ICSF provides a PCF conversion program, CSFCONV, that converts a PCF CKDS into an ICSF CKDS. The conversion program runs with certain defaults. The program converts all the entries in a PCF CKDS and converts the PCF key types into certain corresponding ICSF key types. You can use the conversion program override file to instruct the conversion program not to convert certain entries. You can also tell the conversion program to convert a PCF key type into a different ICSF key type than the default.