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Vehicular Ad hoc NETworks (VANETs) are the promising approach to provide safety and other applications to the drivers as well as passengers. It becomes a key component of the intelligent transport system. A lot of works have been done towards it but security in VANET got less attention. In this paper, the authors have discussed about the VANET and its technical and security challenges. They have also discussed some major attacks and solutions that can be implemented against these attacks. They have compared the solution using different parameters. Lastly they have discussed the mechanisms that are used in the solutions.
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