| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To properly specify a common key while keeping an ID secret, in a device incompatible with public key encryption of an RFID tag or the like. <P>SOLUTION: A common key encryption means of a non-contact IC device and a reader/writer carries out common key encryption. A storage means stores an ID different for each non-contact IC device or reader/writer in association with a common key, and performs information communication through the common key encryption using the common key encryption means. Therefore, since encryption communication is performed using the common key encryption, even a low-throughput device can perform encryption communication while keeping the ID secret. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
