z/OS Cryptographic Services Integrated Cryptographic Service Facility Administrator's Guide

ICSF is a software product that works with the hardware cryptographic feature and the z/OS Security Server (RACF element) to provide secure, high-speed cryptographic services in the z/OS environment. ICSF provides the application programming interfaces by which applications request the cryptographic services. The cryptographic coprocessor is secure, high-speed hardware that performs the actual cryptographic functions. The cryptographic feature available to your applications depends on the server or processor hardware.