Among the security measures imposed by Apple in recent years, we find in good place the signature of apps intended for Mac. The principle is to associate each macOS app with a certificate provided by Apple, with the possibility of revoking this certificate in the event of a problem. Signed apps can be opened directly, without having to bypass Gatekeeper protections.
Code Signing (free) is an app that allows you to verify the signature of all apps and other files. Just drag an element into its sidebar and click on it to validate the signature in seconds or know that there is a problem somewhere. This verification procedure could be performed in the terminal with a command line, but the interface of this utility is more user-friendly.
Besides the signature part, Code Signing displays many other information about the apps, for example if it is a universal package with Intel and Apple Silicon code, or an app that only works on one platform. -form. When an app accesses private data, whether it’s files, contacts, or the Mac’s webcam, you’ll also be able to see the permissions in the app.
Code Signing is a niche tool, but it can be useful to reassure yourself about an app of unknown origin. Since it’s free and has no ads or in-app purchases, you risk nothing by trying it. It is provided only from the Mac App Store, it requires macOS 11 at least and it is not translated into French.