- From: Olivier Berger <olivier.berger@telecom-sudparis.eu>
- Date: Tue, 27 Aug 2013 17:13:50 +0200
- To: public-webid@w3.org
Hi. I've been discussing web of trust with Andrei and others, in the context of the Debian project, which already relies a lot on the GPG/OpenPGP web of trust. So I've been wondering how to add a WebID pointer in a pubkey. However, there doesn't seem to be some easily manageable way to add RDF to a key (or at least I didn't discover it)... and I thought that a QR code as a photo ID in the pubkey could be something to test out. So I've played a bit with the script below, and produced a QR code JPEG that I added to my key. See my pubkey at [0]. Once decoded, it provides with a basic triple : <> <http://xmlns.com/wot/0.1/identity> <http://www-public.telecom-sudparis.eu/~berger_o/foaf.rdf#me> Maybe there would be a better way to encode this... or another ontology ? In reverse, my WebID points to the pubkey. The script : webid=http://www-public.telecom-sudparis.eu/~berger_o/foaf.rdf#me echo '<> <http://xmlns.com/wot/0.1/identity> <'$webid'>' | qrencode -t EPS -o webid.eps #convert -verbose -monochrome -define jpeg:extent=1kb -strip -set comment "WebID link as RDF" webid.eps webid.jpg convert -monochrome -quality "5%" -strip -set comment "WebID link as RDF" webid.eps webid.jpg Note that using 5% quality seemed to allow the qr code to be decoded by zbarimg, while producing a JPEG image small enough for GPG to add it without complaining on the file size. YMMV. Would this be an interesting step to promote WebID, by taking adventage of the existing GPG web of trust ? What do you think. Best regards, [0] http://www-public.it-sudparis.eu/~berger_o/info/pubkey/pubkey.txt -- Olivier BERGER http://www-public.telecom-sudparis.eu/~berger_o/ - OpenPGP-Id: 2048R/5819D7E8 Ingenieur Recherche - Dept INF Institut Mines-Telecom, Telecom SudParis, Evry (France)
Received on Tuesday, 27 August 2013 15:14:22 UTC