KR20190118785A - System and method for block-chain technique for mutual reliability in electronic commerce - Google Patents

Abstract

The present invention secures mutual reliability in electronic commerce by evaluation and reward policies of a block chain network to allow efficient and safe electronic commerce management. In conventional electronic commerce, an online certificate (including an accredited certificate) is used to identify a participant, which caused inconvenience where an individual must manage a certificate issuing process and an issued certificate. Also, a certificate is lost or a problem of wrongful use by hacking is exposed to be an abolition sequence. Also, a corresponding company is evaluated relying on company evaluation information provided by a company evaluation institution to secure reliability of an opposite company in a transaction between companies. However, since practical reliability of the corresponding company is difficult to know, securing reliability was limited. The present invention uses high transparency of information and technical advantages of security maintenance of a block chain are used to contribute to providing a safe electronic commerce environment at low costs by a rewards system for securing and promoting reliability by voluntary participation of entities participating in electronic commerce.

Description

System and method for block-chain technique for mutual reliability in electronic commerce

The present invention aims to implement secure e-commerce in a situation where a plurality of institutions are linked by using a sharing and management technique of a peer-to-peer (P2P) distributed shared transaction ledger (or transaction ledger). Shall be. The present invention solves the problem of securing reliability among trading partners, which has been the biggest concern in the existing e-commerce market by using the block chain technique, which is recently attracting attention. It is proposed to solve the limitations and problems of securing reliability based on enterprise evaluation information.

Accordingly, the present invention satisfies the identity verification procedure and non-repudiation procedure of documents and security maintenance function for the documents distributed by the certificate (including certified certification) method used to secure existing reliability, and also the existing corporate credit rating The present invention relates to a blockchain-based electronic commerce method that satisfies the evaluation function based on company evaluation information.

Blockchain is a technique used to implement bitcoin, a virtual currency that is recently attracting attention, and it is not a traditional centralized data exchange method, but is connected between nodes (physical computers and storage) connected in the cloud. It is characterized by direct information processing. Blockchain is expected to change the basis of the existing information processing concept in the era of the Fourth Industrial Revolution. It is being evaluated as a technology that will completely change the concept of information technology such as financial transactions without banks and electronic commerce without relay servers.

The principle of the blockchain is briefly described as follows. Assume that a computer and a tablet computer, such as a tablet PC, are connected to a network such as the Internet, and a user A sends an order for a transaction to a user B. If user A's computer is called node A and user B's computer is called node B, node A records the transaction and sends it to its private key and the recipient's public key. The digital signature is sent to all connected nodes. Then, the node that receives this ledger verifies the transaction book by finding a value that satisfies according to the established work proof method. The first node to complete this verification is rewarded. This is called mining. The mined node adds a new block to the existing block and receives a predetermined reward. At this time, the previous blocks are connected and stored together with the chain and are stored including the hash value of the previous block, thus making it difficult to modify the block in the middle. Theoretically, this can be modified (hacked) with at least half the computing power of all nodes connected to the network.

In order for a company or institution to be appropriate for its work, a verification node is provided in place of the block verification by the mining method as described above, and a method of processing the verification and approval of the block at the corresponding node is mainly performed in a private or consortium type block. This is how the chain introduces.

In addition, a technology that enables more intelligent processing has been developed by allowing the blockchain technology to be programmed and handled in the program in a way that can be programmed. Representatively, it is a technology that implements a virtual currency called Ethereum, and it is designed to implement a smart contract by supporting a programmable structure on an existing blockchain. This smart contract technique can be applied to e-commerce to provide faster and more accurate transactions.

As such, blockchain has the advantages of preventing data forgery, preventing hackers from hacking, ensuring transparent transactions, and immediately tracking and verifying transactions, and having the advantage of being able to trade directly with anyone connected to the network without a relay system. Therefore, by using the principle of blockchain technology, P2P type electronic commerce can be implemented without a relay server, and security and transaction establishment can be verified according to the transaction, and the transaction cost is very low and secure electronic commerce can be realized. have

In the field of electronic commerce, there is no choice but to deal with a third party that is not well known. In order for this e-commerce to take place, trust in the other party is necessary. Buyer's ability to supply or be willing to supply suppliers and whether they can continue to respond to future problems is a very important option. On the contrary, securing the reliability is very important because the supplier decides whether the supply is completed according to whether the buyer can receive the payment without problems or fulfill the contract without any problem.

In order to secure such credibility, in the past, on-site inspection or online certification process and the company's evaluation information provider's information use method were mainly used for companies, but the present invention is different from the existing method, and the voluntary activities of participants connected to the blockchain are used. This paper proposes a method for securing reliability.

