Digital Certificate definition in Cybersecurity

A digital certificate, also known as a public key certificate, is a digitally signed document that is used to verify the ownership of a public key. Digital certificates contain the public key as well as the identity of the owner, and they are issued by trusted entities called Certificate Authorities (CAs). Digital certificates play a crucial role in secure communications over the internet, including SSL/TLS for websites.

Open source or Free solutions

1. Let's Encrypt
2. OpenSSL

Paying solutions

1. DigiCert
2. VeriSign