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CRL (Certificate Revocation List)

Encryption

TLS (Transport Layer Security) Certificate Authority (CA) Public Key Infrastructure (PKI) Certificate Revocation

A list of certificates that should no longer be trusted.

Definition

A CRL is a list from a certificate authority showing which certificates have been revoked.

In plain English A list of certificates that should no longer be trusted.

Why this matters

Why it matters: It helps systems stop trusting compromised certificates.

Example

Example: A system downloads a CRL to see if a certificate is revoked.