V2EX otp

OTP

释义 Definition

OTP 是缩写,最常见指 one-time password,即“一次性密码/动态验证码”,用于登录验证或双重验证(2FA),每次使用后失效或在短时间内过期。
(在网络语境中,OTP 也可能指 on the phone “在打电话”,或饭圈用语 one true pairing “本命CP/最爱配对”。)

发音 Pronunciation (IPA)

/o ti pi/

例句 Examples

Please enter the OTP sent to your phone.
请输入发送到你手机上的一次性验证码。

Even if someone steals your password, OTP-based two-factor authentication can greatly reduce the risk of account takeover.
即使有人窃取了你的密码,基于一次性验证码的双重验证也能大幅降低账号被盗用的风险。

词源 Etymology

OTP 属于现代英语中的首字母缩略词(initialism),常见来源是 one-time password(一次性密码)。随着网上银行、支付与账号安全需求增长,这个缩写在安全与产品界面中广泛普及;后来在聊天语境与同人文化中又衍生出其他含义。

相关词 Related Words

文学与作品 Literary Works

  • RFC 6238: TOTP Time-Based One-Time Password Algorithm(互联网标准文档,频繁出现 “OTP” 相关表述)
  • RFC 4226: HOTP An HMAC-Based One-Time Password Algorithm(互联网标准文档)
  • NIST Special Publication 800-63(美国国家标准与技术研究院数字身份指南,涵盖一次性口令/OTP 等认证概念)
  • The Web Application Hacker’s Handbook(Web 安全经典书籍,讨论认证与一次性口令等机制时常出现相关术语)
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