System for allocating a chip card to a network operator
US8032748B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2005 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Jan 17, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W8/265
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A chip card needs to be allocated in a secured manner to a network operator via a personalization center in order to determine a final authentication key which is attributed to a subscriber of the operator without its being transmitted via a network. The following is loaded into a card by a module: an algorithm and an allocation key; an algorithm for determination of the authentication key and at least one intermediate authentication key. A module transmits an allocation message which includes a final identity number, a random number and an allocation signature from the center to the card. The card authenticates the message by means of the allocation algorithm as a function of the allocation key and the allocation signature, and determines the final authentication key as a function of the intermediate key and the random number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.