In Preparation / Submitted Papers (2025)

1. Ahmad Akmal Aminuddin, Masamune Okada, Masaya Fujisawa, "Privacy-preserving keyword search with access control for secret sharing-based data outsourcing," IEEE Access, 2025.

(Progress: accepted, in press)

2. Ahmad Akmal Aminuddin, Masaya Fujisawa, "Efficient and secure secret sharing-based data outsourcing suitable for internet of things Environments," Elsevier Internet of Things (IOT), 2025.

(Progress: accepted, in press)

3. Keiichi Iwamura, Ahmad Akmal Aminuddin, "Improving the security of asymmetric secret sharing scheme and its new applications," Elsevier Journal of Information Security and Applications (JISA), 2025.

(Progress: accepted, in press)

4. Keiichi Iwamura, Ahmad Akmal Aminuddin, "Secure user authentication with information theoretic security using secret sharing-based secure computation," IEEE Access, 2025. 

(Progress: accepted, in press)

5. Masaya Fujisawa, Tatsuya Kamikawa, Ahmad Akmal Aminuddin, "Flight models considering wind effects on drone-based networks during large-scale disasters," IEICE Communications Express (ComEx), 2025. 

(Progress:  accepted, in press)

6. Takuta Miya, Ahmad Akmal Aminuddin, Masaya Fujisawa, "Implementing XAI for enhanced network anomaly detection with unknown attacks," IEEE 14th Global Conference on Consumer Electronics (GCCE), 2025.

(Progress: presented)

7. Ahmad Akmal Aminuddin, Masaya Fujisawa, "Communication-efficient information sharing using partial information leakage in ramp secret sharing," Computer Security Symposium 2025 (CSS2025), 2025.

(Progress: presented)

8. Chengsen Hong, Ryo Shibata, Masaya Fujisawa, Ahmad Akmal Aminuddin, "Modeling and error correction of channel with synchronization errors and multi-sampling,"  Symposium on Information Theory and its Applications 2025 (SITA2025), 2025.

(Progress: presented)

9. Kazu Nakagawa, Masaya Fujisawa, Ahmad Akmal Aminuddin, "Improvement of BIKE Decryption by Detecting Decoding Stagnation,"  Symposium on Information Theory and its Applications 2025 (SITA2025), 2025.

(Progress: presented)

10. Keiichi Iwamura, Ahmad Akmal Aminuddin, "Secure computation-based communication, key sharing, and user authentication with information-theoretic security," EUROCRYPT2026, 2026.

(Progress: in progress)

11. Takuta Miya, Ahmad Akmal Aminuddin, Masaya Fujisawa, "Robust time-aligned signal extraction for improved multimodal data in pneumonia diagnosis," 2026 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing, 2026.

(Progress: in progress)

12. Mikoto Kimura, Ahmad Akmal Aminuddin, Masaya Fujisawa, "Efficient physical zero-knowledge proof for sukoro via binary representation and simulation," 2026 Symposium on Cryptography and Information Security (SCIS2026), 2026.

(Progress: in progress)

13. Taisei Nakata, Masaya Fujisawa, Ahmad Akmal Aminuddin, "Proposal of a stabilization method for federated learning using DP-SGD for non-IID data," 2026 Symposium on Cryptography and Information Security (SCIS2026), 2026.

(Progress: in progress)

14. Ryosuke Nomura, Ahmad Akmal Aminuddin, Masaya Fujisawa, "Optimal patch placement in remote adversarial patch attacks considering both image and patch information propagation, and its application to CAPTCHA," 2026 Symposium on Cryptography and Information Security (SCIS2026), 2026.

(Progress: in progress)

15. Yusei Kitamura, Ahmad Akmal Aminuddin, Masaya Fujisawa, "Investigating the Influence of decoding strategies on prompt estimation and text regeneration in japanese language," Joint Workshop on Natural Language Processing and Speech and Language Processing (NL 266, SLP 158), 2025.

(Progress: in progress)

16. Ahmad Akmal Aminuddin, Masaya Fujisawa, "Secure and Communication-Efficient Information Sharing for Resource-Constrained Devices," IEEE Internet of Things Journal, 2025.

