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Groups > comp.misc > #17980

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

From Dan Purgert <dan@djph.net>
Newsgroups comp.misc
Subject Re: [Link Posting] [Cfrg] Notice on chosen-prefix collisions for SHA-1
Date 2019-05-13 11:29 +0000
Organization A noiseless patient Spider
Message-ID <slrnqdil86.n0k.dan@djph.net> (permalink)
References <m342G3d+yWNiFpR1l58s6ToQ@dont-email.me>

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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.


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|_|_|O| Github: https://github.com/dpurgert
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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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