Mobile device secret protection system and method
US11960581B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2021 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | Feb 5, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3268
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is disclosed. The method includes transmitting, by a user device to an access device, a digital certificate and a seed. The access device encrypts the seed and a first access device key with a public key from the digital certificate to form encrypted data. The method also includes receiving from the access device, the encrypted data, decrypting the encrypted data using a private key corresponding to the public key to obtain the seed and the first access device key, verifying that the seed received from the access device matches the seed sent to the access device, encrypting a secret or derivative thereof with the first access device key to form an encrypted secret or derivative thereof, and transmitting to the access device, the encrypted secret or derivative thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.