2021/04-

Journals

1. Toru Fujiwara, Takuaya Kusaka,“The Weight Distributions of the (256, k) Extended Binary Primitive BCH Codes with k ≦ 71 and k ≧ 187,”IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E104-A, No.9, (2021-09 to appear).
2. Kazuki Iwahana, Tatsuya Takemura, Ju Chien Cheng, Nami Ashizawa, Naoki Umeda, Kodai Sato, Ryota Kawakami, Rei Shimizu, Yuichiro Chinen, Naoto Yanai, "MADMAX: Browser-Based Malicious Domain Detection through Extreme Learning Machine," IEEE Access, Vol.9, pp. 78293-78314, IEEE (2021-05).
3. Yang Chen, Nami Ashizawa, Chai Kiat Yeo, Naoto Yanai, Seanglidet Yean, "Multi-scale Self-Organizing Map assisted Deep Autoencoding Gaussian Mixture Model for unsupervised intruction detection," Knowledge-Based Systems, Volume 224, Article No. 107086, pp. 1-11, Elsevier (2021-07).
4. Naoto Yanai, Kazuki Iwahana, Tatsuya Takemura, Toshiki Shikata, and Hiromasa Kitai, "Studies on Model Protection for Machine Learning and Its Research Trends," IEICE Transactions on Communications, Vol. J104-B, No.10, pp.742-760 (2021-10).
5. Yuichiro Chinen, Naoto Yanai, Jason Paul Cruz, Shingo Okamura, "RA: A Static Analysis Tool for Analyzing Re-Entrancy Attacks in Ethereum Smart Contracts," Journal of Information Processing, Vol. 29, p.537-547 (2021-10).
6. Kazuki Iwahana, Naoto Yanai, Jason Paul Cruz, Toru Fujiwara, "SPGC: Integration of Secure Multiparty Computation and Differential Privacy for Gradient Computation on Collaborative Learning," Journal of Information Processing, Vol. 30, Pages 209-225 (2022-03).

International Conferences

1. Naoki Umeda, Naoto Yanai, Tatsuya Takemura, Masayuki Okada, Jason Paul Cruz and Shingo Okamura, "SQUAB: A Virtualized Infrastructure for Experiments on BGP and Its Extensions", The 35th International Conference on Advanced Information Networking and Applications (AINA 2021), Lecture Notes in Networks and Systems (LNNS), volume225, pp.600-613, Springer (2021-06).
2. Yohei Watanabe, Naoto Yanai and Junji Shikata, "Anonymous Broadcast Authentication for Securely Remote-Controlling IoT Devices", The 35th International Conference on Advanced Information Networking and Applications (AINA 2021), Lecture Notes in Networks and Systems(LNNS), volume225, pp.679-690, Springer (2021-06).
3. Tatsuya Takemura, , Naoto Yanai, Naoki Umeda, Masayuki Okada, Shingo Okamura, Jason Paul Cruz, "APVAS+: A Practical Extension of BGPsec with Low Memory Requirement", Proc. of 2021 IEEE International Conference on Communications (ICC 2021), pp. 1-7, IEEE (2021-06).
4. Nami Ashizawa, Naoto Yanai, Jason Paul Cruz, Singo Okamura, "Eth2Vec: Learning Contract-Wide Code Representations for Vulnerability Detection on Ethereum Smart Contracts", Proc. of The Third ACM International Symposium on Blockchain and Secure Critical Infrastructure (BSCI 2021), pp. 47–59, ACM (2021-06), Best Paper Award.
5. Kenji Yasunaga, "Replacing Probability Distributions in Security Games via Hellinger Distance," Proc. of the 2nd Conference on Information-Theoretic Cryptography (ITC 2021), No.17, pp.17:1-17:5 (2021-07).
6. Naoki Furuya,Norihisa Komoda, and Toru Fujiwara, "Improvement of Area Priority Setting of Sequential Processing Storage Location Recommendation Technology Considering Stock Storage Period." Internatinal Conference on Production Research (2021-07).
7. Kazuki Iwahana, Naoto Yanai, Jason Paul Cruz, Toru Fujiwara, "SPGC: An Integrated Framework of Secure Computation and Differential Privacy for Collaborative Learning", Proc. of the 16th DPM International Workshop on Data Privacy Management (DPM 2021), LNCS 13140, pp.89-105, Springer (2021-10).
8. Takumi Okano, Hideharu Kojima, Naoto Yanai and Tatsuhiro Tsuchiya, "Implementing Access Control in Chaincodes on Hyperledger Fabric with Attribute-Based Encryption", Proc. of the Third Workshop on Blockchain-based Architectures (BlockArch 2022) (2022-03).

Misc

1. Masataka Tasumi, Kazuki Iwahana, Naoto Yanai, Katsunari Shishido, Toshiya Shimizu, Yuji Higuchi, Ikuya Morikawa, Jun Yajima, "First to Possess His Statistics: Data-Free Model Extraction Attack on Tabular Data," (2021-09). arXiv. (https://arxiv.org/abs/2109.14857)

2020/04-

Journals

1. 藤原 貴之, 土屋 慎太郎, 薦田 憲久, 藤原 融,“3次元CGを活用した保守作業技術学習コンテンツ編集支援ツール,”情報処理学会論文誌, Vol.61, No.4, pp.996-1005 (2020-04).
2. Yasunori Ishihara, Takashi Hayata, Toru Fujiwara "The Absolute Consistency Problem for Relational Schema Mappings with Functional Dependencies," IEICE Transactions on Information and Systems, Vol.E103-D, No.11, pp.2278-2288 (2020-11).
3. Tatsuya Takemura, Naoto Yanai, Toru Fujiwara "Model Extraction Attacks against Recurrent Neural Networks", Journal of Information Processing, Vol.28, No.12 (2020-12). pp.1010-1024(2020-12)
4. Naohisa Nishida, Tatsumi Oba, Yuji Unagami, Jason Paul Cruz, Naoto Yanai, Tadanori Teruya, Nuttapong Attrapadung, Takahiro Matsuda, Goichiro Hanaoka, “Efficient Secure Neural Network Prediction Protocol Reducing Accuracy Degradation”, IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E103-A, No.12, pp.1367-1380 (2020-12).
5. 木下 順史, 薦田 憲久, 藤原 融,“ベアメタルサービスのためのVXLANオーバーコミット方式,”情報処理学会論文誌, Vol.62, No.1, pp.321-331 (2021-01).
6. Tomohiro Hayashi and Kenji Yasunaga, "On the list decodability of insertions and deletions," IEEE Transactions on Information Theory, Vol.66, No.9, pp.5335-5343 (2020-09).
7. Kenji Yasunaga, "Practical Card-Based Protocol for Three-Input Majority," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E103-A, No.11, pp.1296–1298 (2020-11).

International Conferences

1. Hideharu Kojima, Naoto Yanai, “A Model Checking Method for Secure Routing Protocols by SPIN with State Space Reduction”, Proc. of 2020 IEEE International Parallel and Distributed Processing Symposium Workshops (IPDPSW), pp. 627-635, IEEE (2020-05).
2. Kodai Sato, Kenji Yasunaga and Toru Fujiwara, "A Construction of Robustly Reusable Fuzzy Extractors over Blockchains", Proc. of The 30th International Symposium on Information Theory and Its Applications (ISITA 2020), IEEE (2020-10).
3. Yuichiro Chinen, Naoto Yanai, Jason Paul Cruz, Shingo Okamura, "RA: Hunting for Re-Entrancy Attacks in Ethereum Smart Contracts via Static Analysis", Proc. of the 3rd IEEE International Conference on Blockchain (Blockcha2020), pp. 327-336, IEEE (2020-11).
4. Hideki Okita, Hayato Hoshihara, Norihisa Komoda, Toru Fujiwara,"Dynamically Prioritized Virtual-Network Monitoring according to Lifecycle of Virtual Machines in Large Scale Data Center,"Proceedings of 19th International Conference on WWW/Internet, pp.123-131 (2020-11), Best Paper Award.
5. Yang Chen, Nami Ashizawa, Seanglidet Yean, Chai Kiat Yeo, Naoto Yanai, "Self-Organizing Map assisted Deep Autoencoding Gaussian Mixture Model for Intrusion Detection", Proc. of IEEE Consumer Communications and Networking Conference (CCNC) 2021, IEEE (2021-01). (To appear.)

