method and system of smart electronic contracting based on block chain

The present invention provides a method of a smart electronic contract based on a blockchain to prevent forgery and alteration of an electronic contract so as to improve reliability of information and security. The method includes: a first step of inputting and converting electronic contract data, w...

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Bibliographische Detailangaben
1. Verfasser: KANG YUN CHUL
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:The present invention provides a method of a smart electronic contract based on a blockchain to prevent forgery and alteration of an electronic contract so as to improve reliability of information and security. The method includes: a first step of inputting and converting electronic contract data, which includes contract information through contract writing-side terminals connected to a server unit, and storing the electronic contract data in the server unit; a second step of communicating the electronic contract data stored in the server unit to at least one contract target terminal connected to the server unit; and a third step of communicating the electronic contract data from each of the terminals to the server unit, wherein it is determined whether or not the electronic contract data includes electronic signature information through each of the terminals, the electronic contract data is encrypted and blocked when the electronic contract data includes the electronic signature information, and the generated blocks are stored in the server unit and each of the terminals. 전자계약의 위변조가 미연에 방지되어 정보신뢰성 및 보안성이 개선되도록, 본 발명은 서버부에 접속된 계약작성측 단말기를 통해 계약정보를 포함하는 전자계약데이터가 입력 및 데이터화되고 상기 서버부에 상기 전자계약데이터가 저장되는 제1단계; 상기 서버부에 저장된 상기 전자계약데이터가 상기 서버부에 접속된 적어도 하나의 계약대상측 단말기로 통신되는 제2단계; 및 상기 전자계약데이터가 각 상기 단말기로부터 상기 서버부로 통신되되, 상기 전자계약데이터에 각 상기 단말기를 통한 전자서명정보의 포함 여부를 판단하고, 상기 전자계약데이터에 상기 전자서명정보가 포함된 경우에 상기 전자계약데이터가 암호화 및 블록화되어 생성된 블록이 상기 서버부 및 각 상기 단말기에 각각 저장되는 제3단계를 포함하는 블록체인 기반의 스마트 전자계약 체결방법을 제공한다.