互联网用户图像资源加密安全保护仿真

Internet User Image Resource Encryption Security Protection Simulation

对互联网用户图像资源加密,能够有效保障网络用户的信息安全。对图像资源的加密安全保密处理,需要对图像进行奇异值分解,将其进行二进制转换,完成对互联网用户图像资源加密。传统方法计算出图像直方图中的最小值点和最大值点,修改图像像素的灰度值,但忽略了对其进行二进制的转换,导致加密效果不理想。提出互联网用户图像资源加密方法。利用整数变换加密方法对待加密图像进行分块,将相邻两像素划分为一组,促使各个像素组都保持一定的独立性,依据变换密钥,选取相应的像素组进行整数变换,依据变换密钥搜索到图像中已进行变换的像素组,对图像的部分比特平面进行奇异值分解,并将当前块保留的奇异值按顺序转换为二进制比特序列,并完成对互联网用户图像资源加密。实验结果表明,所提方法加密效果好,可以为保障用户信息安全提供科学的依据。

An encryption method of image resource for internet users is proposed. The block for encryption image is carried out by using encryption method of integer conversion, and the border upon two pixels is divided into a group to prompt each pixel group to keep certain independence. According to conversion secret key, the relevant pixel group is selected to carry out integer conversion, and the transformed pixel group in image is sought. The singular value de- composition （SVD） for sectional bit plane of image is carried out, and singular value reserved by current block is converted to bit series with binary system in order. Thus, the encryption for image resource of internet users is com- pleted. Simulation results show that the method has good encryption effect.