Section of TYPO3 Flow 2.0 beta login controller

LoginController.php

    /**
     * Injects the security context
     *
     * @param \TYPO3\Flow\Security\Context $securityContext The security context
     * @return void
     */
    public function injectSecurityContext(\TYPO3\Flow\Security\Context $securityContext) {
        $this->securityContext = $securityContext;
    }

/** Settings.yaml for security
TYPO3:
  Flow:
    security:
      enable: TRUE
      authentication:
        authenticationStrategy: oneToken
        providers:
          DefaultProvider:
            provider: PersistedUsernamePasswordProvider