Learn about encryption fundamentals in this comprehensive video lecture. Explore various encryption methods, including key-based encryption, private key encryption, and PGP encryption. Understand the basics of encryption, cracking techniques like brute force attacks, and the differences between block and stream encryption. Dive into topics such as Diffie-Hellman key exchange, RSC, and rehashing. This lecture is part of the Introduction to Security and Network Forensics book by Prof Bill Buchanan and is included in the Security and Forensic Computing module at Edinburgh Napier University. Access additional resources, including slides and supplementary information, to enhance your understanding of encryption concepts and their applications in network security.