| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a data processing method, and the like, that can increase data processing efficiency and security, when performing electronic signature using an IC card, and the like. <P>SOLUTION: The method includes a first indication step of transmitting a first command including first data from apparatus to a semiconductor device (S101); a first processing step of processing data by using the first data according to the first command in the semiconductor device, in the semiconductor device (S102); a first storing step of storing the first data in the semiconductor device (S103); a first response step of transmitting a result of the first processing step to the equipment (S104); a second indication step of transmitting a second command from the equipment to the semiconductor device (S105); a second processing step of calculating a hash value of the first data stored in the first storing step, in accordance with the second command in the semiconductor device (S106); and a second response step of transmitting a result of the second processing step to the equipment (S108). <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
