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Chapter 6. Cryptography

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

IBM z13s User Manual

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