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An anonymous registration method and system for protecting user privacy based on blockchain

A technology of user privacy and blockchain, applied in the field of anonymous registration methods and systems, to achieve the effect of ensuring privacy

Active Publication Date: 2022-06-28
INST OF INFORMATION ENG CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention aims at the contradiction between the existing user privacy protection requirements and the website’s inspection requirements for user entity identities in the user registration methods of the existing information system, and proposes an anonymous registration solution based on blockchain to protect user privacy

Method used

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  • An anonymous registration method and system for protecting user privacy based on blockchain
  • An anonymous registration method and system for protecting user privacy based on blockchain
  • An anonymous registration method and system for protecting user privacy based on blockchain

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Embodiment Construction

[0052] In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described below through specific embodiments and accompanying drawings.

[0053] In the present invention, the blockchain is used as a bulletin board, and its working mode is as follows figure 1 shown. The blockchain consists of three transaction sets, a Merkle tree, a transaction validator, a key generator, a proof key set, and a verification key set. The three transaction sets include an authentication transaction (ATX) set, a confirmation of authority transaction (CTX) set, and an identity revocation transaction (RTX) set. Among them, ATX can and can only be issued by a certain entity identification authority (RIA), and CTX and RTX can be issued only by a globally unique Identity Revocation Authority (IRC). The publication of these three types of transactions must be verified by the transaction validator, otherwise they...

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Abstract

The invention relates to an anonymous registration method and system for protecting user privacy based on blockchain. This method involves the entity identity activation process and the anonymous account registration process: after the user's entity identity certificate is verified by an entity identity authentication agency, the commitment of the identity certificate information can be released to the block chain; after the user completes the entity identity activation , when registering anonymously on a website, zero-knowledge proof technology can be used to prove the legitimacy of one's own entity identity and the compliance of attributes. The invention can avoid leaking unnecessary private information of the user's identity certificate to the registration server during the registration process, and can make the registration server unable to obtain redundant identity private information while confirming that the user's identity attributes meet the requirements.

Description

technical field [0001] The invention belongs to the field of privacy protection, and in particular relates to an anonymous registration method and system for protecting user privacy based on blockchain. Background technique [0002] User management is the basis of various information systems, and user registration is the beginning of the life cycle of an account in the information system. In a general registration interaction, the participating entities can be defined as users and registration servers (of the information system). Due to the needs of business and supervision, the information system will stipulate various attributes of the user; its registration server will check the identity documents provided by the user during the user registration stage to ensure the legality of the user's identity and the compliance of attributes. sex. [0003] However, the existing registration process leaks unnecessary private information of the user's identity document to the registr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/60G06F21/62G06F16/27
CPCG06F21/602G06F21/6245G06F16/27
Inventor 林璟锵林雪焰王伟蔡权伟宋天林王琼霄鲁琳俪
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI
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