A file that has been encrypted using a symmetric key and that has a corresponding access control entry with the symmetric key encrypted using the public key of a public/private key pair can be accessed. An encrypted key cache is also accessed to determine whether an access control entry to symmetric...http://www.google.fr/patents/US20060026425?utm_source=gb-gplus-shareBrevet US20060026425 - Encrypted key cache
Numéro de demande: 11/206,556 Numéro de publication: US 2006/0026425 A1 Date de dépôt: 18 août 2005 Brevet délivré: US7886364 ( Date de délivrance 8 févr. 2011)