EETE: Rohde & Schwarz has a branch that deals with security technology. Could this produce synergies associated with IoT? Security, encryption and authentication are also being intensely discussed in the IoT world.
Steffen: There are definitely synergies among our various activities, but it is not so much a matter of being able to offer a "security measurement instrument". For example, network operators have asked us to analyze exactly what smartphones apps do. Many apps communicate in the background. The question is what transmission bandwidths they use and how much network capacity they consume. The individual apps are not really coordinated and naturally require a certain transmission capacity. Even when only a few bits are transmitted, the need to connect and disconnect many times consumes a lot of resources. Network operators need to know what is happening. App behavior is also important to IT security personnel. They want to know which servers and services these apps connect to and what data they transmit.
The extensive expertise that is compiled in the Rohde & Schwarz group of companies has gone into the software in our products. It is possible to determine what kind of data a mobile phone is currently transmitting and via which servers without involving the phone user. There is demand for this on the market, for network traffic classification or how to detect anomalies, for example. The apps that tax the battery