Re: [ietf-dkim] I-D ACTION:draft-ietf-dkim-rfc4871bis-02.txt

2010-10-11 Thread Barry Leiba
On Mon, Oct 11, 2010 at 4:44 PM, Jim Fenton wrote: >  There's a Working Group Last Call in effect for -01.  Should we: > > - Continue to direct comments at -01 > - Comment on -02 instead > - or will the WGLC be restarted on the -02 draft? I think it's not necessary for us to restart, but reviews

Re: [ietf-dkim] detecting header mutations after signing

2010-10-11 Thread Bill.Oxley
50% of the spam we see is RFC compliant DKIM signed, DKIM isnt the issue in your example its the operator and how they determine reputation On Oct 11, 2010, at 9:23 PM, Hector Santos wrote: > Dave CROCKER wrote: >> >> On 10/11/2010 3:05 PM, Wietse Venema wrote: >>> If you believe that sending ma

Re: [ietf-dkim] detecting header mutations after signing

2010-10-11 Thread Hector Santos
Dave CROCKER wrote: > > On 10/11/2010 3:05 PM, Wietse Venema wrote: >> If you believe that sending mail with a valid bad guy signature is >> an interesting attack on DKIM, then that implies that you're willing >> to believe mail that is signed by arbitrary strangers. > > > Well... > > But it's

Re: [ietf-dkim] detecting header mutations after signing

2010-10-11 Thread Murray S. Kucherawy
> -Original Message- > From: ietf-dkim-boun...@mipassoc.org [mailto:ietf-dkim-boun...@mipassoc.org] > On Behalf Of Dave CROCKER > Sent: Monday, October 11, 2010 3:18 PM > To: ietf-dkim@mipassoc.org > Subject: Re: [ietf-dkim] detecting header mutations after signing > > It's not really an

Re: [ietf-dkim] detecting header mutations after signing

2010-10-11 Thread Douglas Otis
On 10/11/10 3:05 PM, Wietse Venema wrote: > Charles Lindsey: >>> When the bad guy sends mail with (multiple) forged headers, the >>> best they can get is that naive mail programs render their forged >>> header with an indication that THE BAD GUY'S DKIM SIGNATURE VERIFIED. >>> >>> Sending forged h

Re: [ietf-dkim] I-D Action:draft-ietf-dkim-implementation-report-03.txt

2010-10-11 Thread Stephen Farrell
On 11/10/10 22:35, Murray S. Kucherawy wrote: >> The same question on Working Group Last Call applies here as well. >> >> Abort, retry or ignore? :-) > > I guess it's up to the chairs. It hadn't occurred to me that this could > upset a WGLC. At this point I'd say that the changes are (I ho

Re: [ietf-dkim] detecting header mutations after signing

2010-10-11 Thread Dave CROCKER
On 10/11/2010 3:05 PM, Wietse Venema wrote: > If you believe that sending mail with a valid bad guy signature is > an interesting attack on DKIM, then that implies that you're willing > to believe mail that is signed by arbitrary strangers. Well... But it's not an attack on DKIM. It's not rea

Re: [ietf-dkim] detecting header mutations after signing

2010-10-11 Thread Wietse Venema
Charles Lindsey: > > When the bad guy sends mail with (multiple) forged headers, the > > best they can get is that naive mail programs render their forged > > header with an indication that THE BAD GUY'S DKIM SIGNATURE VERIFIED. > > > > Sending forged headers with bad guy's DKIM signatures is not a

Re: [ietf-dkim] I-D Action:draft-ietf-dkim-implementation-report-03.txt

2010-10-11 Thread Murray S. Kucherawy
> -Original Message- > From: ietf-dkim-boun...@mipassoc.org [mailto:ietf-dkim-boun...@mipassoc.org] > On Behalf Of Jim Fenton > Sent: Monday, October 11, 2010 1:46 PM > To: ietf-dkim@mipassoc.org > Subject: Re: [ietf-dkim] I-D > Action:draft-ietf-dkim-implementation-report-03.txt > > T

