@techreport{weko_194933_1,
   author	 = "双紙,正和",
   title	 = "ホワイトボックス暗号の改良について",
   year 	 = "2019",
   institution	 = "広島市立大学情報科学部",
   number	 = "7",
   month	 = "feb"
}