We needed to ensure valid users get the pages they need, but without prompting for a username and password every time they request one — just once per session.

我们需要确保有效的用户得到他们需要的页面，但不必在每次他们请求一个页面时都提示用户名和密码—每个会话只提示一次。

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They whistled to each other for a minute; then old woman turned to Lizette. "You will not need magic for a password."

他们对彼此吹了一会儿口哨之后，老人转向莉莎特，“你不需要口令的魔法了。”

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They just need to know the password to decrypt the private key.

他们只需要知道密码来解密私钥。

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That means users only need to remember one master password, which they're not likely to forget.

FORBES: Escaping Password Purgatory

Once individuals download their data, they will need to ensure its safety for example, by encryption or password protection.

WHITEHOUSE: Health Care Blog | The White House

Each user starts off with 10 cents in his or her account, provided by Centsports. (You need only register a name and password.) From there, they can bet on any event for which Las Vegas bookmakers set a line.

FORBES: A Legal Alternative To Online Gambling