WO2022107971A1

WO2022107971A1 - Privacy blockchain platform-based logistics method and logistics system

Info

Publication number: WO2022107971A1
Application number: PCT/KR2020/017184
Authority: WO
Inventors: 김호원; 강원태; 김도훈
Original assignee: 부산대학교 산학협력단
Priority date: 2020-11-23
Filing date: 2020-11-27
Publication date: 2022-05-27
Also published as: KR102323755B1

Abstract

Disclosed are a method and a device for privacy blockchain platform-based logistics. A method for privacy blockchain platform-based logistics according to an embodiment of the present invention may comprise the steps of: generating certification information for certifying that a deliverer who desires to participate in a platform is an owner having registered deliverer information; verifying the certification information by using a specified verification means based on a privacy blockchain platform; and allowing the deliverer having the verified certification information to deliver a seller's article to be sold.

Description

Logistics method and logistics system based on privacy blockchain platform

The present invention relates to a logistics method and a logistics system based on a privacy block chain platform, and through a block chain to which a privacy protection technology is applied, data privacy that occurs as a feature of a block chain in a block chain based logistics system in which a number of related organizations participate To solve the protection problem, we provide a logistics method and logistics system based on a privacy blockchain platform.

A blockchain is a distributed database that stores data in blocks and connects blocks in the form of a chain. The concept of blockchain was first proposed in the paper "Bitcoin: A Peer-to-Peer Electronic Cash System" published by Satoshi Nakamoto, and it has been continuously developed by changing from the initially proposed system to various types of systems.

Early blockchain systems took the form of disclosing all data contained in blocks. This early form of blockchain system, while providing transparency to blockchain, has been a stumbling block to adoption of blockchain in industries that do not want to disclose all data. A logistics platform would be a prime example of an industry that does not want to disclose data.

Blockchain can save money and time by simplifying the process of the logistics platform, but companies participating in the logistics platform are reluctant to introduce blockchain because they do not want to reveal each other's information.

In order to solve this problem, in recent years, various methods of protecting data privacy within the block chain are being studied.

Blockchain with privacy protection technology guarantees transparency and reliability, which are characteristics of existing block chains, and protects privacy so that sensitive data can also be registered on the block chain.

In addition, the logistics platform to which the privacy protection technology is applied can induce the participation of companies, thereby simplifying the entire logistics process.

In addition, due to the transparency and irreversibility of blockchain-based logistics platforms, it is difficult to protect and manage various sensitive information in each institution.

Therefore, there is an urgent need for a platform that applies blockchain and privacy protection technology to the logistics platform.

An embodiment of the present invention is a task to solve by proposing a logistics method and logistics system based on a privacy blockchain platform, which provides a logistics platform to which a blockchain and privacy protection technology is applied.

In addition, an embodiment of the present invention aims to propose a model for setting private data between anonymous authentication and blockchain network participants based on zk-SNARKs, which is a type of zero-knowledge proof.

According to an embodiment of the present invention, the privacy block chain platform-based logistics method includes: generating proof information to prove that a carrier who wants to participate in the platform is the owner of the registered carrier information; using a prescribed verification means based on a privacy block chain platform to verify the proof information; and permitting the carrier of the verified verification information to transport the seller's goods for sale.

In addition, according to an embodiment of the present invention, the privacy block chain platform-based logistics device includes: a generator that generates proof information for proving that a carrier who wants to participate in the platform is the owner of the registered carrier information; a verification unit that verifies the proof information using a prescribed verification means based on the privacy block chain platform; and a processing unit that permits the transport of the seller's goods for sale to the carrier of the verified verification information.

According to an embodiment of the present invention, it is possible to propose a logistics method and logistics system based on a privacy blockchain platform, which provides a logistics platform to which a blockchain and privacy protection technology is applied.

In addition, according to an embodiment of the present invention, it is possible to propose a model for setting up private data between anonymous authentication and blockchain network participants based on zk-SNARKs, which is a type of zero-knowledge proof.

