From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jakub Narebski Subject: Re: Supporting hashes other than SHA-1 Date: Mon, 11 May 2009 14:04:11 -0700 (PDT) Message-ID: References: <20090511195242.GA14756@foursquare.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: git@vger.kernel.org To: Chris Frey X-From: git-owner@vger.kernel.org Mon May 11 23:04:58 2009 Return-path: Envelope-to: gcvg-git-2@gmane.org Received: from vger.kernel.org ([209.132.176.167]) by lo.gmane.org with esmtp (Exim 4.50) id 1M3cgC-0004K8-W8 for gcvg-git-2@gmane.org; Mon, 11 May 2009 23:04:57 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758708AbZEKVEP (ORCPT ); Mon, 11 May 2009 17:04:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758435AbZEKVEO (ORCPT ); Mon, 11 May 2009 17:04:14 -0400 Received: from mail-fx0-f158.google.com ([209.85.220.158]:39878 "EHLO mail-fx0-f158.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757986AbZEKVEM (ORCPT ); Mon, 11 May 2009 17:04:12 -0400 Received: by fxm2 with SMTP id 2so2955359fxm.37 for ; Mon, 11 May 2009 14:04:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:received:received :x-authentication-warning:to:cc:subject:references:from:date :in-reply-to:message-id:lines:user-agent:mime-version:content-type; bh=kcri6PuG/Hf1WdiqNP62spB2vKZ6TneOcAwxstO2m+E=; b=TBZPSo5fcrPaR5UCjZp/q2nDI34taj592kCk37pRsfollbBXdGB3Jv0vnZQNG90F76 ftgoOCnDgxFRtngzhtrM3ez5d0XISSZ0tKAPy97KtJNOII44+H3WCVi4c8nEyCCM8Z/T hsB2QQMbgSPm3SnP/K1RlpzAg3drqrhD58Qvc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=x-authentication-warning:to:cc:subject:references:from:date :in-reply-to:message-id:lines:user-agent:mime-version:content-type; b=Z6BC06SgYsFVAessZXAKrtsJ2qzSBZSz5tJRGgB+lfW4tO4he2pDRj/IgqDDVwLU6h uWqVy+pNTMRBZ6TFLFXoOa+iMlg0R4HPQtg3pV/JxeQsjomJfUFOQ2Eo1pj1pFHhG7M1 XMZJ9yBkf/toWZ3u3LmXJ7rQ9aWNyIQEYbVRA= Received: by 10.86.59.2 with SMTP id h2mr6950145fga.30.1242075852076; Mon, 11 May 2009 14:04:12 -0700 (PDT) Received: from localhost.localdomain (absh130.neoplus.adsl.tpnet.pl [83.8.127.130]) by mx.google.com with ESMTPS id 3sm4006920fge.11.2009.05.11.14.04.10 (version=TLSv1/SSLv3 cipher=RC4-MD5); Mon, 11 May 2009 14:04:11 -0700 (PDT) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by localhost.localdomain (8.13.4/8.13.4) with ESMTP id n4BL4Bfs019161; Mon, 11 May 2009 23:04:12 +0200 Received: (from jnareb@localhost) by localhost.localdomain (8.13.4/8.13.4/Submit) id n4BL49oZ019158; Mon, 11 May 2009 23:04:09 +0200 X-Authentication-Warning: localhost.localdomain: jnareb set sender to jnareb@gmail.com using -f In-Reply-To: <20090511195242.GA14756@foursquare.net> User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.4 Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: Chris Frey writes: > Considering the recent news regarding SHA-1's newly found weaknesses, > is there any general interest in making git flexible enough to support > other hashes in the future? First, there isn't as far as I know any 'known preimage' attack against SHA-1, and only that would truly matter for Git. Second, this issue was discussed in depth in the past; check git mailing list archives, please... -- Jakub Narebski Poland ShadeHawk on #git