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# (12) EUROPEAN PATENT SPECIFICATION 

(45) Date of publication and mention of the grant of the patent: 09.05.2012 Bulletin 2012/19 

(21) Application number: 03747178.6 

(22) Date of filing: 26.03.2003 

(51) Int Cl.: G06F21/20 (2006.01) 

(86) International application number: PCT/IB2003/001172 

(87) International publication number: WO 2003/091861 (06.11.2003 Gazette 2003/45) 

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# (11) EP 1 499 940 B1 

# (54) EFFICIENT BROWSER-BASED IDENTITY MANAGEMENT PROVIDING PERSONAL CONTROL AND ANONYMITY 

EFFIZIENTE BROWSER-GESTÜTZTE IDENTITÄTSVERWALTUNG FR PERSÖNLICHE KONTOLLE UND ANONYMITÄT 

SYSTEME DE GESTION EFFICACE DE L’IDENTITE AU MOYEN D’UN NAVIGATEUR, FOURNISSANT UN CONTROLE PERSONNEL ET L’ANONYMAT 

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(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR 

(30) Priority: 26.04.2002 EP 02009568 

(43) Date of publication of application: 26.01.2005 Bulletin 2005/04 

(73) Proprietor: International Business Machines Corporation Armonk, NY 10504 (US) 

(72) Inventors: 

• PFITZMANN, Birgit, M, CH-8833 Samstagern (CH) 

• WAIDNER, Michael CH-8804 AU (CH) 

(74) Representative: Meyer, Michael Josef IBM Research GmbH Zurich Research Laboratory Säumerstrasse 4 8803 Rüschlikon (CH) 

Note: Within nine months of the publication of the mention of the grant of the European patent in the European Patent Bulletin, any person may give notice to the European Patent Office of opposition to that patent, in accordance with the Implementing Regulations. Notice of opposition shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). 

(56) References cited: WO-A-01/18684 WO-A-99/56194 

• "Binding and Profiles for the OASIS Security Assertion Markup Language (SAML)" WWW.OASIS-OPEN.ORG, [Online] 15 February 2002 (2002-02-15), XP002271983 Retrieved from the Internet: <URL:http://www.oasis-open.org/ committees/ security/docs/draft-sstc-bindings- model-11 .pdf> [retrieved on 2004-03-01] 

• MARLENA ERDOS AND SCOTT CANTOR: "Shiboleth-Architecture DRAFT v04" HTTP:// SHIBBOLETH.INTERNET2.EDU, [Online] 21 November 2001 (2001-11-21), XP002271984 Retrieved from the Internet: <URL:http:// shibboleth.internet2.edu/docs/ draft-internet2- shibboleth-arch-v04.pdf> [retrieved on 2004-03-01] 

• KORMANN D P ET AL: "Risks of the Passport single signon protocol" COMPUTER NETWORKS, ELSEVIER SCIENCE PUBLISHERS B.V., AMSTERDAM, NL, vol. 33, no.1-6, June 2000 (2000-06), pages 51-58, XP004304758 ISSN: 1389-1286 

• NEUMAN B C ET AL: "KERBEROS: AN AUTHENTICATION SERVICE FOR COMPUTER NETWORKS" IEEE COMMUNICATIONS MAGAZINE, IEEE SERVICE CENTER. PISCATAWAY, N.J,US, vol. 32, no. 9, 1September 1994 (1994-09-01), pages 33-38, XP000476553 ISSN: 0163-6804 

