IETF Logo Mail Archive

Re: [Acme] Fixing the TLS-SNI challenge type

"Salz, Rich" <rsalz@akamai.com> Fri, 19 January 2018 18:33 UTC

Return-Path: <rsalz@akamai.com>
X-Original-To: acme@ietfa.amsl.com
Delivered-To: acme@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 91183127735 for <acme@ietfa.amsl.com>; Fri, 19 Jan 2018 10:33:53 -0800 (PST)
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 jHcYMwsPgJKy for <acme@ietfa.amsl.com>; Fri, 19 Jan 2018 10:33:52 -0800 (PST)
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 06676127023 for <acme@ietf.org>; Fri, 19 Jan 2018 10:33:52 -0800 (PST)
Received: from pps.filterd (m0122333.ppops.net [127.0.0.1]) by mx0a-00190b01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w0JIWh0x029111; Fri, 19 Jan 2018 18:33:50 GMT
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=akamai.com; h=from : to : cc : subject : date : message-id : references : in-reply-to : content-type : content-id : content-transfer-encoding : mime-version; s=jan2016.eng; bh=Y9ElkihEJUyYQaHXqxGfvgozXBmDHoJvwlEcT00xVnE=; b=DrOB9akfnKKWLKEpRaHzCrJ3mLVWQmkAbMxSQ0ENJRUJt/yHkxTXqJlHtEZxRChP4lsP k+SJ69z1zaDnoXAOe78EUA0J/rutD1OwRhh6SZe8RGI7T0cZVgQ937bChB4saISP17YO NynJ8KHGDHsgqXLKrULcDUQsAgNv6j1708fwBL3b686mT4vefNtcdP0QZ+eRVXMRjARy zsmUtwU0wqdDSfbLzeIiXIkeP/YpmSOo/8Fx6oEqqcR80shWk5Sakd+GOtgzMEgL7XPx Cmj+MlXyxrvATA3PWgHioYwFgWspAjB9daDvV9tBzYlB7/176e+Uhnf5OIxQbFnLdpQ+ gw==
Received: from prod-mail-ppoint3 ([96.6.114.86]) by mx0a-00190b01.pphosted.com with ESMTP id 2fhpsdb08g-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 19 Jan 2018 18:33:49 +0000
Received: from pps.filterd (prod-mail-ppoint3.akamai.com [127.0.0.1]) by prod-mail-ppoint3.akamai.com (8.16.0.21/8.16.0.21) with SMTP id w0JIVlQs027330; Fri, 19 Jan 2018 13:33:49 -0500
Received: from email.msg.corp.akamai.com ([172.27.123.31]) by prod-mail-ppoint3.akamai.com with ESMTP id 2ffebfhg7n-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Fri, 19 Jan 2018 13:33:48 -0500
Received: from USMA1EX-DAG1MB1.msg.corp.akamai.com (172.27.123.101) by usma1ex-dag1mb6.msg.corp.akamai.com (172.27.123.65) with Microsoft SMTP Server (TLS) id 15.0.1263.5; Fri, 19 Jan 2018 13:33:47 -0500
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; Fri, 19 Jan 2018 13:33:47 -0500
From: "Salz, Rich" <rsalz@akamai.com>
To: Ilari Liusvaara <ilariliusvaara@welho.com>, Tim Hollebeek <tim.hollebeek@digicert.com>
CC: IETF ACME <acme@ietf.org>
Thread-Topic: [Acme] Fixing the TLS-SNI challenge type
Thread-Index: AQHTiy1UD0ppEldPZ06gP5Y9hb2FNqNvu/GAgAAmFACAAM+hAIAK862AgAACIoCAAA0gAIAAAqSAgAAD44CAABbygIAAEriAgAAAxoA=
Date: Fri, 19 Jan 2018 18:33:47 +0000
Message-ID: <F458BA45-B8F7-46B0-AA70-EEF9DC318F03@akamai.com>
References: <FC8545A9-4D43-4BCC-ADB1-40A0F92461E8@titanous.com> <F2551BE5-0866-4F03-972E-E223E8D60001@letsencrypt.org> <a506c023-ff44-7f14-71b1-94e4e810cd12@letsencrypt.org> <0603b570-f790-88a7-5514-b324eff4f087@figel.email> <CAKnbcLj=eYhm8qRj0B0U5FOu=UMn0wY+5apkJ-aHhhfh+mS-uw@mail.gmail.com> <CAKnbcLj+UaUbu=EDbPU8UWwm9hUefXBKmtS=ZwSy7_2zCA=pmg@mail.gmail.com> <20180119153832.GA28022@LK-Perkele-VII> <CAL02cgRmAb7G-8EkK9UBZs36FMRMyfU1v0JVwVRXjXBO0TR8Hg@mail.gmail.com> <20180119160153.GA28756@LK-Perkele-VII> <DM5PR14MB12897EDDBC38AB0AC2C95D2883EF0@DM5PR14MB1289.namprd14.prod.outlook.com> <20180119183101.GA29126@LK-Perkele-VII>
In-Reply-To: <20180119183101.GA29126@LK-Perkele-VII>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
user-agent: Microsoft-MacOutlook/f.27.0.171010
x-ms-exchange-messagesentrepresentingtype: 1
x-ms-exchange-transport-fromentityheader: Hosted
x-originating-ip: [172.19.35.72]
Content-Type: text/plain; charset="utf-8"
Content-ID: <E70A324ECE406B46B96D17975D920480@akamai.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2018-01-19_07:, , 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=526 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1801190241
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2018-01-19_07:, , 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=454 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1801190241
Archived-At: <https://mailarchive.ietf.org/arch/msg/acme/ex4lCiwAlzhvquc4Fd1g4qHBViw>
Subject: Re: [Acme] Fixing the TLS-SNI challenge type
X-BeenThere: acme@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: Automated Certificate Management Environment <acme.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/acme>, <mailto:acme-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/acme/>
List-Post: <mailto:acme@ietf.org>
List-Help: <mailto:acme-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/acme>, <mailto:acme-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 19 Jan 2018 18:33:54 -0000

➢ challenge: Random string of at least 128 bits of entropy.
    

What does that mean?  How can you measure if you’ve got 125 or 67 or 2 bits of entropy?

v2.23.0 | Report a Bug | By Email