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certificate authentication

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**certificate authentication**

What is certificate authentication?

Certificate authentication is a process where a digital certificate is used to verify the identity of a user, device, or service. Instead of relying on passwords, which can be compromised, certificate authentication uses cryptographic keys. A client presents a certificate to a server, which then verifies its validity against a trusted Certificate Authority (CA). It's commonly used for secure web access (HTTPS), VPNs, and securing email communication.

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