What is CAS?

CAS stands for Central Authentication System. mySUU and other web applications use CAS to authenticate you as a user. Authentication checks that your username exists and your password is correct.

Once you have typed your username and password and clicked 'Login', CAS will verify your username and password. If they are correct you will be authenticated you will no longer have to type your username and password to log into any application that uses CAS. This is called single sign-on since you only have to enter your username and password once to log into many different applications.

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