In addition, according to an embodiment of the present invention, in a blockchain logistics platform in which a large number of unspecified organizations participate, anonymity authentication and private data setting are provided to maximize the unique reliability and process simplification of the blockchain, thereby reducing time and cost can be reduced.

In addition, according to an embodiment of the present invention, it can be applied not only to the logistics field but also to a plurality of fields, so that it is possible to provide a privacy block chain platform that efficiently guarantees data privacy in building a block chain-based system.

1 is a block diagram showing the configuration of the privacy block chain platform-based logistics device of the present invention.

2 is a diagram showing the configuration of a blockchain-based privacy protection logistics platform according to an embodiment of the present invention.

3 is a diagram showing in detail the block chain network components of the block chain-based privacy protection logistics platform of the present invention.

4 is a diagram showing in detail the smart contract of the blockchain-based privacy protection logistics platform of the present invention.

5 is a flowchart of the operation sequence of zk-SNARKs, which is a zero-knowledge proof.

6 is a flowchart illustrating an operation of generating transaction information of a seller and storing private data in a legacy DB.

7 is a flowchart illustrating an operation of setting roles of organizations participating in a network and creating legacy DB access rights.

8 is a flowchart illustrating a logistics method based on a privacy blockchain platform, according to an embodiment of the present invention.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, since various changes may be made to the embodiments, the scope of the patent application is not limited or limited by these embodiments. It should be understood that all modifications, equivalents and substitutes for the embodiments are included in the scope of the rights.

The terms used in the examples are used for the purpose of description only, and should not be construed as limiting. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprise" or "have" are intended to designate that a feature, number, step, operation, component, part, or a combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiment belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

In addition, in the description with reference to the accompanying drawings, the same components are given the same reference numerals regardless of the reference numerals, and the overlapping description thereof will be omitted. In describing the embodiment, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the embodiment, the detailed description thereof will be omitted.

Referring to FIG. 1 , the privacy block chain platform-based logistics device 100 according to an embodiment of the present invention can be configured to include a generator 110 , a verification unit 120 , and a processing unit 130 . have.

First, the generating unit 110 generates proof information to prove that the carrier who wants to participate in the platform is the owner of the registered carrier information. That is, the generating unit 110 may serve to generate proof information proving that the previously registered carrier information of a carrier who intends to transport the goods for sale is information of a legitimate owner.

The pre-registered carrier information may be information stored and maintained in the storage means of the related agency as the legitimacy is given by the related agency according to the prescribed procedure for the personal information previously entered by the transporter.

In the generation of proof information, the generation unit 110 may generate a verification key based on the block chain and use it for generation of proof information.

To this end, the generation unit 110 collects personal information of the carrier's, driver's license number, or resident number from a related institution, and when the collected personal information matches information input from the carrier, the individual Using the information, it is possible to generate the verification information and a verification key used for verification, and record the verification information and the verification key in a blockchain distributed ledger.

That is, if the personal information of the authorized related institution and the input information of the carrier are the same, the generating unit 110 generates a verification key related thereto and registers it in the blockchain distributed ledger, thereby proving in relation to the registered verification key. After generating information and requesting proof for proof information, it enables proof information to prove that the proof information is valid information of the carrier through the verification key held in the blockchain distributed ledger.

Here, the related institution may be an administrative/policing institution that publicly registers and manages personal information, a telecommunications company that manages personal information with a high security level, a private institution such as a financial company, an insurance company, and the like.

In addition, the verification unit 120 verifies the proof information using a prescribed verification means based on the privacy block chain platform. That is, the verification unit 120 may serve to verify the previously generated proof information by using the verification key recorded in the blockchain distributed ledger.

In the verification of the proof information, the verification unit 120 may verify by performing the zk-SNARKs-based verification logic.

