International Journal of Advance Research in Science and Engineering (IJARSE)
In the mobile computing technology, mobile devices like Smartphones and tablets were replaces personal computers by combining network connectivity, mobility and software functionality. Vehicular cloud computing also increases its popularity. Which is similar to the mobile cloud computing. There are large numbers of nodes in cloud computing, so there is more chance of leakage of data or information from the attacker. The paper is to identify and analyze a number of security challenges and potential privacy threats in clouds, identify security challenges that are specific to clouds, e.g. challenges of authentication of high mobility, scalability and the complexity of establishing trust relationships among multiple nodes.