Towards a middleware design for efficient blockchain oracles selection

Goswami, Subhasish; Danish, Syed Muhammad; Zhang, Kaiwen

doi:10.1109/bcca55292.2022.9922433

Cited by 5 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Invoking the reputation contract is crucial for examining the historical performance of oracles to select suitable oracles for service requesters. The selection of oracles is then executed based on specified attributes within the service request, including data sources, response time, and specific data requirements [ 32 ]. After the fulfillment of a service request, the Chainlink network records the completion, generates a data report, and adjusts the reputation score of the serving oracle by invoking the reputation contract.…”

Section: Experimental Design and Results Analysismentioning

confidence: 99%

Research on Oracle Technology Based on Multi-Threshold Aggregate Signature Algorithm and Enhanced Trustworthy Oracle Reputation Mechanism

Wang,

Gao,

2024

Sensors

View full text Add to dashboard Cite

In the realm of IoT sensor data security, particularly in areas like agricultural product traceability, the challenges of ensuring product origin and quality are paramount. This research presents a novel blockchain oracle solution integrating an enhanced MTAS signature algorithm derived from the Schnorr signature algorithm. The key improvement lies in the automatic adaptation of flexible threshold values based on the current scenario, catering to diverse security and efficiency requirements. Utilizing the continuously increasing block height of the blockchain as a pivotal blinding parameter, our approach strengthens signature verifiability and security. By combining the block height with signature parameters, we devise a distinctive signing scheme reliant on a globally immutable timestamp. Additionally, this study introduces a reliable oracle reputation mechanism for monitoring and assessing oracle node performance, maintaining both local and global reputations. This mechanism leverages smart contracts to evaluate each oracle’s historical service, penalizing or removing nodes engaged in inappropriate behaviors. Experimental results highlight the innovative contributions of our approach to enhancing on-chain efficiency and fortifying security during the on-chain process, offering promising advancements for secure and efficient IoT sensor data transmission.

show abstract

Section: Experimental Design and Results Analysismentioning

confidence: 99%