Re: [Cfrg] Homomorphic Encryption Standardization – Side Meeting

"Blumenthal, Uri - 0553 - MITLL" <> Thu, 26 March 2020 19:38 UTC

Return-Path: <>
Received: from localhost (localhost []) by (Postfix) with ESMTP id B5B093A0BFE; Thu, 26 Mar 2020 12:38:46 -0700 (PDT)
X-Virus-Scanned: amavisd-new at
X-Spam-Flag: NO
X-Spam-Score: -1.621
X-Spam-Status: No, score=-1.621 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, KHOP_HELO_FCRDNS=0.274, MIME_QP_LONG_LINE=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, UNPARSEABLE_RELAY=0.001] autolearn=no autolearn_force=no
Received: from ([]) by localhost ( []) (amavisd-new, port 10024) with ESMTP id lqB8Dqbgwjiy; Thu, 26 Mar 2020 12:38:45 -0700 (PDT)
Received: from (LLMX3.LL.MIT.EDU []) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by (Postfix) with ESMTPS id 99BA63A0BDE; Thu, 26 Mar 2020 12:38:44 -0700 (PDT)
Received: from ( by (unknown) with ESMTPS id 02QIc3AK039771; Thu, 26 Mar 2020 14:38:03 -0400
From: "Blumenthal, Uri - 0553 - MITLL" <>
To: Phillip Hallam-Baker <>, Yaron Sheffer <>
CC: ietf <>, "" <>, "" <>, "" <>
Thread-Topic: =?utf-8?B?W0NmcmddIEhvbW9tb3JwaGljIEVuY3J5cHRpb24gU3RhbmRhcmRpemF0aW9u?= =?utf-8?B?IOKAkyBTaWRlIE1lZXRpbmc=?=
Thread-Index: AQHWAukNMMYzc/rEkk2B5/ud5OZatahbdFeA///BMwA=
Date: Thu, 26 Mar 2020 18:38:02 +0000
Message-ID: <>
References: <> <>
In-Reply-To: <>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach: yes
user-agent: Microsoft-MacOutlook/
x-originating-ip: []
Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha256; boundary="B_3668078282_1073986792"
MIME-Version: 1.0
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.645 definitions=2020-03-26_10:2020-03-26, 2020-03-26 signatures=0
X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=800 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-2002250000 definitions=main-2003260138
Archived-At: <>
Subject: Re: [Cfrg] =?utf-8?q?Homomorphic_Encryption_Standardization_?= =?utf-8?q?=E2=80=93_Side_Meeting?=
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Crypto Forum Research Group <>
List-Unsubscribe: <>, <>
List-Archive: <>
List-Post: <>
List-Help: <>
List-Subscribe: <>, <>
X-List-Received-Date: Thu, 26 Mar 2020 19:38:47 -0000

I concur:


Subject: Re: [Cfrg] Homomorphic Encryption Standardization – Side Meeting


On Wed, Mar 25, 2020 at 5:03 PM Yaron Sheffer <> wrote:

Apologies for cross-posting.

Dear IETFers,

We would like to introduce the work of the Homomorphic Encryption Standardization consortium [1] to the IETF and IRTF community, and solicit feedback about the next steps to standardize this encryption technology. This was originally intended as an IETF-107 side meeting, instead we will hold it as a virtual meeting the week after IETF-107.

Date/time: Tue March 31, 10:00-11:00 PST, 13:00-14:00 EST, 17:00-18:00 UTC, 20:00-21:00 IL.


I would like to see this brought into IRTF as soon as possible either as part of CFRG or as a separate effort.


Right now the canon of commercial cryptography uses only the primitives developed up to 1990 (hash chains). I am currently trying to persuade people to make use of threshold cryptography techniques that were developed in the mid 90s. We need to get out of the habit of waiting 25 years for new cryptographic primitives to mature before we start looking at them.


We should stop asking 'does anyone need this' and instead ask 'is this useful'.


The other reason for bringing it into IRTF is that we really do need a clear IPR regime or else things can get ugly and efforts can stall.