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Electronic signature method and device

An electronic signature and document technology, applied in the field of blockchain, can solve the problems of insufficient reliability and the receiver cannot identify the authenticity through valid evidence, achieving high reliability and preventing tampering.

Active Publication Date: 2019-05-14
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In daily life, each of us is inseparable from the matter of stamping. In order to prove the authenticity and authority of a certain document, the applicant usually prints out the document that needs to be stamped, and finds the stamper on the paper document. Stamping the corresponding position of the seal brings a lot of inconvenience to the applicant. At the same time, due to the easy duplication of the physical seal and the easy change of the paper content, the recipient cannot use effective evidence to identify its authenticity.
[0003] With the development of electronic technology, electronic signatures have gradually replaced paper stamps. Compared with paper stamps, electronic signatures do not require applicants to spend a lot of time on-site stamping. In addition, traditional electronic signature technology uses centralized In this type of management, each printing record must be uploaded to the central terminal in real time, and the receiver can identify the signed document through the central terminal. However, this centralized system can tamper with the signed document as long as the central terminal is controlled file, resulting in its lack of reliability

Method used

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Examples

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no. 1 example

[0023] Please refer to figure 2 , figure 2 A flow chart of the electronic signature method applied to the server 100 provided by the embodiment of the present invention is shown. The electronic signature method applied to the server 100 includes the following steps:

[0024] Step S101, obtaining the preliminary examination document uploaded by the terminal.

[0025] In the embodiment of the present invention, the preliminary examination document may be an electronic document that needs to be signed after preliminary examination by the signer. When the terminal 11 includes a signatory terminal, first, the applicant applies to the signatory on the spot and submits the original documents and application materials. Materials that must be provided when applying for signature, such as ID card, business license, degree certificate, etc. Provide on-the-job certification documents and employee ID to the signer, so that the signer can confirm whether the applicant is an in-service...

no. 2 example

[0047] Please refer to image 3 , is a schematic block diagram of the server 100 provided by the embodiment of the present invention. The server 100 includes a processor 101, a memory 102, a bus 103 and a communication interface 104, the processor 101, the memory 102 and the communication interface 104 are connected through the bus 103; the processor 101 is used to execute the executable module stored in the memory 102, For example a computer program.

[0048] Wherein, the memory 102 may include a high-speed random access memory (RAM: Random Access Memory), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection between the server 100 and at least one other network element is realized through at least one communication interface 104 (which may be wired or wireless).

[0049] The bus 103 may be an ISA bus, a PCI bus, or an EISA bus, etc. image 3 Indicated by only a double-headed arrow, but does not mea...

no. 3 example

[0054] Please refer to Figure 4 , Figure 4 A schematic block diagram of the electronic signature device 200 provided by the embodiment of the present invention is shown. The electronic signature device 200 is deployed on the server 100, and the electronic signature device 200 includes a file acquisition module 201, a first calculation module 202, an information embedding module 203, a second calculation module 204, a first execution module 205 and a second execution module 206 .

[0055] The file obtaining module 201 is used to obtain the preliminary examination file uploaded by the terminal.

[0056] The first calculation module 202 is configured to perform a hash operation on the preliminary examination file to obtain a first hash value.

[0057] The information embedding module 203 is used to embed identification information in the preliminary examination document to obtain the document to be signed.

[0058] In the embodiment of the present invention, the information...

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Abstract

The embodiment of the invention relates to the technical field of block chains, and provides an electronic signature method and device, and the method comprises the steps: obtaining a primary review file uploaded by a terminal; performing Hash operation on the primary review file to obtain a first Hash value; embedding identification information into the primary review file to obtain a to-be-signed file; obtaining a second hash value according to the to-be-signed file, the first hash value and a pre-stored electronic signature associated with the signature unit; and sending the first hash value, the second hash value and the signature information to a block chain network, so that the block chain network links the first hash value, the second hash value and the signature information, and returns a link result to the server. Compared with the prior art, the block chain network is introduced into the electronic signature technology, the signature file can be effectively prevented from being tampered by utilizing the technical characteristic that information in the block chain network cannot be tampered, and the reliability is high.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of block chain, in particular, to an electronic signature method and device. Background technique [0002] In daily life, each of us is inseparable from the matter of stamping. In order to prove the authenticity and authority of a certain document, the applicant usually prints out the document that needs to be stamped, and finds the stamper on the paper document. Stamping the corresponding position of the seal brings a lot of inconvenience to the applicant. At the same time, due to the easy duplication of the physical seal and the easy change of the paper content, the recipient cannot use effective evidence to identify its authenticity. [0003] With the development of electronic technology, electronic signatures have gradually replaced paper stamps. Compared with paper stamps, electronic signatures do not require applicants to spend a lot of time on-site stamping. In addition, trad...

Claims

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Application Information

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IPC IPC(8): H04L9/32H04L29/06H04L29/08G06Q10/10
Inventor 王典
Owner NEW H3C TECH CO LTD
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