Energy harvesting cryptosystem
US9979548B2 · kind B2 · utility
0Cited by
2References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2016 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Nov 22, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method of low-power cryptography is disclosed involving a computing device with an audio jack that communicates with a token plugged into the audio jack. Data is passed between the computing device and token over audio channels; power for all functions necessary for the token to operate as disclosed is also supplied by the computing device to the token over an audio channel. The token may be used as an identity and authentication security factor, for secure external key exchange, or direct encryption of small payloads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.