- From: Sean B. Palmer <sean@miscoranda.com>
- Date: Wed, 9 Dec 2015 14:57:52 +0000
- To: Devdatta Akhawe <dev.akhawe@gmail.com>
- Cc: Mike West <mkwst@google.com>, Joel Weinberger <jww@google.com>, Francois Marier <francois@mozilla.com>, Frederik Braun <fbraun@mozilla.com>, "public-webappsec@w3.org" <public-webappsec@w3.org>
Thanks, I have done as you suggested: https://github.com/w3c/webappsec/issues/449#issuecomment-163279813 I'm happy to discuss this in either forum, here or on GitHub or both. On Wed, Dec 9, 2015 at 1:42 PM, Devdatta Akhawe <dev.akhawe@gmail.com> wrote: > Hey Sean > > Thanks for emailing! We are talking about this on > https://github.com/w3c/webappsec/issues/449 > > Maybe you can chime in with your thoughts? > > I think most valuable would be input on why cryptographic hashes aren't > sufficient for the use case you are interested in (downloads). And, why some > of the other solutions like nonce + hmac proposed in the issue don't work > either. This will help everyone understand the value of signatures. > > Cheers > Dev > > On Dec 9, 2015 1:01 AM, "Mike West" <mkwst@google.com> wrote: >> >> Hi Sean! >> >> Signature-based integrity is indeed something that I hope the SRI editors >> are thinking about. We discussed such a notion at our last face-to-face >> meeting, and I think there was general agreement that it was a good >> direction to explore (the notes at >> http://www.w3.org/2015/10/28-webappsec-minutes#item07 aren't wonderful, but >> you get the idea). >> >> CCing the editors of that document, as I expect them to have feedback for >> you. >> >> -mike >> >> -mike >> >> On Wed, Dec 9, 2015 at 9:56 AM, Sean B. Palmer <sean@miscoranda.com> >> wrote: >>> >>> Yesterday I published an Internet-Draft for discussion which proposes >>> a method for associating web resources with cryptographic digital >>> signatures: >>> >>> https://www.ietf.org/id/draft-palmer-signature-link-relation-00.txt >>> >>> Michael Smith directed me to this group as working on a relevant >>> technology, Subresource Integrity. I would like to suggest two things: >>> >>> * That the "integrity" attribute should come with a counterpart link >>> relation for use in the "Link" HTTP header and "rel" HTML attribute. >>> * That the "signature" link relation and some signature counterpart to >>> "integrity" may have a place in your Subresource Integrity work. >>> >>> I understand that the work is advanced, being at the CR phase within >>> the W3C. But I would not like to produce a solution to the problem of >>> signature verification in complete independence from your work, and I >>> therefore solicit your feedback. >>> >>> -- >>> Sean B. Palmer >>> >> > -- Sean B. Palmer, http://inamidst.com/sbp/
Received on Wednesday, 9 December 2015 14:58:25 UTC