Patent · US Active

Secured daisy chain communication

US10313131B2 · kind B2 · utility

1Cited by

1References

22Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Goran Keser · Munich, DE
Phillip Gesien · Straubing, DE
Guenter Hofer · St. Oswald, AT
Marcus Janke · Munich, DE

Key dates

Filing date	Jan 26, 2017
Grant date	Jun 4, 2019
Priority date	—
Expiry date	Dec 1, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/76
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

An intermediate servant device connected in a daisy chain configuration with a set of devices is described. The intermediate servant device may be configured to receive, from a previous servant device of the set of servant devices, a request for data, a first response to the request for data, and authentication information for the first response to the request for data. The intermediate servant device may be further configured to generate a second response to the request for data and determine authentication information for the second response based on the authentication information for the first response, the second response, and a key assigned to the intermediate servant device. The intermediate servant device may be further configured to output at least the authentication information for the second response, the first response, and the second response.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.