(Progress: in progress)

17. Ahmad Akmal Aminuddin, Masaya Fujisawa, "Distributed and transparent authentication on consortium blockchains using threshold secret sharing and smart contracts," Elsevier ICT Express, 2025.

(Progress: in progress)

18. Ahmad Akmal Aminuddin, Masaya Fujisawa, "Multi-input secure multiplication using secret sharing and degree reduction with N \geq k servers," IEICE Communications Express, 2025.

(Progress: in progress) 

19. Ahmad Akmal Aminuddin, Masaya Fujisawa, "Traceable parcels delivery system using blockchain network," IEEE Trans., 2025.

(Progress: in progress)

Explanatory Articles

1. Ahmad Akmal Aminuddin, "Secure Computation," TUS Science Forum 2024, December 2024. (In Japanese)

Available online: https://www.tus.ac.jp/about/information/publication/forum/2024.html

2. Ahmad Akmal Aminuddin, "Secure Computation," The Journal of The Institute of Image Information and Television Engineers, vol. 78, no. 6, pp. 648-651, November 2024. (In Japanese)

Available online: https://www.ite.or.jp/contents/keywords/2411keyword.pdf

3. Keiichi Iwamura, Ahmad Akmal Aminuddin, "Secure computation with secret sharing," The Journal of the Institute of Electronics, Information and Communication Engineers, vol. 106, no. 5, pp. 446-447, May 2023. (In Japanese)

Available online: https://www.ieice-hbkb.org/ieice_portal/wp-content/uploads/2023/09/k106_5_446.pdf 

Journal Papers (Peer-Reviewed)　*corresponding author

1. Ahmad Akmal Aminuddin, Masaya Fujisawa, "Efficient and secure secret sharing-based data outsourcing suitable for Internet of Things environments," Elsevier Internet of Things, vol. 32, no. 101645, July 2025. 10.1016/j.iot.2025.101645 

2. Masaya Fujisawa, Tatsuya Kamikawa, Ahmad Akmal Aminuddin, "Flight models considering wind effects on drone-based networks during large-scale disasters," IEICE Communications Express (ComEx), vol. 14, no. 8, pp. 326-329, July 2025.  10.23919/comex.2025XBL0073 

3. Keiichi Iwamura, Ahmad Akmal Aminuddin*, "Improving the security of asymmetric secret sharing scheme and its new applications," Elsevier Journal of Information Security and Applications, vol. 93, no. 104098, September 2025. 10.1016/j.jisa.2025.104098 

4. Ahmad Akmal Aminuddin, Masamune Okada, Masaya Fujisawa, "Privacy-preserving keyword search with access control for secret sharing-based data outsourcing," IEEE Access, vol. 13, pp. 73625-73651, April 2025. 10.1109/ACCESS.2025.3562667

5. Keiichi Iwamura, Ahmad Akmal Aminuddin*, "Secure user authentication with information theoretic security using secret sharing-based secure computation," IEEE Access, vol. 13, pp. 9015-9031, January 2025. 10.1109/ACCESS.2025.3526632

6. Ahmad Akmal Aminuddin, Masaya Fujisawa, "Improved protocols for secure multiplication using secret sharing scheme," Elsevier ICT Express, vol. 10, no.5, pp. 1019-1025, October 2024. 10.1016/j.icte.2024.07.009

7. Yuki Kawahara, Ahmad Akmal Aminuddin, Masaya Fujisawa, "A lightweight information sharing system with access control in disaster management with security against dishonest users," Journal of Signal Processing, vol. 28, no. 4, pp. 161-164, July 2024. 10.2299/jsp.28.161

8. Keiichi Iwamura, Ahmad Akmal Aminuddin*, "Communication-efficient secure computation of encrypted inputs using (k,n) threshold secret sharing," IEEE Access, vol. 11, pp. 51166-51184, May 2023. 10.1109/ACCESS.2023.3278995

9. Ahmad Akmal Aminuddin, Keiichi Iwamura, "Privacy preserving multi-party multiplication of polynomials based on (k,n) threshold secret sharing," Elsevier ICT Express, vol. 9, no. 5, pp. 874-881, 2023. 10.1016/j.icte.2023.02.001

