Re: Installer pkg built with Xcode 12.2 won't open in macOS 10.10 and 10.11

Marco S Hyman

Supported encryption algorithms have nothing to do with hardware architecture. They are purely software. There is no reason that an M1 machine can’t generate a SHA-1 hash.
Except that SHA-1 is “fully and practically broken for use in digital signatures”.

I don’t see Apple or anyone else add SHA-1 to anything at this late date.

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