Bull Sas

Le Commissariat a L'energie Atomique Et Aux Energies Alternatives

Florent Chabaud

The invention relates to a computer implemented method for designing a firmware including writing the firmware version, and providing the firmware version with a version data identifying the firmware version. The method also includes providing the firmware version with a second data, called rollback data, the second data provided to be compared to the version data of other versions of the firmware, and authorizing, and indicating a limit for, older firmware versions to which the firmware may be downgraded. The invention further relates to a firmware obtained by such a method and a method for modifying the version of a firmware installed on a platform and designed by such a method.

Method for designing a firmware, firmware obtained by such a method and method for modifying such a firmware

A High Performance Computing (HPC) machine comprising several computing processors interconnected through at least one network, and at least one primary management unit, in a vicinity of at least one computing processor. The at least one primary management unit powers on the at least one processor. The at least one primary management unit (comprises a random data item generator, and a secure storage memory for storing a secret data item, common to all computing processors of the HPC machine, and used for authentication of each computing processor of the HPC machine for data exchange in the HPC machine.

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Paris, France

Florent Chabaud