Mutual authentication of confidential communication
US12375304B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2022 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Sep 13, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments of the invention relate to systems and methods for confidential mutual authentication. A first computer may blind its public key using a blinding factor. The first computer may generate a shared secret using its private key, the blinding factor, and a public key of a second computer. The first computer may encrypt the blinding factor and a certificate including its public key using the shared secret. The first computer may send its blinded public key, the encrypted blinding factor, and the encrypted certificate to the second computer. The second computer may generate the same shared secret using its private key and the blinded public key of the first computer. The second computer may authenticate the first computer by verifying its blinded public key using the blinding factor and the certificate of the first computer. The first computer authenticates the second computer similarly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.