Misc

1. Ouyang Junjie, Naoto Yanai, Tatsuya Takemura, Masayuki Okada, Shingo Okamura, Jason Paul Cruz, "APVAS: Reducing Memory Size of AS_PATH Validation by Using Aggregate Signatures" (2020-08). arXiv. (https://arxiv.org/abs/2008.13346)
2. Yang Chen, Nami Ashizawa, Seanglidet Yean, Chai Kiat Yeo, Naoto Yanai, "Self-Organizing Map assisted Deep Autoencoding Gaussian Mixture Model for Intrusion Detection" (2020-8). arXiv. (https://arxiv.org/abs/2008.12686)
3. Nami Ashizawa, Naoto Yanai, Jason Paul Cruz, Shingo Okamura, “Eth2Vec: Learning Contract-Wide Code Representations for Vulnerability Detection on Ethereum Smart Contracts”, (2021-01). arXiv. (https://arxiv.org/abs/2101.02377)

2019/04-

Journals

1. Hideharu Kojima, Naoto Yanai, Jason Paul Cruz, “ISDSR+: Improving the Security and Availability of Secure Routing Protocol”, IEEE Access, Vol.7, pp.74849-74868 (2019-06).
2. 平島 陽子, 薦田 憲久, 藤原 融,“統合モビリティサービスの実現に向けたスキーママッチング手法の提案,”電気学会論文誌C,Vol. 139, No. 6, pp. 686-691(2019-06),【翻訳版：Yoko Hirashima, Norihisa Komoda, Toru Fujiwara;"A schema matching approach for integrated mobility service,"Electronics and Communications in Japan, Vol.102, Issue 9, pp.12-18 (2019.9) 】.
3. Shimamoto Hayato, Naoto Yanai, Shingo Okamura, Jason Paul Cruz, Shouei Ou, Takao Okubo, “Towards Further Formal Foundation of Web Security: Expression of Temporal Logic in Alloy and Its Application to A Security Model with Cache”, IEEE Access, Vol.7, pp.74941-74960 (2019-06).
4. Hiromasa Kitai, Jason Paul Cruz, Naoto Yanai, Naohisa Nishida, Tatsumi Oba, Yuji Unagami, Tadanori Teruya,Nuttapong Attrapadung, Takahiro Matsuda, Goichiro Hanaoka, “MOBIUS: Model-Oblivious Binarized Neural Networks”, IEEE Access, Vol.7, pp.139021-139034 (2019-09).
5. Kenji Yasunaga,"Error correction by structural simplicity: correcting samplable additive errors," The Computer Journal, Vol.62, No.9, pp.1265–1276, (2019-09).
6. 弓部 良樹，薦田 憲久，藤原 融，“位置情報の測位誤差を考慮したロケーションベース電柱特定法,”電気学会論文誌C,Vol. 139, No. 10, pp. 1215-1221(2019-10).
7. 弓部 良樹，吉村 拓真, 浅野　愛治, 薦田 憲久，藤原 融，“ARを用いた配電設備の巡視作業支援システムの開発と評価,”電気学会論文誌C,Vol. 139, No. 11, pp. 1333-1340 (2019-11), 電気学会電気学術振興賞論文賞 (2020-06).
8. Masahiro Kamimura, Naoto Yanai, Shingo Okamura, Jason Paul Cruz, “Key-Aggregate Searchable Encryption, Revisited: Formal Foundations for Cloud Applications,and Their Implementation”, IEEE Access, Vol. 8, pp.24153-24169 (2020-01).

International Conferences

1. Shinnosuke Shimizu, Hideharu Kojima, Naoto Yanai, Tatsuhiro Tuchiya,"Implementation and Evaluation of ISDSR in Emulation Environments",Proc. of the IEEE Wireless Communications and Networking Conference(WCNC) 2019,IEEE (2019-04)
2. Takayuki Fujiwara, Shintaro Tsuchiya, Norihisa Komoda, and Toru Fujiwara, “A Fitness Bike Maintenance System with Three-Dimensional Computer Graphics”, 12th International Conference ICT, Society, and Human Beings 2019 (2019-07).
3. Hideharu Kojima, Naoto Yanai, "A Chain Code Mechanism with Data Encryption on Hyperledger Fabric", The 24th European Symposium on Research in Computer Security (ESORICS 2019), Poster (2019-09).
4. Yoshiki Yumbe, Norihisa Komoda, and Toru Fujiwara, “Workforce scheduling system to manage static optimization and dynamic re-optimization for field service”, IEEE International Conference on Systems, Man, and Cybernetics, pp.3122-3127, (2019-10).
5. Kenji Yasunaga and Takeshi Koshiba, "Perfectly secure message transmission against independent rational adversaries,"In Proceedings of the 10th Conference on Decision and Game Theory for Security (GameSec 2019), LNCS 11836, pp.563–582, (2019-10).
6. Hideharu Kojima, Naoto Yanai, “A State Space Suppression Method for Formal Verification of Secure Routing Protocols with SPIN”, the 30th International Symposium on Software Reliability Engineering (ISSRE 2019), IEEE, Fast Abstract (2019-10).
7. Hideharu Kojima, Naoto Yanai, “A State Space Reduction Method for Model Checking of Wireless Multi-hop Network Routing Protocols Focusing on Topologies”, The Seventh International Symposium on Computing and Networking workshop (CANDAR 2019), IEEE (2019-11).
8. Mio Saiki, Hideharu Kojima, Naoto Yanai, Tatsuhiro Tsuchiya, "A Chaincode with Attribute-Based Encryption for Protecting Data in Ledgers", The Network and Distributed System Security Symposium (NDSS) 2020, poster (2020-02).
9. Ryota Kawakami, Atsuo Inomata, Naoto Yanai, Toru Fujiwara, "Wireless Access Point Spoofing by Unmanned Aerial Vehicles (UAVs)", The Network and Distributed System Security Symposium (NDSS) 2020, poster (2020-02).
10. Yoshiyuki Kido, Nelson Pinto Tou, Naoto Yanai, Shinji Shimojo, “sD&D: Design and Implementation of Cybersecurity Educational Game with Highly Extensible Functionality”, The 2020 Future of Information and Communications Conference (FICC2020), AISC 1129, pages 857-873 (2020-03).

2018/04-

Journals

1. Naoto Yanai, "Meeting Tight Security for Multisignatures in the Plain Public Key Model", IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E101-A,No.9, pp.1484-1493(2018-09)
2. Seunghoan Song, Toru Fujiwara, “Sphere Packing Bound and Gilbert-Varshamov Bound for b-Symbol Read Channels”, IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E101-A, No.11, pp.1915-1924 (2018-11).
3. Maki Yoshida, Toru Fujiwara, “Optimal Uniform Secret Sharing”, IEEE Transactions on Information Theory, Vol.65, No.1, pp.436-443 (2019-01).

