计算机工程2012，Vol.38Issue(20)：13-16,4.DOI:10.3969/j.issn.1000-3428.2012.20.004
基于混沌映射的图像块加密算法
Image Block Encryption Algorithm Based on Chaotic Maps
摘要
Abstract
Aiming at the defects of image encryption algorithms which only use the chaotic system's significant properties, such as sensitivity to initial condition, to scrambling and diffusion, a new image encryption method that has to do with the plaintext image is proposed. Partial plaintext information is extracted, which is used to control the generation of keys that are prepared for encrypting the plaintext, then in the process of encryption the characteristic of the binary is carried on block encryption, and a diffusion encryption for above image is further treated. Theoretical analysis and simulation demonstrate that the algorithm has a large key space, and its encryption image is very sensitive to keys, so it has a good ability of anti-plaintext attacks and anti-statistics attacks, and is more safer than only scrambling and diffusing for image, moreover the experimental result is ideal, thus it can be widely used in information security field.关键词
图像加密/混沌系统/伪随机序列/块加密/置乱/扩散Key words
image encryption/ chaos system/ pesuedo-random sequence/ block encryption/ scrambling/ diffusion分类
信息技术与安全科学引用本文复制引用
李静,舒永录,张玉书..基于混沌映射的图像块加密算法[J].计算机工程,2012,38(20):13-16,4.基金项目
国家自然科学青年基金资助项目(11001284) （11001284）
重庆市自然科学基金资助项目(2009BB3185) （2009BB3185）
重庆大学“211工程”三期创新人才培养计划建设基金资助项目(S-09110) （S-09110）
