From owner-freebsd-security Sat Mar 24 15:36:47 2001 Delivered-To: freebsd-security@freebsd.org Received: from bootp-20-219.bootp.virginia.edu (bootp-20-219.bootp.Virginia.EDU [128.143.20.219]) by hub.freebsd.org (Postfix) with ESMTP id D376637B71D for ; Sat, 24 Mar 2001 15:36:43 -0800 (PST) (envelope-from mipam@virginia.edu) Received: by bootp-20-219.bootp.virginia.edu (Postfix) id 394231D001; Sat, 24 Mar 2001 18:38:49 -0500 (EST) Date: Sat, 24 Mar 2001 18:38:48 -0500 From: Mipam To: Jeremy Karteczka Cc: freebsd-security@FreeBSD.ORG Subject: Re: Trying to set up an IKE vpn between FreeBSD and Checkpoint FW-1 Message-ID: <20010324183848.A4464@bootp-20-219.bootp.virginia.edu> Reply-To: mipam@ibb.net References: <05ae01c0b41e$1f82ac90$0200a8c0@jose> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <05ae01c0b41e$1f82ac90$0200a8c0@jose>; from jerkart@mw.mediaone.net on Fri, Mar 23, 2001 at 11:51:38PM -0500 X-Operating-System: BSD Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Fri, Mar 23, 2001 at 11:51:38PM -0500, Jeremy Karteczka wrote: > Greetings, > I am trying to get an IKE vpn going between a 4.2-RELEASE machine (using racoon > for key exchange) and a Checkpoint firewall (v4.1 SP3). I have tried both sha1 [SNIP] > I have looked for RFCs to find out which is the accepted standard but could not > find one that specifically states how long the key should be for each hash > method. > Can anyone point me to the proper RFCs and/or tell me if there is a way I can > reverse the expected key lenght on the FreeBSD side? md5 is 128 bits and sha1 is 160 bits. For some rfc's to read: RFC 2085 - HMAC-MD5 IP Authentication with Replay Prevention RFC 2104 - HMAC: Keyed-Hashing for Message Authentication RFC 2202 - Test Cases for HMAC-MD5 and HMAC-SHA-1 RFC 2403 - The Use of HMAC-MD5-96 within ESP and AH RFC 2404 - The Use of HMAC-SHA-1-96 within ESP and AH And of course rfc 2402 - AH Bye, Mipam. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message