How to back up your electronic certificate
Skip information indexMacintosh - Copy certificate in Safari
If the operating system is Macintosh and the browser is Safari, the electronic certificate must be installed in the "Keychain Access" of Mac . To make a backup copy of the certificate, follow these instructions.
Access "Finder", "Applications", "Utilities", "Keychain Access".
In the "My certificates" section of "Login", the certificate will appear. To make the copy, select the certificate and click on "File", "Export items" or "Export items", depending on the version.
Enter a name and location. Under "File format" the option "Personal information exchange (.p12)" should be displayed. Click "Save."
Enter and confirm a password to protect the copy. Then press "OK".
The file obtained will have the extension .p12.
If you cannot export the certificate or it does not work correctly, you will have to obtain an electronic certificate again.