To this end, the verification unit 120 writes a proof value proving that the personal information belongs to the carrier according to the verification key record in the blockchain distributed ledger, and in the privacy block chain platform-based polynomial, the The polynomial operation value derived by applying the proof value may be verified by performing the zk-SNARKs-based verification logic as the above-specified verification means.

That is, the verification unit 120 can verify the proof information by applying the generated proof value related to the proof information to the zk-SNARK (zero-knowledge Succinct Non-interactive ARguments of Knowledge) based verification logic.

zk-SNARK can be a kind of zero-knowledge proof that the prover can prove without online interaction with the verifier and without revealing his/her own information.

Here, the polynomial generated in the privacy block chain platform is a special type of polynomial that maintains the reliability of the input proof value through the calculation of the encrypted value while hiding the original (personal information of the carrier) information. may be a polynomial of The polynomial based on the privacy blockchain platform may derive a polynomial operation value as an output.

More specifically, the verification unit 120 searches for a polynomial that satisfies a random value and a constraint from a polynomial DB through a Proof Generator Smart Contract (PGSC), and retrieves the proof information from the blockchain distributed ledger. have.

Here, the polynomial and the proof information may be transmitted to a Proof Verifier Smart Contract (PVSC) through a Prover and a Verifier.

That is, the verification unit 120 may transmit polynomials and proof information retrieved from the PGSC to the PVSC via the Prover and Verifier constituting the block chain network.

In addition, the verification unit 120 obtains the verification key from the blockchain distributed ledger through the PVSC to verify the proof information, and applies the verified proof information and the verification value to the polynomial. For polynomial operation values, the zk-SNARKs-based verification logic may be performed.

That is, in PVSC, the polynomial operation value can be derived by applying the proof information and the verification value to the polynomial as the above-mentioned proof value.

The processing unit 130 permits the transport of the seller's products to the carrier of the verified verification information. That is, as the carrier information is verified, the processing unit 130 may serve to set the registration so that the carrier can transport the goods for sale.

More specifically, the processing unit 130 registers the goods for sale on the platform, exposes the goods for sale to the carrier according to the verification of the proof information, and selects the goods for sale by the carrier. Accordingly, the seller provides the proof information to proceed with the goods transport contract, and after the completion of the goods transport contract, the transport of the goods for sale by the carrier is permitted, but the goods for sale are delivered to the designated destination. By confirming that it has arrived, you can settle the set price.

That is, the processing unit 130 may support the overall logistics processing related to the transport of the sales article, such as registration of the sale article, exposure of the sale article to the carrier, selection, contract, transportation, and payment settlement.

zk-SNARK (zero-knowledge Succinct Non-interactive ARguments of Knowledge) is a kind of zero-knowledge proof that the prover can prove without online interaction with the verifier and without revealing his/her own information.

zk-SNARK has three ZKP properties (Completeness, Soundness, Zero-knowledge) and two additional properties, Succinct and Non-interactive. Succinct is the property that the verifier can simply verify the proof of the prover, and non-interactive is the property that the verifier can verify the proof without interaction with the prover.

In zk-SNARK, Pinocchio Protocol using Homomorphic Hiding and Quadratic Arithmetic Program (QAP) is used to satisfy these characteristics.

Homomorphic Hiding is an information-hiding technique used in zk-SNARK.

Quadratic Arithmetic Program (QAP) means a special format that can simplify verification in zk-SNARK. QAP transforms computation into a polynomial form and verifies it.

Pinocchio Protocol is a practical protocol of zk-SNARK and can perform verification of computation.

Pairing is a bilinear map in which an abelian group has the value of another abelian group. Pairing is used for isomorphic encryption on an elliptic curve. In homomorphic encryption, plaintexts A and B and H(A) and H(B), which are encrypted thereto, maintain an arithmetic relationship. When pairing is used, even if the verifier does not know the original value before encryption, it can calculate the encrypted value and verify whether the operation of the Prover is correct.

