Source: http://www.google.de/patents/US7921450?hl=de
Timestamp: 2013-05-19 18:26:54
Document Index: 366030108

Matched Legal Cases: ['art 1', 'art 2', 'art 1', 'art 1', 'Application No. 02258532', 'Application No. 02258532', 'Application No. 02258532']

Patent US7921450 - Security system using indirect key generation from access rules and methods ... - Google PatenteSuche Bilder Maps Play YouTube News Gmail Drive Mehr » Erweiterte Patentsuche | Webprotokoll | Anmelden Erweiterte Patentsuche PatenteImproved system and approaches for centralized storage of access restrictions which are associated with public keys are disclosed. The access restrictions serve to limit access to files secured by a security system. According to one aspect of the present invention, identifiers, or encoded versions thereof,...http://www.google.de/patents/US7921450?utm_source=gb-gplus-sharePatent US7921450 - Security system using indirect key generation from access rules and methods therefor Ver�ffentlichungsnummerUS7921450 B1PublikationstypErteilung Anmeldenummer10/295,363 Ver�ffentlichungsdatum5. Apr. 2011Eingetragen15. Nov. 2002 Priorit�tsdatum12. Dez. 2001 ErfinderHal S. HildebrandKlimenty VainsteinUrspr�nglich Bevollm�chtigterHildebrand Hal SVainstein Klimenty US-Klassifikation726/1726/2713/189380/285Internationale KlassifikationG06F17/00 UnternehmensklassifikationH04L63/102H04L63/105G06F21/6209G06F2221/2107G06F2221/2117H04L63/0428H04L63/06G06F2221/2141 Europ�ische KlassifikationG06F21/62AH04L63/10DH04L63/06H04L63/04BReferenzenPatentzitate (123)Nichtpatentzitate (83) Referenziert von (2)Externe LinksUSPTO USPTO-Zuordnung EspacenetSecurity system using indirect key generation from access rules and methods thereforUS 7921450 B1 Zusammenfassung Improved system and approaches for centralized storage of access restrictions which are associated with public keys are disclosed. The access restrictions serve to limit access to files secured by a security system. According to one aspect of the present invention, identifiers, or encoded versions thereof, are used as public keys to identify particular access restrictions. The identifiers to the access restrictions are used in a decentralized manner for public keys, while the access restrictions themselves are maintained in a centralized manner. As compared to the access restrictions, the public keys based on identifiers tend to be smaller and more uniform in size. The centralized storage of the access restrictions also facilitates subsequent changes to access restrictions for previously secured files. The improved system and approaches is particularly suitable in an enterprise environment.
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