Re: [Pearg] Proposed work on the topic of: IP Address Privacy

Mallory Knodel <> Wed, 19 May 2021 15:59 UTC

Return-Path: <>
Received: from localhost (localhost []) by (Postfix) with ESMTP id F1A753A15B4 for <>; Wed, 19 May 2021 08:59:25 -0700 (PDT)
X-Virus-Scanned: amavisd-new at
X-Spam-Flag: NO
X-Spam-Score: -2.1
X-Spam-Status: No, score=-2.1 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: (amavisd-new); dkim=pass (1024-bit key)
Received: from ([]) by localhost ( []) (amavisd-new, port 10024) with ESMTP id ezoSfQU0JSrJ for <>; Wed, 19 May 2021 08:59:21 -0700 (PDT)
Received: from ( [IPv6:2607:f8b0:4864:20::835]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by (Postfix) with ESMTPS id 7603E3A15E7 for <>; Wed, 19 May 2021 08:59:20 -0700 (PDT)
Received: by with SMTP id g8so2964688qtp.4 for <>; Wed, 19 May 2021 08:59:20 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;; s=google; h=message-id:date:mime-version:user-agent:subject:content-language:to :references:from:in-reply-to:content-transfer-encoding; bh=zQjQ3kAlv6Q50BUSV6UUgxpSMDSRQudN776AH6pQqF4=; b=r06uVT1Hn8/f2QRq8kY0F+wKpJJ1t4xcMmogfkZX4aVetiawLsJNvMVDufxRpDM3x1 UeBSGErvfyzCzPjwfr1NngANUJpWLd2RpT8IfkuCIEP+dfnX7MH3BmGMJ20w01Js+NfB DK8Qzoq7EVFSEQ+wENh+FeY/na7TcdWW1Mtv0=
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;; s=20161025; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:references:from:in-reply-to :content-transfer-encoding; bh=zQjQ3kAlv6Q50BUSV6UUgxpSMDSRQudN776AH6pQqF4=; b=HKbOxVnAO4HH/+N/0X3OGk7VKkek/kdH+1FoFoVZ3TCyO8h/Ff87MzKqs4FXH6MiFp VNetWnE/hr6BZub5gxdtPpp8AwcQISbyC4GutD0Pj1vWOc0Uvt+yD1LLoEG4jxBS2KYB voVguS49UD72VNHR8iASfiGidgEfw83YHuRkLQtQAcjDuOx70CgAyDd5pRGQ2XJRRUOv 1GwIbIr5Rifz3BNT6Ggu9M+GtwAi38oVFiRutNzpXGcIq/c+3NHxmXR6AZ4PibQRv8mA x+HtuUjkxfQHPIydrMftymAbRgfNdChH0YoVeOeVdMhP1TJ2JY9Oh/9XafPChS/LuJY+ PbFQ==
X-Gm-Message-State: AOAM531h/39tjf921/Z2FUfovPWsFJXfQvPAEjxXA7jPK0THo9y1wUWT FoPC7iipxuexUDshCfK1hH1zEqWIfzKPZtCs
X-Google-Smtp-Source: ABdhPJw0X8u0vc90LvO4bp28ROwlR+XtJ3n2N0WSKZbY14FkWAK3Xjnw067rsoHAm4KeerKZ51gK1A==
X-Received: by 2002:ac8:7619:: with SMTP id t25mr100212qtq.312.1621439958870; Wed, 19 May 2021 08:59:18 -0700 (PDT)
Received: from [] ( []) by with UTF8SMTPSA id 11sm65058qky.71.2021. (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 19 May 2021 08:59:18 -0700 (PDT)
Message-ID: <>
Date: Wed, 19 May 2021 11:59:14 -0400
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:89.0) Gecko/20100101 Thunderbird/89.0
Content-Language: en-US
To: Sara Dickinson <>,
References: <>
From: Mallory Knodel <>
In-Reply-To: <>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Archived-At: <>
Subject: Re: [Pearg] Proposed work on the topic of: IP Address Privacy
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Privacy Enhancements and Assessment Proposed RG <>
List-Unsubscribe: <>, <>
List-Archive: <>
List-Post: <>
List-Help: <>
List-Subscribe: <>, <>
X-List-Received-Date: Wed, 19 May 2021 15:59:26 -0000


On 5/14/21 5:42 AM, Sara Dickinson wrote:
> There appeared to be interest in working on one or more documents to capture the current status and future research directions in this space. A general proposal for such work could include:
> * An analysis of the current use cases, attempting to categorise/group such use cases where commonalities exist
> * Generating requirements for proposed 'replacement signals' from this analysis (these could be different for each category/group of use cases)
> * Research to evaluate existing technologies or propose new mechanisms for such signals
> One request was to have a broad scope for the range of use cases considered. We may need a first pass at the initial analysis to see if this is really feasible.
> The chairs would like to hear if
> 1) The above is a reasonable summary of work that folks think could/should be done in PEARG
I think it's a good start-- it may mean that there is more to research 
once the work is underway.
> 2) If people are interested in volunteering to work on some or all of this

Like others, I couldn't yet commit to leading on any of the items. 
However given more clarity on research questions, I'd be happy to join 
efforts in the first and third categories.


Mallory Knodel
CTO, Center for Democracy and Technology
gpg fingerprint :: E3EB 63E0 65A3 B240 BCD9 B071 0C32 A271 BD3C C780