Apparatus and method for multi-state code signing
US9843451B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2014 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Feb 1, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/1011
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An electronic device includes a memory configured to store a lab certificate, a code authentication certificate and the executable code. The electronic device also includes a processor associated with a unique device identifier. For a first operational condition of the plurality of operational conditions, the processor is configured to: retrieve the code authentication certificate associated with the executable code; determine that a valid lab certificate is present in the memory; authenticate the code authentication certificate by determining that the code authentication certificate is signed with a private developer key and that the signature is valid; and execute the executable code on the electronic device responsive to determining that the lab certificate is valid and authenticating the code authentication certificate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.