Earlier work (2022–2012)
2022
The 21st IEEE International Conference on Trust, Security and Privacy in Computing and Communications, (Trustcom 2022) Wuhan, China, December 9-11, 2022 2022 CORE 2026 B CCF 2026 C
A hash-proof system with auxiliary inputs and applications to cryptographic protocols requiring security under additional leakage.
Cite Cailing Cai, Tsz Hon Yuen, and Siu-Ming Yiu. “Hash Proof System with Auxiliary Inputs and Its Application.” In 2022 IEEE International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom), pp. 52–59, 2022.
The 27th Australasian Conference on Information Security and Privacy, (ACISP 2022) Wollongong, Australia, November 28-30, 2022 2022 CORE 2026 Australasian B CCF 2026 C
Multi-signature constructions for ECDSA that support secure joint signing and blockchain applications.
Cite Shimin Pan, Kwan Yin Chan, Handong Cui, and Tsz Hon Yuen. “Multi-signatures for ECDSA and Its Applications in Blockchain.” In Information Security and Privacy, Lecture Notes in Computer Science, vol. 13494, pp. 265–285, 2022.
The 21st International Conference on Cryptology and Network Security, (CANS 2022) Abu Dhabi, UAE, November 13-16, 2022 2022 CORE 2026 B
An attribute-based anonymous-credential scheme optimised for efficient single-use and multi-use credential presentation.
Cite Kwan Yin Chan and Tsz Hon Yuen. “Attribute-Based Anonymous Credential: Optimization for Single-Use and Multi-Use.” In Cryptology and Network Security, Lecture Notes in Computer Science, vol. 13641, pp. 89–121, 2022.
The 17th International Conference on Wireless Algorithms, Systems, and Applications, (WASA 2022) Dalian, China, October 28-30, 2022 2022 CCF 2026 C
A private set-intersection approach based on greatest-common-divisor filtering that avoids conventional encryption operations.
Cite Mingli Wu and Tsz Hon Yuen. “GCD-Filter: Private Set Intersection Without Encryption.” In Wireless Algorithms, Systems, and Applications, Lecture Notes in Computer Science, vol. 13472, pp. 429–440, 2022.
The 20th International Conference on Applied Cryptography and Network Security, (ACNS 2022) Rome, Italy, June 20-23, 2022 2022 CORE 2026 B CCF 2026 C
An identity-based encryption construction that strengthens dual-system encryption against polynomial related-key attacks.
Cite Tsz Hon Yuen, Cong Zhang, and Sherman S. M. Chow. “Don’t Tamper with Dual System Encryption (Beyond Polynomial Related-Key Security of IBE).” In Applied Cryptography and Network Security, Lecture Notes in Computer Science, vol. 13269, pp. 419–439, 2022.
Heliyon, vol. 8, no. 6 2022
A prospective study evaluating a mobile chatbot app for teaching clinical history taking to medical students.
Cite Michael Co, Tsz Hon John Yuen, and Ho Hung Cheung. “Using Clinical History Taking Chatbot Mobile App for Clinical Bedside Teachings: A Prospective Case Control Study.” Heliyon, vol. 8, no. 6, article e09751, 2022.
The ACM Asia Conference on Computer and Communications Security, (AsiaCCS 2022) Nagasaki, Japan, May 30 - June 3, 2022 2022 CORE 2026 A CCF 2026 B
A leakage-resilient identity-based encryption scheme that supports security in the multi-challenge setting.
Cite Cailing Cai, Xianrui Qin, Tsz Hon Yuen, and Siu-Ming Yiu. “Tight Leakage-Resilient Identity-based Encryption under Multi-challenge Setting.” In Proceedings of the 2022 ACM Asia Conference on Computer and Communications Security, pp. 42–53, 2022.
