Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 6C82EB2F for ; Tue, 9 May 2017 16:09:12 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from NAM01-BN3-obe.outbound.protection.outlook.com (mail-oln040092000086.outbound.protection.outlook.com [40.92.0.86]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 8FA4F161 for ; Tue, 9 May 2017 16:09:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=hotmail.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=IqzoHzFHgowhIhYpcspSMBYZfbH9WM9+rqqodrVsKbw=; b=R7/3erzWIr+vsDoXNly56XcUdBHpT95oM6v01VxhvdE20IE51Z1IQIOy/+UyDLSwFFd9wtIpe6vFzyRqHehEz1el3YTdErC/Rk34e/wWui5CdPQWpbgvakoiwEBLCPUor7n0sNMeCIlYAoemLA1LFDGVBmv8rRA8OEwWuMYguel984ML8OwH8dSOgzP2l29We+/aoapAcm0Fry6HNVn2uYL9HDOfBNCqSykUzLbNYmBvaBcBBFzB4bXfKAdGL+llZUuJN8DZnEbXxoRtf/8572na8jzzSjpX62nyfAXl3xJongNfJUIrkYaiQpzoqmMT/QPMQdH+y7zddKolXP/eNw== Received: from BN3NAM01FT030.eop-nam01.prod.protection.outlook.com (10.152.66.53) by BN3NAM01HT083.eop-nam01.prod.protection.outlook.com (10.152.67.105) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.1047.9; Tue, 9 May 2017 16:09:10 +0000 Received: from BN6PR18MB1348.namprd18.prod.outlook.com (10.152.66.53) by BN3NAM01FT030.mail.protection.outlook.com (10.152.66.117) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1047.9 via Frontend Transport; Tue, 9 May 2017 16:09:10 +0000 Received: from BN6PR18MB1348.namprd18.prod.outlook.com ([10.175.193.143]) by BN6PR18MB1348.namprd18.prod.outlook.com ([10.175.193.143]) with mapi id 15.01.1075.020; Tue, 9 May 2017 16:09:09 +0000 From: "Raystonn ." To: bitcoin-dev Thread-Topic: Network-layer attacks Thread-Index: AQHSyN4TSw3r43d+MkmEXPBb68u55Q== Date: Tue, 9 May 2017 16:09:09 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: lists.linuxfoundation.org; dkim=none (message not signed) header.d=none; lists.linuxfoundation.org; dmarc=none action=none header.from=hotmail.com; x-incomingtopheadermarker: OriginalChecksum:EFA8AC2ECB9B077C68FE69017B625675779AB2C81CFDA27566B8A6A1FF1272AA; UpperCasedChecksum:71F80837228481C817A161DC5D8AD33F8DD3DAF33A335CC82B61EE9C5692258D; SizeAsReceived:7985; Count:43 x-ms-exchange-messagesentrepresentingtype: 1 x-tmn: [JmbN3RxZs1zgFRu9HrfT/nzfzBQPBW2R] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; BN3NAM01HT083; 5:hvEd0vIO0X/tIIKyHAGT8AjjFUuDwZqKRrQGJyxtUliG8ULCNy80+KxOpcryZZQGf046jew0RBEpWamxWaMN/EOd1hn6sEyqxKgt5+wfEvCeBAAnHjcXTGjlx7Ad8vyRMnLHcpzumtnuHIXcOUnXhCTPklxk+yC6rX2nJfSoWxk=; 24:ILlLAaVxz22BnmjVpVAr05JlSCMlgIXqTJYIbbIUVjwme40U98TEcC9pTwr+E4hMWOseHQlg0lrL60BxbxwP2PJTgTVCITsC94jwJYV4I90=; 7:nRLv9EeVeAe00yPFFurOlp+X67pcYpI8Zk9XUCcfpgv42/fo23tVxSeOytV1XSaibGHzZt86nMp+2PItSRyOQiZ4hLxTzsTIYq4ilydXe6DGv7Uz5QkfzfMvFhn6jIJb4fgd2eCYSPI3hG+2UBUTMjS+L135vQB69/CT1JYIKvqRM5Q6s1LrLzQKpRyljhnITsKO0Gu5TO1JGEB9efViwdXARbxt3gxMrPB6H9pCKrIKXwwyVuMYgyccIL1F4HSgfs37lruFxtD6sekXBoyljNTR0rsFkyjVsA5BFeErEaeD8XI5wzHNuhy/7vJGfeyi x-incomingheadercount: 43 x-eopattributedmessage: 0 x-forefront-antispam-report: EFV:NLI; SFV:NSPM; SFS:(7070007)(98901004); DIR:OUT; SFP:1901; SCL:1; SRVR:BN3NAM01HT083; H:BN6PR18MB1348.namprd18.prod.outlook.com; FPR:; SPF:None; LANG:en; x-ms-office365-filtering-correlation-id: 3d4e6a46-88ea-4092-6a59-08d496f5ba18 x-microsoft-antispam: UriScan:; BCL:0; PCL:0; RULEID:(22001)(201702061074)(5061506573)(5061507331)(1603103135)(2017031320274)(2017031324274)(2017031323274)(2017031322274)(1603101448)(1601125374)(1701031045); SRVR:BN3NAM01HT083; x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(444000031); SRVR:BN3NAM01HT083; BCL:0; PCL:0; RULEID:; SRVR:BN3NAM01HT083; x-forefront-prvs: 0302D4F392 spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: multipart/alternative; boundary="_000_BN6PR18MB13483361D401D0A378BEBDCECDEF0BN6PR18MB1348namp_" MIME-Version: 1.0 X-OriginatorOrg: hotmail.com X-MS-Exchange-CrossTenant-originalarrivaltime: 09 May 2017 16:09:09.9008 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Internet X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN3NAM01HT083 X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, FREEMAIL_FROM, HTML_MESSAGE, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org X-Mailman-Approved-At: Tue, 09 May 2017 18:03:55 +0000 Subject: [bitcoin-dev] Network-layer attacks X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Bitcoin Protocol Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 May 2017 16:09:12 -0000 --_000_BN6PR18MB13483361D401D0A378BEBDCECDEF0BN6PR18MB1348namp_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable This study was released last week, detailing some attacks at the network la= yer: https://btc-hijack.ethz.ch/files/btc_hijack.pdf. Of the countermeasur= es discussed in the paper, the use of encryption to secure communications b= etween nodes looks like low hanging fruit. Raystonn --_000_BN6PR18MB13483361D401D0A378BEBDCECDEF0BN6PR18MB1348namp_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

This study was released last week, detailing some attacks at the network= layer: https://btc-= hijack.ethz.ch/files/btc_hijack.pdf.  Of the countermeasures discussed in the paper, the use of encryption to = secure communications between nodes looks like low hanging fruit.


Raystonn


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