RFC 9729 on The Concealed HTTP Authentication Scheme

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        RFC 9729

        Title:      The Concealed HTTP Authentication Scheme 
        Author:     D. Schinazi,
                    D. Oliver,
                    J. Hoyland
        Status:     Standards Track
        Stream:     IETF
        Date:       February 2025
        Mailbox:    dschinazi.ietf@gmail.com,
                    david@guardianproject.info,
                    jonathan.hoyland@gmail.com
        Pages:      15
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-ietf-httpbis-unprompted-auth-12.txt

        URL:        https://www.rfc-editor.org/info/rfc9729

        DOI:        10.17487/RFC9729

Most HTTP authentication schemes are probeable in the sense that it
is possible for an unauthenticated client to probe whether an origin
serves resources that require authentication. It is possible for an
origin to hide the fact that it requires authentication by not
generating Unauthorized status codes; however, that only works with
non-cryptographic authentication schemes: cryptographic signatures
require a fresh nonce to be signed. Prior to this document, there was
no existing way for the origin to share such a nonce without exposing
the fact that it serves resources that require authentication. This
document defines a new non-probeable cryptographic authentication
scheme.

This document is a product of the HTTP Working Group of the IETF.

This is now a Proposed Standard.

STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the 
standardization state and status of this protocol.  Distribution of this 
memo is unlimited.

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The RFC Editor Team

Received on Friday, 14 February 2025 18:50:40 UTC