@article{CTT100894867, author = {Xiangyu Su and Mario Larangeira and Keisuke Tanaka}, title = {How to Prove Work: With Time or Memory.}, journal = {IEEE Access}, year = 2021, } @article{CTT100863305, author = {Keisuke Hara and Keisuke Tanaka}, title = {Tightly secure ring signatures in the standard model}, journal = {Theoretical Computer Science}, year = 2021, } @article{CTT100894888, author = {Kyohei Sudo and Masayuki Tezuka and Keisuke Hara and Yusuke Yoshida and Keisuke Tanaka}, title = {Watermarkable Signature with Computational Function Preserving}, journal = {IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences}, year = 2021, } @article{CTT100894886, author = {Yi Lu and Keisuke Hara and Keisuke Tanaka}, title = {Receiver Selective Opening CCA Secure Public Key Encryption from Various Assumptions}, journal = {IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences}, year = 2021, } @article{CTT100863507, author = {Shohei Egashira and Yuyu Wang and Keisuke Tanaka}, title = {Fine-Grained Cryptography Revisited}, journal = {Journal of Cryptology}, year = 2021, } @article{CTT100863508, author = {Fuyuki Kitagawa and Ryo Nishimaki and Keisuke Tanaka}, title = {Simple and Generic Constructions of Succinct Functional Encryption}, journal = {Journal of Cryptology}, year = 2021, } @article{CTT100894884, author = {Masayuki Tezuka and Keisuke Tanaka}, title = {Redactable Signature with Compactness from Set-Commitment}, journal = {IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences}, year = 2021, } @article{CTT100862650, author = {KEISUKE TANAKA and Keisuke Hara}, title = {Ring Signature With Unconditional Anonymity in the Plain Model}, journal = {IEEE Access}, year = 2021, } @inproceedings{CTT100863306, author = {Carlo Brunetta and Mario Larangeira and Bei Liang and Aikaterini Mitrokotsa and Keisuke Tanaka}, title = {Turn-Based Communication Channels}, booktitle = {}, year = 2021, } @inproceedings{CTT100894891, author = {Maxim Jourenko and Mario Larangeira and Keisuke Tanaka}, title = {Payment Trees: Low Collateral Payments for Payment Channel Networks}, booktitle = {Financial Cryptography and Data Security}, year = 2021, } @inproceedings{CTT100862682, author = {Xiangyu Su and Mario Larangeira and Keisuke Tanaka}, title = {How to Prove Work: With Time or Memory}, booktitle = {IEEE International Conference on Blockchain and Cryptocurrency (ICBC)}, year = 2021, } @inproceedings{CTT100749216, author = {Yuyu Wang and Takahiro Matsuda and Goichiro hanaoka and KEISUKE TANAKA}, title = {Impossibility on Tamper Resilient Cryptography with Uniqueness Properties}, booktitle = {Public-Key Cryptography – PKC 2021}, year = 2021, } @inproceedings{CTT100862681, author = {Keisuke Hara and Takahiro Matsuda and Keisuke Tanaka}, title = {Receiver Selective Opening Chosen Ciphertext Secure Identity-Based Encryption}, booktitle = {Proceedings of the 8th ACM on ASIA Public-Key Cryptography Workshop}, year = 2021, } @inproceedings{CTT100863312, author = {Daiki Hiraga and Keisuke Hara and Masayuki Tezuka and Yusuke Yoshida and Keisuke Tanaka}, title = {Security Definitions on Time-Lock Puzzles}, booktitle = {Information Security and Cryptology – ICISC 2020}, year = 2021, } @inproceedings{CTT100863311, author = {Tasuku Narita and Fuyuki Kitagawa and Yusuke Yoshida and Keisuke Tanaka}, title = {Secret Sharing with Statistical Privacy and Computational Relaxed Non-malleability}, booktitle = {Information Security and Cryptology – ICISC 2020}, year = 2021, } @inproceedings{CTT100862683, author = {Maxim Jourenko and Mario Larangeira and Keisuke Tanaka}, title = {Payment Trees: Low Collateral Payments for Payment Channel Networks}, booktitle = {}, year = 2021, } @inproceedings{CTT100862698, author = {成田資 and 吉田雄祐 and 田中圭介}, title = {秘密分散における複数メッセージに対する緩和した改ざん耐性}, booktitle = {}, year = 2021, } @inproceedings{CTT100862696, author = {山室宏貴 and 原啓祐 and 手塚真徹 and 吉田雄祐 and 田中圭介}, title = {フォワード安全な認証付きコミッティング暗号}, booktitle = {}, year = 2021, } @inproceedings{CTT100862699, author = {数藤 恭平 and 手塚 真徹 and 原 啓祐 and 吉田 雄祐 and 田中 圭介}, title = {計算量的機能保存性をもつ電子透かし署名}, booktitle = {}, year = 2021, } @misc{CTT100869605, author = {小田拓也 and 梶川裕矢 and 田中圭介 and DefagoXavier and 奥村 悠太}, title = {ピアツーピア端末及び約定取引システム}, howpublished = {公開特許}, year = 2021, month = {}, note = {PCT/JP2020/003410(2020/01/30), WO 2021/152769(2021/08/05)} }