If your installation uses the cryptographic product, Programmed Cryptographic Facility (PCF), ICSF helps you migrate PCF applications to ICSF. You can run PCF applications on ICSF to gain the enhanced performance and availability of ICSF and to test ICSF. Eventually, you should convert these applications to use ICSF services, rather than the PCF macros.

During migration, you can run PCF applications on ICSF because ICSF continues to support the PCF macros (GENKEY, RETKEY, EMK, and CIPHER). If GENKEY or RETKEY macro exits exist, you should reevaluate their applicability to ICSF. If an exit performs a necessary function, you need to rewrite the exit for ICSF. Exits exist for the compatibility services on ICSF.

If a PCF application uses a key in the PCF cryptographic key data set, you must convert the key to an ICSF cryptographic key data set before you run the PCF application on ICSF. ICSF provides a program to make this conversion.