基于素数的图像置乱技术  

The Application of Prime Number to Image Scrambling

作　　者：张文华[1] 陈雅颂[1] 穆国旺[1] 

机构地区：[1]河北工业大学理学院,天津300130

出　　处：《河北工业大学学报》2006年第4期1-4,共4页Journal of Hebei University of Technology

基　　金：河北省自然科学基金(A2004000001)

摘　　要：基于素数的性质,提出了两类新的图像置乱算法:双密钥算法和单密钥算法,计算其置乱度并与Arnold算法进行比较.该方法能够快速对图像进行置乱,并且扩展了密钥空间的尺度且满足密码学中的Kerckhoffs假设.实验结果表明该方法具有较高的安全性,能快速达到预期的置乱度.Based on the properties of prime number, two categories of image scrambling algorithms, double-secret-key and single-secret-key algorithms are present. The disorder degrees are computed and are compared with well-known Arnold method. Our new methods can disorder the image quickly, it extend the dimension of secret key space and satisfy the Kerckhoffs hypothesis in cryptology. Experiments show that our methods have high security and can obtain expected disorder degree quickly.

关 键 词：密码学 信息安全 图像置乱 信息隐藏 置乱度 

分 类 号：TN919.8[电子电信—通信与信息系统]