Hardware security module and processing method in such a module with augmented communication features
US8886997B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2011 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Dec 13, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/3636
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to the field of processing within hardware security modules, such as for example debugging of compiled programs. A debugging module includes a microprocessor and a compiled program to be executed by the microprocessor in order to carry out an operation, and is configured to exchange with an external entity, in a master/slave mode, messages relating to the operation. The compiled program includes at least one debugging instruction which whether or not it is executed does not modify the execution of the operation. The hardware security module is moreover configured to transmit, during the execution of the compiled program, data generated, for example by the debugging instruction, over a communication channel initiated by the hardware security module, to an entity external to the hardware security module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.