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On using TLS to secure in-vehicle networks

: Zelle, D.; Krauß, C.; Strauß, H.; Schmidt, K.


Association for Computing Machinery -ACM-:
12th International Conference on Availability, Reliability and Security, ARES 2017. Proceedings : August 29 - September 1, 2017, Università degli Studi Mediterranea di Reggio Calabria, Italy
New York: ACM, 2017
ISBN: 978-1-4503-5257-4
Art. 67
International Conference on Availability, Reliability and Security (ARES) <12, 2017, Reggio Calabria>
Conference Paper
Fraunhofer SIT ()

A trend in modern in-vehicle networks is the use of network technologies with higher bandwidth such as Automotive Ethernet. As a result, more sophisticated security technologies may be used to secure the communication. In this paper, we investigate whether the Transport Layer Security Protocol (TLS) is applicable to secure in-vehicle networks. First, we identify the security and performance requirements as well as the communication scenarios which must be supported by the TLS communication. Next, we discuss how these requirements can be realized with TLS. This also includes the discussion of the certificate management. Finally, we present and discuss our prototypical TLS implementation on a typical automotive platform and show that TLS is able to fulfill most performance requirements of the automotive industry.