From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id BF3E7499 for ; Thu, 8 Nov 2018 08:18:16 +0000 (UTC) X-Greylist: delayed 00:06:37 by SQLgrey-1.7.6 Received: from mail.ruggedbytes.com (mail.ruggedbytes.com [88.99.30.248]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 3CF6E76F for ; Thu, 8 Nov 2018 08:18:16 +0000 (UTC) Received: from mail.ruggedbytes.com (localhost [127.0.0.1]) by mail.ruggedbytes.com (Postfix) with ESMTPS id D55102600548; Thu, 8 Nov 2018 08:11:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=simplexum.com; s=mail; t=1541664696; bh=L2ArbstCcgZXaUKFi9I5GH6zjYxvcfw3S6pUQZ8eblE=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=YBsHey5S8tDManuyKxpxujtZHGwMw6pdPIdWJ2izjBnEqK6lGma0cN6zoQSRMC4A7 SDLd7f670Lurhpb2qAxfjMcInjNlL8/+LhAhNcTxaAKoMdQVe7j8m1+ZafEsnmQzs7 UmRJvToGj8Tnw+fsIRJ2f/ck+tNzeZ8AtZgmbjMs= Date: Thu, 8 Nov 2018 13:11:30 +0500 From: Dmitry Petukhov To: bitcoin-dev@lists.linuxfoundation.org Message-ID: <20181108131130.134b2d43@simplexum.com> In-Reply-To: References: Organization: simplexum.com MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU 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: Thu, 08 Nov 2018 09:40:22 +0000 Cc: Andreas Schildbach Subject: Re: [bitcoin-dev] BIP Proposal - Address Paste Improvement 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: Thu, 08 Nov 2018 08:18:16 -0000 > Copying addresses to the clipboard should be discouraged, rather than > supported. Do you know any reasonably convenient mechanism for end user to transfer an address from, say, a web page to the wallet address input field ? The clipboard is just a low-hanging fruit for malware, anyway. It just the most easy point to replace an address. If the computer is compromized, malware can edit the web page in the memory of the browser process, for example. If it shown as QR code, malware can decode, detect that it is an address, and replace the image of QR code. I think that the only way to protect from this is to add some form of authentication for an address - 2fa (transfer checksum via second channel), visual fingerprints for addresses, that will are hard to detect (and hence, replace) for malware, signing the destination address with the key of an address that is already known and checking the signature, etc. The problem will be to come up with an address authentication procedure that will be convenient for users and widely supported, as a result.