- From: Pindar Wong <pindar.wong@gmail.com>
- Date: Sat, 13 Jun 2015 08:42:45 +0800
- To: Markus Sabadello <markus@projectdanube.org>
- Cc: W3C Credentials Community Group <public-credentials@w3.org>
- Message-ID: <CAM7BtUpjqKi_ZQq27wTm2_SZqK7WmJcNAD8vwvCHNTP7sZ1Rfw@mail.gmail.com>
Tks Markus... this is really helpful to hear the backstory. p. On Sat, Jun 13, 2015 at 6:13 AM, Markus Sabadello <markus@projectdanube.org> wrote: > Hey Adrian, > > I was one of the main contributors on Higgins for several years. > It was definitely similar to this group's work, since it was also about > gathering and then sharing credentials. > Credentials in Higgins were modeled as "cards", and there were > "self-issued" and "managed" cards. > Cards could be obtained and submitted to websites using client-side > "selector" software (browser plugins). > Those cards and credentials were limited to a key/value structure and > could not contain arbitrary RDF data. > > On the surface, Higgins was basically an open-source alternative to > Microsoft CardSpace and its InfoCards. > > But its real innovation was the underlying data model that you just > pointed to, based on RDF and OWL. > We had the concept of an abstract global graph of data, with data coming > from various different local and remote sources ("contexts"). > We had a collection of "context providers", i.e. libraries that could > access and map the various data sources, e.g. LDAP, Facebook, etc. > We also had a way to point at specific properties of specific resources > in a specific context with just a single identifier. > So e.g. to point to the e-mail attribute of my Facebook account, I would > only need a single global ID string, rather than a URI for my resource > and then a URI for a property, and maybe another URI for a named graph. > > And so on, there were more cool ideas, such as an early form of access > control for RDF graphs. > There were some high-profile PoCs, e.g. companies like Equifax issuing > cards with Higgins software. > Novell, IBM, Google, etc. were involved, we also worked with Idemix and > U-Prove, SAML2, OpenID, etc. early on. > > You ask why didn't it go any further. Not sure. The main company > (Parity, later Azigo) ran out of money. > And users simply didn't want to install and use the card selector > software, I guess that's the reason. > > Here is a presentation I gave about Higgins in 2008 if you're interested! > http://www.slideshare.net/peacekeeper/higgins-ese-presentation > > all the best, > Markus > > Am 6/4/2015 um 11:25 AM schrieb Adrian Hope-Bailie: > > I wonder if anyone knows anything about the Higgins project: > > http://www.eclipse.org/higgins/ > > > > It seems to have faded to nill many years ago despite having some > > promise and some high profile organisations as participants. > > > > I found their data model particularly interesting: > > http://wiki.eclipse.org/Persona_Data_Model_2.0 > > > > Adrian > > >
Received on Saturday, 13 June 2015 00:43:13 UTC