Sign Client Certificate Using Self Signed CA Certificate

In a cluster setting where TLS mutual authentication is required, it’s not uncommon to see client certificates signed by either self-signed root CA or private CA.

October 10, 2020 · 4 min · David Xiao

SSH and TLS: Differences and Similarities

Review the differences and similarities between the two protocols from an architecture and security perspective.

September 1, 2020 · 2 min · David Xiao

TLS Handshake in a Nutshell

A quick overview of TLS handshake

August 31, 2020 · 2 min · David Xiao

Secure Your HTTPS / SSL / TLS

To site owners: Just because you’ve enabled HTTPS does not mean it’s sound and secure. TLS v1.0 and v1.1 is unsecure and phasing out.

June 11, 2020 · 1 min · David Xiao