| 摘要 |
PROBLEM TO BE SOLVED: To secure the security of a final return declaration in transmitting at the time of transmitting the declaration from a taxpayer's computer to a computer installed in a tax office. SOLUTION: A declaration preparation part 11 in a client 1 sets up declaration data on an electronic form of a declaration, enciphers the signature information of a taxpayer and a hash code based on the declaration data, pads the enciphered data in the declaration, stores the declaration including the enciphered information and key information for deciphering the enciphered information in a declaration information file, and transmits the prepared electronic declaration to a server 5. A declaration receiving part 22 in the server 5 pads a stamp or a signature of the National Tax Administration Agency in the received declaration and registers the declaration in a declaration DB 6. |