Hyperledger Fabric is an open source permissioned distributed ledger technology platform for enterprise applications and is one of the Hyperledger projects under the Linux Foundation Open Governance. The nodes constituting the Hyperledger Fabric network are divided into Peer (Endorser, Committer), Orderer, and Fabric-CA according to their roles. Within the blockchain network, there is a chaincode that can execute program logic, and various application applications can be configured.

In Hyperledger Fabric, the ledger is basically owned by peers, and in addition to the immutable blockchain ledger, a state DB that stores the latest result state of a transaction, an index DB for search, etc. exist.

The data of Hyperledger Fabric is basically shared in units of channels, and even if one peer participates in different channels, the channels operate independently without dependence on each other.

In the present invention, a blockchain-based logistics platform is constructed by utilizing the characteristics of such Hyperledger Fabric. The blockchain-based logistics platform according to the present invention can configure a channel only for participants who want to share data in the logistics process, thereby preventing data exposure to unwanted participants.

In addition, the blockchain-based logistics platform according to the present invention can protect the privacy of the data itself by introducing additional data privacy protection technology.

The blockchain-based logistics platform according to the present invention can provide a technique for ensuring data privacy in the blockchain logistics platform through an anonymous-based authentication technique and Private Data Collection, which are privacy protection techniques.

As shown in FIG. 2 , the blockchain-based logistics platform according to the present invention may include a blockchain network 200 including a blockchain component 210 and a smart contract 220 as a configuration.

The blockchain network 200 may work in association with the carrier 230 , the certification authority 240 , and the seller 250 .

3, the blockchain network component 300 of the present invention includes a carrier peer 310, a carrier distributed ledger 320, an ordering service 330, a seller peer 340, private data 350, and a seller distributed ledger 360 as a configuration.

The smart contract 400 is for ensuring data privacy of participants.

As shown in FIG. 4 , the smart contract 400 may include a proof generating smart contract 410 , an identity authentication smart contract 420 , and a proof verification smart contract 430 as a configuration.

The privacy blockchain platform-based logistics device of the present invention supports an anonymous authentication protocol between participants in a blockchain network using zk-SNARKs, and a platform that provides access control to private data according to the relationship between participants through Private Data Collection structure can be provided.

Zero-knowledge proofs, zk-SNARKs, can prove without revealing their information.

The platform structure of FIG. 5 follows the following assumptions.

- TTP (Trusted Third Party) can check the claim of the Prover

- Input parameters of smart contracts (TSSC, PGSC, PVSC) are not exposed

- Toxic waste used when TSSC (Trusted Setup Smart Contract) generates key-set is safely discarded

- Can identify and authenticate creators of data stored on Ledger in blockchain networks

The procedure for performing the zk-SNARKs-based anonymous authentication protocol performed on the privacy protection blockchain logistics platform is shown in FIG. 5 .

In FIG. 5 , a Prover is a party that proves that it has specific information, and a Verifier may serve to verify that the Prover has the specific information.

A Trusted Third Party may be a trusted organization that certifies specific information possessed by a Prover.

In step A, the Prover and the Trusted Third Party can do Mutual Authentication.

Mutual Authentication is the process of proving that the Prover is the owner of personal or specific information. The mutual authentication method is provided by the Trusted Third Party, and the Prover must submit the credential according to the form provided to the Trusted Third Party.

An example of this is submitting a copy of the driver's license and resident registration card to a Trusted Third Party when issuing credential through driver's license number and social security number.

In step B-1, the Prover sends a Generate Key Request for generating Prover key P _k and Verifier key V _k to the Trusted Third Party.

In step B-2, the Trusted Third Party sends a Trusted Setup Request to the Trusted Setup Smart Contract, and the Trusted Setup Smart Contract generates a Prover key P _k and a Verifier key V _k .

In step B-3, the Trusted Third Party records the generated Prover key P _k and Verifier key V _k and the Prover's claim to the ledger. Here, claim may refer to a certificate for specific information possessed by the Prover.

In the Trusted Setup phase, the Trusted Third Party generates proof for the Prover's sensitive information and creates and binds a key-set used for verification.

