Adding keychain sharing on a MacOS test app causes "Message from debugger: no such process."

Question

Created Apr ’21

Replies 3

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Participants 2

Hello,

I am hoping to test iOS-style keychain sharing on my MacOS test app via

kSecAttrAccessGroup
kSecUseDataProtectionKeychain
attributes

I understand that I first need to enable keychain sharing under "Signing & Capabilities", which also creates a new entitlement file. (Otherwise it will throw -34018 = errSecMissingEntitlementerror)

Then I added the keychain access group that I am interested in using also.

However, after doing so, the test app would no longer build with an error "Message from debugger: no such process."

Here's my setup

Xcode 12.4
Provisioning Profile: XCODE Managed Profile

(Mac Team Provisioning Profile) this profile says keychain sharing is enabling under capabilities & entitlement also contains keychain-access-group

Enable hardened runtime: NO
Code Signing Inject Base Entitlement: YES
Code Signing Style: Automatic
Other Code Signing Flags: --deep

Would you by any chance know what steps I am missing to enable iOS style keychain sharing on MacOS as above?

Thank you!
Peter

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Answer 1

DTS Engineer OP

Apple

Apr ’21

What you’ve described seems pretty reasonable other than this:

Other Code Signing Flags: --deep

You should not use --deep, for reasons I outlined in --deep Considered Harmful. This is especially true in Xcode, which already does the right thing when it comes to signing each code item independently from the inside out.

If removing --deep doesn’t help, please try launching the app from the Finder. Does that work?

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

0

Answer 2

peterLeeMS OP

Apr ’21

Thank you, eskimo.
I tried both, and neither worked :(

0

Answer 3

DTS Engineer OP

Apple

Apr ’21

OK. Launching from the Finder should have trigger the system to generate a crash report. Please post that here.

Use the text attachment feature (the paperclip icon) to avoid clogging up the timeline.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

0