Libraries tagged by RFC 6838

A PHP library for generating one time passwords according to RFC 4226 (HOTP Algorithm) and the RFC 6238 (TOTP Algorithm) and compatible with Google Authenticator

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Two Factor Authentication (2FA) for Laravel

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Library that simplifies using One Time Passwords (OTP) (HOTP or TOTP algorithm) in Yii3 applications

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Two factor authentication (2FA) with TOTP tokens. (RFC 6238)

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Dependency-free PHP TOTP (RFC 6238) / HOTP (RFC 4226) implementation, verified against the official RFC test vectors.

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Ajoute un TOTP (2FA) optionnel et par utilisateur au-dessus d'un système d'authentification existant, sans le modifier. Aucun service externe : tout le calcul TOTP est local (RFC 6238).

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TOTP (RFC 6238) / Asafe compatible 2FA helper.

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Simple TOTP (RFC 6238)

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Laravel 2FA is a PHP implementation of the Google Two-Factor Authentication Module, supporting the HMAC-Based One-time Password (HOTP) algorithm specified in RFC 4226 and the Time-based One-time Password (TOTP) algorithm specified in RFC 6238.

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Two-factor authentication with time-based one-time passwords (TOTP, RFC 6238) for the CakePHP 2 AuthComponent

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Coroutine-safe, zero-dependency HOTP/TOTP (RFC 4226 / RFC 6238) with provisioning URIs for the PHPdot ecosystem.

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Multi-factor authentication for Laravel — TOTP compatible with Google Authenticator, Authy, and any RFC 6238 app.

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NDT 2FA — TOTP (RFC 6238) for PHP with backup codes, otpauth URIs, and QR generation (SVG). Laravel & Symfony integrations included.

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PHP Implementation of RFC 6238 used by the Google Authenticator Token Generator

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HOTP according to RFC 4226 and TOTP according to RFC 6238.

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