How to retrieve UID value from certificate retrieved from keychain in Mac

I have a Mac application.


In this app, I have a requirement to retrieve certificate data (common name, UID) from the certificates retrieved from keychain.

I managed to retrieve common name using method SecCertificateCopyCommonName.


Can anyone please guide me how to retrieve UID from certificate data?

How to retrieve UID value from certificate retrieved from keychain in Mac
 
 
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