Public Key Signature: What It Is & Why It’s Everywhere

Public Key Signature: What It Is & Why It’s Everywhere

PKI digital signatures can be found virtually everywhere — from digitally signed emails and software to secure websites. We’ll break down what a PKI signature is and how it helps protect your data’s integrity

A comic that shows two dogs talking, and the one sitting in front of a computer says, "On the internet, nobody knows you're a dog."

Remember when you were a kid and your parents told you that if you put your mind to it, you can do or be anything you want? Well, on the internet, that is kind of true. You can pretty much make your own truth about yourself — you could be a teenager, an adult, or a company’s CEO. Without a way to prove your claims are legitimate, no one will be any the wiser.

Cybercriminals know this and love to take advantage of it. That’s why we have all the issues that we do today relating to phishing other sorts of predatory cyber attack techniques. Before the internet, you had to meet up with someone face to face to securely exchange information or send coded, encrypted messages.

But now that people are communicating and doing business with others across the world instantaneously, face-to-face meetups are no longer feasible in most cases. So, to protect yourself and your customers, you need to have a way to prove your identity online and help people know that your emails, files, and software are legitimate and haven’t been faked. This is where PKI signatures come into play.

But what is a public key signature? How is a digital signature different from other electronic signatures? And where can you find PKI digital signatures in action?

Let’s hash it out.

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