International Conferences

1. Naoto Yanai, Jason Paul Cruz, "On Security of Anonymous Invitation-Based System" . Proc. of the 13th DPM International Workshop on Data Privacy Management (DPM 2018), LNCS 11025, pp.415-421 (2018-09).
2. Maiki Fujita, Kenji Yasunaga, and Takeshi Koshiba, "Perfectly secure message transmission against rational timid adversaries,"Proceedings of the 9th Conference on Decision and Game Theory for Security (GameSec 2018), LNCS, 11199, pp.127-144, (2018-10).
3. Eriko Ando, Takashi Kawauchi, Norihisa Komoda, Toru Fujiwara,“Security Risk Assesssment Supporting System in Connected Car Systems”, Proceedings of the 15th International Conference on Applied Computing, pp.389-394 (2018-11).
4. Takahiro Higuchi,Naoto Yanai,Kensuke Ueda,Yasunori Ishihara,Toru Fujiwara, "A Privacy Risk Arising from Communication with TV: Consideration from Attribute Inference for Users", The Network and Distributed System Security Symposium (NDSS) 2019, poster (2019-02)

2017/04-

Journals

1. Naoto Yanai, Tomoya Iwasaki, Masaki Inamura, Keiichi Iwamura, “Provably Secure Structured Signature Schemes with Tighter Reductions”, "IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E100-A, No.9, pp.1870-1881 (2017-9).
2. Yukou Kobayashi, Naoto Yanai, Kazuki Yoneyama, Takashi Nishide, Goichiro Hanaoka, Kwangjo Kim, Eiji Okamoto, “Password-based Authenticated Key Exchange with a Gateway via Multiple Authentication Servers”, IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E100-A, No.12, pp.2991-3006 (2017-12).
3. Naoto Yanai, Toru Fujiwara, “Tighter Reductions for Deterministic Identity-Based Signatures”, IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E101-A, No.1, pp.64-76 (2018-01).
4. Thi Ngoc Diep Pham, Chai Kiat Yeo, Naoto Yanai, Toru Fujiwara, “Detecting Flooding Attack and Accommodating Burst Traffic in Delay Tolerant Networks”, IEEE Transactions on Vehicular Technology, Vol.67, No.1, pp.795-808 (2018-01).
5. Jason Paul Cruz, Yuichi Kaji, Naoto Yanai, “RBAC-SC: Role-based Access Control using Smart Contract”, IEEE Access, Vol.6, pp.12240-12251(2018-03).

International Conferences

1. Takashi Hayata, Yasunori Ishihara, and Toru Fujiwara, “The Absolute Consistency Problem of Graph Schema Mappings with Uniqueness Constraints,” Proceedings of the 9th International Conference on Advances in Databases, Knowledge, and Data Applications, pp. 103-110 (2017-05).
2. Naoto Yanai, “Tightly Secure Identity-Based Multisignatures,” 2017 IEEE International Conference on Consumer Electronics – Taiwan (ICCE-TW 2017), pp.253-254, IEEE (2017-06).
3. Hiroyuki Kato, Yasunori Ishihara and Torsten Grust, “DDO-Free XQuery,” Proceedings of the 16th International Symposium on Database Programming Languages (2017-09) (accepted).
4. Yuuji Furuta, Naoto Yanai, Masashi Karasaki, Katsuhiko Eguchi, Yasunori Ishihara, Toru Fujiwara, “Towards Efficient and Secure Encrypted Databases: Extending Message-Locked Encryption in Three-Party Model,” Proc. of the 12th International Workshop on Data Privacy Management (DPM 2017), co-located in ESORICS 2017, LNCS 10436, pp.55-69, Springer (2017-09).
5. Hideharu Kojima, Naoto Yanai, “Performance Evaluation for The Signature Algorithm of ISDSR on Raspberry Pi”, Proc. of 10th International Workshop on Autonomous Self-Organizing Networks (ASON 2017), co-located in The Fifth International Symposium on Computing and Networking (CANDAR 2017), IEEE (2017-11) (accepted).
6. Nobuaki Kitajima, Naoto Yanai, Takashi Nishide, “Identity-Based Key-Insulated Aggregate Signatures, Revisited”, Proc. of The 13th International Conference on Information Security and Cryptology (Inscrypt 2017), LNCS 10726, pp.141-156, Springer (2017-11).

2016/04-

Journals

1. 杉村 憲司, 石原 靖哲, 藤原 融, “XPath充足可能性を判定する多項式時間アルゴリズムの提案と評価,” 情報処理学会論文誌, Vol. 57, No. 5, pp. 1477-1488 (2016-05), 情報処理学会2016年度論文賞 (2017-06).
2. Maki Yoshida and Toru Fujiwara, “Efficient Usage of Cover Free Families in Broadcast Encryption,” IEICE Transactions on Fundamentals, Vol.E99-A, No.6, pp.1216-1221 (2016-06).
3. Hikaru Kishimoto, Naoto Yanai, Shingo Okamura, “SPaCIS: Secure Payment Protocol for Charging Information over Smart Grid”, Journal of Information Processing, Vol.25, No.1, pp12-21 (2017-01).
4. 田中 和磨, 矢内 直人, 岡田 雅之, 西出 隆志, 岡本栄司, "APAT: BGPSEC におけるアグリゲート署名の導入," 情報処理学会論文誌, Vol.58, No.2, pp.544-556 (2017-02).

International Conferences

1. Kazuma Tanaka, Naoto Yanai, Masayuki Okada, Takashi Nishide, Eiji Okamoto, "APAT: An Application of Aggregate Signatures to BGPSEC," The 46th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN 2016), Fast Abstract (2016-06).
2. Kenta Muranaka, Naoto Yanai, Shingo Okamura, Toru Fujiwara, "ISDSR : Secure DSR with ID-based Sequential Aggregate Signature," Proc. of the 13th International Joint Conference on e-business and Telecommunications (ICETE 2016), Vol. 4, SECRYPT, pp. 376-387 (2016-07).
3. Yudai Nagamine, Naoto Yanai, Shingo Okamura, Toru Fujiwara, "Malware for Protocol Misidentification," The 11th International Workshop on Security (IWSEC2016), poster (2016-09).
4. Kento Takahashi and Yasunori Ishihara, "Formalizations of secrecy of encrypted databases against realistic attackers," Proc. of International Symposium on Information Theory and its Application (ISITA) (2016-11).
5. Hayato Shimamoto, Naoto Yanai, Shingo Okamura, Toru Fujiwara, “Web Security Model with Cache,” Proc. of International Symposium on Information Theory and its Application (ISITA) (2016-11).
6. Ryo Fukuyama, Naoto Yanai, Shingo Okamura, Toru Fujiwara, “Towards a Formal Foundation of Protection against Data-Oriented Attacks,” Proc. of International Symposium on Information Theory and its Application (ISITA) (2016-11).
7. Naoto Yanai, "Towards Provable Security of Dynamic Source Routing Protocol and Its Applications," Proc. of ER 2016 Workshops, AHA, MoBiD, MORE-BI, MReBA, QMMQ, SCME, and WM2SP, LNCS 9975, pp.231-239 (2016-11).
8. Naoto Yanai, “On the Tightness of Deterministic Identity-Based Signatures”, Proc. of The Fourth International Symposium on Computing and Networking (CANDAR 2016), pp.168-173 (2016-11).
9. Hikaru Kishimoto, Naoto Yanai, Shingo Okamura, “An Anonymous Authentication Protocol for Smart Grid,” Proc. of the 31st International Conference on Advanced Information Networking and Applications Workshops (WAINA 2017), pp.62-67, IEEE (2017-03).

2015/04-

Journals

1. Hiroyuki Kato, Soichiro Hidaka, Zhenjiang Hu, Keisuke Nakano and Yasunori Ishihara, "Context-Preserving XQuery Fusion," Mathematical Structures in Computer Science, Vol.25, No.4, pp.916-941 (2015-05).
2. Yasunori Ishihara, Yasuhiro Ushirozako, Kengo Mori and Jun Furukawa, "A Secrecy Criterion for Outsourcing Encrypted Databases Based on Inference Analysis," IEICE Transactions on Information and Systems, Vol.E98-D, No.6, pp.1161-1165 (2015-06).
3. Hayato Kuwada, Kenji Hashimoto, Yasunori Ishihara and Toru Fujiwara, "The Consistency and Absolute Consistency Problems of XML Schema Mappings between Restricted DTDs," World Wide Web Journal, Vol.18, Issue 5, pp.1443-1461 (2015-09).
4. Nobuaki Kitajima, Naoto Yanai, Takashi Nishide, Goichiro Hanaoka, Eji Okamoto, "Fail-Stop Signatures for Multiple-Signers: Definitions, Constructions, and Their Extensions," Journal of Information Processing, Vol.24, No.2, pp. 275-291 (2016-02).
5. Kenji Hashimoto, Ryuta Sawada, Yasunori Ishihara, Hiroyuki Seki and Toru Fujiwara, "Determinacy and Subsumption of Single-valued Bottom-up Tree Transducers," IEICE Transactions on Information and Systems, Vol.E99-D, No.3, pp.575-587 (2016-03).

