Apparatus and method for providing a public key for authenticating an integrated circuit
US9813392B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2015 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Mar 21, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0876
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method for providing a public key for authenticating an integrated circuit. In the method, the integrated circuit obtains a hardware key and an integrated circuit identifier. The integrated circuit generates a derived key based on the hardware key using a key derivation function (KDF) shared with a manufacturing machine. The integrated circuit generates a private key and a corresponding public key using the derived key as an input to a deterministic function. The integrated circuit then provides the public key and the integrated circuit identifier to a partner service for authentication of the integrated circuit using an anonymized credential database to be provided to the partner service by a manufacturer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.