![]() ![]() Additionally, some subsystems track identities and some don't. In general, most subsystems do not care that your identity certificate chain leads to a trusted anchor, however, some do. You have to ask based on the subsystem, and it is more meaningful to ask whether a specific subsystem trusts your signature. ![]() Thus, it makes no sense to ask whether code signing trusts a particular signature. Each macOS subsystem has its own policy, and makes this determination separately. A security trust policy determines whether a particular code identity, which is essentially the designated requirement (DR) for the code, should be accepted for allowing something to happen on the system, e.g., access to a resource or service, after testing for validity. However, policy is mostly set by the specific subsystem carrying out validation any policy decisions outside of those implemented by macOS subsystems are left up to you and your end users in how you interoperate between a specific set of subsystems. Code signing does implement some policy checks. In short, code signing is a technology that allows you to dictate how validating mechanisms will interpret your code. While tools like Xcode handle much of the certificate management, you can also maintain your signing certificates yourself if your situation calls for it. Most code signing certificates are provided by Apple or internally provisioned by enterprise IT departments. ![]() Apple provides the tools necessary to sign your programs (see the codesign manual page).Ĭode signing on macOS is an integral part of the development process. Document Revision History Code Signing RecapĬode signing is a facility by which developers can assign a digital identity to their programs. ![]()
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