renangaleno/phpgoogleauthenticator

PHP Class for handling Google Authenticator 2-factor authentication

Google Authenticator PHP class

, _(*1)

This PHP class can be used to interact with the Google Authenticator mobile app for 2-factor-authentication. This class can generate secrets, generate codes, validate codes and present a QR-Code for scanning the secret., _(*2)

For a secure installation you have to make sure that used codes cannot be reused (replay-attack)., _(*3)

Usage:

See example files, _(*4)

php example1.php
Secret is: OQB6ZZGYHCPSX4AK

Google Charts URL for the QR-Code: https://www.google.com/chart?chs=200x200&chld=M|0&cht=qr&chl=otpauth://totp/infoATphpgangsta.de%3Fsecret%3DOQB6ZZGYHCPSX4AK

Checking Code '848634' and Secret 'OQB6ZZGYHCPSX4AK':
OK

Author

Renan Galeno * https://renan.eng.br/, _(*5)

Michael Kliewe * http://www.phpgangsta.de * http://twitter.com/PHPGangsta, _(*6)

License

Licensed under the BSD License., _(*7)