SSL (Secure Sockets Layer) Protocol secures millions of peoples’ data on the Internet every day, especially during online transactions or when transmitting confidential information.
Here, you should know about SSL Certificates and SSL Encryption.
What is SSL?
SSL (Secure Sockets Layer) is the standard security technology for establishing an encrypted link between a web server and a client. This link ensures that all data passed between the web server and browsers remain private and integral.
SSL allows sensitive information such as credit card numbers, social security numbers, and login credentials to be transmitted securely. Normally, data sent between browsers and web servers is sent in plain text—leaving you vulnerable to eavesdropping. If an attacker is able to intercept all data being sent between a browser and a web server they can see and use that information.
More specifically, SSL is a security protocol. Protocols describe how algorithms should be used; in this case, the SSL protocol determines variables of the encryption for both the link and the data being transmitted.
What is an SSL Certificate and how does it Work?
SSL Certificates have a key pair: a public and a private key. These keys work together to establish an encrypted connection. The certificate also contains what is called the “subject,” which is the identity of the certificate/website owner.
To get a certificate, you must create a Certificate Signing Request (CSR) on your server. This process creates a private key and public key on your server. The CSR data file that you send to the SSL Certificate issuer (called a Certificate Authority or CA) contains the public key. The CA uses the CSR data file to create a data structure to match your private key without compromising the key itself. The CA never sees the private key.
Once you receive the SSL Certificate, you install it on your server. You also install a pair of intermediate certificates that establish the credibility of your SSL Certificate by tying it to your CA’s root certificate. (The instructions for installing and testing your certificate will be different depending on your server.)