@techreport{weko_44941_1,
   author	 = "塚田,千佳子 and 関野,公彦 and 小栗,伸幸",
   title	 = "電子署名システムにおける真正性保証方式",
   year 	 = "2004",
   institution	 = "（株）NTTドコモ, （株）NTTドコモ, （株）NTTドコモ",
   number	 = "22(2003-CSEC-024)",
   month	 = "mar"
}