这是Arnold变换 and 反变换的源代码.算法是经过改正的，运行可靠。在图像处理过程中用于图像预处理。-This is the Arnold transform and inverse transform of the source code. Algorithm is the result of correct and reliable operation. In the image processing for image preprocessing.

RSA加密/解密算法实现源码与例子 -The source code and examples of implement of RAS encryption and decryption algorithm