U-Prove works with SAML, Liberty ID-WSF, and Windows CardSpace
Does it? I hope it will for all three, but as far as I know, U-Prove hasn't as yet been profiled or demonstrated to do so for any of them.
I imagine that Microsoft & Credentica discussed at great lengths the 3rd integration before the (RSA) private keys for contract signing came out, and will be spending a not insignificant amount of time going forward on the details (reconciling what appear to me to be 'topological incompatibilities').
As for the integration with SAML, dunno. For that with ID-WSF, double dunno.
A search is revealing, the phrase 'U-Prove works with SAML, Liberty ID-WSF, and Windows CardSpace' begins its life in a Credentica whitepaper, but, unconstrained by such a likely subjective origin, moves on from there - to occurrences in respected (and unaffiliated) blogs and news articles.
The phenomena (unquestioned repetition of an original unverified claim) reminds me of a Stephen Jay Gould essay called "The Case of the Creeping Fox Terrier Clone", in which he tracked the memeology of the 'about the size of a fox-terrier' descriptor for Hyracotherium/Eohippus, the earliest (and smallest) member of the horse family. Facts notwithstanding, (Eohippus was not the size of a fox-terrier), the descriptor persisted through countless high-school science books.
To clarify, I hope 'U-Prove works with SAML, Liberty ID-WSF, and Windows CardSpace'. I even believe it will eventually. But, at least currently, to say so is to make a claim, and should be treated as such, with a healthy dose of doubt (and for me personally, I always mix my doubt with cynicism).