[Ietf-dkim] not removing signatures

2022-12-06 Thread Michael Thomas
Murray wrote: Post-delivery survival of the signature is not only not a goal, it is arguably (or possibly demonstrably) a problem. Can we say more about this if we're going to take that position? A naked "not a goal" doesn't jive with RFC 4686, which explicitly says it is a goal, or at leas

[Ietf-dkim] Problem Statement

2022-12-06 Thread Michael Thomas
I think that any charter should specifically call out the need for a problem statement. The problem is far more nuanced than the few lines in the proposed charter and I think that the charter should be neutral about whether the problem can be solved because that isn't clear at all. Doing someth

Re: [Ietf-dkim] not removing signatures

2022-12-06 Thread mikespecter
I very much disagree with everything the above poster said. Deniability is a default property of all e2ee messaging apps; it’s both surprising and disheartening that email — a largely unencrypted medium — fails to provide deniability for its users. If we said that signal was behaving this way,

Re: [Ietf-dkim] not removing signatures

2022-12-06 Thread Michael Thomas
On 12/6/22 2:05 PM, mikespec...@gmail.com wrote: I very much disagree with everything the above poster said. Deniability is a default property of all e2ee messaging apps; it’s both surprising and disheartening that email — a largely unencrypted medium — fails to provide deniability for its us

Re: [Ietf-dkim] not removing signatures

2022-12-06 Thread Jon Callas
> On Dec 6, 2022, at 14:23, Michael Thomas wrote: > > > On 12/6/22 2:05 PM, mikespec...@gmail.com wrote: >> I very much disagree with everything the above poster said. >> >> Deniability is a default property of all e2ee messaging apps; it’s both >> surprising and disheartening that email — a

Re: [Ietf-dkim] not removing signatures

2022-12-06 Thread Michael Thomas
On 12/6/22 2:33 PM, Jon Callas wrote: On Dec 6, 2022, at 14:23, Michael Thomas wrote: On 12/6/22 2:05 PM, mikespec...@gmail.com wrote: I very much disagree with everything the above poster said. Deniability is a default property of all e2ee messaging apps; it’s both surprising and dishea

Re: [Ietf-dkim] not removing signatures

2022-12-06 Thread mikespecter
> That's not true in all cases. Spam and phishing slips through filters, etc, > regularly and doing forensics may happen well past delivery windows. Part of > DKIM is a "blame me" mechanism. If you remove the signature how do they know > they are actually responsible? Perhaps the domain can kee

Re: [Ietf-dkim] not removing signatures

2022-12-06 Thread Michael Thomas
On 12/6/22 3:22 PM, mikespec...@gmail.com wrote: That's not true in all cases. Spam and phishing slips through filters, etc, regularly and doing forensics may happen well past delivery windows. Part of DKIM is a "blame me" mechanism. If you remove the signature how do they know they are actual

Re: [Ietf-dkim] Rechartering

2022-12-06 Thread Dave Crocker
On 12/4/2022 7:52 PM, Murray S. Kucherawy wrote: On Sat, Dec 3, 2022 at 12:20 PM Jon Callas wrote: > On Dec 3, 2022, at 11:42, Dave Crocker wrote: > On 12/3/2022 11:35 AM, Jon Callas wrote: >> Agreed, and we need some other weasel word than "lightweight" because there are lots