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.

Date of Patent:
Jul. 19, 2022

Filed:

Aug. 28, 2019
Applicant:

Advanced New Technologies Co., Ltd., Grand Cayman, KY;

Inventors:

Baoli Ma, Hangzhou, CN;

Zheng Liu, Hangzhou, CN;

Shan Yin, Hangzhou, CN;

Wenbin Zhang, Hangzhou, CN;

Lichun Li, Hangzhou, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06Q 20/38 (2012.01); H04L 9/00 (2022.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
G06Q 20/389 (2013.01); G06Q 20/3829 (2013.01); H04L 9/008 (2013.01); H04L 9/3239 (2013.01); G06Q 2220/00 (2013.01); H04L 2209/38 (2013.01); H04L 2209/56 (2013.01);
Abstract

A method for implementing blockchain-based transactions comprises: determining a transaction amount to be remitted from a blockchain account of a remitter into a blockchain account of a receiver, wherein the blockchain account of the remitter records a homomorphic encryption ciphertext of the remitter's balance, the blockchain account of the receiver records a homomorphic encryption ciphertext of the receiver's balance; generating a homomorphic encryption ciphertext of the transaction amount with respect to the remitter and a homomorphic encryption ciphertext of the transaction amount with respect to the receiver; and submitting to the blockchain a transaction for the homomorphic encryption ciphertext of the transaction amount with respect to the remitter to be subtracted from the homomorphic encryption ciphertext of the remitter's balance and for the homomorphic encryption ciphertext of the transaction amount with respect to the receiver to be added to the homomorphic encryption ciphertext of the receiver's balance.


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