A SMART CARD AND A METHOD FOR ADDING DIGITAL WATERMARK TO THE INTERIOR DATA OF THE SMART CARD

摘要

A smart card and a method for adding digital watermark to the interior data of the smart card. The smart card includes microprocessor, memory, and includes: monitoring module, which is used for monitoring the I/O process of the write in or read out of the data and the format of the data, and sending the monitoring result to the microprocessor; and the microprocessor decides whether or not to send the instruction of embedding watermark to the watermark embedding module according to the monitoring result; watermark embedding module connected with the microprocessor, which acquires the complete data of the write in or read out and adds watermark information to the data according to the instruction sent by the microprocessor.