Authentication method in communication system
US8243928B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 7, 2008 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Apr 16, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/61
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An authentication method is provided in which a first portable device generates and transmits a first random number and a first timestamp to a first USIM in the first portable device; the first USIM calculates a first sign for the first portable device; the first portable device requests authentication for authenticated communication from a second portable device through transmission of the first random number, the first timestamp, and the first sign to the second portable device; the second portable device generates a second random number and a second timestamp and transmits the information to a second USIM in the second portable device; the second USIM generates a second sign for the second portable device and a second personal key which the second portable device transmits to the first portable device; the first portable device then transmits the information to the first USIM which generates a first personal key for authenticated communication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.