Method and system for the supply of data, transactions and electronic voting

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. The empowerment certificate includes one or more attributes of the described entity (302) and one or more attributes of the empowerment certificate including one or more attributes identifying the first signing entity. 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. Some or all of 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. The custom certificate includes one or more attributes of the described entity (302) including the data which is to be supplied, one or more attributes of the custom certificate which include one or more attributes identifying the second signing entity, and one or more attributes identifying one or more relying entities to which the data is to be supplied. Custom certificates may appear in custom certificate revocation lists. A system and method for transfer of ownership of electronic property (801) from a first entity to a second entity are also provided. A method and system for electronic voting are also provided.