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Blind signature acquisition method and device and server

An acquisition method and a technology for obtaining devices, which are applied in the field of devices and servers, and blind signature acquisition methods, can solve the problems of unprotected data privacy of users and signers, and achieve protection of data privacy and improve security and reliability sex, the effect of avoiding tracking

Active Publication Date: 2019-05-28
JUZIX TECH SHENZHEN CO LTD +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The embodiment of this application provides a blind signature acquisition method, device and server to solve the technical problem that the data privacy of users and signers cannot be protected in existing methods

Method used

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  • Blind signature acquisition method and device and server
  • Blind signature acquisition method and device and server
  • Blind signature acquisition method and device and server

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Embodiment Construction

[0053] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0054] Considering that most of the existing signature data acquisition methods generate corresponding signature data according to the elliptic curve public key cryptographic algorithm (namely SM2) routinely used in the industry. However, in the implementation process based on the above-mentioned elliptic curve public key cryptographic al...

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Abstract

The embodiment of the invention provides a blind signature obtaining method and device and a server, and the method comprises the steps: obtaining to-be-signed target data; performing first preset processing on the target data according to a homomorphic encryption algorithm to obtain first data, and sending the first data to a second server; receiving second data and acquiring the second data by the second server through carrying out second preset processing on the first data according to a homomorphic encryption algorithm; and obtaining signature data of the target data according to the second data. According to the scheme, blind processing is performed on the target data on the basis of the SM2 by using a homomorphic encryption algorithm; and the processed data is sent to the second server for blind signature, the second server cannot obtain specific content contained in the target data, and meanwhile, the signature carried out by the second server cannot be tracked, so that the technical problem that the data privacy of a user and a signer cannot be protected in the existing method is solved.

Description

technical field [0001] The present application relates to the technical field of the Internet, in particular to a blind signature acquisition method, device and server. Background technique [0002] In the process of information data processing, in order to ensure the security of data processing, it is often necessary to use the corresponding signature data (also called digital signature) as a data certificate to verify the identity of the signer and the legality of the content of the information data. In order to successfully complete the corresponding data processing. [0003] Most of the existing signature data acquisition methods are based on SM2 (elliptic curve public key cryptographic algorithm) to generate specific signature data. Based on the above method, in the process of generating signature data, the signer needs to know the specific content contained in the information data to be signed before signing accordingly. However, the specific content contained in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/00H04L9/06H04L9/08H04L9/32H04L29/06
Inventor 何德彪张韵茹谢翔李升林孙立林
Owner JUZIX TECH SHENZHEN CO LTD
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