Establishing a secure connection between a master device and a slave device
US10305900B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2013 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Aug 25, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/65
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method (200) of establishing a secure connection (213) between a master device (101) and a slave device (102), sharing at least a first communication channel, is provided. The method comprises transmitting (201) an identifier IDM of the master device over the first communication channel, generating (202) a proof-of-possession Xs of a key Ks, using Ks, IDM, and a first identifier I DSi of the slave device, generating (202) a key MKS using IDM, I DSi, and Ks, storing (204) MKS, and transmitting (203) I DSi and Xs to the master device. The method further comprises transmitting (205) IDSi, Xs, and IDM, to a bootstrapping server, acquiring (206) Ks using IDSi, and generating (207) a proof-of-possession XB of Ks using Ks, IDM, and IDsi. The method further comprises, if XB and Xs are identical (208), generating (210) a key MKB using IDM, I DSi, and Ks, and transmitting (211) MKB to the master device where it is stored (212). Optionally, I DSi and Xs may be transmitted (203) to the master device over a second, preferably location-limited, communication channel, such as audio or video.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.