COOKIE DATA STORED ON TRANSPORTABLE RECORDING MEDIUM

摘要

A transportable recording medium, such as a memory card (see figure 2) (110), includes an area for storing cookie information (222), such as user information, that has been encrypted using a public key obtained under a public key cryptosystem. This makes it easy to use the same cookie information in different terminals and has cookie information, which has conventionally been unique to respective terminals, become unique to respective users.