ELECTRONIC FILE SENDING METHOD

摘要

An electronic file sending method is provided which can securely and easily send en electronic file to a receiver. A receiving apparatus 120 receives from a sending apparatus 110 an electronic mail 512 including an encrypted electronic file 511. The sending apparatus 110 uses a public key of a management server 130 to encrypt a decryption password that is necessary to decrypt the encrypted electronic file 511 and sends the encrypted decryption password to the management server 130. In association with a file identifier of the electronic file 511, the management server 130 stores the decryption password and an electronic mail address of a correct receiver, who is a receiver Y of the receiving apparatus 120. The receiving apparatus 120 sends to the management server 130 the file identifier of the electronic file 511 and the electronic mail address of the receiver Y. The management server 130 uses a public key of the receiving apparatus 120 to encrypt the password and sends the encrypted password to the receiving apparatus 120.