Method and arrangement for encrypting data transfer at an interface in mobile equipment in radio network, and mobile equipment in radio network
The invention relates to a method for securing the transfer of cipher keys and security codes between a mobile equipment ( 100, 300, ME) in a radio network and a SIM card ( 305 ) attached thereto. In the method according to the invention the mobile equipment and the SIM card attached thereto are fir...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The invention relates to a method for securing the transfer of cipher keys and security codes between a mobile equipment (
100, 300,
ME) in a radio network and a SIM card (
305
) attached thereto. In the method according to the invention the mobile equipment and the SIM card attached thereto are first authenticated separately. After successful authentication, a cipher key KSM is given to the mobile equipment and the SIM card to be used by them. This cipher key is used to encrypt all other exchanges of passwords and security codes between the mobile equipment and the SIM card. |
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