1
Zubeldia Pedro, Romney Gordon: Digital certification system. Arcanvs, October 7, 1998: EP0869637-A2 (24 worldwide citation)

The present invention provides a digital certification system which allows a user to add information to a digital certificate without requiring the re-issuance of the digital certificate and the invalidating of all distributed copies of the previous certificate. The invention comprises a digital cer ...


2
Romney Gordon, Zubeldia Pedro: Method and apparatus for authenticating electronic documents. Arcanvs, August 19, 1998: EP0859488-A2 (13 worldwide citation)

The present invention consists of a method and apparatus for authenticating an electronic document. In one embodiment of the invention, a party wishing to digitally sign an electronic document (the "client") stores the unsigned electronic document, and the client's public and private keys, on transp ...


3
Zubeldia Pedro, Romney Gordon: Method and apparatus for managing key revocation. Arcanvs, October 7, 1998: EP0869636-A2 (7 worldwide citation)

The validity status of a digital certificate is accessible even after a certificate has expired. Certificate validity status is stored and retained in a certificate status history database that allows for ease of certificate status retrieval. The validity status of a certificate can be determined fo ...


4
Romney Gordon, Zubeldia Kepa: Anonymously linking a plurality of data records. Arcanvs, September 18, 2002: EP1240574-A2

A system for anonymously linking a plurality of data records, each datarecord comprising a plurality of elements for identifying an associated individual, includes a first identity reference encoding module configured tonecode a first encoded identity reference from a first subset of the identifying ...


5
Romney Gordon, Zubeldia Kepa: Systeme de mise en correspondance anonyme dune pluralite de fiches de donnees, Anonymously linking a plurality of data records. Romney Gordon, Romney Gordon, CASSAN MACLEAN, June 14, 2001: CA2393860

A system for anonymously linking a plurality of data records (52), each data record comprising a plurality of elements (56) for identifying an associated individual, includes a first identity reference encoding module (58A) configured to encode a first encoded identity reference from a first subset ...


6
Romney Gordon W, Zubeldia Kepa: Anonymously linking a plurality of data records. Arcanvs, CHRISTENSEN Kory D, June 14, 2001: WO/2001/042883

A system for anonymously linking a plurality of data records (52), each data record comprising a plurality of elements (56) for identifying an associated individual, includes a first identity reference encoding module (58A) configured to encode a first encoded identity reference from a first subset ...