Foreword by Peter Cochrane.; Part I: Introduction; Part II Identity Technologies: Smart cards, smart identities; Case study: Estonian electronic identity cards; A roadmap for biometrics; Case study: UK visas; Identity directories and databases; Common sense PKI; Radio-frequency identification; Case study: Manchester City Football Club; Practical action: Federation and mobility; Case study: Hong Kong's Smartics.; Part III Identity in Business and Government: A model for digital identity; Large scale identity management; Two-factor authentication; The private life of things; Authentication in business; Identity services as an infrastructure; The US-Visit Program; Building privacy-friendly RFID; Case study: A sample code of conduct.; Part IV Digital Identity in Context: The ID problem; Planning ID management in government; ID and the law; This is not your father's ID card; Eavesdropping on the future of identity; Cyborg identity.; Part V: Digital identity management implications. Index.