Signature verification method and device

A signature verification, sender technology, applied in secure communication devices, encryption devices with shift registers/memory, user identity/authority verification, etc., can solve problems such as inability to use, achieve high security, low cost. Effect

Active Publication Date: 2017-11-10
深圳和信中欧科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Since the U-shield is a physical existence, there must be problems in distribution, use and storage
In addition, the U-shield can only physically exist in one place at a time point, which makes it impossible for multiple people in different places to use the U-shield at the same time

Method used

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  • Signature verification method and device
  • Signature verification method and device
  • Signature verification method and device

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Embodiment Construction

[0027] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood, and the scope of the present disclosure can be fully conveyed to those skilled in the art. Nothing in the following detailed description is intended to suggest that any particular component, feature, or step is essential to the invention. Those skilled in the art will understand that various features or steps may be replaced or combined with each other.

[0028] Digital signature is an implementation of electronic signature. Hash (Hash) algorithm is widely used in digital signature. The Hash algorithm is al...

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PUM

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Abstract

The invention discloses a signature verification method and a device. The signature verification method can include the following steps: receiving a signature request, wherein the signature request contains abstract information of a file and a sender identifier; generating a random number; generating a signature of the file according to a signature generation algorithm and based on the random number, the abstract information and the sender identifier; and saving the signature to a block chain, and returning the random number to a sender sending the signature request. Through the technical scheme of the invention, an electronic signature can be realized without a USB key.

Description

technical field [0001] The invention relates to the technical field of electronic signatures, in particular to a signature verification method and device. Background technique [0002] When users submit digital files to banks, government agencies and other enterprises and departments with high security requirements, in order to prevent digital files from being forged and tampered, they often need to electronically sign digital files to ensure the authenticity, validity and integrity of the files. integrity. According to the "United Nations Commission on International Trade Law Model Law on Electronic Commerce", an electronic signature is data in electronic form that is included in, attached to, or logically associated with a data message, and it can be used to verify The identity of the signatory to which the data message relates, and an indication that the signatory approves the information contained in the data message. One of the most common and mature implementations o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L9/08H04L9/06
CPCH04L9/0643H04L9/0866H04L9/0869H04L9/0894H04L9/3239H04L9/3247
Inventor 唐聪宋文略孟宏伟刘瑞超陈邦道
Owner 深圳和信中欧科技有限公司
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