移動伝搬特性に基づくグループ秘密鍵共有の初期検討 : (その2)鎖型接続における従来方式の課題と新方式の提案

秀一笹岡, 誠人岩井, ヒデイチササオカ, ヒサトイワイ, Hideichi Sasaoka, Hisato Iwai

Published Jan 31, 2020• 0 citations

Abstract

Wireless physical layer security attracts attention as a kind of the information security that utilized radio propagation characteristics. A lot of studies of secret key agreement are performed as the main field, but there are relatively few studies of group secret key agreement. This Paper shows the summary of the conventional method based on mobile propagation characteristics for chain connection systems and clarified a problem of the technique to notify of difference of the series of RSSI. Then, this paper suggested a method to acquire multiple group secret key using a notice of the EX-OR of the series of two binary RSSI to solve a problem. This paper also suggested a method to acquire multiple group secret key by the key distribution using the notice of the EX-OR with the series of binary RSSI and the binary random number. These suggestion methods show that the update of the secret key becomes easy by utilizing multiple group secret key.

DOI: 10.14988/pa.2019.0000000519

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