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 C19BB8D4 for ; Wed, 17 Aug 2016 07:27:05 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-yb0-f173.google.com (mail-yb0-f173.google.com [209.85.213.173]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 09E88112 for ; Wed, 17 Aug 2016 07:27:05 +0000 (UTC) Received: by mail-yb0-f173.google.com with SMTP id z10so19372184ybh.2 for ; Wed, 17 Aug 2016 00:27:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ledger-fr.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=4/p/uT2frLSygsMRsTvbuKQ2nfDPhbno77fkV8wArBg=; b=QA24ZSUpm/aFo6kqRP4Zj1M387XN/oWIEmfzM3jMMlg3ZMa25ymFksXGa0Vcn9sCFY VsSLx213eG2zzOk1ZUOXQUt/D1jc+/YGNMS3HdQe3BUXLoL2H2nMN014BLI5FZkGtQ5q 53IMXncAf7mR+Kkh7Xjw08tpRKO8PYWC5wJd7aWh0UOyLgDom/CRQqQiQkD1dA45+hXX G1a5PED4n7l8BOYcLKq81FdUD17wNyS4uGPqJrjWPTUx5owPBx6LDi5EqUvl9XLUHamr vTrc7jCZ5orTEFMfsF1fUTm+Z9HzA4E0wnIjtaHbY0cZhqgDNTRHwDPXtRQSMmzXeG50 6yGw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=4/p/uT2frLSygsMRsTvbuKQ2nfDPhbno77fkV8wArBg=; b=j7ImhAjm7I6r6SKhCCaQbg14jTSbvNUSi9ZdCxpIE5lWNnHwDKVW6FpVJAYs0YgYAQ EMdKWWUK2WbWlHR7GcDwKqMJHN7Jkf5HtWVG2jyf0r5IMn1lzw3m1/9ShAGUxJlvAnlk 7hhMMPQb+k/sjHr7Wuk+EjiknQTosmNU5ROwKO7VnKUJXv/+yxEHqhX7jSF++tbGXZN4 qng4hi1BiYGYJf8Uchv+v6kP7ZaQeS4RwZakHd/bHZRWN4Nkj8DDyALl/9k6sngZYEPq 7N+5lA+7xUEN7U+RfkTrdhktedOtVFzaDvoFOvEnbKTwKL9TsG6GXYrC+155lQ7HdB9V V9HQ== X-Gm-Message-State: AEkoousrzc5EouXLS7AiJoKk+xDibiJ8tOKRDG6WEX4r3q1XAUB84NG4yG96kaq1h6fjgJoxhESPx53Nqi0jtg== X-Received: by 10.37.218.131 with SMTP id n125mr24931278ybf.162.1471418823986; Wed, 17 Aug 2016 00:27:03 -0700 (PDT) MIME-Version: 1.0 Received: by 10.129.157.73 with HTTP; Wed, 17 Aug 2016 00:27:03 -0700 (PDT) In-Reply-To: <20160817001407.GA6571@fedora-21-dvm> References: <57B31EBC.1030806@jonasschnelli.ch> <0501f5c2-611c-53c1-5fd1-d4da5ba5137b@gmail.com> <20160817001407.GA6571@fedora-21-dvm> From: Nicolas Bacca Date: Wed, 17 Aug 2016 09:27:03 +0200 Message-ID: To: Bitcoin Protocol Discussion Content-Type: multipart/alternative; boundary=94eb2c07e256521f5c053a3f6493 X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HTML_MESSAGE,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Subject: Re: [bitcoin-dev] Hardware Wallet Standard 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: Wed, 17 Aug 2016 07:27:05 -0000 --94eb2c07e256521f5c053a3f6493 Content-Type: text/plain; charset=UTF-8 On Wed, Aug 17, 2016 at 2:14 AM, Peter Todd via bitcoin-dev < bitcoin-dev@lists.linuxfoundation.org> wrote: > > I'm not aware of any ECC-enabled smart-cards that can sign the specific > curve > that Bitcoin uses, not to mention the fact that those smartcards generally > only > speak higher level protocols than raw signature generation, precluding the > signing of bitcoin transactions. > any Java Card supporting ECC can sign on user supplied Weierstrass curve parameters - you can find a good shopping list at http://www.fi.muni.cz/~xsvenda/jcsupport.html (look for ALG_ECDSA_SHA256 on javacard.crypto.signature). The NXP JCOP platform (found in Yubico Neo) is a popular choice, and then you can add your own custom logic for validation. -- Nicolas Bacca | CTO, Ledger --94eb2c07e256521f5c053a3f6493 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

= On Wed, Aug 17, 2016 at 2:14 AM, Peter Todd via bitcoin-dev <bitcoin-dev@lists.linuxfoundation.org> wrote:

I'm not aware of any ECC-enabled smart-cards that can sign the s= pecific curve
that Bitcoin uses, not to mention the fact that those smartcards generally = only
speak higher level protocols than raw signature generation, precluding the<= br> signing of bitcoin transactions.

any Ja= va Card supporting ECC can sign on user supplied Weierstrass curve paramete= rs - you can find a good shopping list at=C2=A0http://www.fi.muni.cz/~xsvenda/jcsupport.html= (look for ALG_ECDSA_SHA256 on javacard.crypto.signature). The NXP JCOP= platform (found in Yubico Neo) is a popular choice, and then you can add y= our own custom logic for validation.
=C2=A0
--
Nicolas Bacca | CTO, Ledger



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