V2EX one-time password

One-Time Password

定义 Definition

一次性密码(简称 OTP):一种只在一次登录/一次交易/一次会话中有效的验证码或密码,使用后即失效,用于提升账户安全性,降低密码泄露或重放攻击带来的风险。(也常指短信验证码、认证器 App 生成的动态码等。)

发音 Pronunciation (IPA)

/wn tam pswd/

例句 Examples

Please enter the one-time password sent to your phone.
请输入发送到你手机的一次性密码。

Even if an attacker steals your password, a one-time password can prevent unauthorized access because it expires quickly.
即使攻击者窃取了你的密码,一次性密码也能通过快速过期来阻止未授权访问。

词源 Etymology

one-time(一次性的)+ password(密码)组合而成。该术语在计算机安全与身份认证领域普及,用来强调“仅能使用一次”的特性,以区别于可重复使用的静态密码。

相关词 Related Words

文学与作品 Literary Works

  • RFC 2289 A One-Time Password System(一次性密码系统的早期标准文档)
  • RFC 4226 HOTP: An HMAC-Based One-Time Password Algorithm(基于 HMAC 的一次性密码算法)
  • RFC 6238 TOTP: Time-Based One-Time Password Algorithm(基于时间的一次性密码算法)
  • Bruce Schneier, Applied Cryptography(常讨论一次性口令/挑战应答等认证机制)
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