2012 | OriginalPaper | Chapter
DICOM Image Authentication and Encryption Based on RSA and AES Algorithms
Authors : A. Kannammal, S. Subha Rani
Published in: Trends in Intelligent Robotics, Automation, and Manufacturing
Publisher: Springer Berlin Heidelberg
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Significant advancements in information and communication technologies have made remarkable developments in many fields including healthcare delivery and medical data management. Digital watermarking and encryption techniques have been used to increase medical image security, confidentiality and integrity in addition to conventional network security protection.The work mainly focuses on the DICOM images, DICOM has been an Universal Standard for secured communication of Medical Images over networks. The Digital Envelope method is used to assure data integrity and security.The DE, including the digital signature of the image as well as encrypted patient information from the DICOM image header, can be embedded in the background area of the image as an invisible permanent watermark The watermarked image is then encrypted using AES and RSA algorithms.The encrypted images are then tested with common attacks and the quality measures such as PSNR, correlation coefficient and TAF are calculated to evaluate the behaviour of the algorithms.