Automatic generation of private authentication key for wireless communication systems
US5794139A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Oct 10, 1995 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Oct 10, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/71
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for automatically generating an authentication key (A-Key) in a mobile station wherein the mobile station periodically receives random numbers from a base station, and automatically generates the authentication key from a received random number and from mobile station identification data stored in the mobile station. The mobile station identification data may include the electronic serial number of the mobile station, a user selected value, and a cellular system selected value. In addition, mixing registers may be utilized by an encoding algorithm, such as the CAVE algorithm, for encoding the random numbers and the identification data to automatically generate the mobile station authentication key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.