TLS Encrypted Client Hello (ECH) Configuration Extensions

Created

2025-07-30

Last Updated

2025-07-30

Available Formats

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Registry Included Below

• TLS ECHConfig Extension

TLS ECHConfig Extension

Registration Procedure(s)

Specification Required

Expert(s)

Unassigned

Reference

[RFC-ietf-tls-esni-25]

Note

The role of the designated expert is described in [RFC8447].
The designated expert [RFC8126] ensures that the specification is
publicly available.  It is sufficient to have an Internet-Draft
(that is posted and never published as an RFC) or a document from
another standards body, industry consortium, university site, etc.
The expert may provide more in-depth reviews, but their approval
should not be taken as an endorsement of the extension.  
    

Available Formats

CSV