International Conferences

1. Nobuaki Kitajima, Naoto Yanai, Takashi Nishide, Goichiro Hanaoka and Eiji Okamoto, "Constructions of Fail-Stop Signatures for Multi-Signer Setting", Proc. of the 10th Asia Joint Conference on Information Security (AsiaJCIS 2015), pp.112-123 (2015-5).
2. Yukou Kobayashi, Naoto Yanai, Kazuki Yoneyama, Takashi Nishide, Goichiro Hanaoka, Kwangjo Kim, Eiji Okamoto, "Gateway Threshold Password-based Authenticated Key Exchange Secure against Undetectable On-line Dictionary Attack", Proc. of the 12th International Conference on Security and Cryptography (SECRYPT 2015), pp.39-52 (2015-7).
3. Kenta Muranaka, Naoto Yanai, Shingo Okamura and Toru Fujiwara, "Secure Routing Protocols for Sensor Networks: Construction with Signature Schemes for Multiple Signers", Proc. of The 14th IEEE International Conference on Trust, Security and Privacy in Computing and Communications (IEEE TrustCom 2015), pp.1329--1336 (2015-8).
4. Kenta Muranaka, Naoto Yanai, Shingo Okamura, Toru Fujiwara, "Toward Secure Routing Protocols for Sensor Networks," The 10th International Workshop on Security (IWSEC2015), poster (2015-8).
5. Hikaru Kishimoto, Shingo Okamura, Naoto Yanai, "Secure Payment Protocol for Charging Information over SmartGrid," The 10th International Workshop on Security (IWSEC2015), poster (2015-8).
6. Yuma Higashiyama, Naoto Yanai, Shingo Okamura and Toru Fujiwara, "Revisiting Authentication with Shoulder-Surfing Resistance for Smartphones," The Third International Symposium on Computing and Networking (CANDAR 2015), pp.89-95 (2015-12)
7. Naoto Yanai, Masahiro Mambo, Kazuma Tanaka, Takashi Nishide, Eiji Okamoto, "Another Look at Aggregate Signatures: Their Capability and Security on Network Graphs," Proc. of The Seventh International Conference on Trusted Systems (INTRUST 2015), LNCS 9565, pp.30-46 (2016-03).
8. Tomoya Iwasaki, Naoto Yanai, Masaki Inamura, Keiichi Iwamura, "Tightly-Secure Identity-Based Structured Aggregate Signature Scheme under the computational Diffie-Hellman Assumption," Proc. of The 30th IEEE International Conference on Advanced Information Networking and Applications (AINA-2016), pp.669-676 (2016-03).

2014/04-

Journals

1. Maki Yoshida, Kazuya Ohkita and Toru Fujiwara, "Individual Restoration of Tampered Pixels for Statistical Fragile Watermarking," IEICE Transactions on Information and Systems, Vol.E98-D, No.1, pp.58-64 (2015-01).
2. Maki Yoshida and Toru Fujiwara, "On the Impossibility of d-Multiplicative Non-perfect Secret Sharing," IEICE Transactions on Fundamentals, Vol.E98-A, No.2, pp.767-770 (2015-02).

International Conferences

1. Hironobu Tozuka, Maki Yoshida, Toru Fujiwara, "Salt-and-Pepper Image Watermarking System for IHC Evaluation Criteria," Proceedings of the 1st international workshop on Information hiding and its criteria for evaluation (IWIHC 2014), pp.31-36 (2014-06).
2. Yasunori Ishihara, Hayato Kuwada and Toru Fujiwara, "The Absolute Consistency Problem of XML Schema Mappings with Data Values between Restricted DTDs," Proceedings of the 25th International Conference on Database and Expert Systems Applications, Lecture Notes in Computer Science 8644, pp. 317-327 (2014-09).
3. Naoto YANAI, Masahiro MAMBO, and Eiji OKAMOTO, “A CDH-Ordered Multisignature Scheme in the Standard Model with Better Efficiency,” Proc. of International Symposium on Information Theory and its Application (ISITA) 2014, pp.236-240 (2014-10).

2013/04-

International Conferences

1. Kenji Hashimoto, Ryuta Sawada, Yasunori Ishihara, Hiroyuki Seki and Toru Fujiwara, "Determinacy and Subsumption for Single-valued Bottom-up Tree Transducers," Proceedings of the 7th International Conference on Language and Automata Theory and Applications, Lecture Notes in Computer Science 7810, pp.335-346 (2013-04).
2. Hayato Kuwada, Kenji Hashimoto, Yasunori Ishihara and Toru Fujiwara, "The Consistency and Absolute Consistency Problems of XML Schema Mappings between Restricted DTDs," Proceedings of the 15th International Asia-Pacific Web Conference, Lecture Notes in Computer Science 7808, pp.228-239 (2013-04).
3. Nobuaki Yamazoe, Kenji Hashimoto, Yasunori Ishihara and Toru Fujiwara, "Decidability of k-secrecy against Inference Attacks Using Functional Dependencies on XML Databases," Proceedings of the 2013 International Conference on Parallel and Distributed Processing Techniques and Applications, pp.182-188 (2013-07).
4. Yasunori Ishihara, Nobutaka Suzuki, Kenji Hashimoto, Shogo Shimizu and Toru Fujiwara, "XPath Satisfiability with Parent Axes or Qualifiers Is Tractable under Many of Real-World DTDs," Proceedings of the 14th International Symposium on Database Programming Languages, http://arxiv.org/abs/1308.0769 (2013-08).
5. Ryo Iwase, Yasunori Ishihara and Toru Fujiwara, "Toward Security Verification against Inference Attacks on Data Trees," 2nd International Workshop on Trends in Tree Automata and Tree Transducers, pp.49-59, http://dx.doi.org/10.4204/EPTCS.134.6 (2013-10).

2012/04-

Journals

1. Takuya Kusaka, Ryuhei Yokoyama and Toru Fujiwara, "A Recursive Method on Vector Generation in non-Increasing Order of its Likelihood for all Binary Vectors and its Application for Linear Block Code," IEICE Transactions on Fundamentals, Vol.E95-A, No.4, pp.801-810 (2012-04).
2. Kenji Hashimoto, Hiroto Kawai, Yasunori Ishihara and Toru Fujiwara, "Decidability of the Security against Inference Attacks using a Functional Dependency on XML Databases," IEICE Transactions on Information and Systems, Vol.E95-D, No.5, pp.1365-1374 (2012-05).

