Method for securing an automated system
US10805079B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 18, 2018 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Nov 2, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/088
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for securing a system including a configuration subsystem and a production subsystem. The configuration subsystem is separate from the production subsystem that comprises a plurality of components, a gatekeeper and an entity secured with a first secret value. A generator hosted in the configuration subsystem selects a secret sharing scheme and generates, from an input parameter different from the first secret value, a set of secret shares using the secret sharing scheme. The generator uniquely assigns and securely sends a secret share extracted from the set to each of the components. The gatekeeper gets a subset of the secret shares from the components and constructs a second secret value from the subset using the secret sharing scheme. The gatekeeper computes the first secret value by applying a preset function to the second secret value, and then the gatekeeper unlocks access to the entity using the first secret value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.