The University of Texas at Austin

Digital Certificates

What Systems and Programs Can Use Digital Certificates?

Here is a list of systems and programs that ITS has tested for use with the VeriSign Digital Certificates that are available with this service.

Browsers you can use for downloading a certificate

  • Firefox

  • Internet Explorer

Please do not use Safari or any other unsupported browser to download your certificate. It will not work.

Operating systems

This is a list of operating systems where we have tested installed programs:

  • Windows XP

  • Windows Vista

  • Mac OS X 10.4+

  • Linux

Operating systems have different ways of handling certificates, and they may offer additional options that are not described on this website. Please consult the Help files for your operating system if you have additional questions.

Installed email programs

  • Outlook 2003 and 2007

  • Entourage 2004 and 2008

  • Thunderbird

  • MacMail

File encryption

Effective June 19, 2008, use of the Encrypted File System (EFS) on Windows XP and Vista is allowed in the Austin domain.

Digital Certificates are not used for the whole-disk encryption options that are available on Windows Vista (BitLocker) and Mac OS X (FileVault). They are also not used by the Enterprise Whole Disk Encryption service offered to the university by ITS.

Web-based email programs

Outlook Web App generally supports reading of signed email messages, but not necessarily encrypted email messages. Please see Using Outlook Web App for more information.

Programs that can't use Digital Certificates

Most Web-based email programs can't send messages using digital certificates because they do not have support for the S/MIME protocol that is required. If you use one of these Web-based clients, will probably be able to read signed email that is sent to you, but you won't be able to read encrypted email or send encrypted or signed messages.

Last updated December 10, 2012 @ 2:54 pm

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