Introducing Transport Layer Security

- [Instructor] Transport Layer Security is a common way … to secure data transactions on the internet. … We'll see the various components that help ensure … data confidentiality and integrity. … We can apply encryption protocols in several places … to ensure the security of data. … At the Application layer, the Network layer … and the Transport layer. … Transport Layer Security is also called … Secure Socket Layer or SSL. … SSL is the original protocol. … We use Transport Layer Security today, … as it is an improved protocol. … The term secure socket comes from the fact … that a socket is an IP address and a port address. … And it's created at the transport layer of the OSI model. … Transport Layer Security is designed to make use … of TCP to provide a reliable end-to-end secure service. … Transport layer is above TCP … and below the application layer. … It's not a single protocol, but two layers of protocols. … The Handshake protocol uses asymmetric encryption … to establish a shared secret key between the client …