eng Oriental Scientific Publishing Company Biomedical and Pharmacology Journal 0974-6242 2018-06-25 11 2 897 906 10.13005/bpj/1446 20901 article Abinaya Kumari 1 B. Akshaya 1 B.Umamaheswari 2 K.Thenmozhi 1 Rengarajan Amirtharajan 1 Padmapriya Praveenkumar 1 ECE department, SASTRA Deemed University, Thanjavur JECRC, Jaipur This paper introduces a framework for the secure encryption of healthcare images. The objective of this paper is to encrypt medical images based on Deoxyribo Nucleic Acid (DNA), 3D Lorenz chaotic map, BITXOR operations. The different keys are employed to provide confusion, permutation, encoding and diffusion operations in the encryption procedure to provide uncorrelated image pixels. The proposed algorithm uses 3D Lorenz attractor as chaotic system for encrypting colour Digital Imaging and Communication in Medicine (DICOM) images. Further the encrypted image will be validated using encryption quality to evaluate the security analysis. https://biomedpharmajournal.org/vol11no2/3d-lorenz-map-governs-dna-rule-in-encrypting-dicom-images/ DICOM DNA NPCR Lorenz Map UACI