[Mailman-Developers] OpenPGP Mailman integration discussion [was: Re: GSoc - Requirement from Mentor to complete the project]

2013-05-09 Thread Daniel Kahn Gillmor
As i about this, i wonder if the OpenPGP integration project shouldn't be broken into two phases, so that the tricky nuances could be handled more simply. I'm imagining a first phase ("message authentication") would not expect or handle encrypted messages, but would just use cryptographic signatur

Re: [Mailman-Developers] OpenPGP Mailman integration discussion [was: Re: GSoc - Requirement from Mentor to complete the project]

2013-05-09 Thread Terri Oda
On 13-05-09 11:17 AM, Daniel Kahn Gillmor wrote: I'm imagining a first phase ("message authentication") would not expect or handle encrypted messages, but would just use cryptographic signatures to verify the authenticity of origin of the incoming message, enhancing (and/or replacing) some of th

Re: [Mailman-Developers] OpenPGP Mailman integration discussion [was: Re: GSoc - Requirement from Mentor to complete the project]

2013-05-11 Thread Abhilash Raj
On Thu, May 9, 2013 at 10:47 PM, Daniel Kahn Gillmor wrote: > As i about this, i wonder if the OpenPGP integration project shouldn't > be broken into two phases, so that the tricky nuances could be handled > more simply. > > I'm imagining a first phase ("message authentication") would not expect >

Re: [Mailman-Developers] OpenPGP Mailman integration discussion [was: Re: GSoc - Requirement from Mentor to complete the project]

2013-05-16 Thread Daniel Kahn Gillmor
On 05/11/2013 03:17 AM, Abhilash Raj wrote: > After the Barry's comment on my proposal I decided to cut down the > proposal to implement use of OpenPGP signatures for posting > privileges instead of both signed and encrypted list. > Most of the infrastructure for encrypted list will be created al

Re: [Mailman-Developers] OpenPGP Mailman integration discussion [was: Re: GSoc - Requirement from Mentor to complete the project]

2013-05-23 Thread Abhilash Raj
On Friday 17 May 2013 05:16 AM, Daniel Kahn Gillmor wrote: > On 05/11/2013 03:17 AM, Abhilash Raj wrote: > >> After the Barry's comment on my proposal I decided to cut down >> the proposal to implement use of OpenPGP signatures for posting >> privileges instead of both signed and encrypted list.

Re: [Mailman-Developers] OpenPGP Mailman integration discussion [was: Re: GSoc - Requirement from Mentor to complete the project]

2013-05-23 Thread Daniel Kahn Gillmor
On 05/23/2013 12:06 PM, Abhilash Raj wrote: > For the encrypted lists yes, the key will be marked as 'encryption > capable'. The list owner has to upload the public-private keypair for > the list. > >> [dkg wrote:] >> ***SIGNED_POSTS*** >> >> Might there be a reason for the list to have a keypair

Re: [Mailman-Developers] OpenPGP Mailman integration discussion [was: Re: GSoc - Requirement from Mentor to complete the project]

2013-05-23 Thread Stephen J. Turnbull
Daniel Kahn Gillmor writes: > Is implementing this option something that would be part of the first > phase of the work, or should it be part of a later phase? He can implement it whenever he wants :-), but if I were his GSoC mentor, he'd be getting paid for something else (ie, the pure authent

Re: [Mailman-Developers] OpenPGP Mailman integration discussion [was: Re: GSoc - Requirement from Mentor to complete the project]

2013-05-23 Thread Joost van Baal-Ilić
Hi! On Thu, May 23, 2013 at 02:26:46PM -0400, Daniel Kahn Gillmor wrote: > On 05/23/2013 12:06 PM, Abhilash Raj wrote: > > My doubt is that how do we actually decide what is the best policy for > > us to follow? One person may agree to my point, other may not, third > > may have a different point

Re: [Mailman-Developers] OpenPGP Mailman integration discussion [was: Re: GSoc - Requirement from Mentor to complete the project]

2013-05-24 Thread Abhilash Raj
On Thursday 23 May 2013 11:56 PM, Daniel Kahn Gillmor wrote: > On 05/23/2013 12:06 PM, Abhilash Raj wrote: > >> For the encrypted lists yes, the key will be marked as >> 'encryption capable'. The list owner has to upload the >> public-private keypair for the list. >> >>> [dkg wrote:] ***SIGNED_PO

Re: [Mailman-Developers] OpenPGP Mailman integration discussion [was: Re: GSoc - Requirement from Mentor to complete the project]

2013-05-24 Thread Abhilash Raj
On Friday 24 May 2013 11:24 AM, Stephen J. Turnbull wrote: > I don't recall for sure but I don't think so. I tend to think it's > too much effort. We do worry about routing cycles and handle that > with X-Been-Seen fields. Message-IDs themselves are not very useful; > in my own experience repea

Re: [Mailman-Developers] OpenPGP Mailman integration discussion [was: Re: GSoc - Requirement from Mentor to complete the project]

2013-05-24 Thread Abhilash Raj
On Friday 24 May 2013 12:03 PM, Joost van Baal-Ilić wrote: > I've just typesetted > http://non-gnu.uvt.nl/pub/mailman/mailman-2.1.15-with-pgp-smime_2012-08-28-patch/pgp-smime/audit.pdf > and > http://non-gnu.uvt.nl/pub/mailman/mailman-2.1.15-with-pgp-smime_2012-08-28-patch/pgp-smime/audit2/audit2.

Re: [Mailman-Developers] OpenPGP Mailman integration discussion [was: Re: GSoc - Requirement from Mentor to complete the project]

2013-05-26 Thread Stephen J. Turnbull
Abhilash Raj writes: > This part is little difficult to ponder on. Suppose a user signs up > for a list. He creates a user account and subscribes to a particular > list which needs his pub-key and implements signing. In Mailman 3, users and subscriptions are separate concepts. We should assum

Re: [Mailman-Developers] OpenPGP Mailman integration discussion [was: Re: GSoc - Requirement from Mentor to complete the project]

2013-05-28 Thread Daniel Kahn Gillmor
On 05/26/2013 12:57 PM, Stephen J. Turnbull wrote: > > > sure, but the From: header is forgeable, right? so if Alice knows > > > that Bob was subscribed to list X in the past, and is subscribed to > > > list Y today, then she could dig up his old posts in list X, and > > > forward them (From:

Re: [Mailman-Developers] OpenPGP Mailman integration discussion [was: Re: GSoc - Requirement from Mentor to complete the project]

2013-05-28 Thread Stephen J. Turnbull
Daniel Kahn Gillmor writes: > The only way that a DKIM check would fail for the given attack, would be > if the DKIM included the To: and Cc: headers and the list was configured > to reject mail that either (a) failed or did not have a DKIM signature, > or (b) did not include the list's addres