What is an SSL certificate?

What is SSL Full Form?

SSL is an abbreviation used for Secure Sockets Layers, which is an Encryption Protocol which is being used by many websites. This protocol provides a secure connection with the website and Internet browser. It provides security to the Internet user to exchange his private data with another website. Nowadays all the online business people are using SSL Protocol so that they can secure the customers and the online transactions being done by them.

Now you must be thinking that how will you know which website has the protocol of SSL Certificate, then you must have seen that the URL of some website starts with "Http:" and some with 'Https:'. So you get to see this "S" on those websites where the user's data is kept secure, this "S" means that your connection on that website is secure and any data given by you is secure on it. And the technology that powers that "S" is called SSL.

Types of SSL Certificates?

1. Single Domain SSL Certificate: In this type of SSL certificate, we can install SSL only on our domain name. If we create sub-domains then we cannot install SSL on them. Meaning Single Domain SSL can be installed only for the domain, not for any type of subdomain.

2. Multi-Domain SSL Certificate: We can install this type of SSL on our domain as well as on all domains. Apart from this, if we have different versions of our website, then SSL can be activated on all of them.

3. Organization Validation SSL Certificate: This type of SSL is used to secure the business website. So that the customer does not have any problem in giving his personal details.

4. EV SSL Certificate: This SSL is also for business only. The address bar of the business website using this type of SSL shows green color and also shows the name of the business. This is a Highly Secure SSL Certificate.

How does SSL work?

SSL Certificate uses two types of keys, one is Public Key and the other is Private Key. Public Key is used to encrypt information and Private Key is used to decrypt information.

Suppose a user wants to get information about a topic, then he searches that topic in the browser, then the web browser connects to the server of the website and that website server is using SSL Protocol, the user can access that website server.

Requests that he should provide his information which has been searched by the user.

After the request by the user, the web server sends the public key to the webserver with the help of SSL certificate, that is, brings that data in front of us and after checking that SSL certificate, we decide that we should visit that website. Whether to give private data or not, if you want to give your private data, then it gives an encryption message to the server of the website.

After that the website's server decrypts that encryption message and then it sends an Acknowledgment to the browser to start SSL Encryption with the user, after that our private data is securely shared between that browser and the website server.