[Curdle] Confirming a change to draft-ietf-curdle-rsa-sha2-12

"Salz, Rich" <rsalz@akamai.com> Sun, 11 March 2018 17:59 UTC

Return-Path: <rsalz@akamai.com>
X-Original-To: curdle@ietfa.amsl.com
Delivered-To: curdle@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 02DEC126CD6 for <curdle@ietfa.amsl.com>; Sun, 11 Mar 2018 10:59:05 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.701
X-Spam-Level:
X-Spam-Status: No, score=-2.701 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=akamai.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 c3BgCNWjMPFd for <curdle@ietfa.amsl.com>; Sun, 11 Mar 2018 10:59:03 -0700 (PDT)
Received: from mx0a-00190b01.pphosted.com (mx0a-00190b01.pphosted.com [IPv6:2620:100:9001:583::1]) (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 E3C90124207 for <curdle@ietf.org>; Sun, 11 Mar 2018 10:59:03 -0700 (PDT)
Received: from pps.filterd (m0050095.ppops.net [127.0.0.1]) by m0050095.ppops.net-00190b01. (8.16.0.22/8.16.0.22) with SMTP id w2BHw1FZ023151 for <curdle@ietf.org>; Sun, 11 Mar 2018 17:59:03 GMT
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=akamai.com; h=from : to : subject : date : message-id : content-type : content-id : content-transfer-encoding : mime-version; s=jan2016.eng; bh=oHXWol21MGcgevxBvFZfZjChY8GcNcKu5eeqO26siMM=; b=ASeiPulLpuIwPb52eaWsQe635XVCrxPQFgCZKF5PX85ZbnHDZQF7BYbQbGBxDs10xHzc OmwiAOx9KnggbrlaOqWI5volz3cvltM/21jmQDx08Y1Z/woyN1pxSnMNub1yiQ4Wbvs/ fyRP1JATrIa92q9Ttl8/k6kmF5gwo04N6H6yarZ6R9Umv78Oi4T5lofNcx4PUmrkLKOU mcW97QcJ+BuoouZa83k5UaGwHi8po6nVKLzg0u4j+oWJZriZZE6T8tK+UlOkfVdAvH9r sW7QL+LtzAYUs7i9MbtJ/qAxdoq6RXpLDobDXCR0iB2r/zEMz/uLGQVJU8fALAVM1Pvf Kw==
Received: from prod-mail-ppoint1 (prod-mail-ppoint1.akamai.com [184.51.33.18]) by m0050095.ppops.net-00190b01. with ESMTP id 2gm7s7v1dt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for <curdle@ietf.org>; Sun, 11 Mar 2018 17:59:03 +0000
Received: from pps.filterd (prod-mail-ppoint1.akamai.com [127.0.0.1]) by prod-mail-ppoint1.akamai.com (8.16.0.21/8.16.0.21) with SMTP id w2BHuYUH001811 for <curdle@ietf.org>; Sun, 11 Mar 2018 13:59:02 -0400
Received: from email.msg.corp.akamai.com ([172.27.123.30]) by prod-mail-ppoint1.akamai.com with ESMTP id 2gmbjybfn4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT) for <curdle@ietf.org>; Sun, 11 Mar 2018 13:59:02 -0400
Received: from USMA1EX-DAG1MB1.msg.corp.akamai.com (172.27.123.101) by usma1ex-dag1mb1.msg.corp.akamai.com (172.27.123.101) with Microsoft SMTP Server (TLS) id 15.0.1263.5; Sun, 11 Mar 2018 13:59:01 -0400
Received: from USMA1EX-DAG1MB1.msg.corp.akamai.com ([172.27.123.101]) by usma1ex-dag1mb1.msg.corp.akamai.com ([172.27.123.101]) with mapi id 15.00.1263.000; Sun, 11 Mar 2018 13:59:01 -0400
From: "Salz, Rich" <rsalz@akamai.com>
To: "curdle@ietf.org" <curdle@ietf.org>
Thread-Topic: Confirming a change to draft-ietf-curdle-rsa-sha2-12
Thread-Index: AQHTuWKiwRoSx0z86ka0CfIYgjsJJg==
Date: Sun, 11 Mar 2018 17:59:00 +0000
Message-ID: <4C40F019-21FB-46AC-95D3-CC94BB976AAB@akamai.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
user-agent: Microsoft-MacOutlook/10.a.0.180210
x-ms-exchange-messagesentrepresentingtype: 1
x-ms-exchange-transport-fromentityheader: Hosted
x-originating-ip: [172.19.35.127]
Content-Type: text/plain; charset="utf-8"
Content-ID: <83218E8B7BF8964686C82CACBECA5604@akamai.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2018-03-11_10:, , 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=432 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1803110231
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2018-03-11_10:, , signatures=0
X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=355 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1803110231
Archived-At: <https://mailarchive.ietf.org/arch/msg/curdle/1Rflv-9IlvzW_1-IOi1UZt6A_TY>
Subject: [Curdle] Confirming a change to draft-ietf-curdle-rsa-sha2-12
X-BeenThere: curdle@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: "List for discussion of potential new security area wg." <curdle.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/curdle>, <mailto:curdle-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/curdle/>
List-Post: <mailto:curdle@ietf.org>
List-Help: <mailto:curdle-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/curdle>, <mailto:curdle-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sun, 11 Mar 2018 17:59:05 -0000

Eric rightly pounts out that this is a tech change made during the final stage of RFC editing and that it should be confirmed by the WG.  It's about MAY accepting fewer leading zero's.

Does anyone object?

    > > The value for 'rsa_signature_blob' is encoded as a string that
    > > contains an octet string S (which is the output of RSASSA-PKCS1-v1_5)
    > > and that has the same length (in octets) as the RSA modulus.  When S
    > > contains leading zeros, there exist signers that will send a shorter
    > > encoding of S that omits them.  A verifier MAY accept shorter
    > > encodings of S with one or more leading zeros omitted.