Method and apparatus for simultaneous key generation on device and server for secure communication
US12353518B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 13, 2024 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | May 13, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/101
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A secure communication system is disclosed for communication between first and second party devices. An input interface is provided for receiving from an external host a unique host factor in addition to a user input interface for receiving from a user a unique PIN for a user and a selection input for selecting one of the plurality of stored entropy stores as a user selected entropy store A first private key generator is operable for generating a private key using a key generation algorithm requiring the selected entropy store, the host factor and the unique user PIN. The second party device includes a second storage device for storing a plurality of entropy stores. An input interface is provided for receiving the same unique host factor as received by the first party device. A communication interface facilitates communication with the first party device to receive from the first party device a user PIN and an indication of the user selected entropy store. A second private key generator is operable for generating a private key using the predetermined key generation algorithm with the received user PIN, the received host factor, and an extracted entropy store corresponding to user s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.