I have an electron app and i have used electron builder with digicert. I'm able to make it work for windows. Now i'm trying to sign for mac OS using a mac computer. Can we use Digi cert to sign the app? Thanks
To sign a Mac application, (electron, or any other application) you should generate a certficate comming from apple with an apple developer account (100$/year).
If your are using electron-forge they explained in their documentation how to do it.
Electron forge uses the tools, which you can use without :
Like you, I struggled a lot at the beginning, and I give answers to my own question : https://stackoverflow.com/a/68176513/15821631
Conclusion : No you can't use your Digicert certificate (windows only), but you will have to get an Apple developper account and a generate a special certificate. Tools exist to sign an app without taking too much trouble. They are well made and well documented. The question has been asked a lot already on Stackoverflow.