| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication device shared by a plurality of users that can prevent information leakage between the sharing users even for an email sent to a representative destination. SOLUTION: The communication device 1 on a sending side encrypts information to be received by a specific user of the communication device 2 on a receiving side with a private key corresponding to the user, and further encrypts an email including the encrypted information with a public key corresponding to a mail address of the receiving communication device 2 before sending it. When receiving the encrypted email, the receiving communication device 2 decrypts it with a decryption key and saves it as received mail in a storage part 23. The encrypted information included in the email can be decrypted only by the user who should receive the information to prevent information leakage between sharing users. COPYRIGHT: (C)2006,JPO&NCIPI
|