10. Keiichi Iwamura, Ahmad Akmal Aminuddin*, "TTP-aided secure computation using (k,n) threshold secret sharing with a single computing server," IEEE Access, vol. 10, pp. 120503 - 120513, 2022. 10.1109/ACCESS.2022.3222312

11. Keiichi Iwamura, Ahmad Akmal Aminuddin*, "Simple approach to realizing verifiable secret sharing for secure cloud system," IEEE Access, vol. 10, pp. 76794 - 76804, 2022. 10.1109/ACCESS.2022.3192645

12. Keiichi Iwamura, Ahmad Akmal Aminuddin, "Efficient partial matching search using error correction code," Journal of Information Processing, vol. 63, no. 2, pp. 684-693, February 2022. (In Japanese) 10.20729/00216279

13. Ahmad Akmal Aminuddin, Keiichi Iwamura, "(Server-aided) two-party multiplication of encrypted shares using (k,n) threshold secret sharing with N ≥ k servers," IEEE Access, vol. 9, pp. 113117-113129, 2021.  10.1109/ACCESS.2021.3104505

14. Ahmad Akmal Aminuddin, Keiichi Iwamura, "Searchable encryption using secret sharing scheme that realizes direct search of encrypted documents and disjunctive search of multiple keywords," Elsevier Journal of Information Security and Applications (JISA), vol. 59, 102824, June 2021. 10.1016/j.jisa.2021.102824

15. Ahmad Akmal Aminuddin, Keiichi Iwamura, "Conditionally secure multiparty computation when n < 2k-1," Journal of Information Processing, vol. 59, no. 9, pp. 1581-1595, September 2018.  (In Japanese) http://id.nii.ac.jp/1001/00191368/

16. Takeshi Shingu, Ken Aoi, Ahmad Akmal Aminuddin*, Keiichi Iwamura, "Secure computation without changing polynomial degree in (k, n) secret sharing scheme," Journal of Information Processing, vol. 59, no, 3, pp. 1038-1048, March 2018.  (In Japanese) http://id.nii.ac.jp/1001/00186751/

International Conference Papers (Peer-Reviewed)

1. Masamune Okada, Ahmad Akmal Aminuddin, Masaya Fujisawa, "Secure user authentication with secret sharing and smart contract for permissioned blockchain," in the Proceedings of the 2023 IEEE 13th Global Conference on Consumer Electronics (GCCE), October 2024. 10.1109/GCCE62371.2024.10760718

2. Yuki Kawahara, Masaya Fujisawa, Ahmad Akmal Aminuddin, "Secure information sharing with access control and tamper detection for drone-based disaster management," in the Proceedings of the 2023 IEEE 13th Global Conference on Consumer Electronics (GCCE), October 2024. 10.1109/GCCE62371.2024.10760956

3. Yuki Kawahara, Masaya Fujisawa, Ahmad Akmal Aminuddin, "A lightweight information sharing system with access control in disaster management with security against dishonest users," in the Proceedings of the 2024 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP2024), March 2024.

[Student Paper Award 2024 (Paper ID 96): Yuki Kawahara]

4. Ahmad Akmal Aminuddin, Masamune Okada, Masaya Fujisawa, "Keyword-based searchable encryption using threshold secret sharing," in the Proceedings of International Conference on Emerging Technologies for Communications (ICETC) 2023, November 2023. 10.34385/proc.79.P2-9

5. Yasuhiro Kan, Kazuma Aoi, Ahmad Akmal Aminuddin, Masaya Fujisawa, "Traceable parcels delivery system using blockchain network," in the Proceedings of International Conference on Emerging Technologies for Communications (ICETC) 2023, November 2023. 10.34385/proc.79.P2-12

6. Yuki Kawahara, Masaya Fujisawa, Ahmad Akmal Aminuddin, "Cost-efficient and secure information sharing system with access control for wireless drone networks," in the Proceedings of International Conference on Emerging Technologies for Communications (ICETC) 2023, November 2023. 10.34385/proc.79.P2-10

7. Ahmad Akmal Aminuddin, Keiichi Iwamura, "TTP-aided searchable encryption of documents using threshold secret sharing," in the Proceedings of the 9th International Conference on Information Systems Security and Privacy (ICISSP 2023), pp. 442-449, February 2023. 10.5220/0011653700003405

