public function validationPassword(Validator $validator) {
		$validator->setProvider('userTable', $this->_table);

		$validator->add($this->_field('password'), [
			'notBlank' => [
				'rule' => 'notBlank',
				'message' => __d('user_tools', 'A password is required.')
			],
			'minLength' => [
				'rule' => ['minLength', $this->_config['passwordMinLength']],
				'message' => __d('user_tools', 'The password must have at least 6 characters.')
			],
			'confirmPassword' => [
				'rule' => ['compareFields', 'confirm_password'],
				'message' => __d('user_tools', 'The passwords don\'t match!'),
				'provider' => 'userTable',
			]
		]);

		return $validator;
	}