Systems and methods for downloading code and data into a secure non-volatile memory
US9653004B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2008 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Jan 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for downloading information into a secure non-volatile memory of a secure embedded device (SED) during a manufacturing or personalization process. The method involves communicating the information and a software program from a device to a temporary storage memory of the SED. The method also involves starting the software program provided to facilitate an initialization of a first key and to facilitate a transfer of at least a portion of the information from the temporary storage memory to the secure non-volatile memory. In response to starting, the software program, the first key is initialized and the portion of information is transformed into transformed information locally at the SED using at least one of a scramble algorithm and a cipher algorithm. Thereafter, the transformed information is written to a memory element of the secure non-volatile memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.