[논문]이더리움 스마트 계약 프로그램의 ERC-20 API 기능 명세의 관례상 표준과 적합성 리뷰 방법

문현아; 박수용

doi:10.3745/ktsde.2022.11.10.399

[국내논문] 이더리움 스마트 계약 프로그램의 ERC-20 API 기능 명세의 관례상 표준과 적합성 리뷰 방법
A De Facto Standard for ERC-20 API Functional Specifications and Its Conformance Review Method for Ethereum Smart Contracts 원문보기

정보처리학회논문지. KIPS transactions on software and data engineering. 소프트웨어 및 데이터 공학, v.11 no.10, 2022년, pp.399 - 408

초록
AI-Helper

이더리움 토큰 스마트 계약의 표준 API인 ERC-20은 지갑이나 분산 거래소같은 응용 프로그램들에서 호환성을 보장하기 위해 도입되었다. 그러나 API의 동작에 대한 엄밀한 기능 명세와 표준 적합성 리뷰 도구는 지원되고 있지 않아 호환성 취약점 문제가 발생할 수 있다. 본 논문에서는 이더리움 블록체인의 ERC-20 토큰 스마트 계약 프로그램들의 관례상 표준에 부합하는지 검사하는 새로운 리뷰 절차와 이를 지원하는 도구를 제안하였다. 기존 이더리움 블록체인 시장 상위 100개의 토큰 스마트 계약 프로그램들을 ERC-20 API 기능 동작면에서 분석한 지식을 바탕으로 관례상 표준을 명시적으로 정의하였고, 이렇게 정의된 관례상 표준으로 새로운 ERC-20 스마트 계약 프로그램을 체계적으로 리뷰할 수 있는 방법을 설계할 수 있었다. 이 리뷰 방법을 지원하는 도구를 개발하고 벤치마크 프로그램에 대해 실험 평가하였다.

Abstract ▼ AI-Helper

ERC-20, the standard API for Ethereum token smart contracts, was introduced to ensure compatibility among applications such as wallets and decentralized exchanges. However, many compatibility vulnerability problems have existed because there is no rigorous functional specifications for each API nor conformance review tools for the standard. In this paper, we proposed a new review procedure and a tool to perform the procedure to review if ERC-20 token smart contract programs for the Ethereum blockchain conform to the de facto standards. Based on the knowledge from an analysis on the ERC-20 API functional behavior of the top 100 token smart contract programs in the existing Ethereum blockchain, a new specification for the de facto standard for ERC-20 API was explicitly defined. The new specification enabled us to design a systematic review method for Ethereum smart contract programs. We developed a tool to support this review method and we evaluated a few benchmark programs with the tool.

주제어

표/그림 (9)

표 Table 1. ERC-20 API: Methods and Events
표 Table 2. A De Facto Standard for ERC-20 API Functional Specification
그림 Fig. 1. A Systematic Review Process on ERC-20 API Functional Specification de Facto Standard
표 Table 3. A Checklist on the Failure of transfer in the API Behavioral Conformance
표 Table 4. A Checklist on the Failure of transferFrom in the API Behavioral Conformance
그림 Fig. 2. Code snippet of ANT Token
그림 Fig. 3. An Example of Running the ERC-20 API Conformance Review Procedure with WBTC
표 Table 5. A Checklist on the Failure of approve in the API Behavioral Conformance
그림 Fig. 4. An Example of Running the ERC-20 API Conformance Review Procedure with INS

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