Interface IAuthenticator

Performs authentication.

Namespace: Nette\Security
Author: David Grudl
Located at Security/IAuthenticator.php

Methods summary
`public Nette\Security\IIdentity`	# `authenticate( array $credentials )` Performs an authentication against e.g. database. and returns IIdentity on success or throws AuthenticationException Performs an authentication against e.g. database. and returns IIdentity on success or throws AuthenticationException Returns `Nette\Security\IIdentity` Throws `Nette\Security\AuthenticationException`

Constants summary
`integer`	`USERNAME`	`0`	# Credential key Credential key
`integer`	`PASSWORD`	`1`	# Credential key Credential key
`integer`	`IDENTITY_NOT_FOUND`	`1`	# Exception error code Exception error code
`integer`	`INVALID_CREDENTIAL`	`2`	# Exception error code Exception error code
`integer`	`FAILURE`	`3`	# Exception error code Exception error code
`integer`	`NOT_APPROVED`	`4`	# Exception error code Exception error code