摘要
目的为了保证数字图像的安全性和可靠性,提出混沌序列对称加密算法对数字图像进行加密。方法设计了基于Logistic映射模型的混沌序列对称加密算法,实现对数字图像的混沌加密及解密。结果加密实例表明加密图像已经完全掩盖了原图的内容,原图的灰度分布也得到了掩盖。结论基于Logistic映射的混沌加密是一种安全、有效、快速的加密方法。
Aim In order to guarantee the security and the reliability of the digital image, a symmetric encryption algorithm based on the model of Logistic mapping for chaotic sequences is proposed to encrypt the digital image. Methods The symmetric encryption algorithm on the basis of Logistic chaotic series is designed to implement the encryption and the decryption of the digital image. Results An example shows that the encrypted image has entirely concealed the content and the distribution of gray scale of the original image. Conclusion The chaotic encryption based on Logistic mapping is a safe, efficient, fast encryption method.
出处
《宝鸡文理学院学报（自然科学版）》
CAS
2009年第1期66-68,共3页
Journal of Baoji University of Arts and Sciences(Natural Science Edition)
基金
宝鸡文理学院重点科研项目(ZK08139)