2021
International Conference on Information Security Practice and Experience (ISPEC 2021). Nanjing , China, December 17-19, 2021. 2021 CORE 2026 C
A zero-knowledge-proof-based contact-tracing protocol for mobile devices that protects users’ privacy during exposure notification.
Cite Joseph K. Liu, Man Ho Au, Tsz Hon Yuen, Cong Zuo, Jiawei Wang, Amin Sakzad, Xiapu Luo, Li Li, and Kim-Kwang Raymond Choo. “Privacy-Preserving Contact Tracing Protocol for Mobile Devices: A Zero-Knowledge Proof Approach.” In Information Security Practice and Experience, Lecture Notes in Computer Science, vol. 13107, pp. 327–344, 2021.
The 26th Australasian Conference on Information Security and Privacy, (ACISP 2021) Perth, Australia, December 1-3, 2021 2021 CORE 2026 Australasian B CCF 2026 C
A trustless GQ-based multi-signature scheme that identifies participants responsible for an aborted signing session.
Cite Handong Cui and Tsz Hon Yuen. “A Trustless GQ Multi-Signature Scheme with Identifiable Abort.” In Information Security and Privacy, Lecture Notes in Computer Science, vol. 13090, pp. 673–693, 2021.
The ACM Conference on Computer and Communications Security, (CCS 2021), Seoul, South Korea, November 15-19, 2021 2021 CORE 2026 A* CCF 2026 A
An online-friendly two-party ECDSA protocol that improves the practicality of collaborative digital signing.
Cite Haiyang Xue, Man Ho Au, Xiang Xie, Tsz Hon Yuen, and Handong Cui. “Efficient Online-friendly Two-Party ECDSA Signature.” In Proceedings of the 2021 ACM SIGSAC Conference on Computer and Communications Security, pp. 558–573, 2021.
The 26th European Symposium on Research in Computer Security, (ESORICS 2021), Virtual, October 4-8, 2021 2021 CORE 2026 A CCF 2026 B
A security analysis and construction for blind ECDSA that establishes one-more unforgeability.
Cite Xianrui Qin, Cailing Cai, and Tsz Hon Yuen. “One-More Unforgeability of Blind ECDSA.” In Computer Security – ESORICS 2021, Lecture Notes in Computer Science, vol. 12973, pp. 313–331, 2021.
The 20th IEEE International Conference on Trust, Security and Privacy in Computing and Communications, (TrustCom 2021) Shenyang, China, August 18-20, 2021 2021 CORE 2026 B CCF 2026 C
An analysis of SM2 and GOST signature schemes under related-key attacks, with corresponding security considerations.
Cite Handong Cui, Xianrui Qin, Cailing Cai, and Tsz Hon Yuen. “Security on SM2 and GOST Signatures against Related Key Attacks.” In Proceedings of the 2021 IEEE 20th International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom), pp. 155–163, 2021.
Crypto 2021, Virtual, Aug 15-19, 2021 2021 CORE 2026 A* CCF 2026 A
A generic ring-signature framework with efficient constructions that provide signer anonymity without random oracles.
Cite Tsz Hon Yuen, Muhammed F. Esgin, Joseph K. Liu, Man Ho Au, and Zhimin Ding. “DualRing: Generic Construction of Ring Signatures with Efficient Instantiations.” In Advances in Cryptology – CRYPTO 2021, Lecture Notes in Computer Science, vol. 12825, pp. 251–281, 2021.
The 24th International Conference on Practice and Theory of Public-Key Cryptography, (PKC 2021) Virtual Event, May 10-13, 2021 2021 CORE 2026 B CCF 2026 B
Compact zero-knowledge proofs for threshold ECDSA that avoid a trusted setup while supporting practical collaborative signing.
Cite Tsz Hon Yuen, Handong Cui, and Xiang Xie. “Compact Zero-Knowledge Proofs for Threshold ECDSA with Trustless Setup.” In Public-Key Cryptography – PKC 2021, Lecture Notes in Computer Science, vol. 12710, pp. 481–511, 2021.
