Installing the S/MIME Certificate on your Windows System
You can use Client Certificates, also called "S/MIME", Client or "Personal" Certificates, with most e-mail clients to digitally sign or encrypt e-mail. Client certificates are provided through the InCommon Certificate Service. For more, including how to get a certificate, see the S/MIME Client Certificate section.
When you receive your certificate from InCommon, it will be encrypted in the PKCS 12 format (.p12 or .pfx), using the pass-phrase or PIN you created for it at the time of request. You will need this pass-phrase to install the certificate.
Importing the certificate
To use an SMIME/ Client certificate, you must first make sure that the certificate has been imported and is ready for use.
- In Internet Explorer, in the menu bar, click "Tools". Alternatively, click the gear icon located at the top right-hand corner of the browser.
- From the drop-down menu, select "Internet Options".
- In the "Internet Options" window, click the "Content" tab, and then select "Certificates".
- In the "Certificates" window, click "Import..." to open the "Certificate Import Wizard".
- Click "Next", and then browse to the location where you have saved your security certificate.
- Note: If your certificate has a .p12 or .pfx file extension, you may need to select All Files (.) from the file type drop-down menu in order to see your certificate.
- Select your certificate and click "Open", and then click "Next".
- Enter your "pass-phrase" or the "PIN" that you used to secure the private key, and then click "Next".
- Note: It is recommended that you select the "Mark this key as exportable" option, as this will enable you to export the certificate and its private key.
- Leave the default choice set to place all certificates in the "Personal Certificate" store, and then click "Next".
- Click "Finish", and then click "OK" to close the "Certificate Import" window.
- Your certificate should now be imported to the computer.