Encryption of data to be stored in an information processing system
US8024582B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2001 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | May 23, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2131
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The aim of the invention is to provide a means of encrypting company-related data which also ensures that the data can be reproduced if the key is lost. To this end, the invention provides a method or an information processing system in which a key for a symmetrical encryption method is allocated to a user (4) for encrypting the data. Allocation information associating the key with the predetermined data to be encrypted and/or the user (4) is stored and can only be accessed by an authorised third party. If necessary, the key used for the particular data can be determined and the encrypted data reproduced, i.e. rendered readable, by this authorized third party. The allocation information, associating a particular key with an element identifying the predetermined data or a user identifier, can be stored in the information processing system in a predetermined manner or be created following a request for the allocation of a key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.