Method and system for supply of data

摘要

A method and system for supply of data relating to a described entity 302 to a relying entity 304. The method includes generating a first digital certificate referred to as an empowerment certificate signed with an electronic signature by a first signing entity which may be the described entity. The empowerment certificate includes one or more attributes of the described entity 302. The empowerment certificate also includes an indication of data relating to the described entity 302 which is to be supplied and an indication of one or more sources 306 for the data to be supplied. The empowerment certificate also includes one or more attributes identifying one or more relying entities 304 to which the data is authorised to be supplied. The method also includes the relying entity 304 forwarding the empowerment certificate for processing and a source (306) supplying the data indicated in the empowerment certificate. The data relating to the described entity 302 may be supplied to the relying entity 304 by means of a second digital certificate referred to as a custom certificate. The custom certificate is signed with an electronic signature by a second signing entity, preferably the certificate authority 308.