Auth::GoogleAuthenticator - Authenticate through Google Authenticator This document describes version 0.04. INSTALLATION This is a Perl module distribution. It should be installed with whichever tool you use to manage your installation of Perl, e.g. any of cpanm . cpan . cpanp -i . Consult https://www.cpan.org/modules/INSTALL.html for further instruction. Should you wish to install this module manually, the procedure is perl Makefile.PL make make test make install SEE ALSO TOTP: Time-Based One-Time Password Algorithm L<http://tools.ietf.org/html/rfc6238>