March 05, 2025

Cryptography and Network Security: Principles and Practice

13 minutes

This Book is excerpt from William Stallings' book, Cryptography and Network Security: Principles and Practice, seventh edition. The excerpt covers a broad range of cryptographic concepts and techniques, including number theory fundamentals, classical and modern encryption algorithms (DES, AES, and others), public-key cryptosystems (RSA, Diffie-Hellman, Elliptic Curve Cryptography), cryptographic hash functions (SHA, SHA-3), message authentication codes (MACs), digital signatures, key distribution, user authentication, and network security protocols (IPsec, TLS, Kerberos, and others). The text also includes examples and problems to aid in comprehension and provides a framework for understanding the practical applications of these concepts in various contexts. Finally, it features appendices with Sage examples illustrating the implementation of some of the algorithms.

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