8. Keiichi Iwamura, Ahmad Akmal Aminuddin, Masaki Inamura, "TTP-aided secure computation using secret sharing with only one computing server," in the Proceedings of the 2022 ACM on Asia Conference on Computer and Communications Security (Asia CCS), May 2022. 10.1145/3488932.3527281

9. Keiichi Iwamura, Ahmad Akmal Aminuddin, Daichi Kuroi, "Efficient secret sharing-based partial matching search using error correction code," in the Proceedings of the Future Technologies Conference (FTC) 2021, vol. 3, pp. 65-81, October 2021. 10.1007/978-3-030-89912-7_6 

10. Keiichi Iwamura, Ahmad Akmal Aminuddin, "Secure computation by secret sharing using input encrypted with random number.," in the Proceedings of the 18th International Conference on Security and Cryptography (SECRYPT), pp. 540-547, July 2021. 10.5220/0010552305400547

11. Ahmad Akmal Aminuddin, Keiichi Iwamura, "Improvement of secure multi-party multiplication of (k,n) threshold secret sharing using only N=k servers," in the Proceedings of the 7th International Conference on Information Systems Security and Privacy (ICISSP), pp. 77-88, February 2021. 10.5220/0010206400770088

12. Shogo Ochiai, Keiichi Iwamura, Ahmad Akmal Aminuddin, "Secure pairwise key sharing using geometric group key sharing method," in the Proceedings of the 2020 IEEE 17th Annual Consumer Communications & Networking Conference (CCNC), pp. 1-2, January 2020. 10.1109/CCNC46108.2020.9045170

13. Ahmad Akmal Aminuddin, Keiichi Iwamura, "Searchable encryption using secret-sharing scheme for multiple keyword search using conjunctive and disjunctive searching,"  in the Proceedings of the 2019 IEEE International Conference on Cyber Science and Technology Congress (CyberSciTech), pp. 149-156, August 2019. 10.1109/DASC/PiCom/CBDCom/CyberSciTech.2019.00038

14. Ahmad Akmal Aminuddin, Keiichi Iwamura, Hyunho Kang, "Searchable encryption of image based on secret sharing scheme," in the Proceedings of the 2017 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), pp. 1495-1503, December 2017. 10.1109/APSIPA.2017.8282269

15. Ahmad Akmal Aminuddin, Keiichi Iwamura, "Conditionally secure multiparty computation using secret sharing scheme for n < 2k-1 (short paper)," in Proceedings of the 2017 15th Annual Conference on Privacy, Security and Trust (PST), pp. 225-230, August 2017. 10.1109/PST.2017.00034

Domestic Conference Papers (In Japanese)

1. Ahmad Akmal Aminuddin, Masaya Fujisawa, "Communication-efficient information sharing using partial information leakage in ramp secret sharing," Computer Security Symposium 2025 (CSS2025), 5G1-4, 2025. (In Japanese)

2. Chengsen Hong, Ryo Shibata, Masaya Fujisawa, Ahmad Akmal Aminuddin, "Modeling and error correction of channel with synchronization errors and multi-sampling,"  Symposium on Information Theory and its Applications 2025 (SITA2025), 8.2.1, 2025.

3. Kazu Nakagawa, Masaya Fujisawa, Ahmad Akmal Aminuddin, "Improvement of BIKE Decryption by Detecting Decoding Stagnation,"  Symposium on Information Theory and its Applications 2025 (SITA2025), 1.4.3, 2025.

4. Tatsuya Kamikawa, Masaya Fujisawa, Ahmad Akmal Aminuddin, "Verification of wind effects on drone networks during disasters and improvement of information transmission efficiency," 2025 IEICE General Conference, B-7-08, 2025. (In Japanese) 

5. Rin Sakuma, Masaya Fujisawa, Ahmad Akmal Aminuddin, "Re-consideration for layered structure LEACH-AP using energy harvesting," 2025 IEICE General Conference, B-18-02, 2025. (In Japanese) 

6. Takuta Miya, Ahmad Akmal Aminuddin, Masaya Fujisawa, "A study on implementation of explainable deep learning model for network anomaly detection with unknown attacks," 2025 IEICE General Conference, A-7-09, 2025. (In Japanese) 

7. Keiichi Iwamura, Ahmad Akmal Aminuddin, "Information-theoretic secure user authentication and communication using secret sharing-based secure computation," 2025 Symposium on Cryptography and Information Security (SCIS2025), 2025. 

