Publications

April 2021
C. Zhang, C. Xu, H. Wang, J. Xu, and B. Choi, "Authenticated Keyword Search in Scalable Hybrid-Storage Blockchains," ICDE '21, Chania, Crete, Greece, 2021.
December 2020
K. Li, Y. Tang, J. Chen, Z. Yuan, C. Xu, and J. Xu. "Cost-Effective Data Feeds to Blockchains via Workload-Adaptive Data Replication," ACM/IFIP Middleware 2020.
June 2020
H. Wang, C. Xu, C. Zhang, and J. Xu. "vChain: A Blockchain System Ensuring Query Integrity," ACM SIGMOD '20, Portland, OR, USA, June 2020.
October 2019
K. Li, Y. Tang, B. H. Kim, and J. Xu. "Secure Consistency Verification for Untrusted Cloud Storage by Public Blockchains," 15th International Conference on Security and Privacy in Communication Networks (SecureComm '19), Orlando, FL, USA, 2019.
June 2019
C. Xu, C. Zhang, and J. Xu. "vChain: Enabling Verifiable Boolean Range Queries over Blockchain Databases," ACM SIGMOD '19, Amsterdam, Netherlands, 2019. (news)
April 2019
C. Zhang, C. Xu, J. Xu, Y. Tang, and B. Choi. "GEM^2-Tree: A Gas-Efficient Structure for Authenticated Range Queries in Blockchain," IEEE ICDE '19, Macau, China, 2019.
June 2018
C. Xu, J. Xu, H. Hu, and M. H. Au. "When Query Authentication Meets Fine-Grained Access Control: A Zero-Knowledge Approach," ACM SIGMOD '18, Houston, TX, USA, 2018.
April 2018
C. Xu, Q. Chen, H. Hu, J. Xu, and X. Hei. "Authenticating Aggregate Queries over Set-Valued Data with Confidentiality," IEEE Transactions on Knowledge and Data Engineering (TKDE), vol. 30, no. 4, pp. 630-644, 2018.
March 2018
Y. Tang, Z. Xing, C. Xu, J. Chen, and J. Xu. "Lightweight Logging over the Blockchain for Data-Intensive Applications," The Second Workshop on Trusted Smart Contracts at Financial Cryptography, Curaçao, March 2018.