Securing Patients Medical Images andAuthentication System Based on Public KeyInfrastructure

摘要

In this paper we present a securing patient medical images and authentica-tion system to increase the security, confidentiality and integrity of medical imagestransmitted through the Internet. A public key encryption technique was used toencrypt the patient capturing fingerprint and then embed it into the patient medicalimage. The fingerprint has been encrypted using the Rivest-Shamir-Adelman (RSA)public-key encryption algorithm. Then, by embedding the encrypted patient's fin-gerprint using a technique for digital watermarking in the Discrete Cosine Trans-form (DCT) domain makes the medical image be robust to several common attacks.The experimental results on different medical imaging modalities demonstrate theefficiency and transparency of the watermarking system.