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
More filters
Book ChapterDOI
A Semantic Framework for the Security Analysis of Ethereum Smart Contracts
TL;DR: The first complete small-step semantics of EVM bytecode is presented, which is formalized in the F* proof assistant, obtaining executable code that is successfully validate against the official Ethereum test suite.
Journal ArticleDOI
Blockchain-Based Data Preservation System for Medical Data.
TL;DR: This paper proposes a novel blockchain-based data preservation system (DPS) for medical data that uses the blockchain framework to provide a reliable storage solution to ensure the primitiveness and verifiability of stored data while preserving privacy for users.
Proceedings ArticleDOI
ReGuard: finding reentrancy bugs in smart contracts
TL;DR: ReGuard, an fuzzing-based analyzer to automatically detect reentrancy bugs in Ethereum smart contracts is presented, which performs fuzz testing on smart contracts by iteratively generating random but diverse transactions and dynamically identifes reENTrancy vulnerabilities.
Proceedings ArticleDOI
Blockchain Based Smart Contracts : A Systematic Mapping Study
Maher Alharby,Aad van Moorsel +1 more
TL;DR: A systematic mapping study to collect all research that is relevant to smart contracts from a technical perspective and identifies four key issues, namely, codifying, security, privacy and performance issues.
Journal ArticleDOI
Privacy-Preserving Solutions for Blockchain: Review and Challenges
Jorge Bernal Bernabe,José Luis Cánovas,Jose L. Hernandez-Ramos,Rafael Torres Moreno,Antonio F. Skarmeta +4 more
TL;DR: The survey covers privacy techniques in public and permissionless blockchains, e.g. Bitcoin and Ethereum, as well as privacy-preserving research proposals and solutions in permissioned and private blockchains.
References
More filters
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.