基于混沌同步的高效数字图像加密方案

将混沌同步技术应用在数字图像加密技术中,使数字图像在传输及保存中更具安全性.对一个新三维混沌系统构造了同步混沌系统,并将该新三维混沌系统应用于数字图像加密,同步混沌系统应用于数字图像解密.实验结果表明:算法具有足够大的密钥空间,加密效果良好,可以抵抗穷举攻击,已知明文攻击及统计攻击等,可适用彩色图像加密,也可适用灰度图像加密,算法适用性强.

High Performance Digital Image Encryption Scheme Based on Chaotic Synchronization

The chaos synchronization technology application in the digital image encryption technology makes the digital image more security in the transmission and preservation. This chaos synchronization system was constructed based on a new three-dimensional chaotic system,and applied the new three-dimensional chaotic system to encrypt the digital image. The results show that the algorithm had a very large key space and the encryption effect is good. The algorithm can resist the brute force attack,known plaintext attack and statistical attack. The algorithm has strong adaptability,it is not only suitable for color image encryption,but also apply to the gray image encryption.