Re: [Suit] [Teep] Unique Identifier of TA_ID in TA_LIST for TEEP_QueryResponse

Hannes Tschofenig <Hannes.Tschofenig@arm.com> Mon, 18 May 2020 10:20 UTC

Return-Path: <Hannes.Tschofenig@arm.com>
X-Original-To: suit@ietfa.amsl.com
Delivered-To: suit@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 830F93A09F1; Mon, 18 May 2020 03:20:33 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: 0
X-Spam-Level:
X-Spam-Status: No, score=0 tagged_above=-999 required=5 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=armh.onmicrosoft.com header.b=bbJrsJ2F; dkim=pass (1024-bit key) header.d=armh.onmicrosoft.com header.b=bbJrsJ2F
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 YO8N32f9mpdS; Mon, 18 May 2020 03:20:31 -0700 (PDT)
Received: from EUR02-VE1-obe.outbound.protection.outlook.com (mail-eopbgr20053.outbound.protection.outlook.com [40.107.2.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 056D13A0A73; Mon, 18 May 2020 03:20:30 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=armh.onmicrosoft.com; s=selector2-armh-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=8UfBsZN+U7Me1YtvQRigcA8We7kJCk2+F5jswwcbbJU=; b=bbJrsJ2F9g9MQj97eCGZ9I2T3hp61yS+jojiOPVxMFl/iAGlb5gWHoIfjGmKWsehE/XQZx/s3ZdalgxRnbNooII5PMq+FkrjDQXMjW4at0QlV0ctCWCbOjfx8Qmm0I0qV7vWKuDS7oMnSrOsf+GcjiKd5czfST/c6FE6SgchScg=
Received: from AM6PR0502CA0042.eurprd05.prod.outlook.com (2603:10a6:20b:56::19) by VI1PR0802MB2333.eurprd08.prod.outlook.com (2603:10a6:800:9f::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3000.20; Mon, 18 May 2020 10:20:27 +0000
Received: from AM5EUR03FT030.eop-EUR03.prod.protection.outlook.com (2603:10a6:20b:56:cafe::f6) by AM6PR0502CA0042.outlook.office365.com (2603:10a6:20b:56::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3000.24 via Frontend Transport; Mon, 18 May 2020 10:20:27 +0000
X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 63.35.35.123) smtp.mailfrom=arm.com; ietf.org; dkim=pass (signature was verified) header.d=armh.onmicrosoft.com;ietf.org; dmarc=bestguesspass action=none header.from=arm.com;
Received-SPF: Pass (protection.outlook.com: domain of arm.com designates 63.35.35.123 as permitted sender) receiver=protection.outlook.com; client-ip=63.35.35.123; helo=64aa7808-outbound-1.mta.getcheckrecipient.com;
Received: from 64aa7808-outbound-1.mta.getcheckrecipient.com (63.35.35.123) by AM5EUR03FT030.mail.protection.outlook.com (10.152.16.117) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3000.19 via Frontend Transport; Mon, 18 May 2020 10:20:27 +0000
Received: ("Tessian outbound 567b75aed2b9:v54"); Mon, 18 May 2020 10:20:27 +0000
X-CR-MTA-TID: 64aa7808
Received: from 61bfa4b74cbd.1 by 64aa7808-outbound-1.mta.getcheckrecipient.com id B2146AF8-A7AE-4773-BC27-7E4226575959.1; Mon, 18 May 2020 10:20:22 +0000
Received: from EUR02-AM5-obe.outbound.protection.outlook.com by 64aa7808-outbound-1.mta.getcheckrecipient.com with ESMTPS id 61bfa4b74cbd.1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384); Mon, 18 May 2020 10:20:22 +0000
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=m/q+rRS3RLSz/vJQAqNVNXmdZscjafssl68b8UznKWr93YJ9gYN+1Y3HjDhzFwdQq330zFpDx8jkiQpPx5MQmhf7M90qIMMT8kE5pzuekHg64qloZXC3DTWf4md57FWOCgXAWKF3BVSrOVXfM1k3Km8ogvTR/Ese2x5q9DVfiX8kND6ipDQ0eDp1MO9q/bZWo7hHb1UOMehIo1gKOwsrym5zowphN43+Xpp8G/RHFMVGYTd9RLPAXTAVm2ZGp/FeQ1HffemRhXpBfJtg+udbjDbH7ASSL9Vl9AIwM6BAaQop7ztt6Zg3+n3u9iPgCunikvUEkUYj7ab6BR5M3EQUpA==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=8UfBsZN+U7Me1YtvQRigcA8We7kJCk2+F5jswwcbbJU=; b=nKjO+5xxLigkFvLAmmD+0wKT51qTj5PkEuiUCIVf4XV7RvEVs7K4xL1M7cmYWSWALIVWGmUJ7a0iiPDmR8WurVMSBxy71IE9IQEd0sl074kXsKxp7EZu91eC277IKtCjZPOxdxYtdeLnY1tNExN6traDoJTF1draOq6rTXSeWrb0QBlEcwlSxP0oR9ERkuojvA454UVhSebLObXDHzaWrxRDab0P5E0Tzught0sRou+TDmZWDIp+i6XLeuMZPjcsAk6xxEN4wOZUMaDJ8ikoD9Jl4XFtYwytEAWwxSbieikdi88cn+qBFGg77PMnNvRSiRrRY0M06+URDPVHE9p6qg==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=arm.com; dmarc=pass