In this paper, the authors highlight the security needed door transmission of data on a wireless network, with the technology moving forward wireless communications has grown enormously. It is necessary to provide security for wireless data transfer as it is more vulnerable to the security attacks. 70% of the online data transfer is in the images this implies it is important to provide security to text as well as images. Images have large data size and also has real time constraints problem hence the same cipher cannot be applied to encrypt images and text.