Abstract
The privacy of digital contents is one of the most important issue of the digitally advanced world. The transmission of online information is increasing immensely from last one decade. As the technology evolving with the passage of time, the secrecy of digital information is one of the unavoidable problem. The secrecy of information can be achieved through different encryption algorithms. In this article, our aim is to introduce an innovative technique for an image encryption to extend the advanced encryption standard (AES) to the Galois field of any characteristic. With the new improvement, all four steps in basic algorithm with binary characteristic is modified accordingly. We have extended number of possibilities in our proposed substitution boxes which imply, we added more confusion capabilities and generalized the existing concepts. Moreover, we have applied the anticipated scheme to digital image encryption. We have utilized standard statistical to verify the robustness of our suggested technique for encrypted image.