Introduction to Quantum Cryptography

Introduction to Quantum Cryptography by Thomas Vidick and Stephanie Wehner provides an accessible yet mathematically rigorous introduction to the principles and applications of quantum cryptography. The book develops the essential background in quantum computing and information theory and applies these concepts to the analysis and design of cryptographic protocols. It explores how fundamental quantum phenomena, particularly measurement, entanglement, and quantum information, can be used to construct secure information-processing schemes. A substantial part of the book is devoted to quantum key distribution (QKD), including the theoretical foundations of security and the analysis of adversarial strategies. It also covers quantum money, entanglement-based cryptographic applications, device-independent quantum cryptography, and security under different physical assumptions. Beyond key distribution, the book examines additional cryptographic tasks such as coin flipping, oblivious transfer, bit commitment, quantum encryption, and delegated quantum computation. The book combines mathematical explanations with illustrations, worked examples, quizzes, and exercises to support a gradual understanding of the subject. It is particularly suitable for advanced undergraduate and graduate students, as well as researchers in computer science, physics, mathematics, and engineering who wish to develop a solid foundation in quantum cryptography and its security principles.