Cryptography and Network Security

Detailed coverage of classical and modern cryptographic algorithms, including symmetric, asymmetric, and hash-based techniques. Comprehensive explanation of key distribution, authentication protocols, and digital signatures. In-depth discussion of network security architectures, firewalls, intrusion detection systems, and security mechanisms. Exploration of emerging areas such as post-quantum cryptography, zero-trust security, blockchain-based security models, and secure multiparty computation. Analysis of vulnerabilities, attack strategies, threat modelling, and risk management practices. Case studies and real-world examples illustrating practical applications of cryptography and network defense strategies. Emphasis on secure system design, implementation challenges, and best practices for protecting digital environments. Suitable for students, educators, cybersecurity professionals, and researchers in information systems and computer networks.