Communication protocols 2. HTTP Hypertext Transfer Protocol, is the protocol of World Wide Web (www) Client web browser Web server Request files Respond.

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Presentation transcript:

Communication protocols 2

HTTP Hypertext Transfer Protocol, is the protocol of World Wide Web (www) Client web browser Web server Request files Respond

HTTPS: when sending confidential information over the internet the web server uses a protocol called HTTP over SSL Secure Sockets Layer.

Digital certificates: to certify the identity of the website your browser is communicating with. But they can be fake

How HTTPS works The browser checks the site’s certification The web server and your browser determine the encryption types that they can both use to understand each other Your browser and the web server send each other unique codes to use when encrypting the information being send Your browser and the web server start talking to each other using the encryption

Explain how encryption help to keep data secure Turing data into a secret code using a key. Only someone with the key can read the data

Which one of these protocols would be used to upload a podcast to a blog? HTTP SMS POP IMAP