Cryptography Made Easy: Cybersecurity Foundations, CIA Triad & Key Algorithms Explained(Chapter 1)

The first chapter in a series detailing cryptography and cybersecurity foundations, presented by Saeed Tabar, Director of MIS at the University of West Georgia. This 42-minute lecture establishes essential concepts for understanding information security, focusing on what cybersecurity mechanisms protect, primarily devices, networks, applications, and data. Key topics covered include a thorough explanation of the CIA Triad—Confidentiality, Integrity, and Availability—which serves as the bedrock for security systems, alongside supporting concepts like Authenticity, Accountability, and Nonrepudiation.

The content further differentiates between threats and attacks, categorizes attacks as passive versus active, and illustrates how security services and mechanisms operate in tandem for system defense. A fundamental introduction to cryptography families is also provided, detailing basic cryptographic algorithms necessary for cybersecurity competence.