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Supervisable online payment privacy protection method and device, and electronic equipment

A privacy protection and payer technology, applied in the payment system, digital data protection, payment system structure, etc., can solve the problems of poor privacy protection, difficult supervision, unfair information, etc., to ensure legitimacy, reduce serious impact, The effect of improving stability

Active Publication Date: 2022-01-28
ZHEJIANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiment of this application is to provide a supervised online payment privacy protection method and device, electronic equipment, to solve the technical problems of poor privacy protection, difficult supervision, and unfair information in related technologies

Method used

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  • Supervisable online payment privacy protection method and device, and electronic equipment
  • Supervisable online payment privacy protection method and device, and electronic equipment
  • Supervisable online payment privacy protection method and device, and electronic equipment

Examples

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Embodiment 1

[0086] figure 1 It is a flow chart of a supervisable online payment privacy protection method shown according to an exemplary embodiment, as shown in figure 1 As shown, the payer and payee are not anonymous in this method, and may include the following steps:

[0087] Step S11: If the payer and the payee choose not to be anonymous, the payer generates the first balance update ciphertext of the payer and the second balance update ciphertext of the payee according to the plaintext of the payment amount and the regulator’s public key ;

[0088] Step S12: The payer generates a first non-interactive zero-knowledge proof according to the regulator's public key and transaction information;

[0089] Step S13: The payer packs the payer's public key, the payee's public key, the first balance update ciphertext, the second balance update ciphertext, and the first non-interactive zero-knowledge proof into a private transaction and sends it in the zone broadcast on the block chain;

[0...

Embodiment 2

[0132] Figure 5 It is a flow chart of a supervisable online payment privacy protection method shown according to an exemplary embodiment, as shown in Figure 5 As shown, the payer and payee are anonymous in this method, which may include the following steps:

[0133] Step S31: If the payer and payee choose to be anonymous, add the payer and payee to any anonymous account set on the blockchain;

[0134]Specifically, if the payer and payee choose to conduct anonymous transactions, the payment system will select an anonymous account set including payer A and payee B as participants in the transaction according to a random algorithm.

[0135] Step S32: The payer generates the third balance update ciphertext of all accounts in the anonymous account set according to the regulator's public key and the incremental balance value of each account in the anonymous account set;

[0136] Specifically, the payer uses the public key of the supervisor, the incremental balance value of each ...

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Abstract

The invention discloses a supervisible online payment privacy protection method and device, and electronic equipment. The method comprises the following steps: generating a first balance updating ciphertext and a second balance updating ciphertext which are respectively used for updating balance ciphertexts of a payer and a payee through a linear homomorphic encryption algorithm, so that balance information of a user account is encrypted in a full cycle, and privacy information is enabled to be available and invisible; based on a non-interactive zero-knowledge proof technology, forming a first non-interactive zero-knowledge proof used for verifying the transaction legality, so that it is ensured that the transaction legality can be verified publicly; further ensuring the legality of the transaction by generating the first certification ciphertext for verifying that the transaction amount is the agreed amount by the payee. According to the invention, encryption and certificate generation operation are carried out by using the public key of the supervisor in the whole process, so that the supervisor can decrypt and supervise the transaction data on the block chain according to the supervisor private key which is generated at the same time with the public key of the supervisor and corresponds to the public key of the supervisor, and therefore, the online payment transaction can be traced and supervised.

Description

technical field [0001] The present application relates to the field of online payment privacy protection, in particular to a supervised online payment privacy protection method, device, and electronic equipment. Background technique [0002] With the rapid popularization of the mobile Internet and the continuous deepening of currency virtualization, electronic payment has gradually become the mainstream payment method in the digital age. In an increasingly open network space, under the background of the development of the digital economy in the future, in the face of emerging challenges in privacy protection, government supervision, and information fairness, there is an urgent need for an An online payment method that promotes the direct circulation of digital assets. [0003] In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: [0004] The current mainstream third-party payment platforms re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q20/38G06F21/62
CPCG06Q20/3829G06F21/6245
Inventor 张秉晟陈辉任奎杨国正臧铖陈嘉俊
Owner ZHEJIANG UNIV
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