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TLS: Transport Layer Security
This lecture covers the history and evolution of Transport Layer Security (TLS), from its introduction in 1995 to the latest version in 2018. It explains the importance of SSL and TLS in securing web communications, the elements of TLS, and the vulnerabilities such as downgrade attacks and future attacks. The lecture also discusses the enhancements in TLS 1.3, including the removal of old encryption methods, increased security, and forward secrecy. Additionally, it explores the role of certificate authorities in ensuring the authenticity of servers and the protection mechanisms implemented in TLS to prevent attacks.