2020
The 19th IEEE International Conference on Trust, Security and Privacy in Computing and Communications (IEEE TrustCom 2020) Guangzhou, China, December 29, 2020 - January 1, 2021 2020 CORE 2026 B CCF 2026 C
An address-based signature scheme for authenticating identities and messages through address-derived cryptographic mechanisms.
Cite Handong Cui and Tsz Hon Yuen. “Address-Based Signature.” In Proceedings of the 2020 IEEE 19th International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom), pp. 884–891, 2020.
The 23rd Information Security Conference (ISC) 2020, 16–20 December 2020 2020 CORE 2026 C CCF 2026 C
Compatible certificateless and identity-based cryptosystems for secure communication across heterogeneous Internet-of-Things environments.
Cite Rouzbeh Behnia, Attila Altay Yavuz, Muslum Ozgur Ozmen, and Tsz Hon Yuen. “Compatible Certificateless and Identity-Based Cryptosystems for Heterogeneous IoT.” In Information Security, Lecture Notes in Computer Science, vol. 12472, pp. 39–58, 2020.
The 16th International Conference on Information Security and Cryptology (Inscrypt 2020), Guangzhou, China, December 11-14, 2020 2020 CCF 2026 C
Location-privacy-preserving schemes for mobile social networks that use ring signatures to protect users’ identities and whereabouts.
Cite Cailing Cai, Tsz Hon Yuen, Handong Cui, Mingli Wu, and Siu-Ming Yiu. “LPPRS: New Location Privacy Preserving Schemes Based on Ring Signature over Mobile Social Networks.” In Information Security and Cryptology, Lecture Notes in Computer Science, vol. 12612, pp. 288–303, 2021.
Future Generation Computer Systems. Volume 112, November 2020, Pages 913-929 2020 CORE 2020 A CCF 2026 C
A private, authenticated, and auditable consortium-blockchain design with an implementation for accountable enterprise data management.
Cite Tsz Hon Yuen. “PAChain: Private, Authenticated & Auditable Consortium Blockchain and Its Implementation.” Future Generation Computer Systems, vol. 112, pp. 913–929, 2020.
The 24-th International Conference on Financial Cryptography and Data Security (FC 2020). Kota Kinabalu, Sabah, Malaysia. February 10–14, 2020 2020 CORE 2026 A CCF 2026 C
A compact confidential-transaction protocol for blockchain systems that reduces transaction size while strengthening privacy and security.
Cite Tsz Hon Yuen, Shi-feng Sun, Joseph K. Liu, Man Ho Au, Muhammed F. Esgin, Qingzhao Zhang, and Dawu Gu. “RingCT 3.0 for Blockchain Confidential Transaction: Shorter Size and Stronger Security.” In Financial Cryptography and Data Security, Lecture Notes in Computer Science, vol. 12059, pp. 464–483, 2020.
IEEE Transactions on Dependable and Secure Computing 2020 CORE 2020 A CCF 2026 A
A practical non-interactive searchable-encryption system that supports secure search across encrypted data contributed by multiple clients.
Cite Shifeng Sun, Cong Zuo, Joseph K. Liu, Amin Sakzad, Ron Steinfeld, Tsz Hon Yuen, Xingliang Yuan, and Dawu Gu. “Non-Interactive Multi-Client Searchable Encryption: Realization and Implementation.” IEEE Transactions on Dependable and Secure Computing, vol. 19, no. 1, pp. 452–467, 2022.
Concurrency and Computation Practice and Experience 2020 CORE 2020 B CCF 2026 C
A server-aided revocable attribute-based encryption scheme for cloud services that supports efficient access revocation.
Cite Hui Cui, Tsz Hon Yuen, Robert H. Deng, and Guilin Wang. “Server-aided Revocable Attribute-based Encryption for Cloud Computing Services.” Concurrency and Computation: Practice and Experience, vol. 32, no. 14, article e5680, 2020.
