| 摘要 |
A secure connection between the main unit of a portable information device and a peripheral device via a wireless network is ensured. <??>An electronic seal makes it possible to transmit an encryption key to a portable information terminal and a peripheral device thereof by an operation which is analogous to "seal affixing" by a user confirmed as an authorized user. For example, user confirmation is performed by an authentication technology using biometric information, such as "fingerprint authentication". After the portable information terminal and the peripheral device thereof perform mutual recognition, they can perform secure mutual communication via a wireless network, etc., by using the encryption key provided via the electronic seal. <IMAGE>
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