DEVICE FOR STORING SECRET INFORMATION USING POSTURE OR MOTION OF OBJECT AS SECRET KEY

摘要

A device to which an electronic tag with a sensor is applied. The sensor is a posture sensor or a motion sensor using acceleration, and the application field is to store secret information and reference it as necessary. Especially the device is used when information is shared by persons. Information can be, for example, a message not going public to the secret sharers. Two or more objects (M) each have a posture sensor and means for transmitting the posture sensor output to a remote place. A separate station (N) has receiving means for receiving a remote transmission signal of the posture sensor output, first storage means for storing as a secret key a data set containing two or more combinations of the posture sensor output range data on the objects (M), second storage means for storing secret information in accordance with the secret key, and means for outputting secret information stored in the second storage means in accordance with the secret key when the combination of the posture sensor output data received by the receiving means agrees with the secret key.