"Agipa Aigissinova,Hieu Hanh Le,Haruo Yokota","Evaluation of the performance of secure keyword search using bit-string signatures in the blockchain","第１２回データ工学と情報マネジメントに関するフォーラム","Proceeding of the 12th Forum on Data Engineering and Information Management (DEIM2020), E1-5",,,,,2020,