Mobile terminal for preventing illegitimate change of identification number by matching authentication information
First Claim
1. A method for preventing illegitimate change of an identification number of a mobile terminal not having authentication information and a code, the method comprising:
- if change of an identification number is requested, receiving and storing new authentication information and encoding the new authentication information;
determining whether a previously-stored first authentication information exists;
if a previously-stored first authentication information does not exist, storing an identification number and the newly encoded authentication information as a first authentication information; and
if a previously-stored first authentication information including a previously-stored identification number exists, performing the steps ofdetermining whether the encoded authentication information corresponds to the first authentication information,if the encoded authentication information corresponds to the first authentication information, storing new identification number that replaces the previously stored identification number, andif the encoded authentication information does not correspond to the first authentication information, performing error handling;
wherein the first authentication information is a number other than one or both of an equipment serial number (ESN) or an international mobile equipment identifier (IMEI) and is formed by encoding authentication information received from an authentication data server and is stored in a one-time programmable (OTP) area in the mobile terminal in which information stored once cannot be permanently changed or erased; and
wherein both the previously-stored identification number and the new identification that replaces that previously stored identification number is stored in an area of a memory of the mobile terminal other than the OTP area.
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Accused Products
Abstract
The present invention relates to a mobile terminal and a method for preventing illegitimate change of an identification number of the mobile terminal. The method includes receiving, if change of an identification number is requested, and storing new authentication information and encoding the authentication information; determining whether a previously stored first authentication information exists; storing, if a previously stored first authentication information does not exist, an identification number, and storing the encoded authentication information as a first authentication information; and determining, if a previously stored first authentication information exists, whether the encoded authentication information corresponds to the first authentication information, and storing an identification number, if the encoded authentication information corresponds to the first authentication information, and performing error handling, if the encoded authentication information does not correspond to the first authentication information.
22 Citations
11 Claims
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1. A method for preventing illegitimate change of an identification number of a mobile terminal not having authentication information and a code, the method comprising:
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if change of an identification number is requested, receiving and storing new authentication information and encoding the new authentication information; determining whether a previously-stored first authentication information exists; if a previously-stored first authentication information does not exist, storing an identification number and the newly encoded authentication information as a first authentication information; and if a previously-stored first authentication information including a previously-stored identification number exists, performing the steps of determining whether the encoded authentication information corresponds to the first authentication information, if the encoded authentication information corresponds to the first authentication information, storing new identification number that replaces the previously stored identification number, and if the encoded authentication information does not correspond to the first authentication information, performing error handling; wherein the first authentication information is a number other than one or both of an equipment serial number (ESN) or an international mobile equipment identifier (IMEI) and is formed by encoding authentication information received from an authentication data server and is stored in a one-time programmable (OTP) area in the mobile terminal in which information stored once cannot be permanently changed or erased; and
wherein both the previously-stored identification number and the new identification that replaces that previously stored identification number is stored in an area of a memory of the mobile terminal other than the OTP area. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for preventing illegitimate change of an identification number of a mobile terminal having stored an authentication information, a code and a first authentication information, the method comprising:
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if change of an identification number is requested, encoding the stored authentication information; determining whether the encoded authentication information corresponds to the stored first authentication information; if the encoded authentication information corresponds to the first authentication information, storing an identification number; and if the encoded authentication information does not correspond to the first authentication information, performing error handling; wherein the first authentication information is a number other than one or both of an equipment serial number (ESN) or an international mobile equipment identifier (IMEI) and is formed by encoding authentication information received from the authentication data server and is stored in a one-time programmable (OTP) area in which information stored once cannot be permanently changed and erased; and
wherein the identification number comprises one or both of the ESN and the IMEI and is stored in an area of a memory in the mobile terminal other than the OTP area that can be erased in order to change the identification number after comparing the first authentication number in the OTP with the encoded authentication information. - View Dependent Claims (8, 9)
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10. A mobile terminal comprising:
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a storage unit for storage of an authentication information, a code, an identification number and a first authentication information in which said first authentication number is a number other than one or both of an equipment serial number (ESN) or an international mobile equipment identifier (IMEI); an encoding unit for encoding the stored authentication information to generate an encoded authentication information; a comparing unit for comparison of the encoded authentication information with the first authentication information; and a control unit for performing the steps of if the encoded authentication information corresponds to the first authentication information, storing the identification number in a storage area of the mobile terminal other than a one-time programmable OTP, and if the encoded authentication information does not correspond to the first authentication information, performing error handling; providing the storage unit with a flash area formed of a flash memory device for storage of the authentication information and code received from an authentication data server and the identification number comprising at least one of an ESN or IMEI received from an identification number server and is replaceable when the encoded authentication information corresponds to the first authentication information in the OTP; wherein the providing step further comprises the steps of configuring the storage unit to include the (OTP) area in which information stored once cannot be permanently changed and erased for storage of the first authentication information formed by encoding authentication information received from the authentication data server in the manufacture of the mobile terminal. - View Dependent Claims (11)
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Specification