Satoshi Okada

Satoshi Okada

Assistant Professor, Toyo University.

Publications and Talks

You can also find my articles on my Google Scholar profile.

Journals (Peer-reviewed)

  1. Satoshi Okada, Houda Jmila, Kunio Akashi, Takuho Mitsunaga, Yuji Sekiya, Hideki Takase, Gregory Blanc, Hiroshi Nakamura, “Xai-driven black-box adversarial attacks on network intrusion detectors,” International Journal of Information Security, 24, 2025.

  2. Satoshi Okada, Yosuke Katano, Yukihiro Kozai, Takuho Mitsunaga, “Predicting and Visualizing Lateral Movements Based on ATT&CK and Quantification Theory Type 3,” Journal of Cases on Information Technology (JCIT), 26, pp.1-14, 2024.

  3. Masaki Kuwano, Momoka Okuma, Satoshi Okada, Takuho Mitsunaga, “The Attacker Might Do Next : ATT&CK Behavior Forecasting by Attacker-based Collaborative Filtering and Graph Databases,” Journal of Information Processing 31, pp.802-811, 2023.

  4. Satoshi Okada, Kunio Akashi, Daisuke Miyamoto, Yuji Sekiya, Hideki Takase, Hiroshi Nakamura, “Memory-saving LDoS Attacker Detection Algorithms in Zigbee Network”, Journal of Information Processing 31, pp.537-549, 2023.

  5. Satoshi Okada, Nobuho Hashimoto, Takuho Mitsuanga, “Efficient Matching Algorithms between Logs and Indicators for Automatic Incident Response System,” Journal of Information Processing 31, pp.279-287, 2023.

International Conferences (Peer-reviewed)

  1. Junichiro Ando, Satoshi Okada, Takuho Mitsunaga, “Jailbreak Attack on a Multi-Agent LLM Defense System,” International Congress on Information and Communication Technology, to appear, 2025.

  2. Rei Watanabe, Satoshi Okada, Koki Watarai, Takuho Mitsunaga, “Cloud SecNavigator: RAG Approach to Bridge Gaps and Strengthen Cloud Security Practices with RAGAS Assessment,” 2024 International Conference on Engineering and Emerging Technologies (ICEET), IEEE, pp. 1-6, 2024.

  3. Satoshi Okada, Houda Jmila, Kunio Akashi, Takuho Mitsunaga, Yuji Sekiya, Hideki Takase, Gregory Blanc, Hiroshi Nakamura, “XAI-driven Adversarial Attacks on Network Intrusion Detectors,” Proceedings of the 2024 European Interdisciplinary Cybersecurity Conference, ACM, pp. 65-73, 2024.

  4. Satoshi Okada, Takuho Mitsunaga, “An Improved Technique for Generating Effective Noises of Adversarial Camera Stickers,” International Congress on Information and Communication Technology, Springer Nature Singapore, pp. 289-300, 2024.

  5. Taisei Matsumura, Satoshi Okada, Koki Watarai, Takuho Mitsunaga, “Explainable Anomaly Detection Method Using LLM Embeddings Model with SHAP,” 7th International Conference on Signal Processing and Information Security (ICSPIS), IEEE, pp.1-5, 2024.

  6. Momoka Okuma, Koki Watarai, Satoshi Okada, Takuho Mitsunaga, “Automated Mapping Method for Sysmon Logs to ATT&CK Techniques by Leveraging Atomic Red Team”, 2022 5th International Conference on Signal Processing and Information Security (ICSPIS). IEEE, pp.104-109, 2023.

  7. Konosuke Tamamura, Shun Sakai, Koki Watarai, Satoshi Okada, Takuho Mitsunaga, “Detection of XSS Attacks with One Class SVM Using TF-IDF and Devising a Vectorized Vocabulary,” 2023 IEEE International Conference on Computing (ICOCO), IEEE, pp.35-40, 2023.

  8. Koshi Ishide, Satoshi Okada, Mariko Fujimoto, Takuho Mitsunaga, “ML Detection Method for Malicious Operation in Hybrid Zero Trust Architecture,” 2022 IEEE International Conference on Computing (ICOCO), IEEE, pp.264-269, 2022.

  9. Tomoya Oshio, Satoshi Okada, Takuho Mitsunaga, “Machine Learning-based Anomaly Detection in ZigBee Networks,” 2022 IEEE International Conference on Computing (ICOCO), IEEE, pp.259-263, 2022.

  10. Yosuke Katano, Yukihiro Kozai, Satoshi Okada, Takuho Mitsunaga, “Prediction of Infected Devices Using the Quantification Theory Type 3 Based on MITRE ATT&CK Technique,” 2022 IEEE International Conference on Computing (ICOCO), IEEE, pp.198-203, 2022.

