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. This means, organizations need to start protecting their sensitive data today with quantum-safe cryptography.

This IBM® Redbooks® publication looks at 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 on 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 crypto inventory

Chapter 6. Deploying quantum-safe capabilities

Appendix A. Generating quantum-safe keys

Appendix B. Translating plain text into cipher text

Appendix C. Generating and verifying digital signatures

Appendix D. Creating a hybrid quantum-safe key exchange

Appendix E. Generating a one-way hash