International Conferences

1. Maki Yoshida, Toru Fujiwara, and Marc P.C. Fossorier, "Optimum General Threshold Secret Sharing," the 6th International Conference on Information Theoretic Security (ICITS2012), LNCS 7412, pp.187--204 (2012-08).
2. Takuya Kusaka, Ryuhei Yokoyama, and Toru Fujiwara, "Soft-Decision Sphere Decoding based on the Recursive Vector Generator," 2012 International Symposium on Information Theory and its Applications (ISITA2012), pp.111-115 (2012-10).
3. Seigo Ikeda, Maki Yoshida, and Toru Fujiwara, "New Hybrid Additive-Multiplicative Watermarking with Better Tradeoff between Image Quality and Detection Accuracy," 2012 International Symposium on Information Theory and its Applications (ISITA2012), pp.797-801 (2012-10).
4. Yasunori Ishihara, Kenji Hashimoto, Shogo Shimizu and Toru Fujiwara, "XPath Satisfiability with Downward and Sibling Axes Is Tractable under Most of Real-world DTDs," Proceedings of the 12th International Workshop on Web Information and Data Management, pp.11-18 (2012-11).
5. Itsuki Suzuki, Maki Yoshida, and Toru Fujiwara, "Generic Construction of GUC Secure Commitment in the KRK Model," the 7th International Workshop on Security (IWSEC2012), accepted (2012-11).
6. Yasunori Ishihara, Kenji Hashimoto, Atsushi Ohno, Takuji Morimoto and Toru Fujiwara, "Typing XPath Subexpressions With Respect to an XML Schema," Proceedings of the 5th International Conference on Advances in Databases, Knowledge, and Data Applications, pp.128-133 (2013-01).

2011/04-

International Conferences

1. Kenji Hashimoto, Yohei Kusunoki, Yasunori Ishihara and Toru Fujiwara, "Validity of Positive XPath Queries with Wildcard in the Presence of DTDs," The 13th International Symposium on Database Programming Languages, http://www.cs.cornell.edu/conferences/dbpl2011/papers/dbpl11-hashimoto.pdf (2011-08).

2010/04-

Journals

1. Kenji Yasunaga and Toru Fujiwara, "On Correctable Errors of Binary Linear Codes," IEEE Transactions on Information Theory, Vol.56, No.6, pp.2537-2548 (2010-06).
2. 山中 広明, 岡村 真吾, 藤原 融, 吉田 真紀, 石原 靖哲, 秋山 豊和, 加藤 精一, 下條 真司, "評価者間類似度計算の改善による汚染コンテンツダウンロード抑制効果向上," 情報処理学会論文誌, Vol.51, No.8, pp.1428-1442 (2010-08).
3. Maki Yoshida and Toru Fujiwara, "Toward Digital Watermarking for Cryptographic Data," IEICE Transactions on Fundamentals, Vol.E94-A, No.1, pp.270-272 (2011-01).

International Conferences

1. Maki Yoshida and Toru Fujiwara, "All-or-nothing Property for Efficient Symbolic Analysis," Computational and Symbolic Proofs of Security (2010-04).
2. Hiroaki Yamanaka, Shingo Okamura, and Toru Fujiwara, "A Metric of Search Efficiency and Preventability of Polluted Contents for Unstructured Overlay," 2010 the 10th Annual International Symposium on Applications and the Internet (SAINT 2010), Student Session, pp.181-184 (2010-07).
3. Yasunori Ishihara, Shogo Shimizu and Toru Fujiwara, "Extending the Tractability Results on XPath Satisfiability with Sibling Axes," Proceedings of the 7th International XML Database Symposium, Lecture Notes in Computer Science 6309, pp.33-47 (2010-09).
4. Tetsushi Masuno, Takuya Kusaka, Toru Fujiwara, "A New Method to Reduce the Probability of Detection Errors for a Digital Watermark Using Complementary Decoding Algorithms and Minimum Weight Codewords of Linear Code," 2010 International Symposium on Information Theory and Its Applications (2010-10).
5. Ryuhei Yokoyama, Takuya Kusaka, Toru Fujiwara, "Adaptive Recursive MLD Using Ordered Statistics for Low Rate Codes," 2010 International Symposium on Information Theory and Its Applications (2010-10).
6. Hiroyuki Kato, Soichiro Hidaka, Zhenjiang Hu, Keisuke Nakano and Yasunori Ishihara, "Context-Preserving XQuery Fusion," Proceedings of the 8th Asian Symposium on Programming Languages and Systems, Lecture Notes in Computer Science 6461, pp.255-270 (2010-11).

2009/04-

Journals

1. Kenji Hashimoto, Kimihide Sakano, Fumikazu Takasuka, Yasunori Ishihara and Toru Fujiwara, "Verification of the Security against Inference Attacks on XML Databases," IEICE Transactions on Information and Systems, Vol.E92-D, No.5, pp.1022-1032 (2009-05).
2. Maki Yoshida, Shigeo Mitsunari, and Toru Fujiwara, "The Vector Decomposition Problem," IEICE Transactions on Fundamentals, Vol.E93-A, No.1, pp.188-193 (2010-01), 電子情報通信学会第67回論文賞 (2011-05).
3. Maki Yoshida and Toru Fujiwara, "Expiration Dated Fingerprinting," International Journal of Innovative Computing, Information and Control (IJICIC), Vol.6, No.3, pp.1271-1278 (2010-03).
4. 鈴木 斎輝, 吉田 真紀, 藤原 融, "公理的安全性の枠組みにおける汎用的結合可能な相互認証と鍵交換の記号的安全性," 日本応用数理学会論文誌, 第20巻, 第1号, pp.11-32 (2010-03).

International Conferences

1. Itsuki Suzuki, Yoshiki Kamano, Maki Yoshida, and Toru Fujiwara, "Development of a Verification Tool for Composable Security," Computational and Symbolic Proofs of Security, 2009.
2. Maki Yoshida and Toru Fujiwara, "Watermarking Cryptographic Data," the Fifth International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2009), A02-02, 2009.
3. Kazuya Ohkita, Maki Yoshida, Itaru Kitamura, and Toru Fujiwara, "Improving Capability of Locating Tampered Pixels of Statistical Fragile Watermarking," the 8th International Workshop on Digital Watermarking (IWDW 2009), LNCS Vol.5703, pp.279-293, 2009.
4. Yasunori Ishihara, Takuji Morimoto, Shougo Shimizu, Kenji Hashimoto and Toru Fujiwara, "A Tractable Subclass of DTDs for XPath Satisfiability with Sibling Axes," Proceedings of the 12th International Symposium on Database Programming Languages, Lecture Notes in Computer Science 5708, pp.68-83 (2009-08).

2008/04-

Journals

1. Akinari Yamaguchi, Shougo Shimizu, Yasunori Ishihara and Toru Fujiwara, "Bag-based Data Models for Incomplete Information and Their Closure Properties," Journal of Intelligent Information Systems, Vol.30, No.2, pp.115-135 (2008-04).
2. 北村 至, 吉田 真紀, 藤原 融, "画素空間へのパッチワーク法と相関型電子透かし法の検出誤り確率の比較," 電子情報通信学会論文誌(D), Vol.J91-D, No.11, pp.2605-2615 (2008-11).
3. Maki Yoshida and Toru Fujiwara, "Flexible Timed-release Encryption," IEICE Transactions on Fundamentals, Vol.E92-A, No.1, pp.222-225 (2009-01).

International Conferences

1. Kenji Hashimoto, Fumikazu Takasuka, Kimihide Sakano, Yasunori Ishihara and Toru Fujiwara, "Verification of the Security against Inference Attacks on XML Databases," Proceedings of the 10th Asia Pacific Web Conference, Lecture Notes in Computer Science, Springer-Verlag, Vol.4976, pp.359-370 (2008-04).
2. Kenji Yasunaga and Toru Fujiwara, "Uncorrectable Errors of Weight Half the Minimum Distance for Binary Linear Block Codes," Proceedings of the 2008 IEEE International Symposium on Information Theory (ISIT2007), Toronto, Canada, CD-ROM (2008-07).
3. Maki Yoshida and Toru Fujiwara, "Expiration-dated Fingerprinting," Proceedings of the Third International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2008), pp.147-150 (2008-08).
4. Mohamed Layouni, Maki Yoshida, and Shingo Okamura, "Efficient Multi-Authorizer Accredited Symmetrically Private Information Retrieval," Proceedings of the 10th International Conference on Information and Communications Security (ICICS2008), LNCS 5308, pp.387-402 (2008-10).
5. Kazuhiro Haramura, Maki Yoshida, and Toru Fujiwara, "Anonymous Fingerprinting for Predelivery of Contents," Proceedings of the 11th International Conference on Information Security and Cryptography (ICISC2008), LNCS, to appear (2008-10).
6. Hiroyuki Kato, Soichiro Hidaka, Zhenjiang Hu, Yasunori Ishihara, and Keisuke Nakano, "Rewriting XQuery to Avoid Redundant Expressions based on Static Emulation of XML Store," Programming Language Techniques for XML, An ACM SIGPLAN Workshop co-located with POPL 2009, http://db.ucsd.edu/planx2009/camera-ready/unpaginated/16.pdf (2009-01).

