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:
Nov. 22, 2022
Filed:
Jun. 02, 2022
Zhejiang University, Hangzhou, CN;
ZHEJIANG UNIVERSITY, Hangzhou, CN;
Abstract
A covert channel construction method in a blockchain network includes: sharing, by a first terminal and a second terminal, a secret key and transaction information, and generating a blockchain network address by using the secret key and a standard public key address generation algorithm, wherein the transaction information comprises a permutation mapping table and an information capacity of a single transaction; sending, by the first terminal, information by using an information hiding method, and performing simultaneously, by the first terminal and the second terminal, transaction recording; and monitoring, by the first terminal and the second terminal, whether an account transaction of the blockchain network address exists in a blockchain, if yes, extracting, by the second terminal, the information by using an information extraction method, and after extracting the information, replying to the information by using the information hiding method, thereby enabling communication parties to safely transmit information.