Patent · US Active

Method and system for securing smart contracts in blockchains

US11144893B2 · kind B2 · utility

4Cited by

0References

20Claims

0Family size

Assignee

NEC CORPORATION · JP

Inventors

Wenting Li · Longbeilingcun, CN
Ghassan Karame · Heidelberg, DE
Lucas Davi · Duisburg, DE

Key dates

Filing date	Feb 15, 2018
Grant date	Oct 12, 2021
Priority date	—
Expiry date	Aug 19, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/50
WIPO fieldIT methods for management
WIPO sectorElectrical engineering

Abstract

A method for securing smart contracts in a blockchain includes receiving in the blockchain a contract creation transaction having a control flow graph (CFG) and contract code for a smart contract to be created. The contract creation transaction is verified by checking a signature of a creator of the smart contract and determining that the CFG is correct based on the contract code. The verified contract creation transaction is included as a block in a distributed ledger of the blockchain.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.