IMPORTANT INFORMATION TRANSMISSION SYSTEM, IMPORTANT INFORMATION TRANSMITTER, IMPORTANT INFORMATION TRANSMISSION METHOD, RELAY DEVICE, RELAY METHOD, AND PROGRAM THEREOF

摘要

PROBLEM TO BE SOLVED: To provide an important information transmission system, an important information transmitter, an important information transmission method, a relay device, a relay method, and a program thereof.;SOLUTION: The important information transmitter for transmitting important information to be used for communication to an important information receiver via a relay device includes: a distributed information generating section for distributing the important information into n (2≤n) pieces of distributed information which requires at least k (2≤k≤n) pieces of distributed information for restoring the important information; a distributed information grouping section for grouping the n pieces of distributed information into r (1≤r≤n) pieces of distributed information groups corresponding to the relay devices; and a transmitter side transmitting section for transmitting the distributed information to the r pieces of relay devices respectively.;COPYRIGHT: (C)2010,JPO&INPIT