设计一个周期5 的16-置换移位密码并予以实现，要求：5 个16-置换至少有一个是由实验一（n=15）提供的两个方法以外、自行设计的其它方法产生。-Designing a cycle 5 16- displace the shift password and to achieve the requirements: 5 16- is at least one of the replacement from outside the experiment (n = 15) provides two methods, other methods to generate a self-designed.