Re: [ietf-dkim] I-D ACTION:draft-ietf-dkim-rfc4871bis-02.txt

2010-10-11 Thread Dave CROCKER
On 10/11/2010 1:44 PM, Jim Fenton wrote: > - Continue to direct comments at -01 > - Comment on -02 instead > - or will the WGLC be restarted on the -02 draft? Just my personal opinion: The revision is based on LC comments so far. Since ultimately the working group has to agree on the docume

Re: [ietf-dkim] I-D Action:draft-ietf-dkim-implementation-report-03.txt

2010-10-11 Thread Jim Fenton
The same question on Working Group Last Call applies here as well. Abort, retry or ignore? :-) -Jim On 10/11/10 12:30 PM, internet-dra...@ietf.org wrote: > A New Internet-Draft is available from the on-line Internet-Drafts > directories. > This draft is a work item of the Domain Keys Identif

Re: [ietf-dkim] I-D ACTION:draft-ietf-dkim-rfc4871bis-02.txt

2010-10-11 Thread Jim Fenton
There's a Working Group Last Call in effect for -01. Should we: - Continue to direct comments at -01 - Comment on -02 instead - or will the WGLC be restarted on the -02 draft? -Jim On 10/11/10 10:47 AM, Dave CROCKER wrote: > >> Title: DomainKeys Identified Mail (DKIM) Signatures >

[ietf-dkim] More interesting data

2010-10-11 Thread Murray S. Kucherawy
Naturally, moments after posting an update to the implementation report, some other interesting data came to light. One of our project members decided to start watching the DNS for what queries were hitting his nameservers after turning up DNS signing. The result included queries for policy at

[ietf-dkim] I-D Action:draft-ietf-dkim-implementation-report-03.txt

2010-10-11 Thread Internet-Drafts
A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Domain Keys Identified Mail Working Group of the IETF. Title : RFC4871 Implementation Report Author(s) : M. Kucherawy Filename: draft-i

[ietf-dkim] I-D ACTION:draft-ietf-dkim-rfc4871bis-02.txt

2010-10-11 Thread Internet-Drafts
A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Domain Keys Identified Mail Working Group of the IETF. Title : DomainKeys Identified Mail (DKIM) Signatures Author(s) : D. Crocker, M. Kucherawy, T. Ha

Re: [ietf-dkim] THIS IS A MULTIPLE 5322.FROM MESSAGE

2010-10-11 Thread Murray S. Kucherawy
> -Original Message- > From: ietf-dkim-boun...@mipassoc.org [mailto:ietf-dkim-boun...@mipassoc.org] > On Behalf Of Ian Eiloart > Sent: Monday, October 11, 2010 2:36 AM > To: Charles Lindsey; DKIM > Subject: Re: [ietf-dkim] THIS IS A MULTIPLE 5322.FROM MESSAGE > > > But it IS a serious pro

Re: [ietf-dkim] detecting header mutations after signing

2010-10-11 Thread Wietse Venema
Charles Lindsey: > On Fri, 08 Oct 2010 18:25:40 +0100, Wietse Venema > wrote: > > > If I understand things correctly, the solution is already available > > in DKIM today. It involves signer configuration (sign for N+1 > > instances of each header that is covered by the signature) and > > requi

Re: [ietf-dkim] THIS IS A MULTIPLE 5322.FROM MESSAGE

2010-10-11 Thread Ian Eiloart
--On 8 October 2010 15:38:46 +0100 Charles Lindsey wrote: > On Thu, 07 Oct 2010 19:18:19 +0100, Michael Thomas wrote: > >> The larger issue here is would anybody rush out to close this MUST. >> I think that it is highly unlikely that anybody is going to care at this >> point. That goes for *a

Re: [ietf-dkim] detecting header mutations after signing

2010-10-11 Thread Charles Lindsey
On Fri, 08 Oct 2010 18:25:40 +0100, Wietse Venema wrote: > If I understand things correctly, the solution is already available > in DKIM today. It involves signer configuration (sign for N+1 > instances of each header that is covered by the signature) and > requires no change in protocol or se