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A blockchain proxy authorization method and medium based on proxy signature

A proxy signature and blockchain technology, applied in user identity/authority verification, digital transmission systems, secure communication devices, etc., to achieve the effect of preventing excessive authority, reducing authority, and flexible methods

Active Publication Date: 2021-03-16
上海钜真金融信息服务有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantage of this method is that the common account entrusts too many permissions to the core node

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  • A blockchain proxy authorization method and medium based on proxy signature
  • A blockchain proxy authorization method and medium based on proxy signature
  • A blockchain proxy authorization method and medium based on proxy signature

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Embodiment Construction

[0047] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the drawings and specific embodiments are only exemplary, and should not be construed as limiting the protection scope of the present invention.

[0048] First, the principle and mechanism for realizing the present invention are described.

[0049] In general, the present invention utilizes proxy signature technology to provide a flexible proxy authorization mechanism for accounts in the blockchain system. Consider two types of participants in a blockchain system: ordinary nodes and core nodes.

[0050] Ordinary nodes delegate authority to core nodes on demand through proxy signatures. The mechanism is divided into two phases: the entrustment phase and the application execution phase. In the entrustment phase, the user uses the core node as the entrusting party to generate the corresp...

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Abstract

The invention discloses a block chain proxy authorization method based on proxy signature, wherein, a medium, a user can delegate partial rights to a trusted party, and can specify the scope of the proxy rights, timeliness, and the like. The technical scheme is as follows: two kinds of participants in the block chain system: common node and core node. Common nodes delegate permissions to core nodes on demand through proxy signatures. The mechanism is divided into two phases: the delegation phase and the application execution phase. In the delegation phase, the user takes the core node as the principal, generates the corresponding proxy signature key and specifies the scope of proxy authority. At the application execution stage, the user (which may be a related party) requests the core nodeto perform the correspond operation. After confirming the identity of the applicant user, the core node signs the content of the proxy by using the proxy signature key, and finally performs the operation through the intelligent contract.

Description

technical field [0001] The present invention relates to technologies related to block chains, in particular to methods and media for block chain agent authorization. Background technique [0002] Blockchain (Blockchain) originated from the underlying technology of Bitcoin. It is a chained data structure that combines data blocks in a sequential manner in chronological order, and is cryptographically guaranteed to be tamper-proof and unchangeable. Forge, realize decentralized distributed ledger. [0003] A node is the basic unit of a blockchain network. Generally, a node corresponds to a computer, saves a copy of the ledger, and can play different roles, such as issuing transactions, verifying transactions, and keeping accounts. Nodes, as participants in the blockchain system, each maintain a copy of the data. The nodes maintain the consistency of the backup database data through the consensus algorithm. Since the blockchain system is a decentralized distributed ledger sys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L9/32
CPCH04L9/3247H04L63/0884
Inventor 谢翔李升林林森沈敏文何德彪孙立林陈安伦
Owner 上海钜真金融信息服务有限公司