HTTP and HTTPS What is the difference

Publicado em: 04 Julho 2021
no canal de: Rudra Prayag Pandey

The Terminology
HTTP and HTTPS What is the difference

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HTTP and HTTPS are terms that most web browsers recognize. However, the two differ in how they communicate. While HTTP is often confused with HTTP hello, which is a method of sending hello to someone on the Internet, it is actually an extended Hypertext Transfer Protocol, better known as HTTPS. It's commonly used on the Web and is often used for secure online communication over a public computer network.

Why is this important?

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To understand why it's important to encrypt sensitive information with SSL/TLS, you must first understand how HTTP gets its start. When web developers create a web page, they may include some kind of "server" code. This code, called a "protocol handler", receives requests from end users and sends the request to the right program/software. The program or software then parses the request, converts it into a form appropriate for the server's needs, and send back the result back to the end user.

How HTTP and HTTPS works?

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In simple terms, when you visit a website, the browser will request information from the website through an HTTP request, and it will then send that request to the website's "protocol handler". Once the information has been received and decoded, your browser will then check to see if the site's underlying server supports Secure Socket Layer or Secure Sockets Layer, and if it does, it will decrypt and make the proper SSL/TLS connections. If it doesn't, your browser will fail the request, and then it will return an error message. If you have sensitive information sent through an HTTP request, you need to make sure that the site is using an https connection.

HTTP and HTTPS issues
A major problem associated with the HTTP and HTTPS is when users don't know how to read and use the secure connection feature. You may encounter a scenario where a person enters their bank card number or other sensitive information into a website. Before the person can proceed with making a transaction, the website's server will ask them to connect to a secure socket layer before proceeding. The problem is that people often think that they are "HTTPS ready" when they actually aren't. Even when you've entered your sensitive information into a website that is 'HTTP secure' (and has a visible secure lock icon), you may not be viewing it safely on other computers because the browser doesn't yet know how to make an HTTP connection to the website.

So how to resolve this issue?

Some browsers have a feature called session keys; this is essentially a secret pair of numbers that you create using your login details. When you save these session keys onto a computer that isn't on the network, you'll be asked to add them - and then use the session keys to encrypt https traffic that comes back to you.

Other Options

The other option is to turn off the ability for users to see which websites can read and process Https. There are several different ways to do this, including: using the -http-only flag in the HTTP settings, using the http only keep Alive flag on the Apache configuration file, and using curl http only keep Alive flag. Most of these methods will make your browser behaves exactly as if you had enabled the http only keep Alive flag; the only difference will be that when you visit a website that implements Https, you won't see a visible URL prompt. This way, you can rest assured that any http requests made to websites that support the Hypertext Transfer Protocol will be readable and correctly treated by most web browsers.

Best Practices

A good approach to preventing leaks from HTTP and HTTPS is to implement the Secure Socket Layer (SSL) and the Digest algorithm. The SSLv2 protocol makes the SSL handshake exchange a two-step process that verifies the integrity of the destination URL before allowing any Push notifications to be pushed.

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