- Can I trust a metadata on the Web?
- is the author the one who claims he/she is?
- can I check the credentials?
- can I trust the inference engine?
- what about IPR of the metadata?
- etc.
- Some of the basic building blocks are available:
- XML Signature/Encryption
- XML based Key Management is in preparation
- Much is missing, e.g.:
- a “canonical” form of RDF/XML
- necessary for unambiguous signatures
- exhaustive tests for inference engines
- protocols to check, for example, a signature
- It is on the “future” stack of W3C…