Books like Understanding cryptography by Christof Paar

Simon Singh traces the sweeping history of cryptography, from Mary Queen of Scots to Navajo Code Talkers and the Internet’s secure commerce, revealing how secrecy has shaped wars, nations, and technology.

This self-contained introduction to modern cryptography emphasizes the mathematics behind the theory of public key cryptosystems and digital signature schemes. The book focuses on these key topics while developing the mathematical tools needed for the construction and security analysis of diverse cryptosystems. Only basic linear algebra is required of the reader; techniques from algebra, number theory, and probability are introduced and developed as required. The book covers a variety of topics that are considered central to mathematical cryptography. Key topics include: * classical cryptographic constructions, such as Diffie-Hellmann key exchange, discrete logarithm-based cryptosystems, the RSA cryptosystem, and digital signatures; * fundamental mathematical tools for cryptography, including primality testing, factorization algorithms, probability theory, information theory, and collision algorithms; * an in-depth treatment of important recent cryptographic innovations, such as elliptic curves, elliptic curve and pairing-based cryptography, lattices, lattice-based cryptography, and the NTRU cryptosystem. This book is an ideal introduction for mathematics and computer science students to the mathematical foundations of modern cryptography. The book includes an extensive bibliography and index; supplementary materials are available online.

A practical guide that explains modern encryption’s core mathematics and tools—from authenticated encryption to RSA and elliptic curves—while covering TLS, quantum threats, implementation pitfalls, and how to choose secure protocols.

An accessible, rigorous textbook on modern cryptography covering private‑key and public‑key systems, block cipher design, and proof‑based security models.