CONFIDENTIAL INFORMATION TRANSMISSION METHOD, CONFIDENTIAL INFORMATION TRANSMISSION SYSTEM, AND CONFIDENTIAL INFORMATION TRANSMISSION DEVICE

摘要

Provided is a confidential information transmission method in which multiple pieces of distributed information that include master key information are generated by a first device and transmitted wirelessly to a second device, and the aforementioned multiple pieces of distributed information are received and the master key is restored by the second device. The first device arranges information obtained by applying an EXOR operation in sequence to multiple pieces of random number information and the master key in order to generate confidential information, generates final pieces of distributed information by applying the EXOR operation in sequence to the aforementioned multiple pieces of distributed information and the aforementioned confidential information, and transmits the aforementioned multiple pieces of distributed information to the second device. The aforementioned second device applies the EXOR operation in sequence to the aforementioned multiple pieces of distributed information to restore the aforementioned confidential information, divides the restored confidential information, and applies the EXOR operation to the divided pieces of information in order to restore the master key.