An efficient di-chaotic diffusion based medical image cryptosystem
Joshua Caleb Dagadu, Jianping Li, Fadia Shah · 2017
Securing medical images in telemedicine applications is a challenge in recent times. In this paper, we propose a simple and efficient cryptosystem for medical images. In this scheme, two chaotic systems are used for encryption key generation; with one of the chaotic systems partly fueled by a message digest algorithm 5 hashfunction. A two-round diffusion technique is employed to produce the cipher image. Various experimental analyses including statistical and differential analyses show the scheme's robustness against various forms of security attacks.