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Security mechanisms recommended by VANET standardization bodies are not sufficient to stop authorized vehicles from sending bogus or fake messages that in the worst cases could put people's life at risk. There are efforts in evaluating the behaviour of the vehicles in VANETs, based on reputation mechanisms. However, the most of them compromise the privacy, the messages are linkable and no anonymous...
In vehicular ad hoc network (VANET), vehicles are connected in a self-organized manner to collect and share various traffic data about the road condition, accidents, traffic congestions, and other related events, This data can be used to improve the driving quality, however VANET vehicles may receive unreliable data broadcasted by malicious vehicles which may result in unsafe driving and accidents...
Carpooling, as an effective and eco-friendly travel mode, becomes a kind of public spontaneous behavior with multiple travellers sharing a vehicle to reduce individuals' travel cost, carbon emissions and traffic congestion. Although ubiquitous network access offers great convenience for travellers to find carpools, the safety becomes a big obstacle for them to accept this emerging travel mode. To...
Protection of location privacy by reducing the accuracy of location data, until a desired level of privacy (e.g., measured as k-anonymity) is reached, is a well-known concept that is typically implemented using a privacy proxy. To eliminate the risks associated with a central, trusted party, we propose a generic method to enforce k-anonymity of location data in a decentralized way, using a distributed...
In VANET each vehicle is assumed to have an on-board unit (OBU) and Road-side units (RSU) which is installed along the roads. A traffic authority (TA) and possibly some other application servers are introduced in the back end. The OBUs and RSUs convey utilizing the Dedicated Short Range communications (DSRC) convention over the remote channel while the RSUs, TA, and the application servers impart...
Electric vehicle is the automobile that powered by electrical energy stored in batteries. Due to the frequent recharging, vehicles need to be connected to the recharging infrastructure while they are parked. This may disclose drivers' privacy, such as their location that drivers may want to keep secret. In this paper, we propose a scheme to enhance the privacy of the drivers using anonymous credential...
Messages spreading inside vehicular ad hoc networks (VANETs) generally need to achieve the property of verifiability and content integrity, while preserving user privacy. Otherwise, VANETs will either fall into chaos, or prevent users from embracing it. To achieve this goal, we propose a protocol, which contains a priori and posteriori countermeasures, to guarantee these features. The a priori process...
The concept of Electric Vehicle as Power Energy Storage has gained much attention from the research community and market recently. The increasing capacity of the power storages in the electric vehicles (EV) motivates this concept and makes it more feasible. However, the privacy of the customers can be compromised by tracing the stations that an EV has been connected to during a period of the time...
In this paper, we present VLSP, a Vehicular Location based Service with Privacy grantees. In VLSP, we assume the service provider is untrusted and users do not have pre-established social relationships with each other, we use standard cryptographic primitives, Broadcast Encryption (BE) and Attribute-based Encryption (ABE) to provide privacy guarantees. By using VLSP, we are able to protect users'...
Security attributes of a Vehicular ad hoc network (VANET) include confidentiality, integrity, authentication, non-repudiation (liability), revocation and privacy. Privacy, having characteristics opposing to the rest of the attributes, makes design of a security architecture quite difficult. A commonly used solution is to have a large number of temporary certificates (i.e., pseudonyms) to achieve these...
Privacy preserving in location-based service (LBS) has been an important issue in Vehicular Ad hoc Network (VANET). Traditional k-anonymity algorithm dealing with location privacy protecting problem does not consider vehicle's mobility and inner collaborator. In this paper, we propose a new algorithm which uses dynamic and mobile aware anonymous peer selecting algorithm to improve the anonymity and...
We propose a vehicular network trust model that integrates cryptography-based entity trust and email-based social trust. The entity trust provides security protections such as origin integrity, data integrity, and confidentiality. The social trust provides a level of belief on the data transmitted by an entity. To achieve the email-based social trust, we require each user to run an automated agent...
Privacy, authentication, confidentiality and non repudiation are the most desired security attributes for all vehicular ad hoc network (VANET) applications. A lot of solutions have been presented to address these issues. However, they are mostly dependent on centralized certificate architecture and some sort of hardware-based security. These solutions are expensive to carry out and lack the incentive...
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