Bi-directional communication protocol based device security
US10733291B1 · kind B1 · utility
18Cited by
23References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 11, 2018 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Jan 4, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/34
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device, such as a payment reader, may include one or more units capable of providing access to sensitive data. Such units may be connected to each other through tamper traces. A secure unit can send known keys or key-value pairs between the units using a multi-directional protocol. The keys or key-value pairs are then compared by the secure unit to monitor or detect a tamper event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.