Method and apparatus for preventing hacking of subscriber identitification module in a mobile communication terminal
AssigneeLG Electronics Inc.
InventorJae Lee
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Abstract
An apparatus and method of preventing hacking of a subscriber identification module in a mobile communication terminal are disclosed. Hacking is prevented by storing a secret code in a hidden area of a writable non-volatile memory area and initializing a processor of the mobile communication terminal if the secret code matches a specified code.
Claims20
A method of preventing hacking of a subscriber identification module (SIM) in a mobile communication terminal, the method comprising:
- storing a secret code in a hidden area of non-volatile memory, the hidden area readable only;
- and
- initializing a processor of the mobile communication terminal if the stored secret code matches a specific code.
A method of preventing hacking of a subscriber identification module (SIM) in a mobile communication terminal, the method comprising:
- executing a boot loader function upon applying power to the mobile communication terminal;
- processing a command to access a hidden area of non-volatile memory, the hidden area readable only and containing a pre-stored secret code;
- reading the secret code from the hidden area;
- comparing the secret code to a specific code;
- and
- initializing a processor of the mobile communication terminal and informing a control computer connected to the mobile communication terminal that a SIM lock function exists if the read secret code matches the specific code.
A mobile communication terminal for preventing hacking of a subscriber identification module (SIM), the mobile communication terminal comprising:
- a non-volatile memory type SIM adapted to store a secret code in a hidden area, the hidden area readable only after the secret code has been stored;
- and
- a control unit adapted to read the secret code from the hidden area, compare the secret code to a specific code and output an operational control signal upon power-up of the mobile communication terminal if the read secret code matches the specific code.
Dependencies are inferred from the claim text.