# SHA-1 is broken

**URL:** https://forum.duniter.org/t/sha-1-is-broken/1933
**Category:** Discussion
**Created:** [24 February 2017 17:16 UTC](https://forum.duniter.org/t/sha-1-is-broken/1933 "2017-02-24T17:16:53Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![b3j0f](https://forum.duniter.org/user_avatar/forum.duniter.org/b3j0f/32/2841_2.png) [@b3j0f](https://forum.duniter.org/u/b3j0f)
#### Post date: [24 February 2017 17:16 UTC](https://forum.duniter.org/t/sha-1-is-broken/1933/1 "2017-02-24T17:16:53Z")

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Est-ce que vous utilisez le sha-1 dans duniter ?

Parce qu’un ami m’a envoyé ça :

> **[Announcing the first SHA1 collision](https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html)**
>
> Posted by Marc Stevens (CWI Amsterdam), Elie Bursztein (Google), Pierre Karpman (CWI Amsterdam), Ange Albertini (Google), Yarik Markov (Goog...

Je me rends compte des impacts que ça a sur un tas de systèmes, mais je ne sais pas concernant duniter ?

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### Author: ![Inso](https://forum.duniter.org/user_avatar/forum.duniter.org/inso/32/1229_2.png) [@Inso](https://forum.duniter.org/u/Inso)
#### Post date: [24 February 2017 17:18 UTC](https://forum.duniter.org/t/sha-1-is-broken/1933/2 "2017-02-24T17:18:26Z")

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On est sur SHA-256 😉