Systems and methods for controlling electronic document use
US8611544B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2011 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Apr 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One exemplary embodiment involves receiving, at a server, a request for a document key for accessing a document on a client device, wherein the request comprises an identity of an access policy and information about the document. The exemplary method further comprises determining, at the server, whether access to the document is permitted according to the access policy. If access to the document is permitted, the exemplary method involves computing, at the server, the document key using the information about the document, wherein the document key is document specific, wherein, prior to the computing of the document key, the document key is not stored for access by the server. The exemplary method further involves responding to the request by providing the document key for use in accessing the document on the client device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.