From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: * X-Spam-Status: No, score=1.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,PDS_TONAME_EQ_TOLOCAL_SHORT,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BBB62C33C8C for ; Tue, 7 Jan 2020 17:39:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9BC9320848 for ; Tue, 7 Jan 2020 17:39:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728348AbgAGRjq (ORCPT ); Tue, 7 Jan 2020 12:39:46 -0500 Received: from ikke.info ([178.21.113.177]:56460 "EHLO vps892.directvps.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728325AbgAGRjq (ORCPT ); Tue, 7 Jan 2020 12:39:46 -0500 X-Greylist: delayed 514 seconds by postgrey-1.27 at vger.kernel.org; Tue, 07 Jan 2020 12:39:46 EST Received: by vps892.directvps.nl (Postfix, from userid 1008) id 35D9B4400DA; Tue, 7 Jan 2020 18:31:11 +0100 (CET) Date: Tue, 7 Jan 2020 18:31:11 +0100 From: Kevin Daudt To: git Subject: SHA-1 chosen-prefix colission attack Message-ID: <20200107173111.GB923852@alpha> Mail-Followup-To: Kevin Daudt , git MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Researchers published new advances in creating collisions in SHA-1 hashes: https://sha-mbles.github.io/ > As a side result, this shows that it now costs less than 100k USD to > break cryptography with a security level of 64 bits (i.e. to compute > 264 operations of symmetric cryptography). Kevin