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RFC 9162: Certificate Transparency Version 2.0

In plain English — editorial summary, not part of the RFC

This document describes version 2.0 of the Certificate Transparency (CT) protocol for publicly logging the existence of Transport Layer Security (TLS) server certificates as they are issued or observed, in a manner that allows anyone to audit certification authority (CA) activity and notice the issuance of suspect certificates as well as to audit the certificate logs themselves. The intent is that eventually clients would refuse to honor certificates that do not appear in a log, effectively forcing CAs to add all issued certificates to the logs. This document obsoletes RFC 6962. It also specifies a new TLS extension that is used to send various CT log artifacts. Logs are network services that implement the protocol operations for submissions and queries that are defined in this document.

Document record

Document ID
RFC9162
Published
December 2021
Authors
B. Laurie; E. Messeri; R. Stradling
Status
EXPERIMENTAL
Stream
IETF
Area
sec
Pages
53
Also known as
—
Obsoletes:
RFC 6962

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

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canonical URL: /rfc/9162-certificate-transparency-version-2-0