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

Path csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From Huge <Huge@nowhere.much.invalid>
Newsgroups comp.misc
Subject Re: [Link Posting] [Cfrg] Notice on chosen-prefix collisions for SHA-1
Date 14 May 2019 00:18:37 GMT
Organization Piglet's Pickles & Preserves
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On 2019-05-13, Dan Purgert <dan@djph.net> wrote:
>
> 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?

Sadly not.  Partly because I'm cranky, but mainly because I'm retired.


-- 
I don't have an attitude problem.  If you have a problem with my
              attitude, that's your problem.

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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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