Secure key sharing between a sensor and a computing platform using symmetric key cryptography
US10819507B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 2017 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Aug 30, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Technologies disclosed herein provide an apparatus comprising a sensor including a first processor configured to execute first instructions to identify, based on an index, a first encrypted key of a first set of encrypted keys, identify, based on the index, a second encrypted key of a second set of encrypted keys, and extract a first trusted symmetric key from the first encrypted key using a first decryption algorithm and a first decryption key. The apparatus further comprises a computing platform coupled to the sensor and including a memory element and a processor configured to execute second instructions stored in the memory element to receive the second encrypted key from the sensor and extract a second trusted symmetric key from the second encrypted key using a second decryption algorithm and a second decryption key, where the first trusted symmetric key matches the second trusted symmetric key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.