2007/04-

Journals

1. 橋本 健二, 石原 靖哲, 藤原 融, "XMLデータベースにおけるスキーマ進化のための更新操作群と それらのスキーマ表現能力保存に関する性質," 電子情報通信学会論文誌(D), Vol.J90-D, No.4, pp.990-1004 (2007-04).
2. Yasunori Ishihara, Toshiyuki Morita, Hiroyuki Seki and Minoru Ito, "An Equational Logic Based Approach to the Security Problem against Inference Attacks on Object-Oriented Databases," Journal of Computer and System Sciences, Vol.73, No.5, pp.788-817 (2007-08).

International Conferences

1. Maki Yoshida and Toru Fujiwara, "Secure Construction for Nonlinear Function Threshold Ramp Secret Sharing," Proceedings of the 2007 IEEE International Symposium on Information Theory (ISIT2007), Nice, France, CD-ROM (2007-07).
2. Maki Yoshida, Itaru Kitamura, and Toru Fujiwara, "A New Scheme for Optimum Decoding of Additive Watermarks Embedded in Spatial Domain," Proceedings of the Third International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2007), to appear (2007-11).
3. Kenji Yasunaga and Toru Fujiwara, "Correctable errors of weight half the minimum distance plus one for the first-order Reed-Muller codes," Proceedings of The 17th Symposium on Applied Algebra, Algebraic Algorithms, and Error Correcting Codes (AAECC-17), Lecture Notes in Computer Science, Springer-Verlag, Vol.4581, pp.110-119 (2007-12).
4. Maki Yoshida and Toru Fujiwara, "Global Timed-release Encryption," Proceedings of the 26th IEEE International Conference on Consumer Electronics (ICCE 2008), CD-ROM (2008-01).

2006/04-

Journals

1. 高須賀 史和, 橋本 健二, 石原 靖哲, 藤原 融, "XMLデータベースへの推論攻撃による機密情報特定可能性の形式化と ある前提条件のもとでの特定可能性検証法の提案," 日本データベース学会Letters, Vol.5, No.2, pp.21-24 (2006-09).
2. Kenji Yasunaga and Toru Fujiwara, "Determination of the Local Weight Distribution of Binary Linear Block Codes," IEEE Transactions on Information Theory, Vol.52, No.10, pp.4444-4454 (2006-10).
3. Takaaki Fujita, Maki Yoshida, and Toru Fujiwara, "A New Scheme to Realize the Optimum Watermark Detection for the Additive Embedding Scheme with the Spatial Domain," IEICE Transactions on Fundamentals, Vol.E90-A, No.1, pp.216-225 (2007-01).
4. Satoshi Nakayama, Maki Yoshida, Shingo Okamura, and Toru Fujiwara, "A Private and Consistent Data Retrieval Scheme with Log-Squared Communication," IEICE Transactions on Fundamentals, Vol.E90-A, No.1, pp.204-215 (2007-01).
5. Kenji Yasunaga, Toru Fujiwara, and Tadao Kasami, "Local Weight Distribution of the (256, 93) Third-Order Binary Reed-Muller Code," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E90-A, No.3, pp.698-701 (2007-03).

International Conferences

1. Maki Yoshida and Toru Fujiwara, "On the Security of Tag-KEM for Signcryption," 2nd Workshop on Cryptography for Ad hoc Networks (WCAN'06), Electronic Notes in Theoretical Computer Science (2006-07).
2. Junya Asano, Shingo Okamura, Maki Yoshida, and Toru Fujiwara, "Towards Secure C2C Contents Distribution Services," The 1st Joint Workshop on Information Security (JWIS 2006) (2006-09).
3. Hitoshi Tokushige, Marc Fossorier, Toru Fujiwara, and Tadao Kasami, "An Improvement to an Iterative Bounded-distance and Encoding-based Decoding Algorithm for Binary Linear Block Codes," 2006 International Symposium on Information Theory and Its Applications, pp.254-259 (2006-10).
4. Jun Asatani, Takuya Koumoto, Toru Fujiwara, and Tadao Kasami, "Method for Generating a Competing Codeword Using a Chain of Minimum Distance Searches," 2006 International Symposium on Information Theory and Its Applications, pp.260-264 (2006-10).
5. Maki Yoshida, Takaaki Fujita, and Toru Fujiwara, "A New Optimum Detection Scheme for Additive Watermarks Embedded in Spatial Domain," IEEE 2006 International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2006), pp.101-104 (2006-12).

2005/04-

Journals

1. Yasunori Ishihara, Shuichiro Ako and Toru Fujiwara, "Security against Inference Attacks on Negative Information in Object-Oriented Databases," IEICE Transactions on Information and Systems, Vol.E88-D, No.12, pp.2767-2776 (2005-12).

International Conferences

1. Kenji Hashimoto, Yasunori Ishihara, and Toru Fujiwara, "Schema Update Operations Preserving the Expressive Power in XML Databases," Proceedings of the International Special Workshop on Databases For Next Generation Researchers In Memoriam Prof. Yahiko Kambayashi (SWOD2005), pp.38-41 (2005-4).
2. Shingo Okamura, Maki Yoshida, and Toru Fujiwara, "Coin-based Anonymous Fingerprinting Scheme with Automatic Identification of Redistributors," Peer-reviewed Proceedings of the ISSA 2005 New Knowledge Today Conference, CD-ROM (2005-06).
3. Satoshi Nakayama, Maki Yoshida, Shingo Okamura, Akira Fujiwara, and Toru Fujiwara, "An Efficient Private and Consistent Data Retrieval Protocol," Conference Records of Western European Workshop on Research in Cryptology (WEWoRC2005), pp.83-84 (2005-7).
4. Takaaki Fujita, Kunihiro Okamoto, Maki Yoshida, and Toru Fujiwara, "A Watermark Detection Scheme Ensuring the False Positive Error Probability," Conference Records of Western European Workshop on Research in Cryptology (WEWoRC2005), pp.18-19 (2005-7).
5. Kenji Yasunaga and Toru Fujiwara, "Relations between the Local Weight Distributions of a Linear Block Code, Its Extended Code, and Its Even Weight Subcode", in Proc. 2005 IEEE Int. Symp. on Information Theory (ISIT2005), Adelaide, Australia, CD-ROM (2005-09).
6. Maki Yoshida, Shigeo Mitsunari, and Toru Fujiwara, "A Timed-Release Key Management Scheme for Backward Recovery," Proceedings of the 8th Annual International Conference on Information Security and Cryptology (ICISC2005), Lecture Notes in Computer Science 3935, pp.1-15 (2005-12).

2004/04-

Journals

1. Shingo Okamura, Yoshiyuki Konishi, Maki Yoshida and Toru Fujiwara, "Unlinkable Delivery System for Interactive Dramas," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E88-A, No.1, pp.262-269 (2005-01).
2. Yasunori Ishihara, Shin Ishii, Hiroyuki Seki and Minoru Ito, "Temporal Reasoning about Two Concurrent Sequences of Events," SIAM Journal on Computing, Vol.34, No.2, pp.498-513 (2005-02).

