Book ChapterDOI
A Survey of Attacks on Ethereum Smart Contracts SoK
Nicola Atzei,Massimo Bartoletti,Tiziana Cimoli +2 more
- Vol. 10204, pp 164-186
TLDR
This work analyses the security vulnerabilities of Ethereum smart contracts, providing a taxonomy of common programming pitfalls which may lead to vulnerabilities, and shows a series of attacks which exploit these vulnerabilities, allowing an adversary to steal money or cause other damage.Abstract:
Smart contracts are computer programs that can be correctly executed by a network of mutually distrusting nodes, without the need of an external trusted authority. Since smart contracts handle and transfer assets of considerable value, besides their correct execution it is also crucial that their implementation is secure against attacks which aim at stealing or tampering the assets. We study this problem in Ethereum, the most well-known and used framework for smart contracts so far. We analyse the security vulnerabilities of Ethereum smart contracts, providing a taxonomy of common programming pitfalls which may lead to vulnerabilities. We show a series of attacks which exploit these vulnerabilities, allowing an adversary to steal money or cause other damage.read more
Citations
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Journal ArticleDOI
A survey on blockchain‐enabled smart grids: advances, applications and challenges
TL;DR: In this paper, the authors provide a multi-dimensional review on the technological advances of the blockchain in smart grids, including company projects and use cases, and the security threat issues in smart grid, Ethereum Virtual Machine (i.e., the operating environment of consensus mechanisms), and smart contracts are analyzed, with a brief conclusion to manifest the prior tasks in building secure blockchain-based infrastructures in smart networks.
Proceedings ArticleDOI
Reentrancy Vulnerability Identification in Ethereum Smart Contracts
TL;DR: This framework generates an attacker contract based on the ABI specifications of smart contracts under test and analyzes the contract interaction to precisely report Reentrancy vulnerability, thus achieving increased performance and reduced false positives.
Journal ArticleDOI
Long-term verification of signatures based on a blockchain
Tomasz Hyla,Jerzy Pejaś +1 more
TL;DR: The Round-based Blockchain Time-stamping Scheme is proposed that is scalable, i.e., it requires embedding a constant number of bytes into a blockchain independent from a number of input documents, to meet non-repudiation requirements for digitally signed documents.
Posted Content
Smart Contract Repair
TL;DR: This work presents the first general-purpose automated smart contract repair approach that is also gas-aware, and considers the gas usage of the candidate patches by leveraging the novel notion of gas dominance relationship.
Book ChapterDOI
On the Feasibility of Decentralized Derivatives Markets
TL;DR: Velocity as discussed by the authors is a decentralized market deployed on Ethereum for trading a custom type of derivative option, which uses Solidity smart contracts to enable the smart contract to work, and also implements a price fetching tool called PriceGeth.
References
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Book
Isabelle/HOL: A Proof Assistant for Higher-Order Logic
TL;DR: This presentation discusses Functional Programming in HOL, which aims to provide students with an understanding of the programming language through the lens of Haskell.
Ethereum: A Secure Decentralised Generalised Transaction Ledger
TL;DR: Ethereum as mentioned in this paper is a transactional singleton machine with shared state, which can be seen as a simple application on a decentralised, but singleton, compute resource, and it provides a plurality of resources, each with a distinct state and operating code but able to interact through a message-passing framework with others.
Journal ArticleDOI
Formalizing and Securing Relationships on Public Networks
TL;DR: Protocols with application in important contracting areas, including credit, content rights management, payment systems, and contracts with bearer are discussed.
Proceedings ArticleDOI
On the Security and Performance of Proof of Work Blockchains
TL;DR: This paper introduces a novel quantitative framework to analyse the security and performance implications of various consensus and network parameters of PoW blockchains and devise optimal adversarial strategies for double-spending and selfish mining while taking into account real world constraints.
Proceedings ArticleDOI
Making Smart Contracts Smarter
TL;DR: This paper investigates the security of running smart contracts based on Ethereum in an open distributed network like those of cryptocurrencies, and proposes ways to enhance the operational semantics of Ethereum to make contracts less vulnerable.