Security and Cryptography

Welcome to this lecture on Security and Cryptography, part of the Advanced C# Programming course. In this session, we explore essential security principles and cryptographic techniques used to protect modern C# applications. Learners will examine how to safeguard sensitive data, verify user identities, and enforce proper permissions. The lecture covers the foundations of data protection, distinguishing between readable data protection methods and irreversible data integrity checks, as well as the mechanics of symmetric and asymmetric encryption paired with cryptographic keys. By the end of this lecture, learners will understand how to secure communication channels using TLS, implement robust identity management and access control systems, apply digital signatures, and follow secure coding practices to prevent vulnerabilities. Key topics covered: Authentication and Authorization Encryption, Hashing, and Cryptographic Keys Symmetric and Asymmetric Encryption Digital Signatures and Secure Coding TLS, Identity Management, and Access Control