- From: Adrian Gropper <agropper@healthurl.com>
- Date: Sat, 27 Mar 2021 19:28:32 -0400
- To: Alan Karp <alanhkarp@gmail.com>
- Cc: Manu Sporny <msporny@digitalbazaar.com>, "W3C Credentials CG (Public List)" <public-credentials@w3.org>
- Message-ID: <CANYRo8i77m6_mQ8Rn6veSbxOjK01OrxggbLLCprnv0n4p4AM7g@mail.gmail.com>
I think I understand canonicalization but I would appreciate a plain language <https://www.explainxkcd.com/wiki/index.php?title=1133:_Up_Goer_Five> explanation of what Manu and Alan are talking about. Ideally, there would be a use-case to illustrate the utility. Adrian On Sat, Mar 27, 2021 at 6:01 PM Alan Karp <alanhkarp@gmail.com> wrote: > Feel free to lift any sections you like. As far as digital signatures > goes, I don't recall. It might simply be that we assumed people knew you > could sign once you had the digest. > > -------------- > Alan Karp > > > On Sat, Mar 27, 2021 at 12:43 PM Manu Sporny <msporny@digitalbazaar.com> > wrote: > >> On 3/27/21 3:01 PM, Alan Karp wrote: >> > Yeah. I'm still trying to figure out what I'm going to be when I grow >> up. >> >> *lol*, aren't we all! :P >> >> > One issue you didn't mention about our paper is that a set hash is >> weaker >> > against collision attacks. I thought that might be the reason you >> couldn't >> > use that approach. >> >> Well, yes... I wanted to say something about that, but could also see how >> you >> could *maybe* mitigate that using large enough hashes and/or Section >> 6.2.2 -- >> making the combining function be multiplication mod some suitably-large >> prime >> number. This was the part of the paper that interested me the most, >> Alan... I >> could see how that would work IF we didn't have to depend on a >> pre-determined >> set of node labels. >> >> There are performance improvements that we know are probably still locked >> up >> in the algorithm, but we needed to ship something (nine years ago) and we >> really haven't seen a case where performance was an issue. >> >> > In case you're interested, we wrote a follow-up, >> > https://www.hpl.hp.com/techreports/2004/HPL-2004-95.pdf >> >> Would you mind it if we unceremoniously lift applicable parts of "Section >> 5: >> Application for Graph Digests" from that document for the use cases >> document? >> Any reason you didn't include digital signatures in the applications >> section? >> >> -- manu >> >> -- >> Manu Sporny - https://www.linkedin.com/in/manusporny/ >> Founder/CEO - Digital Bazaar, Inc. >> blog: Veres One Decentralized Identifier Blockchain Launches >> https://tinyurl.com/veres-one-launches >> >>
Received on Saturday, 27 March 2021 23:28:56 UTC