| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent tampering of or stealing a glance at display data, by transmitting the display data while being encrypted and decrypting the encrypted display data captured onto a card by means of a display control circuit, in a ticket issuing system utilizing the IC card having a display. <P>SOLUTION: A ticket issuing system provided with security is equipped with: a card issuing server device including a storage means for storing ticket data and display data corresponding to the ticket data, an encryption means for encrypting the display data, and a transmission means for transmitting these data to a user terminal; and an encryption/decryption processing means for performing decryption inside a card. <P>COPYRIGHT: (C)2010,JPO&INPIT |
