Mitigation of problems arising from SIM key leakage
US10542427B2 · kind B2 · utility
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3Claims
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Key dates
| Filing date | Apr 8, 2016 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Aug 15, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/35
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Method, system or Universal Integrated Circuit Card (UICC) for provisioning a UICC with a new key. The UICC contains an initial subscriber key shared between the UICC and an authentication center. A new key is exchanged between the UICC and the authentication center using a communication between the UICC and the authentication center authenticated using the initial subscriber key. The new key is used in place of the initial subscriber key for further communications with the UICC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.