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Mathematical Problems in Engineering
Volume 2015, Article ID 913476, 11 pages
http://dx.doi.org/10.1155/2015/913476
Research Article

Cryptanalysis and Improvement of an Efficient and Secure Medical Image Protection Scheme

1Software College, Northeastern University, Shenyang 110004, China
2Department of radiology, The General Hospital of Shenyang Command PLA, Shenyang 110016, China

Received 26 August 2014; Accepted 25 November 2014

Academic Editor: Jonathan N. Blakely

Copyright © 2015 Li-bo Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Nowadays, the increasing demand for telemedicine services has raised interest in the real-time medical image protection literatures. In this paper, we evaluate the security of an efficient and secure medical image protection scheme recently proposed (Fu et al., 2013). It is found that this scheme can be successfully broken by launching chosen-plaintext attacks. Improvement is subsequently developed for promoting the security and efficiency performance. Extensive security analyses and experimental results both indicate that the improved scheme can well address the security flaws and advance the speed performance of the original one.