Abstract: With the availability of the latest microcode on the z10 and the latest version of ICSF (FMID HCR7770) IBM cryptographic hardware supports three types of keys. Understanding the difference between the three will help in designing the right cryptographic solutions and in determining the hardware requirements for the cryptographic work. This paper describes the basic differences between clear key, secure key and protected key, and is an introduction to how the hardware provides additional protection for secure keys.
Classification:
Hardware; Software
Category:
Security
Platform(s):
IBM System z Family
S/W Pillar(s):
System z
O/S:
z/OS
Keywords:
Crypto, clear key, secure key, secure, clear, key
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