电子学报2012，Vol.40Issue(2)：406-411,6.DOI:10.3969/j.issn.0372-2112.2012.02.032
基于改进AES加密算法的DICOM医学图像安全性研究
Research on the Security of DICOM Medical Images Based on Improved AES Encryption Algorithm
摘要
Abstract
In this paper,a medical image encryption algorithm is proposed. The algorithm is based on the design principle of AES, and combined with Skew tent map. The standard procedure of AES is modified so that it can be suitable for the DICOM medical digital images. At first, the block size 4 * 4 in AddRoundKey is replaced by the size of an image.Then the basic information of patient is protected by our proposed algorithm. In addition,the AES's MixColumns and key schedule are improved.The theoretical analysis and numerical simulations show that the improved algorithm not only has better confusion diffusion effects with less computational overhead,but also can maintain the compatibility of DICOM file format.关键词
医学图像加密/AES/DICOM/混沌系统Key words
medical image encryption/ AES/digital imaging commucation in medicine (DICOM)/chaotic system分类
信息技术与安全科学引用本文复制引用
向涛,余晨韵,屈晋宇,罗小松..基于改进AES加密算法的DICOM医学图像安全性研究[J].电子学报,2012,40(2):406-411,6.基金项目
国家自然科学基金(No.61103211) （No.61103211）
中央高校基本科研业务费(No.CDJZR10180020) （No.CDJZR10180020）
中国博士后科学基金特别资助(No.201104319) （No.201104319）
中国博士后科学基金(No.20100470817) （No.20100470817）
