SSL Certificates are small data files that digitally bind a cryptographic key to an organization’s details. When installed on a web server, it activates the padlock and the https protocol and allows secure connections from a web server to a browser.
Typically, SSL is used to secure credit card transactions, data transfer and logins, and more recently is becoming the norm when securing browsing of social media sites.
How Does an SSL Certificate Work?
This particular kind of cryptography harnesses the power of two keys which are long strings of randomly generated numbers. One is called a private key and one is called a public key.A public key is known to your server and available in the public domain.
If Alice is sending a message to Bob she will lock it with Bob’s public key but the only way it can be decrypted is to unlock it with Bob’s private key.
Why Do I Need An SSL Certificate?
SSL Certificates protect your sensitive information such as credit card information, usernames, passwords etc. It also:
Where Do I Buy An SSL Certificate?
SSL Certificates need to be issued from a trusted Certificate Authority. Browsers, operating systems, and mobile devices maintain list of trusted CA root certificates.
The Root Certificate must be present on the end user’s machine in order for the Certificate to be trusted. If it is not trusted the browser will present untrusted error messages to the end user.