Table of Contents:
About Utimaco 5
Introduction 9
About This Book 9
Foolish Assumptions 10
Icons Used in This Book 10
Beyond This Book 10
Chapter 1 Quantum Computing Threat 13
Cryptography Today 13
Quantum Computers 14
Grover’s Algorithm 15
Shor’s Algorithm 16
Chapter 2 Challenges Ahead 19
Analysis 19
Trust 19
Metrics 19
Parameters 20
Efficient schemes 20
Implementation 21
Efficient implementations 21
Secure implementations 21
Migration 21
Agility 22
Caveats 22
Compatibility 22
Education 23
Standardization 23
Legislation and regulation 23
Chapter 3 Families of Post-quantum Schemes 25
Code-based Cryptography 26
Lattice-based Cryptography 28
Hash-based Cryptography 30
Multivariate Cryptography 32
Supersingular Elliptic-curve Isogeny Cryptography 36
Comparison of Post-Quantum Schemes 37
Signatures 37
Public-key encryption 37
Key exchange 38
Chapter 4 Be Prepared 39
Why You Need to Act Sooner Rather Than Later 39
Raising Hybrids 41
Symmetric Crypto to the Rescue 42
Tried-and-true cryptography 43
Your phone does it 43
Kerberos 44
One size does not fit all 45
Chapter 5 Hardware Security Modules 47
Don’t Lose Your Keys 48
TPMs 48
HSMs 48
Implementing Post-Quantum Cryptography Today 49
Five Things to Keep in Mind about HSMs 51
An SDK is a must-have 51
Do as the PQC experts do 52
Services available, all along the way? 52
Simulators rock 52
Hybrid solutions 53
References 55
Index 61
