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Certificate Transparency (CT)

Encryption

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

Public logs that help detect suspicious TLS certificates.

Definition

Certificate Transparency uses public logs that record issued TLS certificates.

In plain English Public logs that help detect suspicious TLS certificates.

Why this matters

Why it matters: It helps detect wrongly issued certificates that could impersonate websites.

Example

Example: A browser can require proof a certificate is logged properly.