8. Keiichi Iwamura, Ahmad Akmal Aminuddin, "Security improvement of asymmetric secret sharing scheme and introduction of its new applications," 2025 Symposium on Cryptography and Information Security (SCIS2025), 2025. 

9. Chengsen Hong, Ryo Shibata, Ahmad Akmal Aminuddin, Masaya Fujisawa, "GC content balancing on constraint DNA storage using differential operation," 2024  Symposium on Information Theory and its Applications (SITA2024), 2024.

10. Sakuma Rin, Masaya Fujisawa, Ahmad Akmal Aminuddin, Hiroyuki Yashima, "Layered structure LEACH-AP using energy harvesting," IEICE Society Conference 2024, B-18-07, 2024.

11. Ahmad Akmal Aminuddin, "Improved searchable secret sharing with user access control," IEICE Society Conference 2024, A-7-11, 2024.

12. Ahmad Akmal Aminuddin, Masamune Okada, Masaya Fujisawa, "Secret sharing and smart contract based user authentication suitable for permissioned blockchain," IEICE Society Conference 2024, A-7-10, 2024.

13. Yuki Kawahara, Masaya Fujisawa, Ahmad Akmal Aminuddin, "Secure information sharing with access control and tamper detection using ramp secret sharing," IEICE Society Conference 2024, A-7-09, 2024.

14. Kazu Nakagawa, Masaya Fujisawa, Ahmad Akmal Aminuddin, "Post-quantum cryptography based on polar codes with cyclic redundancy check aided decoding," IEICE Society Conference 2024, A-7-07, 2024.

15. Ahmad Akmal Aminuddin, Masamune Okada, Masaya Fujisawa, "Searchable encryption using secret sharing with user access control,"2024 Symposium on Cryptography and Information Security (SCIS2024), January 2024.

16. Masamune Okada, Ahmad Akmal Aminuddin, Masaya Fujisawa, "Performance evaluation of searchable encryption using XOR-based secret sharing," IPSJ SIG Technical Report, vol. 2023-SPT-52, no. 9, pp. 1-7, July 2023.

17. Gen Fujii, Masaya Fujisawa, Ahmad Akmal Aminuddin, "Measures for frequency analysis of searchable encryption by adding dummy data focusing on the mode of a group," 2023 Symposium on Cryptography and Information Security, January 2023.

18. Ryoya Kudo, Ahmad Akmal Aminuddin, Keiichi Iwamura, Masaki Inamura, "Development of secure computation libraries and implementation of verifiable secure computation," 2023 Symposium on Cryptography and Information Security, January 2023.

19. Keiichi Iwamura, Ahmad Akmal Aminuddin, "Fast multiparty computation using secret sharing scheme," 2020 Symposium on Cryptography and Information Security, January 2020.

20. Keiichi Iwamura, Ahmad Akmal Aminuddin, "Multiparty computation using secret sharing scheme with number of servers N < 2k-1," 2020 Symposium on Cryptography and Information Security, January 2020.

21. Ahmad Akmal Aminuddin, Keiichi Iwamura, "Multiple keywords search of document with direct searching using searchable encryption based on secret sharing scheme," Computer Security Symposium 2019, pp. 862-869, October 2019.

22. Ahmad Akmal Aminuddin, Keiichi Iwamura, "Searchable image encryption using secret sharing scheme," IEICE Technical Report, vol. 119, no. 47, pp. 43-48, May 2019.

23. Ahmad Akmal Aminuddin, Keiichi Iwamura, "Secure multiparty computation using secret sharing scheme against consecutive computation," IPSJ SIG Technical Report, vol. 2017-CSEC-78, no. 37, July 2017.

Fundings

1. 2023-04 to 2026-03 | Grant

Japan Society for the Promotion of Science (Tokyo, JP)

Project: 秘密分散と暗号技術を用いた超高速な秘密計算及びその応用である秘匿検索の実現

URL: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K16884/

1. 2022-04 to 2023-03 | Grant

Tokyo University of Science (Tokyo, JP)

Project: 秘密分散を用いた高速な秘密計算法及びその応用である秘匿検索の実現