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From: Gregory Maxwell <gmaxwell@gmail.com>
To: Alan Reiner <etotheipi@gmail.com>
Cc: Bitcoin Development <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Stealth Addresses
Date: Fri, 17 Jan 2014 21:09:42 -0800	[thread overview]
Message-ID: <CAAS2fgSdLXfKgbC+MtsiXdp9o7BNp1pc1p_G511LrgwOzGNZFg@mail.gmail.com> (raw)
In-Reply-To: <52DA093D.4070505@gmail.com>

On Fri, Jan 17, 2014 at 8:55 PM, Alan Reiner <etotheipi@gmail.com> wrote:
> Isn't there a much faster asymmetric scheme that we can use?  I've heard people talk about ed25519, though I'm not sure it can be used for encryption.

Doing ECDH with our curve is within a factor of ~2 of the fastest
encryption available at this security level, AFAIK.  And separate
encryption would ~double the amount of data vs using the ephemeral key
for derivation.

Using another cryptosystem would mandate carry around additional code
for a fast implementation of that cryptosystem, which wouldn't be
fantastic.

So I'm not sure much can be improved there.



  reply	other threads:[~2014-01-18  5:09 UTC|newest]

Thread overview: 88+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-06 12:03 [Bitcoin-development] Stealth Addresses Peter Todd
2014-01-08 10:20 ` Jeremy Spilman
2014-01-10 10:20   ` Peter Todd
2014-01-10 11:28     ` Drak
2014-01-10 12:00       ` Peter Todd
2014-01-12 10:33     ` Jeremy Spilman
2014-01-12 12:51       ` Mike Hearn
2014-01-12 18:20         ` Jeremy Spilman
2014-01-12 18:26           ` Mike Hearn
2014-01-13  9:13             ` Jeremy Spilman
2014-01-14 14:15               ` Peter Todd
2014-01-14 17:54                 ` Odinn Cyberguerrilla
2014-01-12 21:18       ` Gavin Andresen
2014-01-13  9:52         ` Gregory Maxwell
2014-01-13 10:39           ` Mike Hearn
2014-01-13 13:37             ` Roy Badami
2014-01-13 15:58               ` Mike Hearn
2014-01-13 20:11                 ` Roy Badami
2014-01-14 22:53                 ` Roy Badami
2014-01-15  0:19                   ` Drak
2014-01-15 20:22                     ` Ben Davenport
2014-01-15 20:38                       ` Gregory Maxwell
2014-01-15 20:44                         ` Jeff Garzik
2014-01-15 22:38                           ` [Bitcoin-development] Static addresses on chains encouraging address *RE* use Troy Benjegerdes
2014-01-15 23:01                           ` [Bitcoin-development] Stealth Addresses Mike Hearn
2014-01-15 23:04                           ` Roy Badami
2014-01-15 23:07                             ` Jeff Garzik
2014-01-15 23:17                               ` Roy Badami
2014-01-15 23:19                                 ` Roy Badami
2014-01-15 23:09                           ` [Bitcoin-development] unlinakble static address? & spv-privacy (Re: Stealth Addresses) Adam Back
2014-01-16  1:02                             ` Jeremy Spilman
2014-01-16  1:32                               ` Gregory Maxwell
2014-01-18 17:44                                 ` Troy Benjegerdes
2014-01-18 20:25                                   ` Christophe Biocca
2014-01-20 11:11                                   ` Peter Todd
2014-01-21  4:00                                 ` Jeremy Spilman
2014-01-24  9:17                                   ` Peter Todd
2014-01-16 11:42                               ` Adam Back
2014-01-16 18:19                                 ` Troy Benjegerdes
2014-01-16  0:05                           ` [Bitcoin-development] Stealth Addresses Jeremy Spilman
2014-01-16  0:10                             ` Gregory Maxwell
2014-01-16  0:24                             ` Mark Friedenbach
2014-01-16  0:44                             ` Eric Martindale
2014-01-16  6:26                               ` Gary Rowe
2014-01-16  9:48                                 ` Wladimir
2014-01-16  1:16                             ` Odinn Cyberguerrilla
2014-01-16 10:14                             ` Drak
2014-01-16 10:19                               ` Mike Hearn
2014-01-16 11:12                               ` [Bitcoin-development] reusable address privacy problems & fuzzy bait limitations (Re: Stealth Addresses) Adam Back
2014-01-16 21:28                             ` [Bitcoin-development] Stealth Addresses Peter Todd
2014-01-17  2:30                               ` Johnathan Corgan
2014-01-17  3:13                               ` Jeremy Spilman
2014-01-17  7:49                               ` Drak
2014-01-17  9:15                                 ` Mike Hearn
2014-01-17  9:19                                   ` Mark Friedenbach
2014-01-17  9:23                                   ` Natanael
2014-01-17  9:59                                   ` Drak
2014-01-17 20:16                                     ` Cameron Garnham
2014-01-17 14:46                                   ` Peter Todd
2014-01-17 19:21                                     ` Ben Davenport
2014-01-18  4:55                                       ` Alan Reiner
2014-01-18  5:09                                         ` Gregory Maxwell [this message]
2014-01-18 23:12                                           ` Jeremy Spilman
2014-01-18 23:50                                             ` Gregory Maxwell
2014-01-20 11:08                                             ` Peter Todd
2014-01-13 19:53               ` Roy Badami
2014-01-13 19:57                 ` Mike Hearn
2014-01-13 20:01                   ` Roy Badami
2014-01-13 19:40           ` Roy Badami
2014-01-13 19:44             ` Drak
2014-01-13 19:59               ` Alan Reiner
2014-01-13 20:10                 ` Gregory Maxwell
2014-01-13 20:15                   ` Peter Todd
2014-01-13 22:02                   ` Jeremy Spilman
2014-01-14 14:19                     ` Peter Todd
2014-01-14 19:12                       ` Jeremy Spilman
2014-01-14 20:48                         ` Peter Todd
2014-01-14 21:51                         ` Adam Back
2014-01-14 22:34                           ` Jeremy Spilman
2014-01-13 20:14                 ` Peter Todd
2014-01-13 20:41                   ` Alan Reiner
2014-01-13 20:47                     ` Gregory Maxwell
2014-01-13 21:02                     ` Roy Badami
2014-01-13 21:15                       ` Alan Reiner
2014-01-13 21:27                         ` Peter Todd
     [not found]                           ` <op.w9ne31oqyldrnw@laptop-air.hsd1.ca.comcast.net>
2014-01-14 12:10                             ` Peter Todd
2014-03-06 12:23 ` Dan Carter
     [not found] <mailman.417890.1389952750.21953.bitcoin-development@lists.sourceforge.net>
2014-01-17 12:16 ` joseph

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