Method and apparatus for securing digital assets

Details Method and apparatus for securing digital assets Method and apparatus for securing digital assets

2007-02-13

2007-02-13

Barrón, Jr., Gilberto (Department: 2132)

Electrical computers and digital processing systems: support

System access control based on user identification by...

Pin/password generator device

C713S165000, C713S166000, C713S167000

Reexamination Certificate

active

10159537

ABSTRACT:
Digital assets are in a secured form that only those with granted access rights can access. Even with the proper access privilege, when a secured file is classified, at least a security clearance key is needed to ensure those who have the right security clearance can ultimately access the contents in the classified secured file. According to one embodiment, a secured file or secured document includes two parts: a header, and an encrypted data portion. The header includes security information that points to or includes access rules, a protection key and a file key. The access rules facilitate restrictive access to the encrypted data portion and essentially determine who the secured document can be accessed. The file key is used to encrypt/decrypt the encrypted data portion and protected by the protection key. If the contents in the secured file are classified, the file key is jointly protected by the protection key as well as a security clearance key associated with a user attempting to access the secured file.

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patent: WO 0163387 (2001-08-01), None
patent: WO 0163387 (2001-08-01), None
patent: WO 0178285 (2001-10-01), None

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