A Study of Multilevel DNA Cryptosystem for Medical Images

Abstract

The advancement in wireless communication networks like 5G and enhancement in bandwidth, leads to rapid development in telemedicine and e-Health services. These services are increasingly being exploited in geographically expanded areas. Where accessibility of the health services are tremendously diminished or even non-existent. The practitioner or medical experts and patient are not physically in communication and their interactions are medicated through electronic forms in a consolidated remote location. newlineIn medical imaging, image types like MRI, CT or ultrasound are used by medical experts for quick and accurate diagnosis of various diseases. The medical images are very important for disease diagnosis, treatments and research. They act as key component of patient records in electronic form. The communication of these medical images is carried out through an insecure opensource network i.e. internet. The digital broadcast of medical image is continuously prone to malwares, cyber criminals and other infringements of security. The communication of medical image across vulnerable channel adds potential risk of undesirable effect and causes important disease related information in the medical image being lost or corrupted. Then, it becomes problematic for medical experts to diagnose the specific disease from corrupted or lost part of medical image. Therefore, security for medical image has become more essential and must fulfil the requirements like integrity, reliability and confidentiality. newlineSeveral state-of-art encryption techniques are available. Due to intrinsic properties of medical images such as mass data volume, high pixel correlation among adjacent pixels and high redundancy, these encryption algorithms are not appropriate for medical image encryption. Nowadays a main research challenge is about providing the security, integrity and confidentiality for medical images. newlineDeoxyribonucleic Acid (DNA) cryptography is an advanced evolving technology in cryptography. It is depending on DNA operations and DNA sequence