Journal
COMPUTERS IN BIOLOGY AND MEDICINE
Volume 33, Issue 3, Pages 277-292Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0010-4825(02)00094-X
Keywords
confidentiality for medical images; AES; selective or partial encryption; JPEG2000
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We discuss computationally efficient techniques for confidential storage and transmission of medical image data. Two types of partial encryption techniques based on AES are proposed. The first encrypts a subset of bitplanes of plain image data whereas the second encrypts parts of the JPEG2000 bitstream. We find that encrypting between 20% and 50% of the visual data is sufficient to provide high confidentiality. (C) 2003 Elsevier Science Ltd. All rights reserved.
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