基于Rijndael的图像加密系统的研究与设计

提出了一种基于Rijndael的图像置乱算法，较好地解决了M×N的彩色图像加密．该算法具有对密钥敏感、密钥空间大、加密后的图像像素扩散性好等特点，可有效地保证加密图像的安全．采用面向对象的分析与设计思想，设计和开发了基于置乱算法的图像加密系统，实现对灰度和彩色位图图像文件的加密．

Image Encryption System Research and Designation Based on Rijndael

It puts forward an image scrambling algorithm based on the Rijndael, solved the problem of M×N multicolor image encryption. The algorithm had the characteristics of being sensitive to the key, having large key space, and having good image pixel dispersivity after encryption. It ensured the security of the encrypted image. Using the method of object oriented analysis and designing, it designed an image scrambling algorithm system. This system solved the problem of gray image encryption and multicolor image encryption.