计算机技术与发展2017，Vol.27Issue(8)：106-109,114,5.DOI:10.3969/j.issn.1673-629X.2017.08.022
基于混沌置乱的分量融合图像加密压缩方法
An Image Encryption and Compression Method Based on Chaos Scrambling with Component Fusion
摘要
Abstract
The transmission of image information needs to be compressed and encrypted to reduce redundancy and prevent unauthorized accessing.Image compression has been investigated for a long time,so various compressed algorithms and theories have emerged in an endless stream,and there is still space for improvement in the field of encryption compression.In view of the known-plaintext attacks and other hacker attacks,on the basis of studying on Logistic chaos encryption and mage encryption and compression method based on chaos scrambling,an inverse fusion method is proposed.It fuses the color component extracted in RGB image after it is conducted Discrete Cosine Transform (DCT),which carries out compression and encryption meanwhile,improving its security significantly.Although it can meet the requirements of normal encryption,previous investigations have shown that once leaked part of plaintext,its safety must be reduced.In order to improve the security against known-plaintext attacks,Logistic chaos scrambling has been employed as the second encryption after encrypted and compressed.The experimental results show that it can successfully resist the known-plaintext attacks and hacker attack test with good compression performance.关键词
图像压缩/加密/离散余弦变换/分量融合/混沌加密Key words
image compression/encryption/DCT/component fusion/chaos encryption分类
信息技术与安全科学引用本文复制引用
任荣梓,高航..基于混沌置乱的分量融合图像加密压缩方法[J].计算机技术与发展,2017,27(8):106-109,114,5.基金项目
江苏省科技成果转化专项资金资助项目(BA2012023) （BA2012023）
