摘要
针对移动智能终端信息传递中存在的安全性问题,提出一种基于最小直方图失真(LHA)的匹配隐写方案(M-LHA),并设计一种基于Android移动平台的信息隐藏系统。M-LHA隐写算法采用置换的方式对秘密信息进行预处理,选择与载体图像最佳匹配的置换方案实现隐写。实验结果证明,相比传统的LHA算法,M-LHA算法具有更好的相对熵以及更稳定的直方图分布,能有效提高隐写系统的不可感知性。设计的信息隐藏系统可满足终端用户的安全需求。
Regarding the security problem of information transmission in mobile terminal,this paper proposes a best matching steganography scheme,Matching steganography scheme Least Histogram Abnormality( M-LHA) based on Least Histogram Abnormality( LHA),and a model of information hiding system based on Android platform. M-LHA steganography preprocesses the secret information by replacement algorithm,and selects the swap that best matches the carrier image for steganography. It is proven that M-LHA algorithm has better relative entropy and more stable histogram distribution in comparison with the traditional LHA steganography algorithm,which can bring the effective improvement in the imperceptibility of steganography system. The information hiding system also meets the safety requirements for mobile terminal users.
出处
《计算机工程》
CAS
CSCD
北大核心
2015年第3期303-305,311,共4页
Computer Engineering
基金
国家科技重大专项基金资助项目(2011ZX03002-004-02)
浙江省杰出青年科学基金资助项目(R1110416)
教育部高等学校博士学科点专项科研基金资助项目(20113305110002)
宁波市科技创新团队基金资助项目(2011B81002)
关键词
信息隐藏
移动终端
最小直方图失真
置换算法
相对熵
information hiding
mobile terminal
Least Histogram Abnormality(LHA)
replacement algorithm
relative entropy