Also, in the Trusted Setup step, a claim is created for the information of the Prover verified in the Mutual Authentication step.

In step B-1, the polynomial constraint of zk-SNARKs is transmitted to the Trusted Third Party to generate a key-set, and the Prover's claim is transmitted to the Blockchain Ledger through the Trusted Third Party.

In step B-3, the blockchain ledger stores the received key-set and claim together.

In step C-1, the Prover forwards Disclose a claim to the Verifier.

Correspondingly, in step C-2, the Verifier passes a random value, Challenge, to the Prover.

A Prover can use the services in the blockchain logistics platform using claims registered through a Trusted Third Party. At this time, it is Verifier that provides services to the Prover or verifies the Prover's claims.

Verifier verifies the claim of the Prover. First, in Step C-1, the Prover asserts ownership of the claim stored in the Ledger. In Step C-2, the Verifier uses a random value to prevent a replay attack. (Challenge) is created, assigned to the input value of the polynomial of zk-SNARKs owned by Verifier, and sent to the Prover.

The key here is that the secret information owned by Prover is a polynomial.

The Prover, who receives the random value from the Verifier, creates a proof to prove that it is the rightful owner of the claim.

To generate Proof, in step D-1, Proof sends Generate Proof Request to Proof Generator Smart Contract. In step D-1, a polynomial that satisfies a random value and a constraint is retrieved from the polynomial DB by calling the Proof Generator Smart Contract.

In step D-2, the Proof Generator Smart Contract delivers the Query P _k to the Ledger and brings the Prover key P _k from the Ledger. In step D-2, the Proof Generator Smart Contract acquires a key to generate a proof stored in the ledger.

In step D-3, the Proof Generator Smart Contract generates a Proof (Generator Proof) using the Prover key P _k .

In step D-4, the Proof Generator Smart Contract delivers the generated Proof to the Prover (Generate Proof Response).

In step D-3, the Proof Generator Smart Contract generates a proof based on the key, and delivers the proof generated in step D-4 to the Prover.

After generating the Proof, in step E-1, the Proof passes the Proof to the Verifier. In step E-1, the Prover delivers the proof and polynomial output value delivered to the Proof Generator Smart Contract to the Verifier.

In step E-2, the Verifier sends a Verify Proof Request to the Proof Verifier Smart Contract. In step E-2, Verifier sends a random value, polynomial operation value, and proof to the Proof Verifier Smart Contract to verify the received proof.

In step E-3, the Proof Verifier Smart Contract delivers the Query V _k to the ledger to get the Verifier key V _k from the ledger.

In step E-4, the Proof Verifier Smart Contract verifies the Proof using the Verifier key V _k .

In step E-3, the Proof Verifier Smart Contract obtains a key for verification from the ledger to verify the proof, and in step E-4, the key for verification, proof, random value, and zk-SNARKs based on polynomial operation value Execute verification logic.

The Proof Verifier Smart Contract verifies whether the operation value delivered by the Prover is generated through a random value after operation by substituting a random value into the polynomial owned by the Verifier.

In step E-5, the Proof Verifier Smart Contract delivers the verified Proof to the Verifier (Verify Proof Response).

In step E-6, the verifier proves the claim of the proof.

When verification is completed, in step E-5, the verifier transmits the result, and in step E-6, the verifier determines the authenticity of the prover's claim based on the received result.

6 is a flowchart of an operation of generating transaction information of a seller and storing private data in a legacy DB.

6 describes the operation of generating transaction information and storing private data.

In step 1, the client makes a request to the blockchain peer to create a logistics transaction.

In step 2, the blockchain peer requests a logistics transaction smart contract invoice to the logistics transaction smart contract.

Steps

1 and 2, when a client requests to create a logistics transaction, the black chain peer requests a smart contract invoice related to the logistics transaction.

In step 3, the logistics transaction smart contract creates and transmits a transaction information block to the blockchain peer.

