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RE: Cookie crumbling in QPACK?

Mike Bishop <mbishop@evequefou.be> Fri, 07 June 2019 21:10 UTC

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From: Mike Bishop <mbishop@evequefou.be>
To: Bence Béky <bnc=40google.com@dmarc.ietf.org>, "quic@ietf.org" <quic@ietf.org>
Subject: RE: Cookie crumbling in QPACK?
Thread-Topic: Cookie crumbling in QPACK?
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Date: Fri, 07 Jun 2019 21:10:50 +0000
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Filed #2777.

From: QUIC <quic-bounces@ietf.org> On Behalf Of Bence Béky
Sent: Thursday, June 6, 2019 4:56 PM
To: quic@ietf.org
Subject: Cookie crumbling in QPACK?

Hi,

RFC7540<https://httpwg.org/specs/rfc7540.html#CompressCookie> allows crumbling cookies for compression efficiency with HPACK.  However, neither quic-http<https://quicwg.org/base-drafts/draft-ietf-quic-http.html> nor quic-qpack<https://quicwg.org/base-drafts/draft-ietf-quic-qpack.html> drafts mention cookies or crumbling.  Is it considered safe for a QPACK implementation to crumble cookies before compression and concatenate them after decompression?  If so, should the draft include clarification on this?

Thanks,

Bence

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