Inter-vehicle communications disclose rich information about vehicle whereabouts. Pseudonymous authentication secures communication while enhancing user privacy. To enhance location privacy, cryptographic mix-zones are proposed where vehicles can covertly update their credentials. But, the resilience of such schemes against linking attacks highly depends on the geometry of the mix-zones, mobility patterns, vehicle density, and arrival rates. In this poster, we propose “mix-zones everywhere”, a cooperative location privacy protection scheme to mitigate linking attacks during pseudonym transition. Time-aligned pseudonyms are issued for all vehicles to facilitate synchronous pseudonym updates. Our scheme thwarts Sybil-based misbehavior, strongly maintains user privacy in the presence of honest-but-curious system entities, and is resilient against misbehaving insiders.
Poster: Mix-Zones Everywhere: A Dynamic Cooperative Location Privacy Protection Scheme
2018-12-01
150756 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Cooperative Location Privacy in Vehicular Networks: Why Simple Mix-zones are not Enough
BASE
|Cooperative Location Privacy in Vehicular Networks : Why Simple Mix-zones are not Enough
BASE | 2021
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