Authentication device, system and method
US12113901B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 24, 2020 |
| Grant date | Oct 8, 2024 |
| Priority date | — |
| Expiry date | May 26, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention relates to secure transmission and reception of electronic messages using an authentication device. The authentication device includes a light sensor that is used to scan a visual element displayed on a display of a user device in conjunction with an electronic message having an encrypted payload. The visual element encodes a unique identifier that the authentication device transmits to a server, receiving in response a cryptographic key stored in association with the unique identifier and usable to decrypt an encrypted payload of the electronic message. The authentication device can also generate encryption keys and corresponding unique identifiers suitable for encryption of payloads of electronic messages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.