Method and apparatus for secure private key storage on IoT device
US11258602B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2020 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Sep 14, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/65
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus is disclosed for storing a private key on an IoT device for encrypted communication with an external user device and includes a proximity-based communication interface, encryption circuitry and IoT functional circuitry. The encryption circuitry includes a memory having a dedicated memory location allocated for storage of encryption keys utilized in the encrypting/decrypting operations, an encryption engine for performing the encryption/decryption operation with at least one of the stored encryption keys in association with the operation of the IoT functional circuitry, an input/output interface for interfacing with the proximity-based communication interface to allow information to be exchanged with a user device in a dedicated private key transfer operation, an internal system interface for interfacing with the IoT functional circuitry for transfer of information therebetween, memory control circuitry for controlling storage of a received private key from the input/output interface for storage in the dedicated memory location in the memory, in a Write-only memory storage operation relative to the private key received from the input/output interface over the proximity-…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.