ダウンロード数: 69
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
978-3-030-72013-1_14.pdf | 994.09 kB | Adobe PDF | 見る/開く |
タイトル: | Helmholtz: A Verifier for Tezos Smart Contracts Based on Refinement Types |
著者: | Nishida, Yuki Saito, Hiromasa Chen, Ran Kawata, Akira Furuse, Jun Suenaga, Kohei https://orcid.org/0000-0002-7466-8789 (unconfirmed) Igarashi, Atsushi https://orcid.org/0000-0002-5143-9764 (unconfirmed) |
著者名の別形: | 西田, 雄気 齋藤, 大聖 陳, 然 河田, 旺 末永, 幸平 五十嵐, 淳 |
発行日: | 2021 |
出版者: | Springer Nature |
誌名: | Tools and Algorithms for the Construction and Analysis of Systems |
開始ページ: | 262 |
終了ページ: | 280 |
抄録: | A smart contract is a program executed on a blockchain, based on which many cryptocurrencies are implemented, and is being used for automating transactions. Due to the large amount of money that smart contracts deal with, there is a surging demand for a method that can statically and formally verify them. This tool paper describes our type-based static verification tool HELMHOLTZ for Michelson, which is a statically typed stack-based language for writing smart contracts that are executed on the blockchain platform Tezos. HELMHOLTZ is designed on top of our extension of Michelson’s type system with refinement types. HELMHOLTZ takes a Michelson program annotated with a user-defined specification written in the form of a refinement type as input; it then typechecks the program against the specification based on the refinement type system, discharging the generated verification conditions with the SMT solver Z3. We briefly introduce our refinement type system for the core calculus Mini-Michelson of Michelson, which incorporates the characteristic features such as compound datatypes (e.g., lists and pairs), higher-order functions, and invocation of another contract. HELMHOLTZ successfully verifies several practical Michelson programs, including one that transfers money to an account and that checks a digital signature. |
記述: | 27th International Conference, TACAS 2021, Held as Part of the European Joint Conferences on Theory and Practice of Software, ETAPS 2021, Luxembourg City, Luxembourg, March 27 - April 1, 2021 Part of the Lecture Notes in Computer Science book series (LNTCS, volume 12652) |
著作権等: | © The Authors 2021. This chapter is licensed under the terms of the Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made. |
URI: | http://hdl.handle.net/2433/278338 |
DOI(出版社版): | 10.1007/978-3-030-72013-1_14 |
出現コレクション: | 学術雑誌掲載論文等 |
このアイテムは次のライセンスが設定されています: クリエイティブ・コモンズ・ライセンス