@inproceedings{CTT100863314, author = {Yusuke Yoshida and Fuyuki Kitagawa and Keita Xagawa and Keisuke Tanaka}, title = {Non-committing Encryption with Constant Ciphertext Expansion from Standard Assumptions}, booktitle = {Advances in Cryptology – ASIACRYPT 2020}, year = 2020, } @inproceedings{CTT100749114, author = {KEISUKE TANAKA and Akinori Kawachi and Akira Numayama and Keita Xagawa}, title = {Security of Encryption Schemes in Weakened Random Oracle Models}, booktitle = {Public Key Cryptography}, year = 2010, } @inproceedings{CTT100749737, author = {田中圭介 and 河内 亮周 and 草川 恵太}, title = {ルジャンドル列の擬似乱数性と頑健な量子状態復号}, booktitle = {}, year = 2010, } @inproceedings{CTT100749723, author = {KEISUKE TANAKA and Keita Xagawa}, title = {Proxy Re-Encryption based on learning with Errors}, booktitle = {}, year = 2010, } @inproceedings{CTT100749715, author = {KEISUKE TANAKA and Damien Stehle and Ron Steinfeld and Keita Xagawa}, title = {Efficient Public Key Encryption Based on Ideal Lattices.}, booktitle = {}, year = 2009, } @inproceedings{CTT100749711, author = {KEISUKE TANAKA and Keita Xagawa}, title = {Zero-Knowledge Protocols for NTRU:Application to Identification and Proof of Plaintext Knowledge.}, booktitle = {}, year = 2009, } @inproceedings{CTT100572399, author = {田中圭介 and 河内亮周 and 沼山晃 and 草川恵太}, title = {近似サンプリング法の精度保証}, booktitle = {2009年 暗号とセキュリティシンポジウム}, year = 2009, } @inproceedings{CTT100572406, author = {KEISUKE TANAKA and AKINORI KAWACHI and Akira Numayama and Keita Xagawa}, title = {Security of the OAEP Encryption Scheme in the Weakened Random Oracle Models}, booktitle = {2009年 暗号と情報セキュリティシンポジウム}, year = 2009, } @inproceedings{CTT100572402, author = {田中圭介 and 草川恵太}, title = {イデアル版 LWE 仮定に基づく IND-CCA2 安全な暗号方式}, booktitle = {2009年 暗号と情報セキュリティシンポジウム}, year = 2009, } @inproceedings{CTT100572401, author = {田中圭介 and 草川恵太}, title = {NFALSE : 多項式環に基づくより高速な公開鍵暗号}, booktitle = {2009年 暗号と情報セキュリティシンポジウム}, year = 2009, } @inproceedings{CTT100572400, author = {田中圭介 and 草川恵太}, title = {NTRU 暗号に関するゼロ知識証明}, booktitle = {2009年 暗号とセキュリティシンポジウム}, year = 2009, } @inproceedings{CTT100591143, author = {AKINORI KAWACHI and KEISUKE TANAKA and Keita Xagawa}, title = {Concurrently Secure Identification Schemes Based on the Worst-Case Hardness of Lattice Problems}, booktitle = {Advances in Cryptology - Asiacrypt 2008 (ASIACRYPT 2008)}, year = 2008, } @inproceedings{CTT100591144, author = {Keita Xagawa and Keisuke Tanaka}, title = {A compact signature scheme with ideal lattice}, booktitle = {The First AAAC Annual Meeting (AAAC 2008)}, year = 2008, } @inproceedings{CTT100591145, author = {Keita Xagawa and Keisuke Tanaka}, title = {A Compact Signature Scheme with Ideal Lattice (Extended Abstract)}, booktitle = {Proceedings of the 2008 IEICE General Conference}, year = 2008, } @inproceedings{CTT100591142, author = {田中圭介 and 草川恵太 and 河内亮周}, title = {格子問題に基づく高い安全性をもつ認証方式}, booktitle = {2008年 暗号と情報セキュリティシンポジウム}, year = 2008, } @inproceedings{CTT100749738, author = {田中圭介 and 草川 恵太 and 河内 亮周}, title = {格子問題に基づくコンパクトな署名方式}, booktitle = {}, year = 2008, } @inproceedings{CTT100575597, author = {田中圭介 and 草川恵太}, title = {イデアル格子問題に基づくコンパクトな署名方式}, booktitle = {2008年 暗号と情報セキュリティシンポジウム}, year = 2008, } @inproceedings{CTT100553832, author = {AKINORI KAWACHI and KEISUKE TANAKA and Keita Xagawa}, title = {Multi-Bit Cryptosystems Based on Lattice Problems}, booktitle = {Public Key Cryptography - PKC 2007, 10th International Workshop on Practice and Theory in Public Key Cryptography, Lecture Notes in Computer Science 4450}, year = 2007, } @inproceedings{CTT100591146, author = {Keita Xagawa and AKINORI KAWACHI and Keisuke Tanaka}, title = {Multi-Bit Cryptosystems based on Lattice Problems}, booktitle = {2006年 暗号と情報セキュリティシンポジウム 予稿集}, year = 2006, }