@techreport{weko_44940_1, author = "小栗,伸幸 and 塚田,千佳子 and 関野,公彦", title = "サーバ型電子署名システムの提案", 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" }