IETF Logo Mail Archive

Cookie crumbling in QPACK?

Bence Béky <bnc@google.com> Thu, 06 June 2019 23:56 UTC

Return-Path: <bnc@google.com>
X-Original-To: quic@ietfa.amsl.com
Delivered-To: quic@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id AF41C1200A3 for <quic@ietfa.amsl.com>; Thu, 6 Jun 2019 16:56:30 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -17.509
X-Spam-Level:
X-Spam-Status: No, score=-17.509 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, ENV_AND_HDR_SPF_MATCH=-0.5, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_DKIMWL_WL_MED=-0.01, USER_IN_DEF_DKIM_WL=-7.5, USER_IN_DEF_SPF_WL=-7.5] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=google.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zv4X1yeu1FLC for <quic@ietfa.amsl.com>; Thu, 6 Jun 2019 16:56:29 -0700 (PDT)
Received: from mail-ua1-x934.google.com (mail-ua1-x934.google.com [IPv6:2607:f8b0:4864:20::934]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 1BE0812006E for <quic@ietf.org>; Thu, 6 Jun 2019 16:56:29 -0700 (PDT)
Received: by mail-ua1-x934.google.com with SMTP id f20so37367ual.0 for <quic@ietf.org>; Thu, 06 Jun 2019 16:56:29 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=6PY9nn6d52z9fQmN3KyBr6iapSd2PSmrt3OxTujd7Uc=; b=bg1O/T+Vsct8ZfGqteFbyZu9LATUMYX9UzpaJQXyyhm0rKxmZepVVitjbGFBvcilEV 92f3v9+1CRO3tlwIxblNee4r2zPNNF5lipDLbeByKjmpL6YmtBtVNYubAVym5tiQrniE YVMocsG+aQ3UI/BRZYsstZK+7nqV/kcG6HncuBMCzjhgcHqkfnc/0g1OvmSHUwaWKm4v WbQlrdRoDpHoeNwDQcUCyd9GCVOc2FzYA2/9ObgnV3tqvvLUnjc2cooNMHcB1Hm/RnTZ 2er7ZvDFNmbwstzXBLQIVV3S/zIcZSF2tu/EJjgIfq48Grq3c6LwbPYtSNExSTN5XPaQ wk3w==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=6PY9nn6d52z9fQmN3KyBr6iapSd2PSmrt3OxTujd7Uc=; b=Nmf8LfT8u9Tna08SlMwYi2sDMak4a70R8XFG44nOY1Ja5beN79RjgP3UAZJnRcn9Sg ZyRUldycRGJJxhe7clUt0Pk4udv8DsmKaN5qRLC+5GtxGlH8Aix2FcfEZbofN7v2M5FB gadrH309sKhcqUXgUAgdF2UGGXI4htawS9kicIK5yqAbbYrsjGIKq6yBcvgDURul92ds MATw8+w35XQwvtz3MsD4OgLpEzXdjSQCH8uywFUNvbcV2pdf6lCa+ohqdHrJaXYM6ITs fI1vI9k7lbLMav9DiFg8GA3gQl3xURIFnk1JDRdASAAQzcasHT8UGBDRuyGh2GP5M/fT F3Wg==
X-Gm-Message-State: APjAAAVXFrmNnoMTiDmWoKN4Xd8IPg8i+yHmNY11JlZkpMdGcHO5pCqF sVdAg2+QsRGlS8h/NCBV0ZRV4PMHce/0NTLFRC/sXwfO0l0=
X-Google-Smtp-Source: APXvYqzECfQF4qYQqE4dsgI9r1kYjW9H78Gc12+gxVzcdU0+VDBrEBXvcAyJlKXkIFtc2M9aWSiZAyVpwXkPsxcHqFE=
X-Received: by 2002:ab0:14cb:: with SMTP id f11mr25919893uae.24.1559865387737; Thu, 06 Jun 2019 16:56:27 -0700 (PDT)
MIME-Version: 1.0
References: <CACMu3tr58b1GPOiq3aAt9PC+VTrm5+G1+KVfKup8VmEDOONKDw@mail.gmail.com>
In-Reply-To: <CACMu3tr58b1GPOiq3aAt9PC+VTrm5+G1+KVfKup8VmEDOONKDw@mail.gmail.com>
From: Bence Béky <bnc@google.com>
Date: Thu, 06 Jun 2019 19:56:16 -0400
Message-ID: <CACMu3toTXbejBYrbno8yyaQKrPa27a4Gg4XOn+eFbOZH+AqDjQ@mail.gmail.com>
Subject: Cookie crumbling in QPACK?
To: quic@ietf.org
Content-Type: multipart/alternative; boundary="00000000000055cbc1058ab076ba"
Archived-At: <https://mailarchive.ietf.org/arch/msg/quic/DgMheH6mnosTw3vHnJW0gYD8dk4>
X-BeenThere: quic@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Main mailing list of the IETF QUIC working group <quic.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/quic>, <mailto:quic-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/quic/>
List-Post: <mailto:quic@ietf.org>
List-Help: <mailto:quic-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/quic>, <mailto:quic-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 06 Jun 2019 23:56:31 -0000

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

v2.23.0 | Report a Bug | By Email