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Document signing method capable of being outsourced based on block chain technology

A blockchain and document technology, applied in the field of document signing, can solve the problems of unable to record the signing process, weak computing power, limited storage space, etc.

Active Publication Date: 2017-07-07
江苏省南京市南京公证处 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The certificate acquisition and renewal process is very complicated, which affects the scope of its use
The existing electronic document signing method has the following problems: (1) the user needs to have a certain storage space to store the signed document and the signature; (2) the user must have a certain computing power; (3) the signing process cannot be recorded, that is Does not reflect originator of instrument signing
However, in practical applications, the user's facility (mobile phone) has only weak computing power and limited storage space

Method used

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  • Document signing method capable of being outsourced based on block chain technology
  • Document signing method capable of being outsourced based on block chain technology
  • Document signing method capable of being outsourced based on block chain technology

Examples

Experimental program
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Embodiment Construction

[0076] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0077] Such as figure 1 As shown, an outsourced document signing method based on blockchain technology, using a signing platform and a blockchain authentication node (the authentication node is the notarization storage module provided by each notary office, or a third-party notarization storage module), the method Include the following steps:

[0078] S1. System initialization steps:

[0079] S1-1. According to the security level, for the signing platform S and blockchain authentication node N i Select the security parameter γ, i=1,2,...,n, i represents the number of blockchain authentication nodes, and n represents the total number of blockchain authentication nodes;

[0080] S1-2. For the signing platform S and the blockchain authentication node N i Select the hash function H, encryption and decryption algorithm (Enc, Dec); signature, verification...

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Abstract

The invention discloses a document signing method capable of being outsourced based on a block chain technology. Signing platforms and block chain authentication nodes are employed. The method comprises a system initialization step, a key management system initialization step, a user registration step and a user signing initiation step. The method is provided based on the block chain technology, outsourcing calculation and a document signing technology. Compared with a traditional document signing method, the method has the advantages that a user does not need to store documents and signatures, document signing processes are recorded in detail and cannot be tampered, the user can outsource the signing operation to the signing platforms, and through existence of multiple block chain authentication nodes, a conspired attack between the signing platforms and the authentication nodes can be resisted.

Description

technical field [0001] The invention relates to the field of document signing, in particular to an outsourced document signing method based on an authentication block chain. Background technique [0002] Blockchain is a distributed data storage method. A blockchain stores an ordered list of records called blocks. Each block contains a timestamp and a link to the previous block. Blockchain is an open and distributed accounting system that records the communication process between two parties / multiple parties in a verifiable and permanent way. In particular, blockchain prevents data from being tampered with. As a new data storage technology, blockchain has been widely concerned. [0003] Outsourcing computing can enable a user with limited computing power to outsource a large number of complex operations to a platform with stronger capabilities, thereby reducing the computing burden and storage costs on the user side. [0004] With the development of e-commerce, tradition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/00H04L9/06H04L9/08G06Q50/18
CPCG06Q50/18H04L9/006H04L9/0643H04L9/0841H04L9/0861
Inventor 陈宁娟葛峰韩金广
Owner 江苏省南京市南京公证处
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