2019
The 13th International Conference on Network and System Security (NSS 2019). Sapporo, Japan. 15-18 December 2019 2019 CORE 2026 B CCF 2026 C
A study of strong known related-key attacks against ECDSA and their implications for signature-scheme security.
Cite Tsz Hon Yuen and Siu-Ming Yiu. “Strong Known Related-Key Attacks and the Security of ECDSA.” In Network and System Security, Lecture Notes in Computer Science, vol. 11928, pp. 130–145, 2019.
2019 IEEE Conference on Dependable and Secure Computing (DSC 2019), Hangzhou, China 2019
A privacy-preserving approach to perturbing big data using inner-product encryption.
Cite Mingli Wu and Tsz Hon Yuen. “Securely Perturb Big Data by Using Inner Product Encryption.” In Proceedings of the 2019 IEEE Conference on Dependable and Secure Computing (DSC 2019), pp. 1–8, 2019.
The 18th International Conference on Cryptology and Network Security (CANS 2019), Fuzhou, China, 25-27 October 2019 2019 CORE 2026 B
A private, authenticated, and auditable consortium-blockchain design for accountable data management and secure collaboration.
Cite Tsz Hon Yuen. “PAChain: Private, Authenticated Auditable Consortium Blockchain.” In Cryptology and Network Security, Lecture Notes in Computer Science, vol. 11829, pp. 214–234, 2019.
2018
The 14th International Conference on Information Security and Cryptology (Inscrypt 2018), Fuzhou, China, December 14-17, 2018. Proceedings 2018 CCF 2026 C
An analysis of anonymity-reduction attacks against Monero that examines how transaction information can weaken user privacy.
Cite Dimaz Ankaa Wijaya, Joseph K. Liu, Ron Steinfeld, Dongxi Liu, and Tsz Hon Yuen. “Anonymity Reduction Attacks To Monero.” In Information Security and Cryptology, Lecture Notes in Computer Science, vol. 11449, pp. 86–100, 2019.
The 14th International Conference on Information Security Practice and Experience (ISPEC 2018), Tokyo, Japan, September 25-27, 2018. Proceedings 2018 CORE 2026 C
A compact ring-signature construction in the standard model for privacy-preserving blockchain applications.
Cite Hao Ren, Peng Zhang, Qingchun Shentu, Joseph K. Liu, and Tsz Hon Yuen. “Compact Ring Signature in the Standard Model for Blockchain.” In Information Security Practice and Experience, Lecture Notes in Computer Science, vol. 11125, pp. 50–65, 2018.
Applied Cryptography and Network Security - 16th International Conference, ACNS 2018, Leuven, Belgium, July 2-4, 2018, Proceedings 2018 CORE 2026 B CCF 2026 C
A time-based, directly revocable ciphertext-policy attribute-based encryption scheme with a short revocation list.
Cite Joseph K. Liu, Tsz Hon Yuen, Peng Zhang, and Kaitai Liang. “Time-Based Direct Revocable Ciphertext-Policy Attribute-Based Encryption with Short Revocation List.” In Applied Cryptography and Network Security, Lecture Notes in Computer Science, vol. 10892, pp. 516–534, 2018.
Third International Congress on Information and Communication Technology (ICICT 2018), London, United Kingdom 2018
A certificateless undeniable-signature scheme with security mediation and immediate revocation.
Cite Tsz Hon Yuen and Swee-Huay Heng. “Security-Mediated Certificateless Undeniable Signature Scheme.” In Third International Congress on Information and Communication Technology, Advances in Intelligent Systems and Computing, vol. 797, pp. 25–32, 2019.
2017
Journal of Computer and System Sciences 2017 CORE 2020 A* CCF 2026 B
A cryptographic framework for securely sharing personal health records through cloud systems with fine-grained access control.
