Verify SSL/TLS Certificate Signature

Introduction

If you’ve read/heard about digital signatures, openssl, public key cryptography, https or tls, you may have wondered

• “How does my browser use these signatures?”
• “How does my browser verify these digital signatures?”
• “When amazon.com provides a digital certificate, how and why does my browser trust it?”

This article lets us take the reins of browser and be the verification guard using openssl tools. Let’s try to understand what goes behind the…