[Catalyst] How to extend authentication to use other DB fields?

[Julien Sobrier]

Hello,
I am currently using the simple password authentnication:
__PACKAGE__->config->{'Plugin::Authentication'} = {
	default => {
	    class           => 'DBIx::SimpleDB', #
	    user_model      => 'DB::User',
	    password_type   => 'self_check',
	},
};

with $c->authenticate({ username => [..], password => [...] });

I would like to extend my autentication to accept other fields:
with $c->authenticate({ fileld1 => [..], field2 => [...], fieldd => [...] });


Do I have to create my own Catalyst::Authentication::Credential plugin?

Thank you
Julien