如果其他任何人能够访问私钥，他们接下来就可以用它来“证明”身份，并以您的名义进行活动；私钥很像密码，只是更安全，更改比较困难。
Should anyone else ever gain access to the private key, they can then use it as "proof" of identity and act as you; it is like a password, only more secure and more difficult to change.
这里只是让脚本询问用户名、密码、主目录等等，并以system调用来调用adduser。
Just have your script ask for user name, password, home directory, etc. and invoke adduser with a system call.
这可以通过单击导航条底部的“Login”链接并以admin用户身份用admin密码登录来完成。
You can do this by clicking the Login link at the bottom of the navigation bar and logging in as user Admin with a password of Admin.
你若擅长数学或逻辑性的问题，解开这道挑战题，并以答案为密码，打开附件，将你的名字加在名人堂里面。
If you're good at math or logical problems, solve this challenge and the answer is the password to open the spreadsheet to which you can add your name to the hall of fame.
研究功耗分析如何破解密码算法中的密钥的关键技术，并以此为基础提出防御功耗分析的安全密码算法是非常必要的。
It is necessary to study that how to break the encryption system using power analysis techniques and design security encryption algorithms that can resist power analysis.
他们自称是服务台的人员，并以修复网络为名，要国税局的职员提供用户名，并根据前者的建议更改密码。
Posing as helpdesk personnel, they said they needed help in fixing a network problem and asked the IRS staff to provide their usernames and change their passwords to ones the callers suggested.
他们自称是服务台的人员，并以修复网络为名，要国税局的职员提供用户名，并根据前者的建议更改密码。
Posing as helpdesk personnel, they said they needed help in fixing a network problem and asked the IRS staff to provide their usernames and change their passwords to ones the callers suggested.
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