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Erschienen in:
2018 | OriginalPaper | Buchkapitel
EthIR: A Framework for High-Level Analysis of Ethereum Bytecode
verfasst von : Elvira Albert, Pablo Gordillo, Benjamin Livshits, Albert Rubio, Ilya Sergey
Erschienen in: Automated Technology for Verification and Analysis
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Abstract
Analyzing Ethereum bytecode, rather than the source code from which it was generated, is a necessity when: (1) the source code is not available (e.g., the blockchain only stores the bytecode), (2) the information to be gathered in the analysis is only visible at the level of bytecode (e.g., gas consumption is specified at the level of EVM instructions), (3) the analysis results may be affected by optimizations performed by the compiler (thus the analysis should be done ideally after compilation). This paper presents EthIR, a framework for analyzing Ethereum bytecode, which relies on (an extension of) Oyente, a tool that generates CFGs; EthIR produces from the CFGs, a rule-based representation (RBR) of the bytecode that enables the application of (existing) high-level analyses to infer properties of EVM code.