Detecting Isolation Bugs via Transaction Oracle Construction

Dou, Wensheng; Cui, Ziyu; Dai, Qianwang; Song, Jiansen; Wang, Dong; Yougang, Gao; Wang, Wei; Wei, Jun; Chen, Lei; Wang, H.; Zhong, Hua; Huang, Tao

doi:10.1109/icse48619.2023.00101

Cited by 9 publications

(1 citation statement)

References 36 publications

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“…In order to enhance the trustworthiness of the oracle system, the Enhanced Trustworthy Oracle Reputation Mechanism (ETORM) implements a reputation contract. This reputation contract is used to track the historical service performance of each oracle in decentralized oracle systems, which are composed of multiple oracles forming a service network [ 29 ]. The purpose of tracking the historical service performance is to identify improper behavior, including free-riding by copying hash values from other oracles, mirror attacks, and Sybil attacks [ 30 ].…”

Section: Methodsmentioning

confidence: 99%

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

Wang,

Gao,

2024

Sensors

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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.

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Section: Methodsmentioning

confidence: 99%