International Conferences

1. Shingo Okamura, Yoshiyuki Konishi, Maki Yoshida and Toru Fujiwara, "An Interactive Drama Delivery System Suitable for Mobile Phone (Preliminary Version)," Proceedings of the 5th International workshop on Information Security Applications (WISA2004), pp.391-398 (2004-8).
2. Kunihiro Okamoto, Takayuki Ueno, Maki Yoshida, and Toru Fujiwara, "A Method to Ensure Reliability of a Detection Result for Correlation Based Watermarking Detection Schemes," 2004 International Symposium on Information Theory and Its Applications, pp.299-304 (2004-10).
3. Akira Fujiwara, Shingo Okamura, Maki Yoshida, and Toru Fujiwara, "A Digital Contents Consignment System Protecting Marketing Information," 2004 International Symposium on Information Theory and Its Applications, pp.468-473 (2004-10).
4. Shingo Okamura, Maki Yoshida, and Toru Fujiwara, "Unlinkable Delivery System for Interactive Dramas Including Conditional Choices," 2004 International Symposium on Information Theory and Its Applications, pp.474-479 (2004-10).
5. Kenji Yasunaga and Toru Fujiwara, "An Algorithm for Computing the Local Weight Distribution of Binary Linear Codes Closed under a Group of Permutations," 2004 International Symposium on Information Theory and Its Applications, pp.846-851 (2004-10).
6. Jun Asatani, Hitoshi Tokushige, Kenichi Tomita, Toru Fujiwara and Tadao Kasami, "Iterative Decoding of Product Codes Using Minimum Distance Search Based Soft-Input Soft-Output Decoding Algorithm,," 2004 International Symposium on Information Theory and Its Applications, pp.980-985 (2004-10).
7. Yuta Yoneda, Hitoshi Tokushige, Toru Fujiwara, and Tadao Kasami, "Good Binary Image Search for Linear Block Codes over an Extended Field of GF(2), " 2004 International Symposium on Information Theory and Its Applications, pp.1309-1314 (2004-10).
8. Yasunori Ishihara, Yumi Shimakawa, and Toru Fujiwara, "Type Inferability and Decidability of the Security Problem against Inference Attacks on Object-Oriented Databases," Proceedings of the 6th International Conference on Information and Communications Security, Lecture Notes in Computer Science 3269, pp.145-157 (2004-10).

2003/04-

Journals

1. Yasunori Ishihara, Kengo Mori and Toru Fujiwara, "Sufficient Conditions for Update Operations on Object-Oriented Databases to Preserve the Security against Inference Attacks," IEICE Transactions on Information and Systems, Vol.E86-D, No.10, pp.2187-2197 (2003-10).

2002/04-

Journals

1. Yoshihiro Murata, Yasunori Ishihara and Minoru Ito, "An Approximation Algorithm for the Task-Coalition Assignment Problem," IEICE Transactions on Information and Systems, Vol.E85-D, No.4, pp.685-693 (2002-04).
2. Yuansheng Tang, Toru Fujiwara and Tadao Kasami, "Asymptotic Optimality of the GMD and Chase Decoding Algorithms," IEEE Transactions on Information Theory, Vol.48, No.8, pp.2401-2405 (2002-08).

International Conferences

1. Shingo Okamura, Maki Yoshida and Toru Fujiwara, "A Validatable Revocation Scheme with Black-Box Traitor Tracing," 2002 International Symposium on Information Theory and Its Applications, pp.355-358 (2002-10).
2. Takayuki Ueno, Maki Yoshida and Toru Fujiwara, "A Method of Estimating the Detection Error Rate in a Certain Digital Watermarking for Audio Signals," 2002 International Symposium on Information Theory and Its Applications, pp.359-362 (2002-10).
3. Yasunori Ishihara, Shuichiro Ako and Toru Fujiwara, "Security against Inference Attacks on Negative Information in Object-Oriented Databases," Proceedings of the Fourth International Conference on Information and Communications Security, Lecture Notes in Computer Science 2513, pp.49-60 (2002-12).

2001/04-

Journals

1. Shougo Shimizu, Yasunori Ishihara, Junji Yokouchi and Minoru Ito, "Complexity of the Type-Consistency Problem for Acyclic Object-Oriented Database Schemas," IEICE Transactions on Information and Systems, Vol.E84-D, No.5, pp.623-634 (2001-05).
2. Yasunori Ishihara, Shougo Shimizu, Hiroyuki Seki and Minoru Ito, "Refinements of Complexity Results on Type Consistency for Object-Oriented Databases," Journal of Computer and System Sciences, Vol.62, No.4, pp.537-564 (2001-06).
3. Maki Yoshida and Toru Fujiwara, "Analysis and Optimization of Coding Constructions for Blacklisting Problem," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E84-A, No.9, pp2338-2345 (2001-09).
4. Hitoshi Tokushige, Kentaro Nakamaye, Takuya Koumoto, Yuansheng Tang and Tadao Kasami, "Selection of Search Centers in Iterative Soft-decision Decoding Algorithms," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E84-A, No.10, pp.2397-2403 (2001-10).

International Conferences

1. Yuansheng Tang, Tadao Kasami and Toru Fujiwara, "On the Evaluation of the Testing Conditions of the h-Chase Decoding," Proceedings of the 2000 IEEE International Symposium on Information Theory, p.259 (2001-06).
2. Yuansheng Tang, Tadao Kasami and Toru Fujiwara, "On the Asymptotic Error Performance of Symmetrical Decodings for Binary Block Codes over AWGN Channel," The First International Workshop on Sequence Design and Applications for CDMA Systems (IWSDA'2001), Chengdu, China, (2001-09).
3. Maki Yoshida and Toru Fujiwara, "Further Improvement of Kumar-Rajagopalan-Sahai Coding Constructions for Blacklisting Problem," Proceedings of the 8th IMA International Conference on Cryptography and Coding, LNCS2260, pp.27-37 (2001-12).

2000/04-

Journals

1. Yasunori Ishihara, Kiichiro Ninomiya, Hiroyuki Seki, Daisuke Takahara, Yutaka Yamada and Shigesada Omoto, "Verification of a Microcomputer Program Specification Embedded in a Reactive System," IEICE Transactions on Information and Systems, Vol.E83-D, No.5, pp.1082-1091 (2000-05).
2. Toru Nakanishi, Hajime Watanabe and Toru Fujiwara, "An Anonymous Bidding Protocol without Any Reliable Center," Transactions of Information Processing Society of Japan, Vol.41, No.8, pp.2161-2169 (2000-08).
3. Yuansheng Tang, Toru Fujiwara and Tadao Kasami, "The Optimal Sectionalized Trellises for the Generalized Version of Viterbi Algorithm of Linear Block Codes and Its Application to Reed-Muller Codes," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E83-A, No.11, pp.2329-2340 (2000-11).
4. Yeon-Dae Kwon, Yasunori Ishihara, Shougo Shimizu and Minoru Ito, "Computational Complexity of Finding Highly Co-occurrent Itemsets in Market Basket Databases," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E83-A, No.12, pp.2723-2735 (2000-12).
5. Maki Yoshida and Toru Fujiwara, "A Subscriber-Excluding and Traitor-Tracing Broadcast Distribution System," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E84-A, No.1, pp.247-255 (2001-01).
6. Masaya Maeda and Toru Fujiwara, "Weight Distributions of the Coset Leaders of Some Reed-Muller Codes and BCH Codes" IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E84-A, No.3, pp.851-859 (2001-03).

