In access control apopular form of knowledge test for access control . a password is a string of alphanumeric data or a phrase that must be entered int o a system to gain access to a physical area or a resource 存取控制中一種測試訪問控制權(quán)的常見方式,口令是由字母和數(shù)字組成的字符串或短語,它們必須輸入系統(tǒng)以獲得某一實(shí)際區(qū)域或資源的使用權(quán)限。