What is Public Key Infrastructure (PKI)?

Public Key Infrastructure (PKI) is kind of a big deal. It underpins widespread web encryption and the entire system of privacy and data protection across the Internet and many other public networks. In short, it’s what makes your SSL certificate work and helps keep your private information private on a daily basis. But what is it, exactly, and how does it work? 

Read on to learn all about it.

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What is a Certificate Authority? Why do they matter?

Although Certificate Authorities (CAs) are central to the operation of the SSL industry and, in turn, the overall security of the Internet, casual Internet users probably don’t know a whole lot about them. They visit websites with HTTPS-enabled websites not realising the role CAs play in establishing that secure connection. Similarly, some website owners may buy an SSL certificate without really knowing where it came from. 

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