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.

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