The SSL / TLS protocol is necessary for internet communication to take place and to make it safe and secure.
Have you ever imagined whenever you visit e-commerce websites or do online shopping, your private information is stored securely? What is the technology behind online shopping, which makes a safe and robust environment for you? Let us learn about SSL and the process of encryption and different types of SSL in this article.
What is Secure Sockets Layer (SSL)?
In today’s internet world, SSL and TLS are the widely deployed protocol security layers used for the safe and high-security online experience.
It is an ideal protocol that provides a safe connection between the server and your machine on an internal network. SSL is a necessary investment that every e-commerce or online shopping websites should invest.
Well, technically speaking SSL is a secured layer that needs interaction from the end user while establishing a secured connection. Users will experience an SSL with a green bar and a padlock symbol. Moreover, users will observe the HTTPS at the website address bar.
So, what are TLS and SSL?
Again, getting back to the full forms, TLS means Transport Layer Security and SSL means Secure Socket Layer. However, this name TLS is given and standardized by the Internet Engineering Task Force. There are different versions of TLS are available. TLS 1.2 and TLS 1.3 has now been published as of August 2018. However, there are still many servers using TLS than TLS 1.2.
So, technically speaking, it doesn’t matter if SSL or TLS. So, it is never SSL Versus SSL. Instead, these two forms an inseparable bond and are always bonded together as a series of security protocols like SSL/TLS.
All the URL address bar starting with HTTPS is connected through TLS, is an indication that the connection is very much safe and secured. Often, TLS is also used for email purposes also.
How Secure Socket Layer (SSL) handshake process works?
Let us see how this SSL protocol handshake method works. During the server and the client authentication process, that requires data encryption with one of the keys with an asymmetrical pattern. In the same way, data decryption with the other key of the pair. The ‘To and From’ message is essential for data integrity.
In a server authentication, the client uses the public key from the server to encrypt the data which is used to evaluate the secret key. Then immediately, the server will generate the secret key only when it can decrypt the data with the corresponding private key.
On the other hand, for client authentication, the public key is used by the server in the client exchange to decrypt the client’s data. This SSL handshake is very crucial for the data exchange. However, the transfer of the data that are finished with the secret keys completes the authentication process. However, if any of the authentication mentioned above process steps fail the SSL handshake process fails, and the exchange session also terminates.
How SSL and TLS provide confidentiality?
Talking about the internet frauds and cybersecurity awareness these days, users have become more careful when coming to the usage of their internet. SSL and TLS no doubt provides the required confidentiality for the users.
To be more explicit, this SSL and TLS use a combinational key of symmetric and asymmetric encryption to safeguard the privacy of every message received. For the process to enable, SSL or TLS must follow an algorithm for the further encryption process. However, in the process of the SSL or TLS handshake, the SSL or TLS clients and servers should undertake the encryption algorithm and then share the secret key which is used for the session.
Moreover, the messages transmitted between the SSL or TLS clients and the webservers ensure that the data is private no matter what. As SSL supports a vast range of cryptographic algorithms, it is considered as a must for any website. Make sure you invest in this security protocol as this is the need of the hour. To add more advantage, SSL and TLS while transporting the secret key uses asymmetric encryption to avoid key distribution issues.
TYPES OF SSL: DV, OV AND EV?
Nowadays, everyone is busy securing the websites from constant data theft and make sure that the users’ private information is stored very safely. But the question here is, what kind of SSL you require?
To make it simple for you, in this section, we will discuss types of SSL and where they are used. For example, there might be a customer who wants to secure the own website, a blogging site, there will be another customer who runs an e-commerce website, and another who runs a large-scale industry. The need and the requirement, depending on the business size.
Level 1: Domain Validation or DV Certificates
DV SSL is the level one SSL certification. The certificate authority (CA) issues a certificate to anyone listed or associated in the domain name. DV SSL is issued very quickly and mostly issued for personal websites. No company details are displayed, or a company name and details are required to submit; hence, this is simple to get it done.
Generally, DV SSL is required when there are no much credibility issues. This DV SSL is best suitable for personal blog websites, filling forms, and login forms or any non- transactional stuff or single domain security.
Level 2: Organization Validation or OV Certificates
OV SSL is a step ahead of DV SSL certificates. To get OV certificate authority should check the ownership of the domain status, additional vetting process, and the third-party documents verification for OV SSL.
Generally, it includes checking of the company registration, name of the person and contact details. The ownership of the website is made visible, and the information is displayed on the certificate.
OV SSL is best suited for public websites yet little less transactional data websites. Another added advantage for OV is a thorough and step by the step verification process. Users can rest assured as it provides with the level of trust from the company or the website. However, OV SSL does not give you the highest security display, but it is better than the upper level DV SSL. It establishes the business identity over the website.
Level 3: Extended Validation or EV Certificates
This is the highest security SSL certificate so far. It is considered as the standard of all the websites which deal with transactions and require personal details like a credit card, contact details etc. Moreover, when you want to establish the highest authenticity of your website, you need EV SSL.
EV verification involves a series of steps. The certificate authority must perform a rigorous test on the company or the organization. Websites with EV SSL will have a green color bar on the address bar. Also, you can notice a field with the website owner and the name of the certificate authority that issues the EV certificate.
EV is mostly used by all the e-commerce websites where the transactional rates are high. As EV certificate comes with a green bar, it increases the user trust, low bounce rates, enhance the user credibility and online trust essence.
Though EV SSL Certificate price little high, it will surely promise the brand commitment, increased revenues because of the lower bounce rates of the website. EV SSL offers high margins, increased profits, and customer satisfaction. Finally, EV SSL provides a safer and positive user experience making it more reliable for the customers.
Proper steps to safeguard the websites have become essential to avoid cyber-attacks. Even, Google is encouraging webmasters to enable SSL on their website and help them to rank better in search engine. So, if you are an organizational business owner, no matter what the size of your organization installing an SSL/TLS is a must.