Patent ID: 8605896

Claim:
Device for processing datastreams in a communications unit with two mutually-separate data-processing regions, which provide at least two separate message paths, which are connected respectively to a message transmitter and respectively to a message receiver, the device comprising: an encoding module in each message path connected both to a first data-processing region and to a second data-processing region, and a distribution unit connected to the message paths of the second data-processing region and to all encoding modules of the corresponding message paths for the targeted distribution of messages, the distribution unit arranged to, within the second data-processing region, distribute messages of the first data-processing region and messages of the second data-processing region in a targeted manner to the various message paths, wherein test rules for data exchange, which is performed within the second data-processing region between the various message paths of the first data-processing region, are provided in each encoding module, and wherein each encoding module marks each message in its corresponding message path for a data exchange to a specific message path within the second data-processing region on the basis of the test rules and the degree of confidentiality of that message depending on the encoding method used for that message in that encoding module.