Transitioning to Quantum-Safe Cryptography on IBM Z

An IBM Redbooks publication

Published 19 July 2022, updated 30 April 2023

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ISBN-10: 0738460680
ISBN-13: 9780738460680
IBM Form #: SG24-8525-00
(190 pages)

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Authors: Bill White, Didier Andre, Gregg Arquero, Ritu Bajaj, Joe Cronin, Anne Dames, Henrik Lyksborg, Alexandra Miranda, Maxwell Weiss


As cyberattacks continue to increase, the cost and reputation impacts of data breaches remain a top concern across all enterprises. Even if sensitive data is encrypted and is of no use now, cybercriminals are harvesting that data because they might gain access to a quantum computer that can break classical cryptographic algorithms sometime in the future. Therefore, organizations must start protecting their sensitive data today by using quantum-safe cryptography.

This IBM® Redbooks® publication reviews some potential threats to classical cryptography by way of quantum computers and how to make best use of today’s quantum-safe capabilities on the IBM Z platform. This book also provides guidance about how to get started on a quantum-safe journey and step-by-step examples for deploying IBM Z® quantum-safe capabilities.

This publication is intended for IT managers, IT architects, system programmers, security administrators, and anyone who needs to plan for, deploy, and manage quantum-safe cryptography on the IBM Z platform. The reader is expected to have a basic understanding of IBM Z security concepts.

Table of contents

Chapter 1. Cryptography in the quantum computing era
Chapter 2. The journey to quantum protection
Chapter 3. Using quantum-safe cryptography
Chapter 4. Getting ready for quantum-safe cryptography
Chapter 5. Creating a cryptographic inventory
Chapter 6. Deploying quantum-safe capabilities
Appendix A. Finding cryptographic attributes
Appendix B. Generating quantum-safe keys
Appendix C. Translating plain text into cipher text
Appendix D. Generating and verifying digital signatures
Appendix E. Creating a hybrid quantum-safe key exchange
Appendix F. Generating a one-way hash

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