File formats:

Also available: XML file for editing

 

Status:

EXPERIMENTAL

Author:

E. Stark

Stream:

IETF

Source:

httpbis (wit)

Cite this RFC: TXT  |  XML  |   BibTeX

DOI:  https://doi.org/10.17487/RFC9163

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Abstract

This document defines a new HTTP header field named "Expect-CT", which allows web host operators to instruct user agents (UAs) to expect valid Signed Certificate Timestamps (SCTs) to be served on connections to these hosts. Expect-CT allows web host operators to discover misconfigurations in their Certificate Transparency (CT) deployments. Further, web host operators can use Expect-CT to ensure that if a UA that supports Expect-CT accepts a misissued certificate, that certificate will be discoverable in Certificate Transparency logs.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.