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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Book ChapterDOI
A Multilayer Approach to the Security of Blockchain Networks of the Future
A. T. Bogdanov,Alexander B. Degtyarev,Nadezhda Shchegoleva,Vladimir Korkhov,Valery Khvatov,Nodir Zaynalov,J. Kiyamov,A. Dik +7 more
TL;DR: In this article , the authors present a vision of the architecture of integration gateways using the ODAP-2PC protocol, which provides crash fault-tolerance for the integration of various networks.
Proceedings ArticleDOI
Exploiting Deep Learning Based Classification Model for Detecting Fraudulent Schemes over Ethereum Blockchain
TL;DR: In this paper , a deep learning based blockchain fraud detection model based on the Ethereum blockchain transaction data is proposed, which consists of a Long Short-Term Memory (LSTM) unit and a dense unit to detect the fraudulent transactions.
Posted Content
LedgerGuard: Improving Blockchain Ledger Dependability
TL;DR: This paper proposes LedgerGuard, a tool to maintain ledger integrity by detecting corrupted blocks and recovering these blocks by synchronizing with rest of the network.
Book ChapterDOI
Specification is Law: Safe Creation and Upgrade of Ethereum Smart Contracts
TL;DR: In this article , the authors combine elements from the code-is-law paradigm and the specification is law paradigm to create a systematic framework that moves away from code is law and gives rise to a new "specification is law" paradigm, allowing contracts to be created and upgraded but only if they meet a corresponding formal specification.
Posted Content
A Taxonomy for Understanding the Security Technical Debts in Blockchain Based Systems.
Sabreen Ahmadjee,Rami Bahsoon +1 more
TL;DR: It is argued that sub-optimal and ill-informed design decisions and choices of blockchain components and their configurations including smart contracts, key management, cryptographic and consensus mechanisms, on-chain vs. off chain storage choices can introduce security technical debt into the system.
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.