Networks

HTTP/HTTPS

Contributors

Christian Bien

tutorial.png

one.png
What is HTTP?
Slide1.jpeg

Hypertext Transfer Protocol (HTTP) defines how data packets are communicated between a device and a web server and what actions a device and web server should take in response to the data packets.

For example, if you want to access the website lifehacker.com.au, you would have to enter HTTP which tells the web browser that this address is a web server. The device sends data packets communicated via HTTP to which the server responds back with data packets showing the website.


Nowdays, web browers automatically put the HTTP/HTTPS when you enter a URL without the HTTP/HTTPS. While you may not be able to see it, it is still there! 

two.png
Why does HTTPS have a 'S'?
Slide2.jpeg

Some URLs have HTTPS instead of HTTP. Hypertext Transfer Protocol Secure (HTTPS) simply means there's a secure channel where the regular HTTP process has taken place but data packets are encrypted through public key infrastructure. Encryption involves a private key known by you and the web server and a public key obtained off the web, to ensure data packets can only be read by the sender and its intended recipient.


HTTPS is useful when transferring sensitive data such as personal information or money transfers.

For example, an online banking website, such as Commbank, would use HTTPS. If you were to do some online banking on the Commbank website HTTPS represents a secure channel for data packets to be sent directly from your device to the Commonwealth Bank's web servers. Information is encrypted and cannot be read by intruders such as hackers and can only be read by the bank and you.

Topic Menu
Introduction to Networks
TCP/IP
HTTP/HTTPS
Communication Standards (Ethernet & Wireless)
Network Security Measures

Want your ATAR notes to empower over 77,000 students per year?

Logo-New-Large.png

Join the Team.
Empower Education.

three.png

Sign Up for Free to Read More 

Get instant access to all content and subscribe to our weekly email list on study tips, opportunities and other free resources. 

It only takes a minute...

Slide3.jpeg
four.png
Slide4.jpeg
five.png
Slide5.jpeg
six.png
Slide6.jpeg
157-seven.png
Slide1.jpeg
156-eight.png
Slide8.jpeg