internal/

Package cocoa is the small part of the Objective-C runtime that package keychain needs: building NSString, NSData and NSDictionary values, reading bytes back out, and running work inside an autorelease pool.

Package keychaintest builds a throwaway Keychain holding generated code-signing identities, so that tests can exercise the real Security framework without touching, or prompting for, the developer's own keychain.

Package plist encodes Go values as XML property lists, which is all a bundle build needs of the format: Info.plist is written, never read.