Information security architecture for encrypting documents for remote access while maintaining access control
US6978376B2 · kind B2 · utility
116Cited by
31References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2000 |
| Grant date | Dec 20, 2005 |
| Priority date | — |
| Expiry date | Mar 31, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of controlling distribution of a segment of encrypted electronic information is presented. A key server receives a protected copy of a decryption key for the segment. The segment is retrieved at a user location. The protected copy of the decryption key is accessed. In response to the accessing, the segment is decrypted using the accessed copy of the decryption key at the user location. The accessed copy of the decryption key is destroyed at the user location in response to the decrypting. The decrypted segment is displayed in response to the decrypting. The decrypted segment is destroyed in response to the displaying.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.