What is SSL / TLS?
They are the initials of Secure Sockets Layer, which in Spanish would be Secure Connections Layer. This belongs to a type of digital security that allows secure communications to be established over the Internet.
However, this has been replaced by TLS (Transport Layer Security) which in Spanish means Transport Layer Security, which guarantees the privacy of the information hosted in the database to the website or the internet.
Finally we have HTTPS, which is a secure extension of HTTP. When installing and configuring an SSL or TLS certificate, you can use the HTTPS protocol to make the connection more secure with the server when accessing a website.
What are the advantages of using an SSL / TLS certificate?
Having installed a security certificate such as SSL / TLS and HTTPS allows to have an unencrypted encryption which makes it more difficult for some attackers or hackers to steal the information.
SSL / TLS allows you to prove the identity of the server, since any server can pretend to be the server and not the server where the data and information of the website are actually hosted. Therefore, this gives security to users who visit the website.
In many cases it turns out that a link or website of an advertisement is not really what appeared on the web but a script or virus that could affect our PC or mobile device. However using an SSL / TLS certificate is a visual way of showing users visiting the website that it is safe and reliable.
A very important detail is that this also allows you to have security regarding relevant information such as credit card handling, since this prevents any Phishing attempt. In fact, financial information requires maintaining certain basic security levels, and one of those requirements is the use of an SSL / TLS security certificate.
How do SSL / TLS certificates work?
The operation may seem a bit complex, but to understand it better we are going to put some examples that will help us understand this in more detail. When a user wants to connect to a website such as Google in his browser, this before going to the site communicates with the server. The server asks the site for a certificate or “key", this key or password is what identifies it and is unique so it cannot be different. That's when Google, which is the site a user wants to access, presents the SSL / TLS digital certificate. In order for the web browser to trust the site, which in this case is Google, it performs some tests verifying the validity of the certificate. Finally, if the certificate is valid, the browser trusts the website and therefore establishes a secure communication.
The safest way to access a website is by using “https: //" a padlock will immediately appear in the upper left before the website address. If there is no warning message or red color, it means that the security protocol has worked correctly.
How does HTTPS work with SSL / TLS?
HTTP (Hypertext Transfer Protocol) which in Spanish means HyperText Transfer Protocol. The S at the end stands for “Secure" and this protocol has the same purpose as SSL / TLS: Data transfer.
However, there is a difference between HTTP and HTTPS, and that is that the data that is transferred through HTTP is accessible to anyone who intercepts the communication, so it can be more vulnerable to a possible attack or theft of information. Instead HTTPS as we mentioned at the beginning uses a secure connection through SSL encryption and therefore the data is verified and authenticated to establish a secure connection between the browser and the website.
In summary, the implementation of SSL / TLS and HTTPS security certificates applies to any website, be it a blog of topics of interest or sites of organizations with business purposes. We have heard in many places that when it comes to security, that should be a primary matter, since the success of the functions that are implemented in any type of organization or business establishment depends on that. Therefore, if we are going to hire a Hosting service or set up a website, let's make sure that there are certificates that can guarantee us security and above all guarantee the trust of those who visit us through the web.