Is there a report showing if a digital certificate was called/used via r_datalib RACF callable service?
No reports are available to review, but you can use Top Secret tracing to keep track of user activity.
There are two Top Secret tracing options:
1. OMVSTRACE: This option can trace specific activities by an acid and/or job name. However, keeping it on for extended periods is not recommended due to processing overhead.
2. TRACE attribute: You can put the TRACE attribute on a user by running the following command:
TSS ADD(JOE) TRACE
which logs all USS activity, including certificate activity, into the SMF dataset.
Run TSSOERPT to review trace output.
Note: If SECTRACE is activated, the user's MVS SAF security activity will be traced and written to the z/OS console log.