Cite Man Ho Au, Tsz Hon Yuen, Joseph K. Liu, Willy Susilo, Xinyi Huang, Yang Xiang, and Zoe L. Jiang. “A General Framework for Secure Sharing of Personal Health Records in Cloud System.” Journal of Computer and System Sciences, vol. 90, pp. 46–62, 2017.
Computer Security - ESORICS 2017 - 22nd European Symposium on Research in Computer Security, Oslo, Norway, September 11-15, 2017, Proceedings, Part II 2017 CORE 2026 A CCF 2026 B
A compact accumulator-based RingCT protocol that provides confidential and linkable blockchain transactions for Monero.
Cite Shifeng Sun, Man Ho Au, Joseph K. Liu, and Tsz Hon Yuen. “RingCT 2.0: A Compact Accumulator-Based (Linkable Ring Signature) Protocol for Blockchain Cryptocurrency Monero.” In Computer Security – ESORICS 2017, Lecture Notes in Computer Science, vol. 10493, pp. 456–474, 2017.
2016
The Computer Journal 2016 CORE 2020 B CCF 2026 B
A privacy-preserving reservation system that enables electric-vehicle users to book charging stations without exposing sensitive information.
Cite Joseph K. Liu, Willy Susilo, Tsz Hon Yuen, Man Ho Au, Jun-bin Fang, Zoe L. Jiang, and Jianying Zhou. “Efficient Privacy-Preserving Charging Station Reservation System for Electric Vehicles.” The Computer Journal, vol. 59, no. 7, pp. 1040–1053, 2016.
Computer Security - ESORICS 2016 - 21st European Symposium on Research in Computer Security, Heraklion, Greece, September 26-30, 2016, Proceedings, Part I 2016 CORE 2026 A CCF 2026 B
A non-interactive multi-client searchable-encryption scheme that supports efficient Boolean queries over encrypted data.
Cite Shifeng Sun, Joseph K. Liu, Amin Sakzad, Ron Steinfeld, and Tsz Hon Yuen. “An Efficient Non-interactive Multi-client Searchable Encryption with Support for Boolean Queries.” In Computer Security – ESORICS 2016, Lecture Notes in Computer Science, vol. 9878, pp. 154–172, 2016.
Proceedings of the 11th ACM on Asia Conference on Computer and Communications Security, AsiaCCS 2016, Xian, China, May 30 - June 3, 2016 2016 CORE 2026 A CCF 2026 B
A construction of completely non-malleable chosen-ciphertext-secure public-key encryption for robust message confidentiality.
Cite Shifeng Sun, Dawu Gu, Joseph K. Liu, Udaya Parampalli, and Tsz Hon Yuen. “Efficient Construction of Completely Non-Malleable CCA Secure Public Key Encryption.” In Proceedings of the 11th ACM on Asia Conference on Computer and Communications Security, pp. 901–906, 2016.
2015
IEEE Transactions on Computers 2015 CORE 2020 A* CCF 2026 A
An attribute-based anonymous access-control scheme that supports repeated access while protecting users’ identities in cloud computing.
Cite Tsz Hon Yuen, Joseph K. Liu, Man Ho Au, Xinyi Huang, Willy Susilo, and Jianying Zhou. “k-Times Attribute-Based Anonymous Access Control for Cloud Computing.” IEEE Transactions on Computers, vol. 64, no. 9, pp. 2595–2608, 2015.
Proceedings of the 10th ACM Symposium on Information, Computer and Communications Security, ASIACCS 2015, Singapore, April 14-17, 2015 2015 CORE 2026 A CCF 2026 B
An analysis of related-randomness attacks against public-key cryptosystems and their implications for cryptographic design.
Cite Tsz Hon Yuen, Cong Zhang, Sherman S. M. Chow, and Siu-Ming Yiu. “Related Randomness Attacks for Public Key Cryptosystems.” In Proceedings of the 10th ACM Symposium on Information, Computer and Communications Security, pp. 215–223, 2015.
