TERMINAL DEVICE, MAIL TRANSMISSION SYSTEM, AND TRANSMISSION METHOD

摘要

A terminal device includes, as functions for transmitting a file with a digital signature via mail, a first communication unit for carrying out communication with a terminal device used by an authorizer when a distance from that terminal device is not greater than a prescribed distance, an obtaining unit for obtaining a value obtained from a file to be transmitted, which has been encrypted through encryption processing performed by making use of information exchanged with that terminal device, and a transmission instruction unit for outputting an instruction for mail transmission of the file and the obtained encrypted value.

主权项

1. A terminal device capable of outputting an instruction for mail transmission of a file, comprising:
a first communication unit for carrying out communication with another terminal device when a distance from said another terminal device is not greater than a prescribed distance; an obtaining unit for obtaining a value obtained from said file encrypted through encryption processing performed by making use of information exchanged with said another terminal device through said first communication unit; and an instruction unit for outputting an instruction for mail transmission of said file and encrypted said value.