From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Li Wang" Subject: [RFC] eCryptfs file system with HMAC verification Date: Tue, 10 Apr 2012 21:22:24 +0800 Message-ID: <000301cd171c$f8bb4cc0$ea31e640$@com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Received: from m50-132.163.com ([123.125.50.132]:41005 "EHLO m50-132.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752762Ab2DJNXp (ORCPT ); Tue, 10 Apr 2012 09:23:45 -0400 Content-Language: zh-cn Sender: ecryptfs-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: Tyler Hicks , dustin.kirkland@gazzang.com, torvalds@linux-foundation.org, akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, ecryptfs@vger.kernel.org, linux-fsdevel@vger.kernel.org Hi, we have implemented a prototype, which equips eCryptfs with HMAC verification, based on the kernel crypto API. This enables eCryptfs to detect unauthorized (cipher) data modification and unexpected data corruption. And the preliminary experiments demonstrate the decrease in throughput is modest. As a file system highlighting security, we think it should be useful. Any comments/suggestions are welcome. Cheers, Li Wang From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Li Wang" Subject: [RFC] eCryptfs file system with HMAC verification Date: Tue, 10 Apr 2012 21:22:24 +0800 Message-ID: <000301cd171c$f8bb4cc0$ea31e640$@com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: , , To: "Tyler Hicks" , , , Return-path: Content-Language: zh-cn Sender: ecryptfs-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Hi, we have implemented a prototype, which equips eCryptfs with HMAC verification, based on the kernel crypto API. This enables eCryptfs to detect unauthorized (cipher) data modification and unexpected data corruption. And the preliminary experiments demonstrate the decrease in throughput is modest. As a file system highlighting security, we think it should be useful. Any comments/suggestions are welcome. Cheers, Li Wang