action=none header.from=arm.com; dkim=pass header.d=arm.com; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=armh.onmicrosoft.com; s=selector2-armh-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=8UfBsZN+U7Me1YtvQRigcA8We7kJCk2+F5jswwcbbJU=; b=bbJrsJ2F9g9MQj97eCGZ9I2T3hp61yS+jojiOPVxMFl/iAGlb5gWHoIfjGmKWsehE/XQZx/s3ZdalgxRnbNooII5PMq+FkrjDQXMjW4at0QlV0ctCWCbOjfx8Qmm0I0qV7vWKuDS7oMnSrOsf+GcjiKd5czfST/c6FE6SgchScg=
Received: from AM0PR08MB3716.eurprd08.prod.outlook.com (2603:10a6:208:106::13) by AM0PR08MB4003.eurprd08.prod.outlook.com (2603:10a6:208:12d::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3000.27; Mon, 18 May 2020 10:20:21 +0000
Received: from AM0PR08MB3716.eurprd08.prod.outlook.com ([fe80::39f5:e4d9:51ff:eae]) by AM0PR08MB3716.eurprd08.prod.outlook.com ([fe80::39f5:e4d9:51ff:eae%7]) with mapi id 15.20.3000.034; Mon, 18 May 2020 10:20:21 +0000
From: Hannes Tschofenig <Hannes.Tschofenig@arm.com>
To: Benjamin Kaduk <kaduk@mit.edu>, Akira Tsukamoto <akira.tsukamoto@aist.go.jp>
CC: Mingliang Pei <mingliang.pei@broadcom.com>, teep <teep@ietf.org>, "suit@ietf.org" <suit@ietf.org>
Thread-Topic: [Suit] [Teep] Unique Identifier of TA_ID in TA_LIST for TEEP_QueryResponse
Thread-Index: AQHWEVbXFgYm+cwGsUmvssVwMd+QFqikRL8AgAFwMACAAFicgIAHiGOAgABC9mA=
Date: Mon, 18 May 2020 10:20:20 +0000
Message-ID: <AM0PR08MB371698FB441DBEDA2A010CAFFAB80@AM0PR08MB3716.eurprd08.prod.outlook.com>
References: <7526678c-9ebc-e265-514c-435dce7595bc@aist.go.jp> <AM0PR08MB37161FA69D215123ACBC632FFABE0@AM0PR08MB3716.eurprd08.prod.outlook.com> <CABDGos5LfjqdK8LHijnqTiceu7E823SmA=4Vtyq144jH2Kx-Hw@mail.gmail.com> <00515b62-b2ae-405e-2c44-c533c6857873@aist.go.jp> <20200518061937.GH58497@kduck.mit.edu>
In-Reply-To: <20200518061937.GH58497@kduck.mit.edu>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-ts-tracking-id: 61d7393b-bcee-4f4d-8fd6-4f42ee740bea.1
x-checkrecipientchecked: true
Authentication-Results-Original: mit.edu; dkim=none (message not signed) header.d=none;mit.edu; dmarc=none action=none header.from=arm.com;
x-originating-ip: [80.92.122.242]
x-ms-publictraffictype: Email
X-MS-Office365-Filtering-HT: Tenant
X-MS-Office365-Filtering-Correlation-Id: 4cee6280-6200-4b51-b40c-08d7fb1515a0
x-ms-traffictypediagnostic: AM0PR08MB4003:|VI1PR0802MB2333:
X-Microsoft-Antispam-PRVS: <VI1PR0802MB2333EAA333ACCADD2D3DCB1CFAB80@VI1PR0802MB2333.eurprd08.prod.outlook.com>
x-checkrecipientrouted: true
nodisclaimer: true
x-ms-oob-tlc-oobclassifiers: OLM:4941;OLM:8882;
x-forefront-prvs: 04073E895A
X-MS-Exchange-SenderADCheck: 1
X-Microsoft-Antispam-Untrusted: BCL:0;
X-Microsoft-Antispam-Message-Info-Original: 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
X-Forefront-Antispam-Report-Untrusted: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:AM0PR08MB3716.eurprd08.prod.outlook.com; PTR:; CAT:NONE; SFTY:; SFS:(4636009)(376002)(346002)(396003)(366004)(136003)(39860400002)(66946007)(110136005)(54906003)(33656002)(316002)(55016002)(9686003)(4326008)(2906002)(478600001)(52536014)(186003)(26005)(66556008)(76116006)(64756008)(66446008)(71200400001)(66476007)(7696005)(6506007)(53546011)(8676002)(8936002)(86362001)(5660300002)(4744005)(222643001); DIR:OUT; SFP:1101;