In order to solve this problem, the system environment should be provided to make direct transactions between nodes in the form of peer-to-peer in a distributed environment instead of the existing centralized management system. Accordingly, each system must be connected to the network and a platform supporting P2P distributed shared ledger management must be provided to all users. In addition, all users should be connected to an app or browser for use of the platform, and a storage space for storing distributed shared ledger information should be secured.

In order to secure reliability between traders in the above environment, the aim is to secure the reliability of secure electronic commerce at a very low cost by securing the reliability of each participant and the registered contents using the reward system of the blockchain.

In the existing e-commerce, online certificates (including certified certificates) were used to verify the identity of the participants, which caused inconvenience to the individual to manage the procedure for issuing the certificate and the issued certificate. In addition, there is a situation in which the certificate is lost or hacked to expose the problem of fraudulent use. In addition, in the case of inter-company transactions, the company has been evaluated based on company evaluation information provided by the company evaluation agency to secure the trust of the other company. There was no.

The present invention secures more secure electronic commerce at a lower cost by securing a reliability and promoting compensation by voluntary participation of subjects participating in electronic commerce using the technical strength of high information transparency and security of the blockchain. It is expected to contribute to providing the environment.

1 is a system configuration and participant configuration diagram.
2 is a correlation diagram between nodes for evaluation.

The present invention is characterized by implementing the characteristics of the blockchain in order to evaluate the reliability of each participant (node) in electronic commerce and to secure the reliability for safer transactions based on this.

In the present invention, the basic function of the blockchain is not mentioned, and it is presented without considering the difference between the public type blockchain and the privet type blockchain. Therefore, this paper focuses on the implementation of the system using information sharing, instantaneousness, and invariance of information, which are inherent in blockchain.

1 is a system configuration diagram required for the present invention and the participants (nodes) for the system use. The blockchain service system 101 is connected via the Internet 102 and each of the nodes is also connected to the Internet, all of which are assumed to be linked to the platform in a compatible blockchain.

2 is a process flow diagram illustrating how each participant 201, 202, 203 is evaluated and rewarded. The publisher 201 is a buyer or seller, a participant in the transaction, and posts necessary materials for electronic commerce such as an introduction letter and a request letter. The publisher will hope to get a good rating if possible because it is easy to participate in the deal if a good rating from other reviewers (202).

The evaluator 202 of FIG. 2 will receive a lot of consent (likes) 204 of the subscribers 203 to receive a reward, and will try to be as objective as possible.

The subscriber 203 of FIG. 2 plays a role of making the evaluator's evaluation fairly written by looking at the evaluator's evaluation 202 and writing a review or expressing the consent (like or dislike) 204. Rewards shall be rewarded according to the blockchain's cryptocurrency, tokens, or separate reward policies if they meet certain criteria according to the subscriber's consent (like).

Traditional electronic commerce uses online certificates (including certified certificates) for identification, nonrepudiation, and information protection. Therefore, it is a feature of the present invention to implement such a role by using the document identification by the proof of work of the blockchain and its immutable property. Once a blockchain is created and included in a block, it is impossible to delete or change it later, and since block data that has been changed abnormally is discarded, it has a property of ensuring stability. Proven blocks are considered safe, so they play a role of nonrepudiation. If necessary for identity verification, offline due diligence can be used as a safe means of identity verification by storing the information on the blockchain.

In addition, documents stored for the security of documents can be encrypted and stored in the blockchain for handling.

101: Blockchain service: A service system that provides a distributed ledger in which all nodes share and share information on participant evaluation on the blockchain.

Claims (4)

An electronic commerce system for evaluating the reliability of various materials posted by other participants or the participants as an autonomous evaluator to secure the reliability of all participants in the e-commerce, and receiving a reward as a result of each evaluation;
A step in which the electronic commerce participant posts data necessary for an electronic commerce such as an individual or a company introduction, a purchase request, a product introduction, etc. to the operation system;
Preparing an evaluation report analyzed and evaluated by the participants other than the publisher with respect to the post;
Evaluating fairness of the content of the evaluation by other participants except the publisher and the evaluation author;
Paying the evaluator with a cryptocurrency or token or a separate incentive as a reward to the evaluator when satisfying an appropriate criterion as a result of the fairness evaluation;
An electronic commerce method of releasing the evaluation results in an appropriate manner and gradually improving the accuracy of the reliability by updating the reliability score through mutual evaluation of the counterparties after the actual transaction. The electronic commerce method of claim 1, wherein, in order to prove that the transaction participant is the first, or when necessary, an existing traditional method of verification, such as an accredited certificate or field visit, is shared with the blockchain. The electronic commerce method according to claim 1, wherein the chain information of the blockchain cannot be changed for the purpose of non repudiation of the document used for the transaction. The electronic commerce method according to claim 1, which is used after an encryption process for information protection such as hacking and tamper proofing of documents used for transactions.

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