Method for realizing follow attack prevention in device with data sign determining function

Method for realizing follow attack prevention in device with data sign determining function

CN
  • CN 102,651,058 A
  • Filed: 03/30/2012
  • Published: 08/29/2012
  • Est. Priority Date: 03/30/2012
  • Status: Active Grant
First Claim
Patent Images

1. have the device of confirming the data signature function and realize taking precautions against the method for following attack, it is characterized in that this method comprisesStep 1):

  • the user imports Transaction Information, and the Net silver client forms correct transaction data, transaction data to be signed is sent to have the device of confirming the data signature function;

    Step

         2);

    have the device of confirming the data signature function and receive the transaction data that client transmits, the computing of making a summary in the device inside that has affirmation data signature function;

    Step

         3);

    have the device of confirming the data signature function and judge whether the data to be signed that receive meet the transaction data form, if meet, then on display screen, show transaction data, wait for that the user examines;

    Step

         4);

    if wait for that the button time is overtime, then have the information of the display screen prompting user operation overtime of confirming the data signature functional device, go to step

         5) then;

    If wait for button in the time user judge that transaction data is correct, press " affirmations " key, then have the display screen of confirming the data signature functional device and point out the user to operate information of successful, go to step

         6);

    Otherwise, press " cancellation " key, then have the information of the display screen prompting user operation failure of confirming the data signature functional device, go to step

         5) then;

    Step

         5);

    have the device refusal signature of confirming the data signature function, Net silver returns Fail Transaction to service end, asks cancellation or repeats this transaction;

    Step

         6);

    transaction data is signed successfully, and the result that will sign returns to the Net silver client;

    Step

         7);

    will sign result and transaction data of Net silver client sends to the service end checking, and service end certifying signature result finishes this transaction.

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