From dev-return-24591-apmail-apr-dev-archive=apr.apache.org@apr.apache.org Wed Jan 11 00:37:42 2012 Return-Path: X-Original-To: apmail-apr-dev-archive@www.apache.org Delivered-To: apmail-apr-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 96128B291 for ; Wed, 11 Jan 2012 00:37:42 +0000 (UTC) Received: (qmail 26033 invoked by uid 500); 11 Jan 2012 00:37:42 -0000 Delivered-To: apmail-apr-dev-archive@apr.apache.org Received: (qmail 25870 invoked by uid 500); 11 Jan 2012 00:37:41 -0000 Mailing-List: contact dev-help@apr.apache.org; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Id: Delivered-To: mailing list dev@apr.apache.org Received: (qmail 25860 invoked by uid 99); 11 Jan 2012 00:37:41 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 11 Jan 2012 00:37:41 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=5.0 tests=SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of bojan@rexursive.com designates 150.101.121.179 as permitted sender) Received: from [150.101.121.179] (HELO beauty.rexursive.com) (150.101.121.179) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 11 Jan 2012 00:37:33 +0000 Received: from [10.1.120.20] (shrek.rexursive.com [10.1.120.20]) by beauty.rexursive.com (Postfix) with ESMTPSA id 4F3521A98DB; Wed, 11 Jan 2012 11:37:11 +1100 (EST) Message-ID: <1326242231.14615.77.camel@shrek.rexursive.com> Subject: Re: Hash collision vectors in APR? From: Bojan Smojver To: Chris Darroch Cc: APR Development List Date: Wed, 11 Jan 2012 11:37:11 +1100 In-Reply-To: <4F0CC9CC.8050707@pearsoncmg.com> References: <4F05E1A9.7010408@rowe-clan.net> <1325801617.14615.31.camel@shrek.rexursive.com> <4F0626BA.6040905@rowe-clan.net> <1325803710.14615.34.camel@shrek.rexursive.com> <1325804747.14615.37.camel@shrek.rexursive.com> <1325807520.14615.39.camel@shrek.rexursive.com> <1326154944.14615.63.camel@shrek.rexursive.com> <4F0CC9CC.8050707@pearsoncmg.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.2 (3.2.2-1.fc16) Content-Transfer-Encoding: 7bit Mime-Version: 1.0 X-Virus-Checked: Checked by ClamAV on apache.org On Tue, 2012-01-10 at 15:29 -0800, Chris Darroch wrote: > I don't know if any of that is useful for APR, but there it is. There is a function a bit like this in APR: get_random_info() in crypto/getuuid.c. Essentially, if there is no apr_generate_random_bytes(), then do the "magic". -- Bojan