x-ms-exchange-antispam-messagedata: tNTHdShQBTKWq3v/vwXoHRKGv9AmtpikIPD0TmwMw4/hruqsyXSCapVm3H8pYx6F2OzCuZkTv3VLY2Z2kUS/gLrcApS8vvsbIgaI/i9U5MwnYUi8gNPubisnqNDr5E8273YjALAnL8Rj9cMO3htmUPN7+55/wtWJlKqJdGJPWMHWbI3TE0jlJo8saoOPqLGHI60xDpCusIdSp3hHKDoS5S7hIn7DvUlnfJKBdx2PRPj69bUppilCGKGvdhxq/ER+X1ebV8fmbi8/kzpo1WVoPjzeXPU2e9jh8NUnRs6UVE29hRdiHCw1lY93LK9c9aM5fqtS67d1ISzydiRlQxJWY5vJsvVw6QOlGIhu+nEJrlUVB188wEWZcHYqz5Xgv9HGU/d2dtPFl+qYWqHq+tMm8FrMWpPnfZgZkKJmHLa4Ua4qjQscB1cqRaUuVqaizUp58AOdVGbrzhGu/7AtM9R8Xul3km1FjfjYMaM6mYQWWzQ=
x-ms-exchange-transport-forked: True
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR08MB4003
Original-Authentication-Results: mit.edu; dkim=none (message not signed) header.d=none;mit.edu; dmarc=none action=none header.from=arm.com;
X-EOPAttributedMessage: 0
X-MS-Exchange-Transport-CrossTenantHeadersStripped: AM5EUR03FT030.eop-EUR03.prod.protection.outlook.com
X-Forefront-Antispam-Report: CIP:63.35.35.123; CTRY:IE; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:64aa7808-outbound-1.mta.getcheckrecipient.com; PTR:ec2-63-35-35-123.eu-west-1.compute.amazonaws.com; CAT:NONE; SFTY:; SFS:(4636009)(39860400002)(346002)(136003)(396003)(376002)(46966005)(53546011)(81166007)(5660300002)(450100002)(356005)(52536014)(316002)(47076004)(36906005)(55016002)(7696005)(9686003)(6506007)(4326008)(8676002)(110136005)(478600001)(54906003)(82310400002)(8936002)(186003)(26005)(336012)(2906002)(86362001)(33656002)(70206006)(70586007)(82740400003)(222643001); DIR:OUT; SFP:1101;
X-MS-Office365-Filtering-Correlation-Id-Prvs: bfe28f06-8ac3-45ad-38b0-08d7fb1511f4
X-Forefront-PRVS: 04073E895A
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info: 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
X-OriginatorOrg: arm.com
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 May 2020 10:20:27.1203 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: 4cee6280-6200-4b51-b40c-08d7fb1515a0
X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d; Ip=[63.35.35.123]; Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com]
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR0802MB2333
Archived-At: <https://mailarchive.ietf.org/arch/msg/suit/ARAqpbvGEq_LbBTzQ0Bv8NV5Q2Y>
Subject: Re: [Suit] [Teep] Unique Identifier of TA_ID in TA_LIST for TEEP_QueryResponse
X-BeenThere: suit@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Software Updates for Internet of Things <suit.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/suit>, <mailto:suit-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/suit/>
List-Post: <mailto:suit@ietf.org>
List-Help: <mailto:suit-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/suit>, <mailto:suit-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 18 May 2020 10:20:34 -0000

Hi Ben,

BCP 201 does not apply here because we are not using the algorithm for use with cryptography but rather to shorten the identifier while still reducing name collisions.

Ciao
Hannes

-----Original Message-----
From: Benjamin Kaduk <kaduk@mit.edu>
Sent: Monday, May 18, 2020 8:20 AM
To: Akira Tsukamoto <akira.tsukamoto@aist.go.jp>
Cc: Mingliang Pei <mingliang.pei@broadcom.com>om>; Hannes Tschofenig <Hannes.Tschofenig@arm.com>om>; teep <teep@ietf.org>rg>; suit@ietf.org
Subject: Re: [Suit] [Teep] Unique Identifier of TA_ID in TA_LIST for TEEP_QueryResponse

On Wed, May 13, 2020 at 08:17:39PM +0900, Akira Tsukamoto wrote:
>
> We have to specify which sha256 or anything else to use.

Note that BCP 201 says you have to be able to support multiple algorithms.

-Ben
IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.