TLS

Hello!

A TLS handshake takes place whenever a user accesses a website over HTTPS and the browser first begins by querying the website's origin server. A TLS handshake also occurs whenever other communications use HTTPS, including API calls and DNS queries over HTTPS.

TLS handshakes occur after opening a TCP connection through a TCP handshake.

During a TLS handshake, the client and the server together do the following:

• specify which version of TLS (TLS 1.0, 1.2, 1.3, etc.) they will use;

• decide which cipher suites (see below) they will use;

• authenticate the identity of the server via the public key of the server and the digital signature of the SSL certification authority;

• generate session keys to use symmetric encryption once the handshake is complete.

Thanks!