The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 2021
Filed:
Feb. 15, 2018
Applicant:
Nec Laboratories Europe Gmbh, Heidelberg, DE;
Inventors:
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06Q 20/06 (2012.01); G06Q 20/40 (2012.01); G06Q 20/38 (2012.01); G06Q 20/02 (2012.01);
U.S. Cl.
CPC ...
G06Q 20/06 (2013.01); G06Q 20/02 (2013.01); G06Q 20/389 (2013.01); G06Q 20/3825 (2013.01); G06Q 20/3829 (2013.01); G06Q 20/38215 (2013.01); G06Q 20/4016 (2013.01); G06Q 2220/00 (2013.01);
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.