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Mobile terminal for providing one time password and operating method thereof

  • US 10,057,254 B2
  • Filed: 12/22/2015
  • Issued: 08/21/2018
  • Est. Priority Date: 12/31/2014
  • Status: Active Grant
First Claim
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1. A mobile terminal comprising:

  • a first one-time password (OTP) generating module configured to provide identification information regarding each of a plurality of pieces of OTP data to a user, and output an OTP provided according to any one identification information selected by the user; and

    a second OTP generating module based on mobile trusted module (MTM) configured to transfer the identification information regarding each of the plurality of pieces of OTP data to the first OTP generating module according to a corresponding request from the first OTP generating module, generate an OTP by using OTP data corresponding to the selected identification information, and transfer the generated OTP to the first OTP generating module;

    wherein the first OTP generating module comprises;

    an OTP information providing unit configured to request a plurality of pieces of OTP data retained in the mobile terminal from the second OTP generating module, and provide identification information regarding each of the plurality of pieces of OTP data received from the second OTP generating module;

    an OTP generation data transmitting unit configured to transmit the selected identification information and an input parameter for OTP generation to the second OTP generating module; and

    an OTP output unit configured to receive the OTP generated by the second OTP generating module and output the received OTP; and

    wherein the second OTP generating module comprises;

    an OTP calculating unit configured to perform a calculation operation to generate an OTP;

    an OTP storage unit configured to store a plurality of pieces of OTP data and identification information regarding each of the plurality of pieces of OTP data; and

    an OTP control unit configured to control the OTP calculating unit to perform calculation by using a specific cryptographic engine on the basis of the selected identification information received from the first OTP generating module.

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