Libraries tagged by RFC 6238

PHP class to generate and verify Google Authenticator 2-factor authentication

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Google身份验证器,Google两步验证, Google Authenticator，Google Authenticator 2-factor authentication

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Google Authenticator 2-factor authentication from repo phpgangsta/googleauthenticator

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psr4 Google Authenticator 2-factor authentication

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Google Authenticator 2-factor authentication

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A lightweight and secure PHP class for implementing TOTP two-factor authentication, compatible with Google Authenticator, Authy, and more.

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One-Time-Password (OTP) generator. RFC4226 (HOTP) and RFC6238 (TOTP) complaint.

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Google Authenticator 2-factor authentication

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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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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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2FA authentication plugin for sysPass based on TOTP algorithm (RFC 6238)

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The TOTP based on [RFC6238](https://tools.ietf.org/html/rfc6238)

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YII2 extension for generating one time passwords according to RFC 4226/6238 (HOTP/TOTP Algorithm) and authentication widget

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