Apple Encrypted Archive is a proprietary archive format that can compress, encrypt, and/or sign a file.
Its magic number is the 4 ASCII characters "
macOS Monterey ships an
aea command line tool that can create and extract (decrypt) these archives (see aea manpage).
They can also be handled with public Swift API and private C API in
It's notably used since iOS 15 for signed .shortcut files created in Shortcuts.