- From: Adam Sobieski <adamsobieski@hotmail.com>
- Date: Wed, 23 Aug 2017 12:19:18 +0000
- To: David Chadwick <D.W.Chadwick@kent.ac.uk>, "public-credentials@w3.org" <public-credentials@w3.org>
- Message-ID: <BN6PR01MB32667AE7CCB878439958588BC5850@BN6PR01MB3266.prod.exchangelabs.com>
David, Thanks. I saw an attribute predicate in an animation (I thought is was a derived attribute); I'm reading about attributes and predicates. For the example, it might make sense for an issuer to issue electoral districts onto a credential, if we desire the capability for anonymous feedback to elected officials and if the elected officials desire to know that a feedback-provider is from an electoral district. Best regards, Adam From: David Chadwick<mailto:D.W.Chadwick@kent.ac.uk> Sent: Wednesday, August 23, 2017 5:43 AM To: public-credentials@w3.org<mailto:public-credentials@w3.org> Hi Adam since credentials are signed by issuers, then I do not believe a repository can implement a derived attribute, as a repository is not usually a trusted issuer. I suggest the issuer will issue this if requested to by the subject. regards David On 22/08/2017 21:51, Adam Sobieski wrote: > Credentials Community Group, > > I would like to ask about /derived attributes/ (e.g. over 21 which is > derived from birthdate and the current date), about how they are > implemented by credential repositories towards understanding whether > more complex derived attributes such as electoral districts might be > possible. > > Electoral districts (https://en.wikipedia.org/wiki/Electoral_district) > are dynamic regions. A digital wallet might inquire to a remote service > about how an address or location maps to an electoral district (e.g. > https://developers.google.com/civic-information/) > > Cities, states and electoral districts could be useful for government > feedback forms, recording audio messages for or writing letters to > Congresspeople via websites. > > > Best regards, > Adam Sobieski
Received on Wednesday, 23 August 2017 12:19:42 UTC