Your installation may use Programmed Cryptographic Facility (PCF). ICSF provides key types that are similar to the PCF key types and provides other key types for enhanced key separation and more functions. You cannot use a PCF key on ICSF, but you can convert a PCF key into an ICSF key. Table 1 lists which ICSF key types correspond to the PCF key types.

ICSF provides compatibility modes and a conversion program to help you run PCF with ICSF and to migrate from PCF to ICSF. The conversion program converts PCF keys to ICSF keys. For information about migration from PCF to z/OS ICSF, see z/OS Cryptographic Services ICSF System Programmer’s Guide.