Re: [ietf-dkim] DKIM SSP: Security vulnerability when SSP record doesnot exist?

2005-08-25 Thread Arvel Hathcock
SSP is in the draft charter. I have not noticed anyone suggesting that the charter be changed. I'm very much in favor of keeping DKIM-SSP in the draft charter. -- Arvel ___ ietf-dkim mailing list http://dkim.org

Re: [ietf-dkim] DKIM SSP: Security vulnerability when SSP record doesnot exist?

2005-08-22 Thread Arvel Hathcock
The problem of rfc2822.From spoofing is involves some complex human issues and we do not have much track record solving them. I don't see what "complex human issues" are involved in the simple wish as a domain owner to make known whether use of that domain in a sender identity field requires a s

Re: [ietf-dkim] DKIM SSP: Security vulnerability when SSP record doesnot exist?

2005-08-22 Thread Tony Finch
> > The problem of rfc2822.From spoofing is involves some complex human > > issues and we do not have much track record solving them. > > I don't see what "complex human issues" are involved in the simple wish > as a domain owner to make known whether use of that domain in a sender > identity field

Re: [ietf-dkim] DKIM SSP: Security vulnerability when SSP record doesnot exist?

2005-08-22 Thread Arvel Hathcock
The problem of rfc2822.From spoofing is involves some complex human issues and we do not have much track record solving them. I don't see what "complex human issues" are involved in the simple wish as a domain owner to make known whether use of that domain in a sender identity field requires a

Re: [ietf-dkim] DKIM SSP: Security vulnerability when SSP record doesnot exist?

2005-08-20 Thread Dave Crocker
> > It's not that the tie-in does not provide incremental benefit. It is that > > it is incremental, rather than fundamental. > > This is precisely the debate - whether the benefit of DKIM SSP is > incremental or fundamental. It largely depends on what your view is of the > problem DKIM is at

Re: [ietf-dkim] DKIM SSP: Security vulnerability when SSP record doesnot exist?

2005-08-20 Thread Arvel Hathcock
That nicely summarizes the problem I have with the fixation of *requiring* a tie-in to the origination domain. I've seen no evidence that such a fixation actually exists on this list so you shouldn't have anything to worry with on this point. It's not that the tie-in does not provide increme

Re: [ietf-dkim] DKIM SSP: Security vulnerability when SSP record doesnot exist?

2005-08-10 Thread Dave Crocker
On Wed, 10 Aug 2005 09:53:37 -0500, Arvel Hathcock wrote: > Suppose you get an unsigned message and DNS lookups fail for whatever > transient reason. It is probably worth our considering how well or poorly DKIM works under different modes of connectivity. Some models require all participants

Re: [ietf-dkim] DKIM SSP: Security vulnerability when SSP record doesnot exist?

2005-08-10 Thread Earl Hood
On August 10, 2005 at 09:53, "Arvel Hathcock" wrote: > What about DNS connectivity problems which do come up from time to time? Then you will probably have other problems besides looking up SSP records. > Suppose you get an unsigned message and DNS lookups fail for whatever > transient reason.

Re: [ietf-dkim] DKIM SSP: Security vulnerability when SSP record doesnot exist?

2005-08-10 Thread Arvel Hathcock
S was messed up. -- Arvel - Original Message - From: "Earl Hood" <[EMAIL PROTECTED]> To: Sent: Tuesday, August 09, 2005 7:18 PM Subject: [ietf-dkim] DKIM SSP: Security vulnerability when SSP record doesnot exist? In the DKIM SSP draft, the following is stated: