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

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...

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