从事信息安全，数据隐私保护，密码学及其应用等领域的研究工作多年，参与多项国家自然科学基金项目；发表相关SCI/EI论文近30篇，其中CCF-A类论文9篇；担任IEEE TDSC、IEEE TSC、IEEE ICC等国际高水平会议和期刊的审稿人。
主要发表论文：
[1] Guanxiong Ha, Chunfu Jia, Xiaowei Ge, Yuchen Chen, Xuan Shan. Similarity-aware Defense Scheme for Online Brute-force Attacks in Encrypted Deduplication[J]. IEEE Transactions on Dependable and Secure Computing (IEEE TDSC), DOI: 10.1109/TDSC.2025.3609514. (CCF-A，信息安全顶刊)
[2] Guanxiong Ha, Yuchen Chen, Chunfu Jia, Keyan Chen, Rongxi Wang, Qiaowen Jia. Scalable Encrypted Deduplication Based on Location-hiding Secret Sharing of Data Keys[J]. IEEE Transactions on Computers (IEEE TC), 2025, 74(11): 3710-3721. (CCF-A)
[3] Guanxiong Ha, Yuchen Chen, Zhipeng Cai, Chunfu Jia, Xuan Shan. Random Coding Responses for Resisting Side-channel Attacks in Client-side Deduplicated Cloud Storage[J]. IEEE Transactions on Services Computing (IEEE TSC), 2025, 18(3): 1697-1710. (CCF-A)
[4] Guanxiong Ha, Xiaowei Ge, Chunfu Jia, Yuchen Chen, Zhen Su. Revisiting SGX-based Encrypted Deduplication via PoW-Before-Encryption and Eliminating Redundant Computations[J]. IEEE Transactions on Dependable and Secure Computing (IEEE TDSC), 2025, 22(3): 2037-2053. (CCF-A，信息安全顶刊)
[5] Guanxiong Ha, Chunfu Jia, Yixuan Huang, Hang Chen, Ruiqi Li, Qiaowen Jia. Scalable and popularity-based secure deduplication schemes with fully random tags[J]. IEEE Transactions on Dependable and Secure Computing (IEEE TDSC), 2023, 21(3): 1484-1500. (CCF-A，信息安全顶刊)
[6] Xiaowei Ge, Guanxiong Ha, Chunfu Jia, Longwei Yang, Qiaowen Jia. PopeDup: Popularity-Based Encrypted Deduplication with Privacy Learning Attacks Resistance and Protected Thresholds[J]. IEEE Transactions on Information Forensics & Security (IEEE TIFS), 2025, 20: 7695-7708. (CCF-A，信息安全顶刊)
[7] Mingyue Li, Chunfu Jia, Ruizhong Du, Guanxiong Ha. Efficient Conjunctive Geometric Range Query over Encrypted Spatial Data with Learned Index[J]. IEEE Transactions on Computers (IEEE TC), (Early Accessed), DOI: 10.1109/TC.2025.3604470. (CCF-A)
[8] Caixia Ma, Weishuo Yuan, Xinyi Wang, Chunfu Jia, Ruizhong Du, Guanxiong Ha. Differentiated Privacy-preserving Task Assignment Scheme Based on Generative Adversarial Networks in Spatial Crowdsourcing[J]. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (IEEE TCAD), (Early Accessed), DOI: 10.1109/TCAD.2025.3638261. (CCF-A)
[9] Mingyue Li, Yuntao Li, Ruizhong Du, Chunfu Jia, Guanxiong Ha. Privacy-Preserving Image Retrieval With Deep Learning in Edge Computing[J]. IEEE Transactions on Mobile Computing (IEEE TMC), (Early Accessed), DOI: 10.1109/TMC.2025.3637042. (CCF-A)
[10] Guanxiong Ha, Chunfu Jia, Xiaowei Ge, Jiawei Yuan, Hang Chen, Mingyue Li. Efficient and Anonymous Password-Hardened Encryption Services[J]. Information Sciences, 2024, 653: 119771. (CCF-B)
[11] Caixia Ma, Chunfu Jia, Ruizhong Du, Guanxiong Ha, Mingyue Li. Privacy-preserving Searchable Encryption Based on Anonymization and Differential privacy[C]. //2024 IEEE International Conference on Web Services (IEEE ICWS 2024). Shenzhen, China, 2024:371-382. (CCF-B)
[12] Guanxiong Ha, Chunfu Jia, Yuchen Chen, Hang Chen, Mingyue Li. A secure client-side deduplication scheme based on updatable server-aided encryption[J]. IEEE Transactions on Cloud Computing (IEEE TCC，SCI 1区), 2023, 11(4): 3672-3684.
