Key selection method for cryptographic data processing
US10931444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2015 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Oct 9, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/30
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Some embodiments relate to a data processing method comprising selecting a key from a plurality of previously stored keys, depending on at least on predefined criterion relating to at least one current value of at least one given repository. Other embodiments relate to a reception method comprising receiving second data obtained by applying, to first obtained data, a first cryptographic function using a key selected from a plurality of previously stored keys, depending on at least one predefined criterion relating to a current value of at least one given repository and for obtaining the first data by applying, to the second received data, a second cryptographic function using a second key associated with the selected key. Further embodiments relate to a processing device and a reception device that respectively implement the processing method and the reception method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.