From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.saout.de ([127.0.0.1]) by localhost (mail.saout.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NrO_aQ4dSrlq for ; Sat, 20 Apr 2013 15:11:07 +0200 (CEST) Received: from einhorn.in-berlin.de (einhorn.in-berlin.de [192.109.42.8]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.saout.de (Postfix) with ESMTPS for ; Sat, 20 Apr 2013 15:11:07 +0200 (CEST) Received: from [192.168.3.80] (brln-4db81c28.pool.mediaWays.net [77.184.28.40]) (authenticated bits=0) by einhorn.in-berlin.de (8.13.6/8.13.6/Debian-1) with ESMTP id r3KCkBQp020132 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Sat, 20 Apr 2013 14:46:12 +0200 Message-ID: <51728DDC.80306@fsfe.org> Date: Sat, 20 Apr 2013 14:45:16 +0200 From: Hannes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: [dm-crypt] Android dm-crypt implementation and GNU/Linux List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: dm-crypt@saout.de Hi everyone, I hope this is the right place to ask: I have a dualboot between Ubuntu Arm and Android on a mobile device of mine. The data-partition is encrypted using Android's builtin encryption and I'd like to share it with the Ubuntu. I have been searching quite a bit on the net, but I can't find answers onto whether this is possible and how. It seems to me that Android's dm-crypt implementation is custom (no LUKS...) and implemented in VolD. Am I right in assuming there is no way to make cryptsetup unlock the partition? And do you know of a standalone implementation that can decrypt the partition on a GNU/Linux system? I have come accross bruteforce attack program[1] that runs on a regular GNU/Linux, but I think that works directly on the footer of the partition and doesn't have any magic beyond that. I thought a standalone implementation should exist somewhere, as it seems unlikely the implementation was developed inside Android's VolD. Thanks for your help! Best, Hannes [1] https://github.com/santoku/Santoku-Linux/blob/master/tools/android/android_bruteforce_stdcrypto/bruteforce_stdcrypto.py