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1. WO2020192236 - BLIND SIGNATURE-BASED TRANSACTION METHOD AND DEVICE

Publication Number WO/2020/192236
Publication Date 01.10.2020
International Application No. PCT/CN2020/070109
International Filing Date 02.01.2020
IPC
G06Q 20/06 2012.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
20Payment architectures, schemes or protocols
04Payment circuits
06Private payment circuits, e.g. involving electronic currency used only among participants of a common payment scheme
CPC
G06Q 20/3825
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
20Payment architectures, schemes or protocols
38Payment protocols; Details thereof
382insuring higher security of transaction
3825Use of electronic signatures
G06Q 20/4014
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
20Payment architectures, schemes or protocols
38Payment protocols; Details thereof
40Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
401Transaction verification
4014Identity check for transactions
G06Q 40/04
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
40Finance; Insurance; Tax strategies; Processing of corporate or income taxes
04Exchange, e.g. stocks, commodities, derivatives or currency exchange
Applicants
  • 北京沃东天骏信息技术有限公司 BEIJING WODONG TIANJUN INFORMATION TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 张林 ZHANG, Lin
  • 黄海泉 HUANG, Haiquan
  • 孙海波 SUN, Haibo
Agents
  • 北京同立钧成知识产权代理有限公司 LEADER PATENT & TRADEMARK FIRM
Priority Data
201910223566.322.03.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) BLIND SIGNATURE-BASED TRANSACTION METHOD AND DEVICE
(FR) PROCÉDÉ ET DISPOSITIF DE TRANSACTION REPOSANT SUR UNE SIGNATURE MASQUÉE
(ZH) 基于盲签名的交易方法及装置
Abstract
(EN)
A blind signature-based transaction method and device. Said method comprises: a payment client performing blinding processing according to transaction service parameters and signature data to obtain a blinding result; the payment client sending a first signature request to a currency providing node; the currency providing node receiving the first signature request sent by the payment client and signing the blinding result to obtain a first signature result; the currency providing node sending the first signature result to the payment client; the payment client receiving the first signature result sent by the currency providing node; the payment client performing deblinding on the first signature result to obtain a second signature result, and sending the second signature result and the signature data to a payee client; the payee client sending the second signature result and the signature data to the currency providing node; and the currency providing node completing the transaction after the verification of the signature data and the second signature result is successful, thereby improving the security of the transaction.
(FR)
L’invention concerne un procédé et un dispositif de transaction reposant sur une signature masquée. Ledit procédé comprend les étapes suivantes : un client de paiement effectue un traitement de masquage en fonction de paramètres de service de transaction et de données de signature pour obtenir un résultat de masquage ; le client de paiement envoie une première demande de signature à un nœud de fourniture de monnaie ; le nœud de fourniture de monnaie reçoit la première demande de signature envoyée par le client de paiement et signe le résultat de masquage pour obtenir un premier résultat de signature ; le nœud de fourniture de monnaie envoie le premier résultat de signature au client de paiement ; le client de paiement reçoit le premier résultat de signature envoyé par le nœud de fourniture de monnaie ; le client de paiement effectue un démasquage sur le premier résultat de signature pour obtenir un second résultat de signature, et envoie le second résultat de signature et les données de signature à un client de bénéficiaire ; le client de bénéficiaire envoie le second résultat de signature et les données de signature au nœud de fourniture de monnaie ; et le nœud de fourniture de monnaie exécute la transaction après que la vérification des données de signature et du second résultat de signature a réussi, améliorant ainsi la sécurité de la transaction.
(ZH)
一种基于盲签名的交易方法及装置。该方法包括:支付客户端根据交易服务参数和签名数据进行盲化处理,得到盲化结果。支付客户端向货币提供节点发送第一签名请求。货币提供节点接收支付客户端发送的第一签名请求,对盲化结果进行签名,得到第一签名结果。货币提供节点将第一签名结果发送给支付客户端。支付客户端接收货币提供节点发送的第一签名结果。支付客户端对第一签名结果去盲化,得到第二签名结果,将第二签名结果和签名数据发送给收款客户端。收款客户端将第二签名结果和签名数据发送给货币提供节点。货币提供节点在签名数据和第二签名结果验证通过后完成交易,从而提高了交易的安全性。
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