Codesign really slow since updating to sierra 10.12.1

For those who don't have many certificates and are still experiencing this issue, I fixed it by following the advice at the end of the stackoverflow link:

Edit ~/Library/Preferences/com.apple.security.plist and make sure that there is only one entry. I had 6 or 7 duplicate paths for the same login keychain. Removing the duplicate entries fixed the issue for me!

You need more points. This helped me greatly. 2300+ duplicate certificates. Removing them took my build time from 2hours to 21 minutes.

I updated to Sierra (10.12.2) a few days ago and still looking for answers for this...

I don't have multiple certificates, and there is no com.apple.security.plist file in my Preferences folder.

There are 3 other files:

com.apple.security.cloudkeychainproxy3.keysToRegister.plist

com.apple.security.KCN.plist

com.apple.security.revocation.plist

Checking inside those I didn't find something useful or seemingly relevant.

Any ideas?

Updating to XCode 8.3 has fixed this problem. 🙂