摘要
信息安全已成为数字图像领域的一个研究重点,针对传统算法无法适应数字图像加密要求的局限性,提出一种双线性反馈移位寄存器的数字图像加密算法。首先对传统反馈移位寄存器进行分析,指出了其不足,然后利用混沌系统的随机性、非线性优点,设计了一种双线性反馈移位寄存器,最后将双线性反馈移位寄存器应用于数字图像的加密,并对算法安全性进行了分析。结果表明,本文算法大大提高了数字图像的安全性,而且解密效果良好。
Image information security has become a focus of the current research, the traditional encryption algorithm can not adapt to the limitations of digital image encryption, and this paper proposed a digital image encryption algorithm based on bilinear feedback shift register. Firstly, the traditional feedback shift register for analysis and pointed out its shortcomings, and then use the chaotic system of random and nonlinear advantages design a bilinear feedback shift register, the linear feedback shift register is applied to the digital image encryption process, and analyzes the security of the algorithm. This algorithm greatly improves the security of digital image, and the decryption effect is good.
出处
《激光杂志》
北大核心
2016年第10期82-84,共3页
Laser Journal
基金
贵州省科学技术基金资助项目(LKZ[2011]22)
国家自然科学基金资助项目(61463053)
关键词
数字图像
加密算法
信息安全
双线性反馈
移位寄存器
digital image
encryption algorithm
information security
bilinear feedback
shift register
