@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{CTT100863305,
  author = {Keisuke Hara and Keisuke Tanaka},
  title = {Tightly secure ring signatures in the standard model},
  journal = {Theoretical Computer Science},
  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{CTT100862650,
  author = {KEISUKE TANAKA and Keisuke Hara},
  title = {Ring Signature With Unconditional Anonymity in the Plain Model},
  journal = {IEEE Access},
  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{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,
}

@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,
}