//sm4加密解密
InstanceSM4 instanceSM4=new InstanceSM4();
String src = "hello 您好";
System.out.println("--生成SM4秘钥--");
String sm4Key = instanceSM4.generateSM4Key();
System.out.println("sm4Key:"+sm4Key);
System.out.println("--生成SM4结束--");
System.out.println("--SM4的CBC加密--");
String s1 = instanceSM4.SM4EncForCBC(sm4Key, src);
System.out.println("密文:"+s1);
System.out.println("CBC解密");
String s2 = instanceSM4.SM4DecForCBC(sm4Key, s1);
System.out.println("解密结果:"+s2)