SSL Certificates ,What is SSL?
SSL Certificates are fundamental to internet security. They are used to establish an encrypted connection and allow data to be transmitted securely between a browser or user’s computer and a server or website.
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.
SSL Certificates bind together:
- A domain name, server name or hostname.
- An organizational identity (i.e. company name) and location.
Note: As of August 2020 most browsers will no longer display the green padlock and address bar to indicate Extended Validation.
An organization needs to install the SSL Certificate onto its web server to initiate a secure session with browsers. Once a secure connection is established, all web traffic between the web server and the web browser will be secure.
When a certificate is successfully installed on your server, the application protocol (also known as HTTP) will change to HTTPS, where the ‘S’ stands for ‘secure’.
Why Do I Need an SSL Certificate?
SSL Certificates protect your sensitive information such as credit card information, usernames, passwords etc. They also:
- Keep data secure between servers
- Increase your Google Rankings
- Build/Enhance customer trust
- Improve conversion rates
Where Do I Buy an SSL Certificate?
SSL Certificates need to be issued from a trusted Certificate Authority (CA). Browsers, operating systems, and mobile devices maintain lists 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. In the case of e-commerce, such error messages result in immediate lack of confidence in the website and organizations risk losing confidence and business from consumers.
Companies like Plegmahost are known as trusted Certificate Authorities. This is because browser and operating system vendors such as Microsoft, Mozilla, Opera, Blackberry, Java, etc., trust that Plegmahost is a legitimate Certificate Authority and that it can be relied on to issue trustworthy SSL Certificates. The more applications, devices and browsers the Certificate Authority embeds its Root into, the better “recognition” the SSL Certificate can provide.
How Does an SSL Certificate Work?
SSL Certificates use something called public key cryptography.
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. It can be used to encrypt any message. If Maggie is sending a message to Shara she will lock it with Shara’s public key but the only way it can be decrypted is to unlock it with Shara’s private key. Shara is the only one who has his private key so Shara is the only one who can use this to unlock Maggie’s message. If a hacker intercepts the message before Shara unlocks it, all they will get is a cryptographic code that they cannot break, even with the power of a computer.
If we look at this in terms of a website, the communication is happening between a website and a server. Your website and server are Maggie and Shara.
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