PKI - trust & chain of trust -why, who and how?

What is public key infrastructure? What is trust? Why do we need trust over the Internet? Who should be trusted? In this video, I will talk about two trust models: Hierarchical Trust Model and distributed trust model, and how they help us to build trust with strangers over the Internet so that we could be able to do business online. I will use an example how these models work. Playlist: Advanced Cryptography - Playlist: Basic Cryptography Please subscribe to my channel! Please leave comments or questions! Many thanks, Sunny Classroom