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Saturday, November 10 • 13:50 - 14:30
[ja][B] A new protocol for assuring smart contract behaviour

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A new protocol for assuring smart contract behaviour
デプロイされたスマートコントラクトのセキュリティ・プロトコール

Smart contracts are immutable pieces of code on a blockchain which often handle large sums of money. Pre-deployment, many contracts undergo security audits and are subjected to static analysis in order to find errors and issues; however, there are no options for ensuring correctness of a contract once it has been deployed. This talk describes a novel decentralized protocol that provides a layer of economic assurance for the correctness of a deployed smart contract. The protocol deems a smart contract to be correct if it does not perform some user-defined behaviour. The protocol periodically rewards participants who place a collateral stake on the behaviour of a smart contract; participants lose this stake in the event that the contract misbehaves. The protocol enables economic assurance for arbitrary stakeholders of a contract, allowing these stakeholders to recover staked funds if a contract misbehaves. Stakeholders are not limited to the contract writers or owners, and anyone can stake collateral.

Speakers
avatar for Yohei Oka

Yohei Oka

Forward Deployed Engineer, Quantstamp
Yohei is a full stack engineer with experience working at both startups and large tech companies. Before joining Quantstamp, Yohei was in Seattle working on Amazon Go, the no-checkout convenience store. He first got involved with blockchain through arbitrage and bot-trading and is... Read More →


Saturday November 10, 2018 13:50 - 14:30 JST
Track B
  Tech Talk
  • Lang JA

Attendees (2)