4 papers
Cost-Effective Data Feeds to Blockchains via Workload-Adaptive Data Replication
Kai Li, Yuzhe Tang, Jiaqi Chen +3
Feeding external data to a blockchain, a.k.a. data feed, is an essential task to enable blockchain interoperability and support emerging cross-domain applications, notably stableco…
Authenticated Key-Value Stores with Hardware Enclaves
Yuzhe Tang, Ju Chen, Kai Li +2
Authenticated data storage on an untrusted platform is an important computing paradigm for cloud applications ranging from big-data outsourcing, to cryptocurrency and certificate t…
Secure Consistency Verification for Untrusted Cloud Storage by Public Blockchains
Kai Li, Yuzhe Tang, Beom Heyn Kim +1
This work presents ContractChecker, a Blockchain-based security protocol for verifying the storage consistency between the mutually distrusting cloud provider and clients. Unlike e…
Strongly Secure and Efficient Data Shuffle On Hardware Enclaves
Ju Chen, Yuzhe Tang, Hao Zhou
Mitigating memory-access attacks on the Intel SGX architecture is an important and open research problem. A natural notion of the mitigation is cache-miss obliviousness which requi…