From darrenr@arbld.unimelb.edu.au Tue Sep 10 18:51:04 1996 Received: from pdx1.world.net (pdx1.world.net [192.243.32.18]) by suburbia.net (8.7.4/Proff-950810) with ESMTP id SAA08454 for ; Tue, 10 Sep 1996 18:50:36 +1000 Received: from arbld.unimelb.edu.au (vitruvius.arbld.unimelb.edu.au [128.250.136.1]) by pdx1.world.net (8.7.5/8.7.3) with SMTP id BAA15179 for ; Tue, 10 Sep 1996 01:01:56 -0700 (PDT) Received: (from darrenr@localhost) by arbld.unimelb.edu.au (8.6.12/8.6.12) id SAA11660 for best-of-security@suburbia.net; Tue, 10 Sep 1996 18:00:33 +1000 From: Darren Reed Message-Id: <199609100800.SAA11660@arbld.unimelb.edu.au> Subject: new paper (fwd) To: best-of-security@suburbia.net Date: Tue, 10 Sep 1996 18:00:33 +1000 (EST) X-Mailer: ELM [version 2.4 PL24] Content-Type: text > From: Steve Bellovin > Subject: new paper > Date: Thu, 05 Sep 1996 19:23:35 -0400 > > Folks on this mailing list may be interested in a new draft paper of mine: > > Probable Plaintext Cryptanalysis of the IP Security Protocols > > The Internet Engineering Task Force (IETF) is in the process > of adopting standards for IP-layer encryption and authentication > (IPSEC). We describe how ``probable plaintext'' can be > used to aid in cryptanalytic attacks, and analyze the > protocol to show how much probable plaintext is available. > We also show how traffic analysis is a powerful aid to the > cryptanalyst. We conclude by outlining some likely changes > to the underlying protocols that may strengthen them against > these attacks. > > It's available from ftp://ftp.research.att.com/dist/smb/probtxt.ps