说明：  人们在日常生活,工作过程中越来越离不开密码的使用,比如新型小区单元门的电子密码锁,超市的储存柜,智能取款机,公司转帐交易等,这些时候人们接触到的都是一种使用电子密码的装置.电子密码的应用虽然广泛,但是基本原理都大体相同
(People in our daily life and work can not be separated from the process of increasing the use of passwords, such as new residential units of the electronic door locks, supermarket store counters, smart teller machines, the company, such as debit transactions, the time when people are exposed to A password to use electronic devices. Although the application of electronic password extensive, but the basic principles are the same)