Vehicular Ad-Hoc Network (VANET) which is an application of mobile area network(MANET) are one of the main areas of research since they are expected to greatly influence and improve safe driving and traffic conditions. Apart from the great benefits it offers, these networks are highly vulnerable to attacks. Due to this reason much attention is given to the security and privacy issues in VANETs. Security issues in Vehicular Ad-Hoc Networks (VANETs) are important because of its diverse implications in safety related and congestion avoidance applications. A lot of research works have been undergone to improve performance and security of this network. In this paper I review recent advances in some of the security proposals proposed by researchers in this area.

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2. A comprehensive survey on vehicular AdHoc network Saif Al-Sultan n, et. al,Journal of Network and Computer Applications
3. Efficient and Robust Pseudonymous Authentication in VANET, Giorgio Calandriello et. al, Laboratory for Computer Communications and Applications ,EPFL, Switzerland.
4. A MultiChannel VANET Providing Concurrent Safety and Commercial Services, Tony K. Mak, Kenneth,et. al. University of California.
5. Evaluation of VANET-based Advanced Intelligent Transportation Systems ,Yi Yang, Rajive Bagrodia ,
6. Mobile Systems Lab, Computer Science Department ,University of California, Los Angeles
7. An Analysis of Data Dissemination on VANET by using Content Delivery Network (CDN) technique. Nattiya Khaitiyakun and Teerapat Sanguankotchakorn of Asian Institute of Technology Pathumthani, Thailand.
8. Privacy Representation in VANET, Tracy Ann Kosa, Stephen Marsh and Khalil El-Khatib.
9. VANET Alert Endorsement Using Multi-Source Filters, Tiffany Hyun-Jin Kim, Ahren Studer et. al.
10. Detecting Incorrect Position Information using Speed and Time Span Verification in VANET, Jyoti Grover, Manoj Singh Gaur , Rakesh Kumar Tiwari and Vijay Laxmi, Malaviya National Institute of Technology,Jaipur
11. Data Aggregation and Roadside Unit Placement for a VANET Traffic Information System, Christian Lochert, Björn Scheuermann, Christian Wewetzer, Andreas Luebke and Martin Mauve, Computer Networks Research Group Heinrich Heine University ,Düsseldorf, Germany.
12. Evaluating VANET Information Retrieval Context Aware Systems using the Average Distance Measure ADM, Lobna Nassar, Mohamed Kamel, Fakhri Karray Electrical & Computer Engineering, University of Waterloo.
13. VANET-Based Approach for Parking Space Availability, Ramu Panayappan and Jayini Mukul Trivedi, CyLab / Carnegie Mellon University.
14. Analyzing the Spread of Active Worms over VANET, Syed A. Khayam and Hayder Radha, Department of Electrical & Computer Engineering, Michigan State University, East Lansing, MI 48824, USA.
15. Security Certificate Revocation List Distribution for VANET, Kenneth P. Laberteaux, Toyota Technical Center, Ann Arbor, MI, U. S. A REFERENCES and Jason J. Haas and Yih-Chun Hu, Dept. of Electrical and Computer Engineering, University of Illinois
16. — Urbana-Champaign, Urbana, IL, U. S. A.
17. Revocation Mechanism for VANET Design and Analysis of a Lightweight Certificate, Jason J. Haas, University of Illinois at Urbana-Champaign Urbana Illinois, U. S. A. Yih-Chun Hu, University of Illinois at Urbana-Champaign Urbana Illinois, U. S. A. and Kenneth P. Laberteaux, Toyota Research Institute Ann Arbor, Michigan, U. S. A.
18. Can Mobility Prediction be Compatible with Cooperative Active Safety for VANET?, Fatma Hrizi, Jérôme Härri and Christian Bonnet EURECOM, Mobile Communications Department Sophia-Antipolis, France.
19. A Practical Security Framework for a VANET-based Entertainment Service, Ki-Eun Shin, Hyoung-Kee Choi and Jongmin Jeong, Sungkyunkwan University, Suwon, South Korea.
20. Providing VANET Security Through Active Position Detection, Gongjun Yan, Gyanesh Choudhary, Michele C. Weigle, Stephan Olariu, Department of Computer Science, Old Dominion University, Norfolk, VA 23529-0162, USA, Proceedings of the fourth ACM international workshop on Vehicular ad hoc networks.
21. Proof of Concept of a Security Based on Lifetime of Communication's Pseudonyms for the VANETs, Adetundji Adigun, Boucif Amar Bensaber and Ismail Biskri, Proceedings of the second ACM international symposium on Design and analysis of intelligent vehicular networks and applications.

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