| 摘要 |
A method for obtaining and issuing key information of a collection/delivery box device, which enables issuance of high security key information to be used for releasing a lock on the collection/delivery box device and obtainment by a collection/delivery company of the key information with the high security being ensured is provided. A sender gives a delivery notice of an article to a receiver. The receiver or the sender issues key information. The key information is given to the collection/delivery company in the case where the receiver issues the key information. The key information is given to the receiver and the collection/delivery company in the case where the sender issues the key information. At least one of the receiver, the sender, and the collection/delivery company performs the issuance or the communication of the key information by using a mobile communication device. The mobile communication device is capable of close wireless communication of the key information with the collection/delivery box device.
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