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Example code of christian-riesen/otp

Informations about the package otp

One Time Passwords

Build Status

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Installation

Use composer and require the library in your composer.json

{
    "require": {
        "christian-riesen/otp": "^2.0",
    }
}

Usage

Sample script in example folder. Requires sessions to work (for secret storage).

Class Otp

Implements hotp according to RFC4226 and totp according to RFC6238 (only sha1, sha256 and sha512 algorithms). Once you have a secret, you can use it directly in this class to create the passwords themselves (mainly for debugging use) or use the check functions to safely check the validity of the keys. The checkTotp function also includes a helper to battle timedrift.

Class GoogleAuthenticator

Static function class to generate a correct url for the QR code, so you can easily scan it with your device. Google Authenticator is available as an application for iPhone and Android. This removes the burden to create such an app from the developers of websites by using this set of classes.

There are also older open source versions of the Google Authenticator app for both iPhone and Android.

About

Requirements

PHP >= 5.4.0

Uses paragonie/random_compat and paragonie/constant_time_encoding.

If you want to run the tests, PHPUnit >= 4.8.35 is required.

Author

Christian Riesen http://christianriesen.com

Acknowledgements

The classes have been inspired by many different places that were talking about otp and Google Authenticator. Thank you all for your help.

Project setup ideas blatantly taken from https://github.com/Seldaek/monolog

All versions of otp with dependencies

PHP Build Version
Package Version
Requires php Version >=5.6.0
paragonie/constant_time_encoding Version ^1|^2
paragonie/random_compat Version >=1
symfony/polyfill-php56 Version ^1
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