A smart card with verification means

A smart card with verification means

  • CN 103,415,863 A
  • Filed: 02/07/2012
  • Published: 11/27/2013
  • Est. Priority Date: 02/07/2011
  • Status: Active Application
First Claim
Patent Images

1. one kind can be carried out the smart card of disposable PIN code off line safety verification with card reader, and described smart card comprises:

  • With the microprocessor of storer, user interface and I/O contact terminal mutual connection, described user interface comprises yard enter key and code display, and described I/O contact terminal is used for and described card reader mutual connection;

    AndBe stored in the cryptographic digest of the user PIN in storer, described cryptographic digest produces by cryptographic algorithm;

    Described smart card is configured for;

    From described code enter key, receive the input PIN code;

    In response to from described code enter key, receiving this input PIN code in described display generation and show disposable PIN code;

    By the cryptographic algorithm with identical, produce the cryptographic digest of this input PIN code, and by the cryptographic digest relatively produced and the cryptographic digest of storing, determine that this institute inputs PIN code and whether mates described user'"'"'s PIN code, this summary of storing produces by described identical cryptographic algorithm;

    AndIf this cryptographic digest produced is mated the cryptographic digest that this is stored, described disposable PIN code is stored in described storer, described disposable PIN code is used by described card reader in the described off line safety verification of described smart card.

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