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From: Steve Davis <steven.charles.davis@gmail.com>
To: Pieter Wuille <pieter.wuille@gmail.com>
Cc: Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] SHA1 collisions make Git vulnerable to attakcs by third-parties, not just repo maintainers
Date: Sun, 26 Feb 2017 00:26:45 -0600	[thread overview]
Message-ID: <4F6C2972-A320-429A-BD13-623B01F390A3@gmail.com> (raw)
In-Reply-To: <CAPg+sBhZ1UqOLqz_PVjjrE8Cbte_Y160Gq7P7EWf6cRKjMcDEQ@mail.gmail.com>

Hi Pieter,

> On Feb 25, 2017, at 4:14 PM, Pieter Wuille <pieter.wuille@gmail.com> wrote:
> 
> Any alternative to move us away from RIPEMD160 would require:

> <snipped>

“Any alternative”? What about reverting to:

[<public_key>, OP_CHECKSIG]

or perhaps later

[<“compressed” public_key>, OP_CHECKSIG]

This appears to get away from the issue without introducing a lot of other concerns?

(IIRC the RIPEMD thing was justified on convenience and compactness).

Could that be the alternative?

/s



  parent reply	other threads:[~2017-02-26  6:26 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <mailman.22137.1487974823.31141.bitcoin-dev@lists.linuxfoundation.org>
2017-02-24 23:49 ` [bitcoin-dev] SHA1 collisions make Git vulnerable to attakcs by third-parties, not just repo maintainers Steve Davis
2017-02-25  1:01   ` Peter Todd
2017-02-25 12:04     ` Steve Davis
2017-02-25 14:50       ` Leandro Coutinho
2017-02-25 16:10         ` Ethan Heilman
2017-02-25 17:45           ` Shin'ichiro Matsuo
2017-02-27  9:15             ` Henning Kopp
2017-02-25 18:19           ` Alice Wonder
2017-02-25 18:36             ` Ethan Heilman
2017-02-25 19:12           ` Peter Todd
2017-02-25 20:42             ` Watson Ladd
2017-02-25 20:57               ` Peter Todd
2017-02-25 20:53             ` Russell O'Connor
2017-02-25 21:04               ` Peter Todd
2017-02-25 21:21                 ` Dave Scotese
2017-02-25 21:34                   ` Steve Davis
2017-02-25 21:40                     ` Peter Todd
2017-02-25 21:54                       ` Steve Davis
2017-02-25 22:14                         ` Pieter Wuille
2017-02-25 22:34                           ` Ethan Heilman
2017-02-26  6:26                           ` Steve Davis [this message]
2017-02-26  6:36                             ` Pieter Wuille
2017-02-26  7:16                               ` Steve Davis
     [not found]                                 ` <CAPg+sBirowtHqUT5GUJf9hmDEACKVX19HAon-rrz7GmO8OBsNg@mail.gmail.com>
2017-02-26 16:53                                   ` Steve Davis
2017-02-25 23:09                       ` Leandro Coutinho
2017-02-23 18:14 Peter Todd
2017-02-23 21:28 ` Peter Todd
2017-02-23 23:57   ` Aymeric Vitte
2017-02-24 10:04     ` Tim Ruffing
2017-02-24 15:18       ` Aymeric Vitte
2017-02-24 16:30         ` Tim Ruffing
2017-02-24 17:29           ` Aymeric Vitte

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