Chapter 6. Cryptography - IBM z13s Technical Manual

Cryptography
Chapter 6.
This chapter describes the hardware cryptographic functions that are available on IBM z13s
servers. The CP Assist for Cryptographic Function (CPACF) with the Peripheral Component
Interconnect Express (PCIe) cryptographic coprocessors offer a balanced use of processing
resources and unmatched scalability.
This chapter provides a short introduction to the principles of cryptography. It then looks at the
implementation of cartography in the hardware and software architecture of z Systems,
followed by a more detailed description of the features the IBM z13s servers are offering. The
chapter concludes with a summary of the cryptographic features and the software required.
This chapter includes the following sections:
Cryptography in IBM z13 and z13s servers
Some fundamentals on cryptography
Cryptography on IBM z13s servers
CP Assist for Cryptographic Functions
Crypto Express5S
TKE workstation
Cryptographic functions comparison
Cryptographic software support
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