"KEISUKE TANAKA,Keisuke Hara,Fuyuki Kitagawa,Takahiro Matsuda,Goichiro Hanaoka","Simulation-based receiver selective opening CCA secure PKE from standard computational assumptions",,"Theoretical Computer Science",,"Volume 795",,"Page 570-597",2019,Nov. "KEISUKE TANAKA,Shohei Egashira,Yuyu Wang","Fine-Grained Cryptography Revisited","Advances in Cryptology - ASIACRYPT 2019 - 25th International Conference on the Theory and Application of Cryptology and Information Security",,,,,"pp. 637-666",2019,Nov. "KEISUKE TANAKA,Fuyuki Kitagawa,Takahiro Matsuda","Simple and Efficient KDM-CCA Secure Public Key Encryption","25th International Conference on the Theory and Application of Cryptology and Information Security(ASIACRYPT 2019)",,,,,"pp. 97-127",2019,Nov. "KEISUKE TANAKA,Fuyuki Kitagawa,Ryo Nishimaki,Takashi Yamakawa","Adaptively Secure and Succinct Functional Encryption: Improving Security and Efficiency, Simultaneously.","39th Annual International Cryptology Conference(CRYPTO 2019)","Advances in Cryptology ? CRYPTO 2019",,,,"pp. 521-551",2019,Aug. "KEISUKE TANAKA,Fuyuki Kitagawa,Takahiro Matsuda","CCA Security and Trapdoor Functions via Key-Dependent-Message Security.","39th Annual International Cryptology Conference","Advances in Cryptology ? CRYPTO 2019",,,,"pp. 33-64",2019,Aug. "KEISUKE TANAKA,Ai Ishida,Yusuke Sakai,Keita Emura,Goichiro Hanaoka","Proper Usage of the Group Signature Scheme in ISO/IEC 20008-2",,"Asia CCS '19: Proceedings of the 2019 ACM Asia Conference on Computer and Communications Security",,,,"Page 515?528",2019,July "KEISUKE TANAKA,Masayuki Tezuka,Yusuke Yoshida","Weakened Random Oracle Models with Target Prefix.","International Conference on Security for Information Technology and Communications (SECITC 2018)",,,,,,2019,May "KEISUKE TANAKA,Fuyuki Kitagawa,松田 隆宏","鍵依存平文安全な暗号方式に基づく選択暗号文攻撃に対し安全な公開鍵暗号の構成","2019年暗号と情報セキュリティシンポジウム",,,,,,2019,Jan. "KEISUKE TANAKA,Masayuki Tezuka","集合構造を持つメッセージに対する n-out-of-n 消去署名方式","2019年暗号と情報セキュリティシンポジウム",,,,,,2019,Jan. "KEISUKE TANAKA,Shinji Yoshino,Masayuki Tezuka,Kazumasa Shinagawa","Intel SGXを用いた入力を制御できる複数入力関数型暗号","2019年暗号と情報セキュリティシンポジウム",,,,,,2019,Jan. "KEISUKE TANAKA,Yusuke Yoshida,Fuyuki Kitagawa","Diffie-Hellman判定問題に基づく暗号文サイズの小さなNon-Committing暗号","2019年暗号と情報セキュリティシンポジウム",,,,,,2019,Jan. "KEISUKE TANAKA,Tasuku Narita,Fuyuki Kitagawa,Yusuke Yoshida","計算量的改ざん耐性を満たす秘密分散","2019年暗号と情報セキュリティシンポジウム",,,,,,2019,Jan. "Maxim Jourenko,Kanta Kurazumi,Mario Larangeira,Keisuke Tanaka","Notes on Offchain Protocols","Symposium on Cryptography and Information Security",,,,,,2019,Jan. "Xiangyu Su,Mario Larangeira,Keisuke Tanaka","Verifiable Sequential Work with Trusted Generator",,,,,,,2019,Jan. "Kanta Kurazumi,Mario Larangeira,Keisuke Tanaka","A Timeout Anonymous Payment Channel for Decentralized Currencies",,,,,,,2019,Jan. "Maxim Jourenko,Mario Larangeira,Keisuke Tanaka","Lightweight Virtual Payment Channels","Symposium on Cryptography and Information Security",,,,,,2019,Jan. "KEISUKE TANAKA,Yusuke Yoshida,Fuyuki Kitagawa","Non-Committing Encryption with Quasi-Optimal Ciphertext-Rate Based on the DDH Problem","25th ASIACRYPT 2019","Advances in Cryptology - ASIACRYPT 2019 - 25th International Conference on the Theory and Application of Cryptology and Information Security",,,,"pp. 128-158",2019,