Cryptographic key data set entry retrieval installation exit

The cryptographic key data set entry retrieval installation exit (CSFCKDS) is called when a service requests an entry from the in-storage cryptographic key data set (CKDS) by label. ICSF calls this exit after it finds the record in the CKDS and before it returns the record to the service.

Note: This exit is given control only for a fixed-length record CKDS. The exit does not work with the variable-length record format of the CKDS.