Certificates Landing Page
On this page:
Overview
Certain web applications at MIT require authentication using a personal certificate rather than Touchstone. Install a personal certificate in each web browser you use to access a site requiring certificate authentication. Personal certificates expire every year on July 30.
Get Certificates
![]() | If you have not changed your password in the past year, you will need to do so before you can get certificates. Certaid will give you an error saying you're not logged in if you need to update your password.
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Android
iOS
Using CertAid (Windows and Mac)
IS&T strongly recommends using CertAid to configure your certificates for Chrome, Safari, and Firefox 90 and above. CertAid manages the entire certificate setup procedure, giving you a more reliable installation experience. The setup procedure includes installing the MIT CA (Certificate Authority) as well as your personal certificate, optionally deleting old certificates, and setting the correct identity preferences via a single, graphical application.
![]() | CertAid does not run on mobile devices (i.e., iOS and Android devices) |
Windows
- Edge, Chrome, and Firefox 90+: CertAid 2.2.6 for Windows
Microsoft Edge needs to at least be installed on the Windows machine in order to fully run.
MacOS X
- Safari, Chrome, and Firefox 90+: CertAid 2.2.6 for MacOS
Other
- Manually Install and Delete MIT Personal Certificate in Firefox- For both Windows and MacOS
Deleting Old Certificates
![]() | IS&T Strongly Recommends Deleting Your Old/Expired Certificates Old certificates can confuse browsers and web-sites causing them to fail to authenticate you properly with your active certificates. The easiest way is to use Certaid (see above). |
If you need to retain access to old user certificates, e.g., for access to encrypted mail, you should export them from your browser and save them for use with your legacy items.
- Delete MIT Personal Certificates in Chrome for Windows
- Delete MIT Personal Certificates for Safari or Chrome on Mac OS X
- Manually Delete MIT Personal Certificates in Firefox
Troubleshooting
- Test Your Certificate
- Certificate Not Valid Error - Certificate Test Fails
- "A client certificate was invalid or not provided." - Mac error message
- What to do if a browser or App is prompting for a password after updating my certificate?
For More Information
- What is an MIT personal web certificate?
- What is stored in an MIT Personal Certificate?
- MIT Sites That Require Certificate Authentication
Still Need Help?
Send contact the IS&T Service Desk or call us at 617 253-1101.