[13] Guanxiong Ha, Hang Chen, Chunfu Jia, Ruiqi Li, Qiaowen Jia. A secure deduplication scheme based on data popularity with fully random tags[C]. //2021 IEEE 20th International Conference on Trust, Security and Privacy in Computing and Communications (IEEE TrustCom 2021). Shenyang, China, 2021: 207-214.
[14] Guanxiong Ha, Hang Chen, Chunfu Jia*, Mingyue Li. Threat model and defense scheme for side-channel attacks in client-side deduplication[J]. Tsinghua Science and Technology, 2022, 28(1): 1-12. （SCI 2区）
[15] Xiaowei Ge, Guanxiong Ha, Chunfu Jia, Zhen Su. Privacy-Preserving Popularity-Based Deduplication against Malicious Behaviors of the Cloud[C]. //Proceedings of the 19th ACM Asia Conference on Computer and Communications Security (ASIA CCS '24). Singapore, Singapore, 2024: 245-256.
[16] Yuchen Chen, Chunfu Jia, Guanxiong Ha, Xuan Shan, Hang Chen. A Secure and lightweight client-side deduplication approach for resisting side channel attacks[C]. //2024 IEEE International Conference on Communications (ICC 2024). Denver, CO, USA, 2024: 1400-1406.
[17] Mingyue Li, Chunfu Jia, Ruizhong Du, Wei Shao, Guanxiong Ha*. Dse-rb: A privacy-preserving dynamic searchable encryption framework on redactable blockchain[J]. IEEE Transactions on Cloud Computing (IEEE TCC，SCI 1区), 2022, 11(3): 2856-2872.
[18] 哈冠雄, 贾巧雯, 陈杭, 贾春福. 无第三方服务器的基于数据流行度的加密去重方案[J]. 通信学报, 2022, 43(8): 17-29.
科研项目：
[1] 国家自然科学基金委员会，国家自然科学基金面上项目，加密重复数据删除系统关键问题研究（项目编号：61972073），参与人。
[2] 国家自然科学基金委员会，国家自然科学基金面上项目，Android应用防篡改新方法研究（项目编号：61972215），参与人。
[3] 国家自然科学基金资助项目，代码虚拟化的分析方法研究(项目编号：62172238)，参与人。
[4] 京津冀自然科学基金合作专项，面向可信数据空间的零信任数据安全架构关键技术研究(项目编号：25JJJJC0005)，参与人。
软件著作权：
[1] 计算机软件著作权登记：软件名称：相似度感知的加密去重系统V1.0，登记号：2022SR1559159，开发完成日期：2022-07-08；登记完成日期：2022-11-22。
[2] 计算机软件著作权登记：软件名称：无第三方服务器的基于数据流行度的加密去重系统V1.0，登记号：2022SR1559158，开发完成日期：2022-07-08；登记完成日期：2022-11-22。
[3] 计算机软件著作权登记：软件名称：基于授权去重和密钥更新的多群组用户云存储系统V1.0，登记号：2022SR1561698，开发完成日期：2022-07-08；登记完成日期：2022-11-23。
[4] 计算机软件著作权登记：软件名称：基于数据流行度的加密去重系统V1.0，登记号：2021SR1219360，开发完成日期：2021-06-25；登记完成日期：2021-08-17。