DES算法，这个代码实现DES的算法，想学学DES如何加密和解密可以参考参考-DES algorithm, the source implementation of the DES algorithm to learn how DES encryption and decryption can information.

先输入矩阵的维数，再输入该矩阵，然后通过该算法从大到小输出该矩阵的各行各列和主辅对角线的和-First dimension of input matrix, and then enter the matrix, and then through the smallest of the algorithm output lines of the matrix columns and the main diagonal and Des

包括des和mds算法描述，ECC加密算法入门介绍，密码知识-Including des and mds algorithm descr iption, ECC encryption algorithm entry, the password of knowledge