Public-Key Cryptography - PKC 2015 - 18th IACR International Conference on Practice and Theory in Public-Key Cryptography, Gaithersburg, MD, USA, March 30 - April 1, 2015, Proceedings 2015 CORE 2026 B CCF 2026 B
A continuous non-malleable key-derivation mechanism that strengthens cryptographic schemes against related-key attacks.
Cite Baodong Qin, Shengli Liu, Tsz Hon Yuen, Robert H. Deng, and Kefei Chen. “Continuous Non-malleable Key Derivation and Its Application to Related-Key Security.” In Public-Key Cryptography – PKC 2015, Lecture Notes in Computer Science, vol. 9020, pp. 557–578, 2015.
2014
Computer Security - ESORICS 2014 - 19th European Symposium on Research in Computer Security, Wroclaw, Poland, September 7-11, 2014. Proceedings, Part I 2014 CORE 2026 A CCF 2026 B
An identity-based encryption scheme resilient to post-challenge auxiliary-input leakage for secure cloud and sensor-network applications.
Cite Tsz Hon Yuen, Ye Zhang, Siu-Ming Yiu, and Joseph K. Liu. “Identity-Based Encryption with Post-Challenge Auxiliary Inputs for Secure Cloud Applications and Sensor Networks.” In Computer Security – ESORICS 2014, Lecture Notes in Computer Science, vol. 8712, pp. 130–147, 2014.
2013
The Computer Journal 2013 CORE 2020 B CCF 2026 B
An efficient linkable and threshold ring-signature construction that avoids random oracles while preserving signer anonymity.
Cite Tsz Hon Yuen, Joseph K. Liu, Man Ho Au, Willy Susilo, and Jianying Zhou. “Efficient Linkable and/or Threshold Ring Signature Without Random Oracles.” The Computer Journal, vol. 56, no. 4, pp. 407–421, 2013.
8th ACM Symposium on Information, Computer and Communications Security, ASIACCS 2013, Hangzhou, China - May 08 - 10, 2013 2013 CORE 2026 A CCF 2026 B
A threshold-cryptography framework that remains secure when multiple secret keys are exposed to bounded leakage.
Cite Cong Zhang, Tsz Hon Yuen, Hao Xiong, Sherman S. M. Chow, Siu-Ming Yiu, and Yi Jun He. “Multi-key Leakage-Resilient Threshold Cryptography.” In Proceedings of the 8th ACM SIGSAC Symposium on Information, Computer and Communications Security, pp. 61–70, 2013.
2012
Computer Security - ESORICS 2012 - 17th European Symposium on Research in Computer Security, Pisa, Italy, September 10-12, 2012. Proceedings 2012 CORE 2026 A CCF 2026 B
A privacy-enhanced anonymous-authentication scheme that combines reputation management with user revocation.
Cite Kin Ying Yu, Tsz Hon Yuen, Sherman S. M. Chow, Siu-Ming Yiu, and Lucas Chi Kwong Hui. “PE(AR)2: Privacy-Enhanced Anonymous Authentication with Reputation and Revocation.” In Computer Security – ESORICS 2012, Lecture Notes in Computer Science, vol. 7459, pp. 679–696, 2012.
Advances in Cryptology - EUROCRYPT 2012 - 31st Annual International Conference on the Theory and Applications of Cryptographic Techniques, Cambridge, UK, April 15-19, 2012. Proceedings 2012 CORE 2026 A* CCF 2026 A
An identity-based encryption scheme designed to remain secure under continual auxiliary leakage of secret information.
Cite Tsz Hon Yuen, Sherman S. M. Chow, Ye Zhang, and Siu-Ming Yiu. “Identity-Based Encryption Resilient to Continual Auxiliary Leakage.” In Advances in Cryptology – EUROCRYPT 2012, Lecture Notes in Computer Science, vol. 7237, pp. 117–134, 2012.
