Method and device for archiving a document
US9355274B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2010 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Oct 25, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2151
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The method for archiving a document includes a step of encryption of the document with a symmetric key, a step of transmission of said encrypted document to an archiving operator, and a step of transmission of the symmetric encryption key of said document to an escrow operator distinct from the archiving operator. The method may also include a step of encrypting of the symmetric key with a key consisting of a dual key comprising asymmetric keys. Depending on whether it is applied to personal archiving or to document transmission, during the step of encryption with the asymmetric key, the asymmetric key is that of the user having transmitted said document or that of the recipient of the document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.