Electronic stamp, IC card, checking system and mobile equipment

Electronic stamp, IC card, checking system and mobile equipment

  • CN 1,479,216 A
  • Filed: 08/01/2003
  • Published: 03/03/2004
  • Est. Priority Date: 08/02/2002
  • Status: Active Application
First Claim
Patent Images

1. , a kind of electronic stamp, it comprises:

  • The importation, be used to import according to specify secret key encryption random number;

    The privacy key storage area is used to store the privacy key relevant with specifying key;

    Decoded portion is used for according to privacy key, and the random number of input is decoded;

    Encryption section is used for according to privacy key decoded random number being encrypted;

    AndOutput, the random number that has been used to export according to secret key encryption.

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