- From: Mo McRoberts <mo.mcroberts@bbc.co.uk>
- Date: Fri, 25 Nov 2011 10:53:09 +0000
- To: Mischa Tuffield <mischa@mmt.me.uk>
- Cc: Peter Williams <home_pw@msn.com>, "public-xg-webid@w3.org" <public-xg-webid@w3.org>
> Sure canonicalisation is not easy. But two people can independently sign different rdf documents, with bnodes and, verify the two are the same with sparql. The problem is not verifying that are the same, but verifying that they are not different. Consider: _:a ex:someProp _:b . _:a ex:otherProp _:c . _:b foaf:name "Foo" . _:c foaf:name "Bar" . Now swap ex:someProp and ex:otherProp over. Your graph could very well mean the opposite of what it did previously, but if you're not careful the signatures will still match. M. -- Mo McRoberts - Technical Lead - The Space, 0141 422 6036 (Internal: 01-26036) - PGP key CEBCF03E, Project Office: Room 7083, BBC Television Centre, London W12 7RJ
Received on Friday, 25 November 2011 10:53:46 UTC