  11. Masaki Kuwano, Momoka Okuma, Satoshi Okada, Takuho Mitsunaga, “ATT&CK Behavior Forecasting based on Collaborative Filtering and Graph Databases,” 2022 IEEE International Conference on Computing (ICOCO), IEEE, pp.191-197, 2022. Best paper award.

  12. Satoshi Okada, Daisuke Miyamoto, Yuji Sekiya, Hideki Takase, Hiroshi Nakamura, “LDoS Attacker Detection Algorithms in Zigbee Network,” International Conferences on Internet of Things (iThings), IEEE, pp.43-50, 2021.

  13. Takuho Mitsunaga, Yoshiki Fujiwara, Satoshi Okada, “Proposal for Realization and Improvement of DX in Municipal Services Based on Digital Business Models,” International Conference on Computing (ICOCO), IEEE, pp.158-162, 2021.

  14. Satoshi Okada, Mariko Fujimoto, Wataru Matsuda, Takuho Mitsunaga, “Malware Detection Method using Tree-based Machine Learning Algorithms,” 2021 IEEE International Conference on Computing (ICOCO), IEEE, pp.103-108, 2021.

  15. Satoshi Okada, Yoshiki Fujiwara, Mariko Fujimoto, Wataru Matsuda, Takuho Mitsunaga, “Efficient Incident Response System on Shared Cyber Threat Information Using SDN and STIX,” 2021 IEEE International Conference on Computing (ICOCO), IEEE, pp.109-114, 2021. Best paper award.

  16. Satoshi Okada, Yuntao Wang, “Recovery Attack on Bob’s Reused Randomness in CRYSTALS-KYBER and SABER,” The 15th International Conference on Provable and Practical Security (ProvSec 2021), Springer LNCS, Vol. 13059, pp. 155-173, 2021.

  17. Satoshi Okada, Daisuke Miyamoto, Yuji Sekiya, Hiroshi Nakamura, “New LDoS Attack in Zigbee Network and its Possible Countermeasures,” International Conference on Smart Computing (SMARTCOMP), IEEE, pp.246-251, 2021.

  18. Satoshi Okada, Yuntao Wang, Tsuyoshi Takagi, “Improving key mismatch attack on NewHope with fewer queries,” The 25th Australasian Conference on Information Security and Privacy (ACISP 2020), Springer LNCS, Vol. 12248, pp. 505-524, 2020.

List of papers (no peer-reviewed):

  1. 藤原 良樹, 岡田 怜士, 伊藤 優子, 吉倉 昌利, 久住 理紗, 満永 拓邦, “デジタルビジネスモデルに基づく自治体活動のDX実現および改善に関する検討”, 情報処理学会 第83回全国大会, オンライン, 2021.

  2. 岡田 怜士, 宮本 大輔, 関谷 勇司, 中村 宏, “Zigbeeの間接通信を利用したLDoS攻撃とその対策の提案” 電子情報通信学会 ネットワーク研究会, 2021.

  3. 岡田 怜士, 王イントウ. “格子暗号CRYSTALS-KYBERとSABERに対する鍵再利用攻撃の提案”, 2021年 暗号と情報セキュリティシンポジウム (SCIS), 2021.

  4. 岡田 怜士, 王イントウ, 髙木 剛, “格子暗号NewHopeに対する鍵不一致攻撃の改良”, 2020年 暗号と情報セキュリティシンポジウム (SCIS), 2020.

Books:

  1. Saho Kobayashi, Satoshi Okada, Yu Asabe, Takuho Mitsunaga “はじめて学ぶバイナリ解析 不正なコードからコンピュータを守るサイバーセキュリティ技術”, Impress R&D, ISBN: 9784844378495, 2020.

Talks:

  1. Satoshi Okada, Takuho Mitsunaga, “AI Governance with Multistakeholder for Safer AI Society,” 36th Annual FIRST (Forum of Incident Response and Security Teams) Conference, June, 2024.

  2. Takuho Mitsunaga, Koki Watarai, Satoshi Okada, Ruka Negishi, “CloudSec Navigator,” Black Hat Asia 2024 Arsenal, May, 2024.

  3. Satoshi Okada, “Advanced Security Operation Technologies in the era of cyber-physical convergence”, 6th Franco-Japanese Cybersecurity Workshop, Apr. 2022.

  4. 岡田 怜士, 招待公演 “Misuseシナリオにおける格子暗号への秘密鍵・乱数復元攻撃”, 共同利用・ワークショップ「新世代暗号の設計・評価」, 九州大学マス・フォア・インダストリ研究所 IMI, Oct. 2021.

Others

  1. JNSA (Japan Network Security Association) e-zine (“Blackhat USA 2022/DEF CON 30”), Nov. 2022.