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Method and device for generating signature, terminal and server

A technology for generating signatures and generating modules, applied in the information field, can solve problems such as increasing the complexity of signature verification, and achieve the effects of reducing complexity, reducing burden, and saving storage space

Active Publication Date: 2018-04-27
TENPAY PAID TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the above multi-signature method, it is necessary to have the public keys of all signers when verifying the signature, and perform signature verification on all signatures one by one, which greatly increases the complexity of signature verification

Method used

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  • Method and device for generating signature, terminal and server
  • Method and device for generating signature, terminal and server
  • Method and device for generating signature, terminal and server

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Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0044] see figure 1 In the data sharing system shown, the data sharing system 100 refers to a system for sharing data between nodes. The data sharing system may include multiple nodes 101, 102 and 103, and the multiple nodes 101 may refer to data For each client in the sharing system, the data sharing system can be configured with one or more blockchains to store information and data. Each node 101 can receive input information during normal operation, and maintain shared data in the data sharing system based on the received input information.

[0045] In order to ensure the information exchange in the data sharing system, there can be information connection between each node in the data sharing system, the information transmission ca...

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Abstract

The invention discloses a method and a device for generating a signature, a terminal and a server, and belongs to the technical field of information. According to the method, an aggregated signature is generated via sub-signatures of a plurality of signature parties, and an aggregated public key is generated based on public keys of the plurality of signature parties, so that the length of the acquired aggregated signature is less than that of a multi-signature acquired by splicing the plurality of sub-signatures, the length of the aggregated public key is less than that of a multi-public key acquired by splicing the plurality of public keys, and thus when the aggregated signature and the aggregated public key are transmitted via a network, the network transmission load is reduced, the storage space is saved when in storage, when the signature is verified, the aggregated public key and the aggregated signature are directly used for verifying a message to be signed, and the complexity ofsignature verification is greatly reduced.

Description

technical field [0001] The present invention relates to the field of information technology, in particular to a method, device, terminal and server for generating a signature. Background technique [0002] With the continuous development of information technology, blockchain has been vigorously developed as a brand-new technology. Blockchain refers to a series of blocks that are associated using cryptographic methods. The block data in each block in the blockchain is associated with the block data in the previous block. Therefore, it cannot be tampered with. Cheating with block data can ensure that the block data on any block is open and transparent. The blockchain is an end-to-end network composed of many nodes, and the data exchange between nodes is verified by digital signature technology. Digital signature technology is a technology for identifying digital information through digital encryption. In some cases, for example, when a transaction requires multi-party conse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L9/08
CPCH04L9/0861H04L9/0869H04L9/3247H04L9/0819H04L9/3255H04L9/3239H04L2209/56H04L2209/68H04L9/50G06F16/1834H04L9/0833H04L9/0841H04L9/085
Inventor 张建俊吴立垒屠海涛李茂材孔利唐子超邹文伟藏军
Owner TENPAY PAID TECH
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