The Integrated Cryptographic Service Facility or ICSF is the system component that provides
the interface to the hardware. As new functions are implemented in hardware, new versions
of ICSF are made available to exploit those functions. ICSF is available as a component of
z/OS. The most current versions are available at:
http://www.ibm.com/servers/eserver/zseries/zos/downloads/
A number of crypto instructions are now available in the CP and can be coded directly in an
application. However most of the crypto functions can only be accessed by using the ICSF
Application Programming Interfaces (APIs). The API passes the cryptographic request to
ICSF, which determines what hardware is available and which device can best service the
request. The ICSF Application Programmer’s Guide provides a table that describes the
hardware that is required to support the APIs.
the interface to the hardware. As new functions are implemented in hardware, new versions
of ICSF are made available to exploit those functions. ICSF is available as a component of
z/OS. The most current versions are available at:
http://www.ibm.com/servers/eserver/zseries/zos/downloads/
A number of crypto instructions are now available in the CP and can be coded directly in an
application. However most of the crypto functions can only be accessed by using the ICSF
Application Programming Interfaces (APIs). The API passes the cryptographic request to
ICSF, which determines what hardware is available and which device can best service the
request. The ICSF Application Programmer’s Guide provides a table that describes the
hardware that is required to support the APIs.
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