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Transport Layer Security ( TLS ) and its predecessor, Secure Sockets Layer (SSL), both frequently referred to as "SSL", are cryptographic protocols that provide communications security over a computer network. ... The connection is private (or secure) because symmetric cryptography is used to encrypt the data transmitted. How does it works Though the Record protocol can be used without encryption, it uses symmetric cryptography keys, to ensure a private connection. ... Using the same handshake protocol procedure as SSL , TLS provides for authentication of the server, and optionally, the client.

SSL ( Secure Sockets Layer ) is the standard security technology for establishing an encrypted link between a web server and a browser. This link ensures that all data passed between the web server and browsers remain private and integral. How does it works ? The browser/server requests that the Web server identify itself. The Web server sends the browser/server a copy of its SSL certificate. The browser/server checks to see whether or not it trusts the SSL certificate. ... The Web server sends back a digitally signed acknowledgement to start anSSL encrypted session.

HTTP  Meaning The  Hypertext Transfer Protocol  ( HTTP ) is an application protocol for distributed, collaborative, and hypermedia information systems.   HTTP is the foundation of data communication for the  World Wide Web . Hypertext is structured text that uses logical links (hyperlinks) between nodes containing text. HTTP is the protocol to exchange or transfer hypertext. How does it works? It's inherently stateless and is request-response driven.  It operates independently of transport although it's almost always over TCP (note: google is now coming out with an HTTP over UDP version for speed - the QUIC protocol). HTTPS   Meaning The  Hyper Text Transfer Protocol Secure ( HTTPS ) is the secure version of HTTP, the protocol over which data is sent between your browser and the website that you are connected to. The 'S' at the end of HTTPS stands for 'Secure'.  It means all communications between your browser