Block chain authentication service device and node admission and user authentication method

Abstract

The invention provides an authentication service device of a block chain, a node admission method and a user authentication method. The device comprises a root authentication service module and a plurality of sub authentication service modules, and all the sub-authentication service modules are used for jointly maintaining a second block chain used for storing the node of the first block chain andthe registration information of the user. The node admission method comprises the following steps: generating an admission voucher of a node and a digital signature thereof, and writing the digital signature of the admission voucher into a second block chain; and verifying the identity and the authority of the node according to the second block chain. The user authentication method comprises thesteps of generating a digital identity card of a user and a digital signature thereof, and writing the digital signature of the digital identity card into a second block chain; and the identity of thefirst user is verified, and when the identity of the first user passes the verification, the first user is allowed to verify the identity of the second user according to the second block chain. According to the authentication service device, the node admission method and the user authentication method provided by the invention, the privacy of the user can be effectively protected.

Description

technical field [0001] The present invention relates to the field of computer application technology, and more specifically, to a block chain authentication service device and node access and user authentication methods. Background technique [0002] As a new type of application system integrating distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other technologies, blockchain has remarkable characteristics such as decentralization, non-tampering, and non-forgery. In the scenario where there is no central trust institution, the use of blockchain can establish a trust relationship between entities that do not trust each other, which can break the traditional Internet's need to rely on the confinement of the central trust model, reduce the cost of trust, and break the geographical limitations to a certain extent . Using blockchain to solve various problems in the fields of enterprise management, digital economy, and Internet ...

AI Technical Summary

Problems solved by technology

[0009] In the absence of a verification algorithm, a third party cannot actively verify whether the user and node identities are valid

[0010] Some systems that combine the nature of the blockchain to provide identity authentication services, such as ShoCard, which uses the blockchain to store the data fingerprints of physical identity documents, cannot achieve anonymous authentication and cannot guarantee the privacy of user identity information

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