SSL Certificates offer the ability for a web site or application to validate its identity as well as encrypt traffic sent to/from it across the internet. Any system at Creighton that has a logon page or provides/accepts sensitive or confidential data MUST use SSL to ensure the security of data transmitted across the network. Sensitive and confidential data is defined by the data classification policy (link).
A certificate is a digital file that is cryptographically signed by a trusted organization known as a CA. Creighton University currently uses GlobalSign as the CA for production certificates. GlobalSign certificates should be trusted and accepted by all the major browsers and operating systems such as Windows, Mac OS X, and Linux.
If you manage an application or server that needs SSL, there are instructions for creating a certificate request and requesting a new certificate. If you already have a certificate that is about to expire, there are instructions for renewing that certificate.