You can use this if you are a current member of the university, or if you graduated on or after Summer 2013 (formerly known as Raven for Life). Not all sites may support Nevar yet.
An application wants you to identify yourself:
control.srcf.net
If you trust this application, choose a login option to authenticate with your SRCF or Raven account.
Regardless of which you choose, the application will receive your CRSid (and with Raven login, whether you are a current student and/or staff member). No other personal information will be included.