| 摘要 |
An apparatus for generating a time synchronization type OTP(On Time Protocol) in a portable phone and a method thereof are provided to solve an error of a time synchronization type OTP number by preventing a time error with a financial organization server by generating the OTP number based on standard time information transmitted through a base station by a satellite. An apparatus for generating a time synchronization type OTP(On Time Protocol) in a portable phone comprises an IC chip(10), a memory(5), a cryptoanalysis unit(8), a time counter(3), an OTP generation module(7) and a controller(2). The IC chip(10) stores a serial number and a secret key encrypted for generating the OTP, and is installed at an IC interface(9) arranged in a battery mounting seat(11) of the portable phone. The memory(5) stores a downloaded OTP program. The cryptoanalysis unit(8) deciphers the serial number and the secret key of the IC chip(10). The time counter(3) counts standard time information offered by a base station. The OTP generation module(7) generates the OTP number by applying the standard time information, the serial number and the secret key as a key value of the OTP program stored at the memory(5). The controller(2) converts a current mode into an OTP generation mode, requests inputting a user authentication number for the user authentication, generates the OTP number by driving the OTP generation module(7) if the user is determined to be legal, and displays the generated OTP number via a display unit(6).
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