| 摘要 |
<p>An information tray creation device (10) generates a pair of an encryption key and a decryption key and encrypts disclosure information using the encryption key to generate the encrypted disclosure information. Subsequently, the information tray creation device (10) encrypts the decryption key using the public key of the disclosure destination to generate the decryption key information. The information tray creation device (10) then appends a pair of the disclosure destination and the decryption key information as one record to the disclosure destination information of an information tray. Thereafter, the information tray creation device (10) appends the pairs of the disclosure destinations and the decryption key information for all the disclosure destinations to the information tray.</p> |
