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Re: [Link Posting] [Cfrg] Notice on chosen-prefix collisions for SHA-1

From Bob Eager <news0073@eager.cx>
Newsgroups comp.misc
Subject Re: [Link Posting] [Cfrg] Notice on chosen-prefix collisions for SHA-1
Date 2019-05-13 21:05 +0000
Message-ID <gju4goFu7p7U4@mid.individual.net> (permalink)
References <m342G3d+yWNiFpR1l58s6ToQ@dont-email.me> <slrnqdil86.n0k.dan@djph.net> <gjtch5F7v0uU3@mid.individual.net> <slrnqdjb3i.ds3.dan@djph.net>

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On Mon, 13 May 2019 17:42:10 +0000, Dan Purgert wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
> 
> Huge wrote:
>> On 2019-05-13, Dan Purgert <dan@djph.net> wrote:
>>>
>>> Rich wrote:
>>>> [...]
>>>> The text below is a quotation from the URL above:
>>>>>
>>>>>  We, Gaetan Leurent and myself, would like to emphasize some results
>>>>>  we will present in a few days at Eurocrypt 2019 [LP19]. ePrint
>>>>>  version available here: https://eprint.iacr.org/2019/459.pdf
>>>>>
>>>>>  [TL;DR] Chosen-prefix collisions for SHA-1 hash function are now
>>>>>  practical (cost lower than 100K $), all hope is lost.
>>>
>>> Finally, something I can use to back up "this is bad, and you should
>>> feel bad" when people want to keep from upgrading their ancient
>>> setups.
>>
>> I banned SHA1 at ${MEGABANK} as soon as the theoretical breaks became
>> known, with full support of management.
> 
> Can I work for you?

He is proudly retired.

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Thread

[Link Posting] [Cfrg] Notice on chosen-prefix collisions for SHA-1 Rich <rich@example.invalid> - 2019-05-12 03:11 +0000
  Re: [Link Posting] [Cfrg] Notice on chosen-prefix collisions for SHA-1 Dan Purgert <dan@djph.net> - 2019-05-13 11:29 +0000
    Re: [Link Posting] [Cfrg] Notice on chosen-prefix collisions for SHA-1 Huge <Huge@nowhere.much.invalid> - 2019-05-13 14:16 +0000
      Re: [Link Posting] [Cfrg] Notice on chosen-prefix collisions for SHA-1 Dan Purgert <dan@djph.net> - 2019-05-13 17:42 +0000
        Re: [Link Posting] [Cfrg] Notice on chosen-prefix collisions for SHA-1 Bob Eager <news0073@eager.cx> - 2019-05-13 21:05 +0000
          Re: [Link Posting] [Cfrg] Notice on chosen-prefix collisions for SHA-1 Dan Purgert <dan@djph.net> - 2019-05-13 22:40 +0000
        Re: [Link Posting] [Cfrg] Notice on chosen-prefix collisions for SHA-1 Huge <Huge@nowhere.much.invalid> - 2019-05-14 00:18 +0000

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