The SSL certificate is a cryptographic protocol which provides communication security over the internet. When a sender sends information over the internet, SSL helps to protect such information with robust encryption. Therefore, outsiders or hackers cannot intercept the information and user’s data remains safe and secure over the internet. Many certificate authorities issue the SSL certificate that is equipped with up to 256-bit encryption and 2048-bit RSA key. Since the SSL came into existence, the size of the encryption is increasing periodically like 40-bit, 56-bit, 128-bit, 192-bit, and 256-bit encryption. The CAB forum (certificate authority bureau) changes the algorithm of SSL standards occasionally.
What happens when a Web browser connects to an SSL-secure Web site?
· The first step is that the browser attempts to connect to the website.
· The browser demands the Web server to confirm whether the website is equipped with SSL security or not.
· The server of the site transmits a copy of the SSL certificate for the visitor’s web browser confirmation.
· The next step is confirmation of the SSL security certificate.
· The browser assures that the certificate sent by the SSL web server is trustworthy.
· If the certificate is confirmed, it transmits a message to the web server.
· However, if it fails, the browser makes a warning and stimulates the user to authorize or deny the legitimacy of the web server certificate.
There are different types of SSL certificates; for example, domain validation, organization validation, EV certificate, SGC certificate, and Code Signing Certificate. Each certificate is used for different purpose.
Domain Validation: Domain Validation is a primary domain certificate that comes with easy installation process. It is a cost saving certificate and available at low-cost in the market.
Organization Validation: The Certificate authority issues business validation certificate after the verification of business documents. It boosts confidence of customers and proves web site’s legitimacy.
EV Certificate: EV certificate also called “Green Bar Certificate” that turns your address bar into a green bar and provides protection against phishing and online attacks. Many companies and institutions prefer an EV certificate for their website security.
SGC Certificate: If you have an old browser version which is not capable of handling 256-bit encryption then SGC Certificate helps to offer strength to your old browser version.
Code Signing Certificate: Code Signing helps software developers in signing software code. It assures that software code is legitimate and not altered.
Before selecting a proper SSL security, the website owner has to decide the type of SSL Certificate, cost, after service, money back guarantee, authenticity of SSL provider authority.
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