What happened to the negotiation and data-transfer protocol?
The negotiation was removed from the P3P 1.0 Specification. The P3P-Specification Working-Group felt, that the protocol for negotiation and data-transfer is far to complex to implement and would hinder a first rapid and widespread implementation and deployment of P3P-Technology. At the time of the decision, there was not that much interest from the industry to implement the data-transfer mechanism. The favor was given to electronic wallets and there was no initiative to standardize this kind of application. Also, there was a lot of critique in the US about the data-transfer-protocol and negotiation while in Europe, the Data Commissioners still want to see negotiation in P3P. The Specification-Group therefor decided to postpone the further work on negotiation and data-transfer to a future version of P3P. See the also the page from Daniel La Liberte on the removal of data-transfer.
