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Book ChapterDOI

A Survey of Attacks on Ethereum Smart Contracts SoK

Nicola Atzei, +2 more
- Vol. 10204, pp 164-186
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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.

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Citations
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Generalizable Layered Blockchain Architecture for Health Care Applications: Development, Case Studies, and Evaluation.

TL;DR: A generalized layered blockchain architecture that provides data coordination functions, including data requests, permission granting, data exchange, and usage tracking, for a wide spectrum of health care application developments is proposed.
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A Blockchain-Based Data Hiding Method for Data Protection in Digital Video.

TL;DR: This paper proposes a blockchain-based data hiding method which interact with the blockchain record, where the external chain is utilized as the controller for the privacy data into carrier video, and removes the need for a trusted third party, enabling autonomous control of privacy data.
Posted Content

A Survey of Security Vulnerabilities in Ethereum Smart Contracts.

TL;DR: Eight vulnerabilities that are specific to the application level of BT are explained by analyzing the past exploitation case scenarios of these security vulnerabilities by investigating the availability of detection tools for identifying these vulnerabilities and lack thereof.
Book ChapterDOI

A minimal core calculus for Solidity contracts

TL;DR: In this paper, a minimal calculus for Solidity contracts is proposed, which extends an imperative core with a single primitive to transfer currency and invoke contract procedures, and builds upon this formalisation to give semantics to the Ethereum blockchain.
Proceedings ArticleDOI

ÆGIS: Smart Shielding of Smart Contracts

TL;DR: AE GIS as mentioned in this paper is a tool that shields smart contracts and users on the blockchain from being exploited, by reverting transactions in real-time based on pattern matching, thus leveraging the benefits of tamperresistance and transparency provided by blockchain.
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

Gavin Wood
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

Nick Szabo
- 01 Sep 1997 - 
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.
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Why ethereum is important?

The provided paper does not explicitly mention why Ethereum is important.