Secured data format for access control
US7380120B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2002 |
| Grant date | May 27, 2008 |
| Priority date | — |
| Expiry date | Feb 24, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/102
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.