Compressed PKI methods for machine-to-machine authentication in bandwidth-constrained medical devices
US12177367B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2022 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | May 6, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/88
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments provide methods of conducting operations with an implantable medical device (IMD) and an external controller device for performing authentication operations. In some embodiments, the method comprises: generating or storing an authentication data structure in the external controller device for over-the-air communication between the external device and the IMD, wherein the authentication data structure is generated by: (1) removing attribute fields from a first digital certificate and adding a public key of the external controller device to form an intermediate data structure; (2) creating a digital signature of the first intermediate data structure using a second digital certificate of an issuing certificate authority (CA); and (3) forming the authentication data structure by combining the intermediate data structure, the created digital signature, a public key of the issuing CA, and a digital signature of the public key of the issuing CA created using a third digital certificate of a root CA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.