Bernd Hirschler

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Clock synchronization has become one of the enabling techniques to enable real-time on both applicationand network level. One of the most promising and currently intensively discussed approaches is IEEE1588, a master slave based synchronization protocol, which is intended to be a protocol not only limited for one application use, but for many domains such(More)
This article analyzes the viability of secure tunneling for clock synchronization protocols with special respect to high-precision clock synchronization requiring hardware timestamping. It investigates whether security mechanisms introduced to protect timing information have an impact on the precision of clock synchronization. Two reference designs – one(More)
The Internet Protocol version 6 (IPv6) is expected to be one strong enabler for the smart grid. This article sets a focus on the secure transmission of IPv6 using Power Line Communication (PLC). The goal is to have a seamless, yet secure communication from the back office down to the field-level of the grid. This article analyzes how the Internet Protocol(More)
This paper presents the development of a novel joint safety and security architecture for dependable embedded time-triggered systems. While fault-tolerance properties of time-triggered protocols have been very well studied, research on security aspects for time-triggered systems have hardly been covered. Therefore, we explore system design principles which(More)
In recent years, the Internet Protocol (IP) has become a common basis for communication in several automation domains. For smart grids, it is even more beneficial because it brings a unification aspect into a field characterized by a variety of heterogeneous communication protocols which are in use today for various functions and services inside a smart(More)
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