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Post-quantum cryptography
Quantum computers will break today's most popular public-key cryptographic systems, including RSA, DSA, and ECDSA. This book introduces the reader to the next generation of cryptographic algorithms, the systems that resist quantum-computer attacks: in particular, post-quantum public-key encryption systems and post-quantum public-key signature systems. Leading experts have joined forces for the first time to explain the state of the art in quantum computing, hash-based cryptography, code-based cryptography, lattice-based cryptography, and multivariate cryptography. Mathematical foundations and implementation issues are included. This book is an essential resource for students and researchers who want to contribute to the field of post-quantum cryptography.
Contents:
Introduction to post-quantum cryptography
1 Is cryptography dead?
2 A taste of post-quantum cryptography
3 Challenges in post-quantum cryptography
4 Comparison to quantum cryptography
Quantum computing
1 Classical cryptography and quantum computing
2 The computational model
3 The quantum Fourier transform
4 The hidden subgroup problem
5 Search algorithms
Hash-based Digital Signature Schemes
1 Hash based one-time signature schemes
2 Merkle’s tree authentication scheme
3 One-time key-pair generation using an PRNG
4 Authentication path computation
5 Tree chaining
6 Distributed signature generation
7 Security of the Merkle Signature Scheme
Code-based cryptography
1 Introduction
2 Cryptosystems
3 The security of computing syndromes as one-way function
4 Codes and structures
5 Practical aspects
Lattice-based Cryptography
1 Introduction
2 Preliminaries
3 Finding Short Vectors in Random
4 Hash Functions
5 Public Key Encryption Schemes
6 Digital Signature Schemes
7 Other Cryptographic Primitives
8 Open Questions
Multivariate Public Key Cryptography
1 Introduction
2 The Basics of Multivariate PKCs
3 Examples of Multivariate PKCs
4 Basic Constructions and Variations
5 Standard Attacks
6 The Future
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