A New Life for Certificate Revocation Lists

This month, Let’s Encrypt is turning on new infrastructure to support revoking certificates via Certificate Revocation Lists. Despite having been largely supplanted by the Online Certificate Status Protocol for over a decade now, CRLs are gaining new life with recent browser updates. By collecting and summarizing CRLs for their users, browsers are making reliable revocation of certificates a reality, improving both security and privacy on the web. Let’s talk about exactly what this new infrastructure does, and why it’s important. …

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