From owner-freebsd-security@FreeBSD.ORG Wed Aug 18 19:26:44 2004 Return-Path: Delivered-To: freebsd-security@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4E18B16A4CE for ; Wed, 18 Aug 2004 19:26:44 +0000 (GMT) Received: from recife.ipadnet.com.br (recife.ipadnet.com.br [200.249.204.129]) by mx1.FreeBSD.org (Postfix) with ESMTP id BDD4E43D49 for ; Wed, 18 Aug 2004 19:26:42 +0000 (GMT) (envelope-from mario.lobo@ipad.com.br) Received: from marioLobo ([200.249.204.142]) by recife.ipadnet.com.br (8.12.8/8.12.8) with ESMTP id i7IJhpX4018096; Wed, 18 Aug 2004 16:43:52 -0300 From: mario.lobo@ipad.com.br Organization: IPAD To: "Peter C. Lai" Date: Wed, 18 Aug 2004 16:27:26 -0300 MIME-Version: 1.0 Message-ID: <4123836E.9751.1DE28B5@localhost> Priority: normal In-reply-to: <20040818182957.GK346@cowbert.net> References: <41239B0C.1000703@rdslink.ro> X-mailer: Pegasus Mail for Windows (4.21c) Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: Quoted-printable Content-description: Mail message body cc: freebsd-security@freebsd.org Subject: Re: Report of collision-generation with MD5 X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: mario.lobo@ipad.com.br List-Id: Security issues [members-only posting] List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Aug 2004 19:26:44 -0000 How about a password hash? Wouldn=B4t those collisions enable the criation= of a different password with the same hash? -- //| //|| // | // || -//--//---|| ARIO LOBO // // || --------------------------------- mario.lobo@ipad.com.br http://www.ipad.com.br On 18 Aug 2004 at 14:29, Peter C. Lai wrote: > On Wed, Aug 18, 2004 at 09:08:12PM +0300, Claudiu wrote: > > hello, > > > > please explain what do you mean by "reverse the hash". Is this the > > recreation of the originial message from its hash ? > > The short answer is yes. The slightly longer answer is that such is only= one > specific case. The general case is that the digest should not reveal any= > information about the original message. > > _______________________________________________ > freebsd-security@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-security > To unsubscribe, send any mail to "freebsd-security-unsubscribe@freebsd.o= rg"