International Conferences

1. Maki Yoshida and Toru Fujiwara, "An Efficient Traitor Tracing Scheme for Broadcast Encryption," Proceedings of the 2000 IEEE International Symposium on Information Theory, p.463 (2000-06).
2. Shougo Shimizu, Yasunori Ishihara, Tomotaka Takarabe and Minoru Ito, "A Probabilistic Database Model with Representability of Dependency among Tuples," Proceedings of the 4th World Multiconference on Systemics, Cybernetics and Informatics, Volume VIII, pp.221-225 (2000-07).
3. Hitoshi Tokushige, Yuansheng Tang, Takuya Koumoto and Tadao Kasami, "An Improvement to Chase-like Decoding Algorithm," Proceedings of the 2000 International Symposium on Information Theory and Its Applications, pp.331-334 (2000-11).
4. Maki Yoshida, Takahiro Horikawa and Toru Fujiwara, "An Improvement of Coding Constructions for Blacklisting Problems," Proceedings of the 2000 International Symposium on Information Theory and Its Applications, pp.493-496 (2000-11).
5. Kaname Tomiyasu, Masaya Maeda, Hiroshi Yamamoto, Takashi Kodama and Toru Fujiwara, "On Single IC Chip Implementation of a Recursive Maximum Likelihood Decoding Algorithm for a (64,40) Reed-Muller Subcode," 2000 International Symposium on Information Theory and Its Applications, pp.794-797 (2000-11).

1999/04-

Journals

1. Toru Nakanishi, Toru Fujiwara and Hajime Watanabe, "A Linkable Group Signature Scheme and Its Application to a Secret Voting," Transactions of Information Processing Society of Japan, Vol.40, No.7, pp.3085-3096 (1999-07).
2. Yasuhiro Matsumoto and Toru Fujiwara, "A Method for Obtaining the Optimum Sectionalization of the RMLD Algorithm for Non-Linear Rectangular Codes," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E82-A, No.10, pp.2052-2060 (1999-10).
3. Tadao Kasami, Yuansheng Tang, Takuya Koumoto and Toru Fujiwara, "Sufficient Conditions for Ruling-Out Useless Iterative Steps in a Class of Iterative Decoding Algorithms," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E82-A, No.10, pp.2061-2072 (1999-10).

International Conferences

1. M.H. Miki, Daisuke Taki, Gen Fujita, Takao Onoye, Isao Shirakawa, Toru Fujiwara, and Tadao Kasami, "Recursive Maximum Likelihood Decoder for High-Speed Satellite Communication," IEEE International Symposium on Circuits and Systems (1999).
2. Toru Fujiwara, Masaya Maeda, Tadao Kasami and Hitoshi Tokushige, "On Implementations of Add-Compare-Select Procedure in a Recursive Maximum Likelihood Decoding," 5th International Symposium on DSP for Communication Systems, pp.10-15 (1999-01)
3. Yuansheng Tang, Tadao Kasami and Toru Fujiwara, An Optimality Testing Algorithm for a Decoded Codeword of Binary Block Codes and its Computational Complexity," 13th International Symposium, Applieed Algebra, Algebraic Algorithms and Error-Correcting Codes, Lecture Notes in Computer Science, Vol.1719, pp.201-210 (1999-11).

1998/04-

Books

1. Shu Lin, Tadao Kasami, Toru Fujiwara, and Marc Fossorier, Trellises and Trellis-based Decoding algorithm for Linear Block Codes, Kluwer Academic Publishers (1998).

Journals

1. Tadao Kasami, Hitoshi Tokushige, Toru Fujiwara, Hiroshi Yamamoto and Shu Lin, "A Recursive Maximum Likelihood Decoding Algorithm for Some Transitive Invariant Binary Block Codes," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E81-A, No.9, pp.1916-1924 (1998-09).
2. Robert Morelos-Zaragoza, Toru Fujiwara, Tadao Kasami and Shu Lin, "Construction of Generalized Concatenated Codes and Their Trellis-Based Decoding Complexity," IEEE Transactions on Information Theory, Vol.45, No.2, pp.725-731 (1999-03).

International Conferences

1. Yoshiyuki Kanamaru, Hiroshi Yamamoto and Toru Fujiwara, "On the Decoding Error Probability and the Accuracy of the Metric Computation for Recursive Maximum Likelihood Decoders of a (64,35) Reed-Muller Subcode," Proceedings of 1998 International Symposium on Information Theory and its Applications, Volume I, pp.94-97 (1998-10).
2. Ryujiro Shibuya, Yuichi Kaji, Toru Fujiwara, Tadao Kasami and Shu Lin, "Recursive Algorithm for Efficient Map Decoding of Binary Linear Block Codes," Proceedings of 1998 International Symposium on Information Theory and its Applications, Volume II, pp.639-642 (1998-10).
3. Maki Yoshida and Toru Fujiwara, "Distributed Generation of RSA-Key for Three or More Parties," Proceedings of the 1998 First Japan-Singapore Joint Workshop on Information Security, pp.117-122 (1998-12).
4. Daisuke Taki, Gen Fujita, Takao Onoye, Isao Shirakawa, Toru Fujiwara, and Tadao Kasami, "VLSI implementation of a recursive maximum likelihood decoder for high-speed satellite communication," International Technical Conference on Circuits/Systems, Computers and Communications, 1383-1386 (1998).

1997/04-

Journals

1. Tadao Kasami, Toyoo Takata, Koichi Yamashita, Toru Fujiwara and Shu Lin, "On Bit Error Probability of a Concatenated Coding Scheme," IEEE Transactions on Communications, Vol.45, No.5, pp.536-543 (1997-05).
2. Yoshihisa Desaki, Toru Fujiwara and Tadao Kasami, "The Weight Distribution of Extended Binary Primitive BCH Codes of Length 128," IEEE Transactions on Information Theory, Vol.43, No.4, pp.1364-1371 (1997-07).
3. Tadao Kasami, Takuya Koumoto, Toru Fujiwara, Hiroshi Yamamoto, Yoshihisa Desaki and Shu Lin, "Low Weight Subtrellises for Binary Linear Block Codes and Their Applications," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E80-A, No.11, pp.2095-2103 (1997-11).
4. Toru Fujiwara, Hiroshi Yamamoto, Tadao Kasami and Shu Lin, "A Trellis-Based Recursive Maximum Likelihood Decoding Algorithm for Linear Block Codes," IEEE Transactions on Information Theory, Vol.44, No.2, pp.714-729 (1998-03).

International Conferences

1. Tadao Kasami, Tsukasa Sugita and Toru Fujiwara, "The Split Weight (wL,wR) Enumeration of Reed-Muller Codes for wL+wR < 2dmin," 12th International Symposium, Applieed Algebra, Algebraic Algorithms and Error-Correcting Codes, Lecture Notes in Computer Science 1255, pp.197-211 (1997-06).
2. Toru Fujiwara, Yoshihisa Desaki, Tsukasa Sugita and Tadao Kasami, "The Weight Distributions of Several Extended Binary Primitive BCH Codes of Length 256," 1997 IEEE International Symposium on Information Theory, p.363 (1997-06)
3. Tadao Kasami, Takuya Koumoto, Toru Fujiwara, Hiroshi Yamamoto and Shu Lin, "The Structure and Complexity of Subtrellis Diagrams for Low Weight Codewords of Binary Linear Block Codes," 1997 IEEE International Symposium on Information Theory, p.364 (1997-06).
4. Yuich Kaji, Toru Fujiwara, Tadao Kasami and Shu Lin, "A Recursive Log-MAP Algorithm for Binary Linear Block Codes," IEEE Information Theory Workshop, pp.75-76 (1997-07).
5. Toru Fujiwara, Takashi Komura, Takao Onoye, Yuichi Kaji, Tadao Kasami and Shu Lin, IC Implementation of a Recursive Maximum Likelihood Decoding Algorithm for Reed-Muller and Related Codes," 4th International Symposium on Communication Theory and Applications, pp.2-7 (1997-07).
6. Toru Nakanishi, Hajime Watanabe and Toru Fujiwara "A Linkable Group Signature and Its Application to a Fair Secret Voting," 4th International Symposium on Communication Theory and Applications, pp.159-164 (1997-07).
7. Hiroshi Yamamoto, Toru Fujiwara and Takayuki Uchida, "Recursive Maximum Likelihood Decoding Algorithm for Convolutional Codes and Its Complexity Thirty-Fifth Annual Allerton Conference on Communication, Control, and Computing (1997).