Network Protocols (Cambridge (CIE) O Level Computer Science)

HTTP & HTTPS

What is HTTP & HTTPS?

• Hypertext Transfer Protocol (HTTP) allows communication between clients and servers for website viewing

• HTTP & HTTPS are protocols, a set of rules governing communication between devices on a network

• HTTP allows clients to receive data from the sever (fetching a webpage) and send data to the server (submitting a form, uploading a file)

• HTTPS works in the same way as HTTP but with an added layer of security

• All data sent and received using HTTPS is encrypted

• HTTPS is used to protect sensitive information such as passwords, financial information and personal data