System and method for a multi system trust chain
US11303616B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2020 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Aug 27, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A trust chain having client system and a remote system in a secure connection, wherein an intermediary system associated with the network flow path serves as a signing entity to establish an end to end transitive trust. The intermediate system is a corroborative entity in the operations technology realm of the client system. The remote system serves as the host for a plurality of services in the information technology realm. A two way handshake during the initial secure exchange protocol between a local client application and a remote service is extended to a three way handshake that includes a nonce issued by the remote service on the remote system and a digital signature for the nonce issued by a signature service on an associated intermediate system. The nonce signature is verified authoritatively at the remote system based on the signing certificate of the intermediate system for explicit proof of association.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.