US 2010/0135492 A1Published application

Anti-theft system and method for mobile phone

AssigneesShenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited

InventorLI-JIN JIA

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Abstract

A mobile phone anti-theft system includes a mobile phone, a SIM card and a real-name card-issuing system. The real-name card-issuing system includes a central processing unit, a first user information storage area, transmission equipment, and a card reader. The SIM card communicates with the central processing unit through the card reader and the transmission equipment. The real-name card-issuing system sends user information stored in the first user information storage area to the SIM card. If the SIM card needs to change the user information, it should verify first cryptographic keys with the real-name card-issuing system. The mobile phone includes a micro control unit, a second user information storage area and a transmission unit. The SIM card communicates with the micro control unit through the transmission unit. After each startup of the mobile phone, the mobile phone verifies second cryptographic keys with the SIM card.

Claims15

Dependent claims

A mobile phone anti-theft system, comprising:

a mobile phone including a micro control unit, a second user information storage area and a transmission unit, the second user information storage area, the micro control unit and the transmission unit electronically connected together;
a SIM card;
and
a real-name card-issuing system including a central processing unit, a first user information storage area, a transmission equipment, and a card reader, the first user information storage area, the central processing unit, the transmission equipment and the card reader electronically connected together;
wherein the SIM card communicates with the central processing unit through the card reader and the transmission equipment, the real-name card-issuing system sends user information stored in the first user information storage area to the SIM card, if the SIM card needs to change the user information, the SIM card should verify first cryptographic keys with the real-name card-issuing system;
the SIM card communicates with the micro control unit through the transmission unit, and the user information of the SIM card is sent to the mobile phone and stored in the second user information storage area, and after each startup of the mobile phone, the mobile phone verifies the second cryptographic keys with the SIM card.

3 more elements

A mobile phone anti-theft method comprising:

providing a real-name card-issuing system including a central processing unit, a first user information storage area for storing user information, a transmission equipment, and a card reader;
providing a SIM card including a third storage area for storing the user information;
providing a mobile phone including a second user information storage area for storing user information;
setting first cryptographic keys between the real-name card-issuing system and the SIM card;
setting second cryptographic keys between the mobile phone and the SIM card;
when the SIM card needs to change the user information, verifying the first cryptographic keys;
when the first cryptographic keys are validated, updating the user information of the SIM card;
when the first cryptographic keys are not validated, sending update failure message to the real-name card-issuing system;
after each startup of the mobile phone, verifying the second cryptographic keys;
when the second cryptographic keys are validated, allowing the mobile phone to be used normally;
when the second cryptographic keys are not validated, locking the mobile phone.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/604,917Filed 23 Oct 2009
Priority: CN 200810305937.43 Dec 2008
Published: 3 Jun 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G06F 21/88
Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer:…
H04W 12/126
Detection or prevention of fraud: anti-theft arrangements, e.g. protection against subscriber identity module [SIM] cloning
H04W 12/04
Security arrangements; Authentication; Protecting privacy or anonymity: key management, e.g. using generic bootstrapping architecture [GBA]
G06F
Computing and data processing

Family

US 8,343,236 B2Related patent
US 2010/0135492 A1This patent

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