Post-Quantum Crypto for Dummies, Utimaco Special Edition (Custom)

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