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Overview

Secure the distribution of public keys in your end-to-end encrypted (E2EE) messaging systems

Cloudflare’s Key Transparency Auditor aims to secure the distribution of public keys for end-to-end encrypted (E2EE) messaging systems like WhatsApp. It achieves this by building a verifiable append-only data structure called a Log, similar to Certificate Transparency.

Cloudflare acts as an auditor of Key Transparency Logs to ensure the transparency of end-to-end encrypted messaging public keys. Cloudflare provides an API for anyone to monitor the verification work we perform, and verify the state of its associated Logs locally.

Certificate Transparency Monitoring

Certificate Transparency (CT) Monitoring is an opt-in feature in public beta that aims to improve security by allowing you to double-check any SSL/TLS certificates issued for your domain.

Privacy Gateway

Privacy Gateway is a managed service deployed on Cloudflare’s global network that implements part of the Oblivious HTTP (OHTTP) IETF standard. The goal of Privacy Gateway and Oblivious HTTP is to hide the client’s IP address when interacting with an application backend.