The Apple notary service requires submitted app bundles to be configured to use the hardened runtime libraries. This is configured at signing time, and supported by the signapple tool Bitcoin Core uses for reproduceable signed binaries. We simply need to pass "--hardened-runtime" when the signature is created. Once attached to the bundle, the resulting codesigned binary can be successfully submitted to the Apple binary notarization service by any Apple Developer.
Also change the mac filename to match
The procedure remains the same, but now there's a nifty script to automate
the signing process.
Future steps:
- Build osslsigncode in the gitian-win descriptor so that the signer itself is
deterministic.
- Verify in the gitian-win-signer descriptor that the expected cert chain was
used.
Rather than fetching a signature.tar.gz from somewhere on the net, instruct
Gitian to use a signature from a tag in the bitcoin-detached-sigs repository
which corresponds to the tag of the release being built.
This changes detached-sig-apply.sh to take a dirname rather than a tarball as
an argument, though detached-sig-create.sh still outputs a tarball for
convenience.
