一次一密口令的设计，运行该口令程序，屏幕上弹出一个仿Windows窗口，提示用户输入口令，并给出提示模式。用户输入口令，按照一次性算法计算比较，符合，给出合法用户提示；否则给出非法用户提示。再一次运行口令程序，如果输入与第一次同样的口令，系统应当拒绝，提示非法用户。每次提示和输入的口令都是不一样的。-Once the design of a secret password, run the password program, the screen pop up a fake Windows window prompts the user for a password, and gives prompt mode. The user to enter a password, in accordance with the one-time algorithm of comparison, in line with the given prompt legitimate users　otherwise illegal user tips are given. Once again, run the password procedure, if the input and the same password the first time, the system should be rejected, suggesting that the illegal users. Every time the password prompt and input are not the same.