Patent ID: 7769690

Claim:
A method for supply of data relating to a described entity to a relying entity, the method comprising: generating, using a computer device, a first digital certificate signed with an electronic signature by a first signing entity and including: one or more attributes of the described entity; one or more attributes identifying the first signing entity; an indication of data relating to the described entity which is to be supplied; an indication of one or more sources for the data to be supplied; and one or more attributes identifying one or more relying entities to which the data is to be supplied; the relying entity forwarding the first digital certificate for processing; and after the processing, the one or more sources supplying the data indicated in the first digital certificate to the relying entity, wherein some or all of the data relating to the described entity is supplied by a second digital certificate to the relying entity, the second digital certificate signed with an electronic signature by a second signing entity and including: one or more attributes of the described entity including the data which is to be supplied; one or more attributes of the second digital 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, and wherein the first digital certificate authorizes the relying entity to use the first digital certificate to obtain the second digital certificate.