Secure communication protocols make the difference between people navigating the internet with confidence and being at the mercy of attackers. Businesses, governments, and other organizations that people trust with their data have a weighty responsibility as protectors of sensitive information.
Transport Layer Security (TLS) is a security protocol used when two digital parties, often a browser and a server, engage in a handshake. During the handshake process, the browser says, in effect, “Here’s what I’m going to use to make sure the information my user sends is secure.” In reply, the server says, “Okay, based on the options you’re presenting, here’s what I think is the best way for us to interact securely.”
The tools the browser (or client) and the server can use include authentication, cryptographic protocols, and session keys. TLS determines which of these are an option for the parties during their interaction.
When two parties on the internet, such as your web browser and a website’s server, interact, they exchange TLS handshakes. This article explains:
Understanding the TLS 1.2 handshake
In 1995, Netscape introduced Secure Sockets Layer (SSL) technology, a security protocol for fostering safe online transactions. Eventually, SSL was replaced by the TLS protocol, which incorporated more effective cryptographic algorithms and security features.
TLS 1.2 was first offered to the public in 2008. The goa ..
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