This paper represents a review of privacy preserving techniques in wireless sensor network. Wireless sensor networks are not secure. To preserve privacy of wireless sensor network various techniques are discovered. A lot of work has been done to address challenges faced to preserve privacy of wireless sensor network. In this pa-per we represent a research on privacy preserving tech-niques used in location privacy, data privacy and net-work privacy. This paper should provide help for fur-ther research in privacy preservation in wireless sensor network
Keywords: Context Privacy, Data Privacy, Source Location Privacy
