REP: Location Privacy for VANETs Using Random Encryption Periods

Abstract

It is well recognized that security is vital for reliable operation of vehicular ad-hoc networks (VANETs). Location privacy is one of the main security challenges in VANETs, which is concerned with preventing an attacker from tracking a specific vehicle. In this paper, we propose a novel location privacy preservation scheme for VANETs using random encryption periods (REP). REP is based on a privacy preserving group communication protocol, which has a conditional full statelessness property. In addition, REP ensures that the requirements to track a vehicle are always violated. By conducting detailed analysis and simulation, REP is demonstrated to be reliable, efficient, and scalable.

Security and Privacy in Location-Based Services for Vehicular and Mobile Communications: An Overview, Challenges, and Countermeasures

“…They introduce complementary security mechanisms that can meet the security requirements of location privacy. The proposed privacy scheme is based on random encryption period (REP) [81]. This approach relies on a security threshold scheme and a probabilistic key distribution.…”

“…The authentication schemes [79], [87], [81] that provide location privacy pay more attention to optimising the communication cost. These schemes focus on the authentication of messages in a timely manner.…”

Urban pseudonym changing strategy for location privacy in VANETs

“…Instead of restricting the CMIX zone at the road intersection, Ying et al (2013) proposed dynamic mix-zone For location privacy in vehicular networks (DMLP) to dynamically create a CMIX zone i.e., the vehicle establishes a CMIX zone where and when it is needed. Similarly, Wasef and Shen (2010) suggested random encryption periods (REPs). When the vehicle decides to change its pseudonym, it sends a request to its neighbours for starting a REP. During a REP, the safety messages are encrypted using a shared group key.…”

A survey on security, privacy and anonymity in legal distribution of copyrighted multimedia content over peer-to-peer networks

“…Hence, devising security, privacy and anonymity protection mechanisms for P2P systems poses challenges for researchers and software engineers. According to Balfe et al [Balfe et al, 2004] and Wasef and Shen [Wasef and Shen, 2009], the main challenge in creating P2P systems stems from the perceived need of providing anonymity for users of the system and the growing need of offering robust access control, confidentiality and data integrity. Illegitimate attacks in which malevolent parties may assume multiple identities undermine the efficiency of P2P systems, and characterize a fundamental security threat [Piscitello, 2002].…”