The private key for an S/MIME certificate is generated by the browser during certificate enrollment. When the submit button is selected, a key-pair of the selected size is generated. Once generated, the private key is encrypted and stored in the local key database.
S/MIME certificates can be applied only using Internet Explorer on Windows.
note: Safari on Mac no longer supports key generation.
Firefox version 68 and earlier can be used for this purpose.
Firefox has stopped keygen support from version 69 [ released on 3-Sep-2019 ]
https://ftp.mozilla.org/pub/firefox/releases/
Coming Soon!
In an effort to help with Code Singing and S/MIME CSR Generation on browsers that no longer support key generation, Sectigo is currently finalizing a CSR Generation Utility where you will be able to generate the CSR for the following certificate types:
- Code Signing
- SSL
You will also have the option to:
- Generate a private key on a SmartCard.
- Save the CSR to a file
Should you have any questions or concerns please do not hesitate to contact our Technical Support Team
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