While you are searching your query on web, you might have seen websites having HTTP while some have HTTPS in their URL. Websites having HTTPS (Hypertext Transport Protocol Security) adds encryption and authentication to websites. This is done by SSL Certificate which helps in securing websites.
SSL certificate has various benefits in SEO and protects websites from all type of malicious attacks from intruders. It is also considered as one of the website ranking factors in search engines. Recently Google has declared that you must have SSL certificate Installed in your website. So why SSL certificate is important that it is kept mandatory? Before knowing the importance of SSL certificates lets study what exactly is SSL Certificate?
What Is SSL Certificate?
SSL stands for Secure Socket Layer. SSL Certificates validate your website’s identity, and encrypt the data visitors send to, or receive from, your site. This keeps thieves from spying on any exchange between you and your users.
Here is an example of SSL installed in cloudways
Secure Socket Layer (SSL) is that the standard security technology for establishing an encrypted link between an internet server and a browser. This secure link ensures that all information transferred remains personal. It’s also known as TLS (Transport Layer Security). Lot of websites uses SSL encryption everyday to secure connections and keep their viewer’s data safe from monitoring and meddling.
When an SSL Certificate protecting your website, your clients will rest assured that the data they enter on any secured page is personal and cannot be viewed by cyber crooks.
The SSL Certificates are small-scale data documents that digitally bind a cryptographical key to the corporation’s details. Once installed on an online server, it activates the padlock and therefore the https protocol and permits secure connections from an online server to a browser.
Why You Need SSL Certificate?
This is vital as a result of the data user forward the net is passed from computer to computer to induce to the destination server. Any system in between user and the server will see user’s credit card numbers, usernames and passwords, and different sensitive data if it’s not encrypted with an SSL certificate.
One of the vital factors of making a successful online business is trust of consumers. One of the way to accomplish this is often by securing your website with SSL Certificates, ensuring that all your client information and personal data are transmitted safely between your web server and user browsers.
SSL Certificates protect your sensitive data and It also:-
- Secure Connection: Keeps secure connection between the browser and the server of the website they’re visiting.
- Performance: modern SSL will really improve page load times and conversion rates.
- Search Ranking Boost: Search engines favour HTTPS websites and will increase your Google Rankings.
- Web Security: Encrypting the site’s traffic with SSL that ensures no one will snoop on your client’s information.
- Trustworthy: By displaying a green padlock within the browser’s address bar, SSL can increase visitor’s trust.
- Regulatory Compliance: SSL could be a key element in PCI compliance.
How SSL Helps In Securing Websites?
Let’s see how SSL encryption works and how it will shield your information from sniffers. We’ll continue with a similar situation as before, wherever you’re attempting to log in to your Facebook account along with your email and password. Keep in mind that now you’re work in to Facebook over an HTTPS connection that’s secured by an SSL certificate.
SSL certificates uses asymmetric Public Key Cryptography, or a Public Key Infrastructure (PKI) system. A PKI system uses 2 totally different keys to encrypt communications:-
Private key – The private key should be kept strictly protected and may only be accessible to the owner of the private key. With an internet site, the private key should be kept secure on the net server.
Public key – A public key is supposed to be distributed to anyone that has to be able to decrypt data that was initially encrypted with the private key.
Anything that’s encrypted with the public key will only be decrypted by the corresponding private key and vice-versa.
SSL is secure certificate that provides 3 layers of protection:
- Encryption- It means all information sent between a browser (client) and an internet site (server) are encrypted so that even if information are stolen or intercepted a hacker won’t be able to decrypt them.
- Data integrity – Data Integrity guaranteed that user’s information can not be changed or corrupted during transfer without being detected.
- Authentication – It verifies whether you’re really communicating with the intended website. To make sure your communications are safe, you’ll search for a special green padlock in your browser’s URL bar that indicates whether or not an internet site is secure.
Step by step method to securing an internet site through SSL Certificate:-
- Establish a secure communication between the server and also the browser by means that of a handshake. The handshake method starts once the browser makes a URL request (for eg, enter “https://www.facebook.com/” into your address bar). By sending this URL request, the user initiates a secure SSL connection between the user’s browser and a server sending communication choices like version and kind of encryption. The user’s sending a request to initiate an SSL connection is named a client hello.
- The next step is named a server hello. After received the user’s request, the server responds by sending a copy of its SSL certificate along with its public key.
- As soon as the consumer receives this information back from the server, the browser verifies whether it implicitly trusts the certificate or whether the certificate will be verified by one of many Certificate Authorities (CAs) that the browser will implicitly trust. This technique works as a result of every browser has a pre-installed list of trustworthy SSL certificates from Certificate Authorities that you simply will view, add, and remove. Those certificates are controlled by a centralized group of security organisations. If a server presents a certificate from the browser’s list, then it knows that the website will be trustworthy. While validating an SSL certificate, the browser additionally creates a unique symmetrical public key using the public key sent by the server. At that time user’s information are finally encrypted.
- A Server sends back an acknowledgement. When receiving this acknowledgement, the server and user initiate an SSL encrypted session. This is how SSL provides authentication.
- Currently that an SSL session has been established, the user and a server will share previously encrypted information safely. The symmetrical key was created during this method is exclusive to the actual SSL session, and might be used to encrypt or decrypt information exchanged between the client and server during that session.
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