By Hagen Stübing
Car-to-X (C2X) verbal exchange by way of Car-to-Car (C2C) and Car-to-Infrastructure (C2I) conversation goals at expanding street defense and site visitors potency by means of changing foresighted site visitors details. Thereby, defense and privateness are considered as an absolute prerequisite for effectively developing the C2X know-how out there.
Towards the paramount goal of masking the full ITS reference version with defense and privateness measures, Hagen Stübing develops devoted strategies for every layer, respectively. On application layer a safety structure when it comes to a Public Key Infrastructure is gifted, which gives low complexity and operational charges, whereas whilst protection and privateness constraints are preserved. On facility layer complementary protection strategies in keeping with mobility information verification are proposed, which promise effective message content material defense at a low computational complexity. On network layer a privateness protocol is gifted aiming at a construction of cryptographic combine zones via crew keys, which counterpoint privateness in the direction of an international adversary. On physical layer a method denoted as safe C2X Beamforming is gifted, which boosts privateness and protection through radiation development control.
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Extra info for Multilayered Security and Privacy Protection in Car-to-X Networks: Solutions from Application down to Physical Layer
The presented approach is focused on an enhanced organization and storing of revoked certiﬁcates. Instead of listing each and every certiﬁcate identiﬁer individually, a secrete key is added, which is used as seed during generation of the certiﬁcates. This secret key is known only to the CA and serves as revocation key to link related certiﬁcates, which reduces CRL sizes signiﬁcantly. Having knowledge on this key, allows vehicles to generate the entire set of revoked certiﬁcates, independently of the CA.
Considering the previous analysis, a vehicle can no longer be regarded separated from the driver’s identity. All, an adversary will have to do, is to establish a link between the person and the vehicle. From then on, any data emitted by the vehicle can be regarded as personal data. 1, a more detailed discussion on linkability of traces and individuals is given. 2 Security and Privacy Objectives 25 Assuming an adversary may unambiguously determine the identity behind the driver of a vehicle, several privacy threats arise.
2. , GSM/UMTS), the C2X data is considered as more privacy relevant due to its broadcast nature. Furthermore, the higher spatial and temporal resolution of the transmitted position data enables a more precise tracking of vehicles, than for cellular communication. Objectives from various stakeholders inﬂuence and constrain the privacy solution, as outlined in the following: Message Conﬁdentiality CAMs and DENMs are broadcast messages and as such do not carry conﬁdential contents. 3) usually require identiﬁcation and therefore a high conﬁdentiality of the exchanged messages.