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authorAdam Back <adam.back@gmail.com>2018-01-23 06:16:22 -0800
committerbitcoindev <bitcoindev@gnusha.org>2018-01-23 14:16:25 +0000
commit3cf453e550021b18ee4ea356d9f4046392363125 (patch)
tree6f766bbdbeb0f263ca7c410ee5601827ddfcd80d
parent95708839e03eefcac0fc9ae67a9e6620992d6761 (diff)
downloadpi-bitcoindev-3cf453e550021b18ee4ea356d9f4046392363125.tar.gz
pi-bitcoindev-3cf453e550021b18ee4ea356d9f4046392363125.zip
Re: [bitcoin-dev] Satoshilabs secret shared private key scheme
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+In-Reply-To: <bf402c77-cfdd-f38d-43a9-23f1c3273b9d@satoshilabs.com>
+References: <51280a45-f86b-3191-d55e-f34e880c1da8@satoshilabs.com>
+ <CAAS2fgRQk4EUp6FO2f+RkJpDTyZX0N4=uGp7ZF=0aUchZX8hSA@mail.gmail.com>
+ <4003eed1-584f-9773-8cf9-6300ebd1eac6@satoshilabs.com>
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+ <d6eb0fc3-d729-30cb-986b-b1d7b8aacbd6@satoshilabs.com>
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+ <bf402c77-cfdd-f38d-43a9-23f1c3273b9d@satoshilabs.com>
+From: Adam Back <adam.back@gmail.com>
+Date: Tue, 23 Jan 2018 06:16:22 -0800
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+To: =?UTF-8?Q?Ond=C5=99ej_Vejpustek?= <ondrej.vejpustek@satoshilabs.com>,
+ Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
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+Subject: Re: [bitcoin-dev] Satoshilabs secret shared private key scheme
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+
+Makwa sites [1] https://bitcointalk.org/index.php?topic=3D311000.0
+
+Seems like they independently rediscovered it.
+
+Adam
+
+
+On 23 January 2018 at 05:54, Ond=C5=99ej Vejpustek via bitcoin-dev
+<bitcoin-dev@lists.linuxfoundation.org> wrote:
+>> Yes, this scheme.
+>> https://bitcointalk.org/index.php?topic=3D311000.msg3342217#msg3342217
+>
+> In addition to the scheme, I found out, that Makwa
+> (https://www.bolet.org/makwa/), a hashing function which received a
+> special recognition in the Password Hashing Competition, supports a
+> delegation. In fact, Makwa is similar to the suggested scheme.
+>
+> Unfortunately, both schemes have two drawbacks:
+> (1) There is no proof that the host computes what he's suppose to do.
+> (2) The delegation is far more slower than the normal computation.
+> According to the Makwa paper
+> (https://www.bolet.org/makwa/makwa-spec-20150422.pdf) the delegation is
+> typically 100 to 1000 slower. So I see little advantage in delegating.
+>
+> I doubt there is a scheme that suits our needs.
+> _______________________________________________
+> bitcoin-dev mailing list
+> bitcoin-dev@lists.linuxfoundation.org
+> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
+
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