While TLS 1.2 requires two round-trips to complete the TLS handshake, 1.3 gets the job done in just one trip, so it drastically cuts down on encryption latency. Faster performanceĮncryption always adds a little overhead to a webpage's overall performance, but TLS 1.3 offers faster encryption than even. The most noticeable differences in the newer version include: 1. That being said, some websites are already making the switch to version 1.3. This version brought some great improvements over its predecessor, which you can learn about in this TLS 1.2 vs TLS 1.1 comparison.

Most web browsers currently depend upon TLS 1.2, which was defined in RFC 5246. How does the new version of TLS differ from older versions? Eliminating legacy features and streamlining configuration has made TLS safer and faster than ever before. In contrast, the new version of TLS was designed with a 'less is more' approach. While websites should be accessible to as many people as possible, they also have to be safe for all visitors. The amount of freedom developers have when configuring TLS 1.2 has presented problems because they often neglect to disable outdated features in an effort to accommodate older browsers. Since then, hackers have discovered several vulnerabilities that have resulted in some high profile cyber attacks over the last few years. TLS 1.2 became the web's standard back in 2008. The HTTPS protocol, which is responsible for securing most websites, APIs and backends for mobile apps, depends on TLS to secure communications. Whenever you see a padlock icon on the left side of your browser's address bar followed by 'https', you know that you're viewing an encrypted webpage. It uses symmetric cryptography to generate unique keys for each side via a process called the 'TLS handshake.' IP-based protocols like HTTPS, SMTP, POP3 and FTP all support TLS for encryption. The job of TLS is to secure data as it is transmitted between web browsers and servers. Certificate authorities still tend to call TLS certificates 'SSL certificates' because people are more familiar with the older protocol name.

Consequently, you may see the terms TLS and SSL used interchangeably. Transport Layer Security, or TLS, is a replacement for the older Secure Sockets Layer, or SSL.

This guide will explain how developers can take full advantage of the features the latest version of TLS has to offer. In addition to being faster and more secure, TLS 1.3 has numerous other improvements over its predecessors. Although it's still very new, the new TLS is already getting a lot of attention from web developers. Nearly a decade has passed since the previous major encryption protocol update, yet the age of TLS 1.3 is finally upon us.

Performing a tls handshake firefox