On: Catalina is checking notarization of unsigned executables

[_qulr]

I'm not sure what you're seeing, but that's not what I'm seeing. When I Wireshark both app notarization and script notarization, I see 2 packets of encrypted Application Data sent to Apple (567 and 101 bytes), and 1 packet of Application Data (varying length) returned from Apple, in each case. What do you see when you trace a regular app notarization check?

[usmannk → _qulr]

This is odd, my proxy doesn't seem to show this. I will try to load my root cert into Wireshark and check.

Edit: Checked and double checked: When I run a new shell script, syspolicyd just makes a connection with no application data

[_qulr → usmannk]

I'd recommend trying this: Download a notarized Mac app, delete any stapled notarization ticket (.app/Contents/CodeResources), and then trace the launch. What do you see, and does the system let you open the app? Does it say it checked for malware?

[usmannk → _qulr]

Ah I see, looks like we're not running quite the same experiment. I suspect that anything including an app bundle ID is going to see some more interesting traffic.

[_qulr → usmannk]

Don't suspect, test. ;-)

I'm running both experiments. I've tested and compared script notarization to app notarization.

You're getting apparently unusual results with script notarization. So the natural next step would be to compare against app notarization.

[usmannk → _qulr]

Agh, I think it was cert pinning. Looks like the connection is terminated if you're snooping. I see the same results as you now. Thanks!