实现国密算法的SM2、SM3、SM4，可以界面上测试算法的正确性，同时包含国密局公开的国密算法规范，这是信息安全的基本软件。-Encryption algorithm to achieve the country s SM2, SM3, SM4, you can test the correctness of the algorithm interface and also includes the country close to the national Bureau of Public e

国米算法SM4进行加密解密，界面简单易于理解-Inter SM4 encryption and decryption algorithm, simple interface is easy to understand

sm4国密对称算法源码和使用sample，请参考-sm4 source code sample