Secured data format for access control

Details Secured data format for access control Secured data format for access control

2002-02-12

2008-05-27

Sheikh, Ayaz (Department: 2131)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Packet header designating cryptographically protected data

C713S161000, C713S168000, C713S169000, C713S170000, C726S026000, C726S027000, C726S028000, C726S029000, C726S030000, C380S200000, C380S201000, C380S202000, C380S203000

Reexamination Certificate

active

07380120

ABSTRACT:
In a system for providing access control management to electronic data, techniques to secure the electronic data and keep the electronic data secured at all times are disclosed. According to one embodiment, a secured file or secured document includes two parts: an attachment, referred to as a header, and an encrypted document or data portion. The header includes security information that points to or includes the access rules and a file key. The access rules facilitate restrictive access to the secured document and essentially determine who/when/how/where the secured document can be accessed. The file key is used to encrypt/decrypt the encrypted data portion. Only those who have the proper access privileges are permitted to retrieve the file key to encrypt/decrypt the encrypted data portion.

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