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The importance of Networked Control Systems (NCS) is steadily increasing due to recent trends such as smart factories. Correct functionality of such NCS needs to be protected as malfunctioning systems could have severe consequences for the controlled process or even threaten human lives. However, with the increase in NCS, also attacks targeting these systems are becoming more frequent. To mitigate attacks that utilize captured sensor data in an NCS, transferred data needs to be protected. While using well-known methods such as Transport Layer Security (TLS) might be suitable to protect the data, resource constraint devices such as sensors often are not powerful enough to perform the necessary cryptographic operations. Also, as we will show in this paper, applying simple encryption in an NCS may enable easy Denial-of-Service (DoS) attacks by attacking single bits of the encrypted data. Therefore, in this paper, we present a hardware-based approach that enables sensors to perform the necessary encryption while being robust against (injected) bit failures.
|Title of host publication||Proceedings of the 2017 IEEE International Conference on Emerging Technologies and Factory Automation (ETFA)|
|Publisher||IEEE Industrial Electronics Society|
|Number of pages||8|
|Publication status||Published - 2017|
|Event||22nd IEEE International Conference on Emerging Technologies and Factory Automation: ETFA 2017 - Grand Resort Hotel, Limassol, Cyprus|
Duration: 12 Sep 2017 → 15 Sep 2017
|Conference||22nd IEEE International Conference on Emerging Technologies and Factory Automation|
|Period||12/09/17 → 15/09/17|
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