ShadowEth: Private Smart Contract on Public Blockchain

Yuan, Rui; Xia, Yubin; Chen, Haibo; Zang, Binyu; Xie, Jan

doi:10.1007/s11390-018-1839-y

Cited by 105 publications

(71 citation statements)

References 9 publications

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“…Hawk [33] divides Smart Contract into public and private parts and secure private input using zero-knowledge proofs, but requires a centralized trusted manager to operate. Furthermore, ShadowEth [31] allows processing confidential Smart Contract data using Trusted Execution Environments (TEE). However, such a scheme requires users to trust the hardware vendor and can expose the system to TEE's vulnerabilities [37], [38].…”

Section: Related Workmentioning

confidence: 99%

AStERISK: Auction-based Shared Economy ResolutIon Markets for Blockchain Platforms

Sonnino¹,

Król²,

Tasiopoulos³

et al. 2019

Proceedings 2019 Workshop on Decentralized IoT Systems and Security

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Recent developments in blockchains and edge computing allows to deploy decentralized shared economy with utility tokens, where altcoins secure and reward useful work. However, the majority of the systems being developed, does not provide mechanisms to pair workers and clients, or rely on manual and insecure resolution. AStERISK bridges this gap allowing to perform sealed-bid auctions on blockchains, automatically determine the most optimal price for services, and assign clients to the most suitable workers. AStERISK allows workers to specify a minimal price for their work, and hide submitted bids as well the identity of the bidders without relying on any centralized party at any point. We provide a smart contract implementation of AStERISK and show how to deploy it within the Filecoin network, and perform an initial benchmark on Chainspace.

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Section: Related Workmentioning

confidence: 99%

AStERISK: Auction-based Shared Economy ResolutIon Markets for Blockchain Platforms

Sonnino¹,

Król²,

Tasiopoulos³

et al. 2019

Proceedings 2019 Workshop on Decentralized IoT Systems and Security

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“…These limitations are beyond the scope of this work, and deferred to future work. AStERISK is vulnerable if more than the threshold number of authorities are malicious; colluding authorities could create credentials to steal all the coins in the buffer of the smart ShadowEth [31] Intel SGX [32] Hawk [33] None Strain [34] None Galal et al [35] None Bogetoft et al [36] None Filecoin [16] None AStERISK None : relies on a trusted 3 rd party, : relies on a trusted 3 rd party for only one (or some) of the properties described in Section III, : does not rely on any trusted 3 rd party.…”

Section: Limitationsmentioning

confidence: 99%

AStERISK: Auction-based Shared Economy ResolutIon Markets for Blockchain Platforms

Sonnino¹,

Król²,

Tasiopoulos³

et al. 2019

Proceedings 2019 Workshop on Decentralized IoT Systems and Security

View full text Add to dashboard Cite

Recent developments in blockchains and edge computing allow deployment of decentralized shared economy platforms with utility token support, where tokens (in the form of altcoins) secure and reward useful work. However, the majority of the systems being developed, does not provide mechanisms to pair those who offer services (workers) and those who request them (clients), or rely on manual and insecure resolution. AStERISK bridges this gap allowing to perform sealed-bid auctions on blockchains, automatically determine the most optimal price for services, and assign clients to the most suitable workers. AStERISK allows workers to specify a minimal price for their work, and hide submitted bids as well the identity of the bidders without relying on any centralized party at any point. We provide a smart contract implementation of AStERISK and show how to deploy it within the Filecoin network, and perform an initial benchmark on Chainspace, an efficient, new smart contract platform.

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“…ShadowEth system [10] is an extension technology of smart systems providing contract [2,4] in such a way that it provides protection / confidentiality of the data in the smart contract in three areas: specification, performance and state of the contract.…”

Section: System Shadowethmentioning

confidence: 99%

“…The main task of the ShadowEth system, described in [10,ShadowEth], is to provide a confidential platform for private smart-contract, which can be stored in the generally available accounting book of the Ethereum currency. The system offers confidentiality in three areas: specification, performance and smart-contract status.…”

Section: B Shadoweth Protocolmentioning

confidence: 99%

See 1 more Smart Citation

A Representative Fragment Method of Analyzing Complex Systems of Smart Contracts

Horodelski¹,

Filipkowski²

2019

ACPS

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The paper presents the use of states of explosion-proof method for analyzing the behavior of systems that provide smart contract technology. The selected example system is ShadowEth, whose main task is to ensure sufficient confidentiality of information stored in the Ethereum blockchain currency. The Petri network model for the ShadowEth system has been presented. The system properties according to the specifications have been defined. Properties described in a certain extension of the TCTL logic and verification have been carried out.

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ShadowEth: Private Smart Contract on Public Blockchain

Cited by 105 publications

References 9 publications

AStERISK: Auction-based Shared Economy ResolutIon Markets for Blockchain Platforms

AStERISK: Auction-based Shared Economy ResolutIon Markets for Blockchain Platforms

AStERISK: Auction-based Shared Economy ResolutIon Markets for Blockchain Platforms

A Representative Fragment Method of Analyzing Complex Systems of Smart Contracts

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