INTEGRATED CIRCUIT (IC) CHIP AND METHOD OF VERIFYING DATA THEREOF

摘要

Provided are an IC chip and a method of verifying data thereof. The present invention verifies integrity of data by comparing an integrity verifying value generated from data using an integrity verifying value generating algorithm before a write operation for storing data in a storing unit is performed and an integrity verifying value generated from data stored in the storing unit using the integrity verifying value generating algorithm after the write operation is completed. According to the present invention, the present invention can confirm whether data stored in the IC chip is normally stored when manufacturing/issuing the IC chip and whether data stored in the IC chip is normally stored during the IC chip is used.

主权项

1. An IC chip, comprising:
a storing unit configured to maintain stored data regardless of whether power is supplied; a verifying value generating unit configured to generate a first integrity verifying value from data stored in the storing unit using an integrity verifying value generating algorithm after a write operation for storing the data in the storing unit is completed; and a verifying unit configured to verify integrity of the data by comparing a second integrity verifying value generated from the data using the integrity verifying value generating algorithm before the write operation for storing the data in the storing unit is performed and the first integrity verifying value.