draft-ietf-httpbis-unprompted-auth-09.txt		draft-ietf-httpbis-unprompted-auth-latest.txt
	HTTPBIS Working Group D. Schinazi		HTTPBIS Working Group D. Schinazi
	Internet-Draft Google LLC		Internet-Draft Google LLC
	Intended status: Standards Track D. Oliver		Intended status: Standards Track D. Oliver
	Expires: January 24, 2025 Guardian Project		Expires: January 27, 2025 Guardian Project
	J. Hoyland		J. Hoyland
	Cloudflare Inc.		Cloudflare Inc.
	July 23, 2024		July 26, 2024
	The Concealed HTTP Authentication Scheme		The Concealed HTTP Authentication Scheme
	draft-ietf-httpbis-unprompted-auth-09		draft-ietf-httpbis-unprompted-auth-latest
	Abstract		Abstract
	Most HTTP authentication schemes are probeable in the sense that it		Most HTTP authentication schemes are probeable in the sense that it
	is possible for an unauthenticated client to probe whether an origin		is possible for an unauthenticated client to probe whether an origin
	serves resources that require authentication. It is possible for an		serves resources that require authentication. It is possible for an
	origin to hide the fact that it requires authentication by not		origin to hide the fact that it requires authentication by not
	generating Unauthorized status codes, however that only works with		generating Unauthorized status codes, however that only works with
	non-cryptographic authentication schemes: cryptographic signatures		non-cryptographic authentication schemes: cryptographic signatures
	require a fresh nonce to be signed. At the time of writing, there		require a fresh nonce to be signed. At the time of writing, there
	skipping to change at page 2, line 20 ¶		skipping to change at page 2, line 20 ¶
	Internet-Drafts are working documents of the Internet Engineering		Internet-Drafts are working documents of the Internet Engineering
	Task Force (IETF). Note that other groups may also distribute		Task Force (IETF). Note that other groups may also distribute
	working documents as Internet-Drafts. The list of current Internet-		working documents as Internet-Drafts. The list of current Internet-
	Drafts is at https://datatracker.ietf.org/drafts/current/.		Drafts is at https://datatracker.ietf.org/drafts/current/.
	Internet-Drafts are draft documents valid for a maximum of six months		Internet-Drafts are draft documents valid for a maximum of six months
	and may be updated, replaced, or obsoleted by other documents at any		and may be updated, replaced, or obsoleted by other documents at any
	time. It is inappropriate to use Internet-Drafts as reference		time. It is inappropriate to use Internet-Drafts as reference
	material or to cite them other than as "work in progress."		material or to cite them other than as "work in progress."
	This Internet-Draft will expire on January 24, 2025.		This Internet-Draft will expire on January 27, 2025.
	Copyright Notice		Copyright Notice
	Copyright (c) 2024 IETF Trust and the persons identified as the		Copyright (c) 2024 IETF Trust and the persons identified as the
	document authors. All rights reserved.		document authors. All rights reserved.
	This document is subject to BCP 78 and the IETF Trust's Legal		This document is subject to BCP 78 and the IETF Trust's Legal
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	publication of this document. Please review these documents		publication of this document. Please review these documents
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