Real time implementation of image cryptography using advanced encryption standard

Security in transmission storage of digital images has its importance in today's image communications and confidential video conferencing. Due to the increasing use of images in industrial process, it is essential to protect the confidential image data from unauthorized access. Advanced Encryption Standard (AES) is a well known block cipher that has several advantages in data encryption. However, it is not implemented in real-time applications such as image, video or audio cryptography. In this paper, we present a modification to the Advanced Encryption Standard (MAES) to reflect a high level security and better encryption for image. The modification is done by adjusting the using Block RAM which can be implemented using megawizard function in Quartus IDE. Detailed results in terms of security analysis and implementation are given. Experimental results verify and prove that the proposed modification to image cryptosystem is highly secure from the cryptographic viewpoint.