If the SSL certificate is not valid, your users may be faced with the “ your connection is not private” error, which could cause them to leave your website. Then, the browser will perform a “handshake” to check the validity of your certificate and authenticate your server. When a visitor goes to your site, their web browser will look for your site’s SSL/TLS certificate. When you install an SSL/TLS certificate on your web server ( often just called an “SSL certificate), it includes a public key and a private key that authenticate your server and let your server encrypt and decrypt data. Here’s the high-level process for how both SSL and TLS work.

TLS 1.0 – released in 1999 as an upgrade to SSL 3.0.

SSL 1.0 – never publicly released due to security issues.Here’s the full history of SSL and TLS releases: Since then, there have been three more TLS releases, with the most recent release being TLS 1.3 in August 2018.Īt this point, both public SSL releases have been deprecated and have known security vulnerabilities (more on this later). Then, in 1999, the first version of TLS (1.0) was released as an upgrade to SSL 3.0. Although SSL 2.0 was publicly released, it also contained security flaws and was quickly replaced by SSL 3.0 in 1996.

SSL 2.0 was first released in February 1995 (SSL 1.0 was never publicly released because of security flaws). It fixes some security vulnerabilities in the earlier SSL protocols.īefore you learn more about the specifics, it’s important to understand the basic history of SSL and TLS. Well, TLS is actually just a more recent version of SSL. So what’s the difference between TLS vs SSL?

TLS, short for Transport Layer Security, and SSL, short for Secure Socket Layers, are both cryptographic protocols that encrypt data and authenticate a connection when moving data on the Internet.įor example, if you’re processing credit card payments on your website, TLS and SSL can help you securely process that data so that malicious actors can’t get their hands on it. What Is the Difference Between TLS and SSL? Why you should use TLS and not SSL (and why you probably already are even if you don’t know it).Why is it called an SSL certificate and not a TLS certificate?.What is the difference between TLS vs SSL?.You can click below to jump to a specific section or read through the entire article:

Test tls 1.2 connection