jsotp

Javascript One-Time Password module.
v1.0.4 URL: https://unpkg.com/jsotp@1.0.4/lib/jsotp.js
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otptotphotprfc6238rfc4226

hotp

HMAC-Based One-Time Password (HOTP), and Time-Based One-Time Password (TOTP) Algorithms
v3.0.1 URL: https://unpkg.com/hotp@3.0.1/lib/hotp.js
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hotptotpotprfc4226rfc 42264226rfc6238rfc 62386238one-time passwordtwo-factor authenticationtwo-factor2faauthenticationauthenticatorhmachmac-basedtime-based

node-otp

Node.js One-Time Password
v1.2.3 URL: https://unpkg.com/node-otp@1.2.3/lib/index.js
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otptwo-factorrfc4226rfc6238typescript

@colingreybosh/otp-lib

A TypeScript library for generating, validating, and managing one-time passwords (OTP) for authentication purposes.
v0.0.4 URL: https://unpkg.com/@colingreybosh/otp-lib@0.0.4/dist/index.js
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typescriptotptotphotpauthenticationsecuritytwo-factor2faone-time-passwordgoogle-authenticatorrfc6238rfc4226

gotp

simple RFC4226 TOTP
v1.0.0 URL: https://unpkg.com/gotp@1.0.0/index.js
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googleotptotprfc4226hmaccrypto