Deleting MIT Personal Certificates
The following procedures delete MIT personal certificates.
In Firefox 2.0.x on all platforms, and Internet Explorer 7 on
Windows, unexpired and expired personal certificates can coexist. In Safari 2.x on Mac OS X, an
expired MIT personal certificate may interfere with getting to MIT
certifcate-protected web sites, even if you have an unexpired
certificate; therefore, IS&T recommends deleting expired certificates.
Firefox
- On Athena, Linux, or Macintosh, go to Preferences > Advanced > View
Certificates.
On Windows, go to Tools > Options > Advanced > View
Certificates.
- Click Your Certificates, then select the personal
certificates to delete (hold down the Shift key
to select multiple items).
- Click Delete.
- In the "Delete your Certificates window", click OK.
Result: You may be prompted to enter the master password (browser
password) for the Software Security Device.
- Click OK to exit.
- Get a new personal certificate.
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Internet Explorer
- Go to Tools > Internet Options > Content
> Certificates > Personal.
- Select the certificate to delete.
- Click Remove.
- In the confirmation box, click Yes.
- Click Close, and then click OK.
- Get a new personal
certificate.
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Safari
Because of a conflict between unexpired and expired personal certificates in accessing secure MIT web pages, you must delete expired certificates, even if you already have an unexpired certificate.
- From your Mac OS X account, go to Applications > Utilities > Keychain Access.
- In the Keychains list, select login.
- Select
the item with your full name. It should have a certificate
icon next to it, and the label "certificate"
under Kind; this is your MIT personal certificate.
In the panel showing the certificate attributes, check to see
that the selected item is expired, or that it will expire soon.
- Go to Edit > Delete in
the Keychain Access menus.
- In the confirmation dialog, click Delete.
- Quit Keychain Access.
- Get a new personal certificate.
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