Method and apparatus for replacing the operating system of a limited-resource portable data carrier
US9606810B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 2013 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Aug 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/033
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for replacing the operating software of a limited-resource portable data carrier at a terminal includes controlling the operation of the data carrier and executing at least one function provided by the data carrier. The terminal includes new operating software, a bootstrap loader for loading new operating software, and a terminal certificate providing authorization for transmitting a loading key. In authentication of the terminal, the terminal certificate is transmitted to the data carrier and verified there and a loading key is transmitted to the data carrier. The operation control of the data carrier changes over to the bootstrap loader which deletes the present operating software of the data carrier and transmits the new operating software using the loading key from the terminal. The new operating software is then verified and activated by the bootstrap loader which transfers the control of the data carrier to the new operating software.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.