This article defines a framework for programming, in Java, smart contracts over blockchain. The framework consists of a restricted runtime and of an instrumentation procedure for classes that need to be persisted to blockchain, for payable contract methods and for gas metering. This instrumentation abstracts away any difference between storage and memory data location, which is at the origin of tricky semantical issues and bugs in Solidity. Moreover, this framework allows one to leverage, in a transparent way, existing expertise and tools from the Java world, in order to build smart contracts in a simple and comfortable way. The resulting contracts are strongly-typed and work over a shared storage, that allows simple intercontract communication. This makes it easy to install libraries or microservices in blockchain.

A Java Framework for Smart Contracts

Fausto Spoto
2020-01-01

Abstract

This article defines a framework for programming, in Java, smart contracts over blockchain. The framework consists of a restricted runtime and of an instrumentation procedure for classes that need to be persisted to blockchain, for payable contract methods and for gas metering. This instrumentation abstracts away any difference between storage and memory data location, which is at the origin of tricky semantical issues and bugs in Solidity. Moreover, this framework allows one to leverage, in a transparent way, existing expertise and tools from the Java world, in order to build smart contracts in a simple and comfortable way. The resulting contracts are strongly-typed and work over a shared storage, that allows simple intercontract communication. This makes it easy to install libraries or microservices in blockchain.
2020
978-3-030-43724-4
Smart Contract, Blockchain, Solidity, Java
File in questo prodotto:
File Dimensione Formato  
Spoto2020_AJavaFrameworkForSmartContract.pdf

solo utenti autorizzati

Tipologia: Versione dell'editore
Licenza: Accesso ristretto
Dimensione 399.57 kB
Formato Adobe PDF
399.57 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11562/1031020
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 7
  • ???jsp.display-item.citation.isi??? ND
social impact