In step 4, the blockchain peer registers logistics transaction information.

Steps

3 and 4 are the process of registering the logistics transaction information by using the block chain peer when the logistics transaction smart contract creates a transaction information block.

In step 5, the blockchain peer requests a private data smart contract invoke from the private data smart contract.

Step 5 is the process in which the blockchain peer requests an Invoke to the private data smart contract to store the private data related to the transaction.

In step 6, the private data smart contract requests storage of the private data legacy DB to the legacy DB.

Step 6 is the process in which the private data smart contract actually stores the private data in the legacy DB (off-chain).

In step 7, the private data smart contract stores the private data hash value in the blockchain ledger.

Step 7 is a process in which the private data smart contract stores only the hash value of the private data in the blockchain ledger.

In step 8, the private data smart contract creates and delivers a private data block to the blockchain peer.

In step 9, the blockchain peer notifies the client of completion of transaction information registration.

Steps 8 and 9 are processes for completing transaction creation and registration.

7 describes an operation of defining access rights in advance when setting access rights to private data stored in the legacy DB and creating a blockchain network.

In step 701, the privacy block chain platform-based logistics device 100 sets a role for each organization.

In step 702, the privacy block chain platform-based logistics device 100 creates an access rule of the legacy DB.

Steps

701 and 702 are a process of creating access rules for legacy DB by setting roles for each organization.

In step 703, the privacy blockchain platform-based logistics device 100 creates a blockchain network.

In step 704, the privacy blockchain platform-based logistics device 100 requests private data about a specific user (organization).

In step 705, the privacy block chain platform-based logistics device 100 checks whether the organization has access to transaction information.

If it is not an organization that has access to transaction information (NO direction in step 705), in step 706, the privacy blockchain platform-based logistics device 100 rejects the request for private data.

If it is an organization that has access to transaction information (four directions in step 705), in step 707, the privacy block chain platform-based logistics device 100 delivers the private data to a requester with legitimate rights.

Hereinafter, in FIG. 8, the workflow of the privacy block chain platform-based logistics device 100 according to embodiments of the present invention will be described in detail.

The privacy blockchain platform-based logistics method according to this embodiment may be performed by the privacy blockchain platform-based logistics device 100 .

First, the privacy block chain platform-based logistics device 100 generates proof information to prove that the carrier who wants to participate in the platform is the owner of the registered carrier information (810). Step 810 may be a process of generating proof information proving that the previously registered carrier information of a carrier who intends to transport the goods for sale is information of a legitimate owner.

In the generation of proof information, the privacy block chain platform-based logistics device 100 can generate a verification key based on the block chain and use it to generate proof information.

To this end, the privacy block chain platform-based logistics device 100 collects personal information of the carrier's, driver's license number, or resident number from a related institution, and the collected personal information is combined with information input from the carrier If they match, the personal information may be used to generate the verification information and a verification key used for verification, and the verification information and the verification key may be recorded in a blockchain distributed ledger.

That is, if the privacy block chain platform-based logistics device 100 is the same as the personal information of the authorized related institution and the input information of the carrier, it generates a verification key for this and registers it in the blockchain distributed ledger. Proof information is generated in relation to the key, and when proof of proof information is requested later, it is possible to prove that the proof information is valid information of the carrier through the verification key held in the blockchain distributed ledger.

In addition, the privacy block chain platform-based logistics device 100 verifies the proof information using a prescribed verification means based on the privacy block chain platform ( 820 ). Step 820 may be a process of verifying the previously generated proof information using the verification key recorded in the blockchain distributed ledger.

In the verification of proof information, the privacy block chain platform-based logistics device 100 can be verified by performing the zk-SNARKs based verification logic.

To this end, the privacy block chain platform-based logistics device 100 creates a proof value proving that the personal information belongs to the carrier according to the verification key record in the block chain distributed ledger, and the privacy block chain platform based For the polynomial operation value derived by applying the proof value to the polynomial of , it can be verified by performing zk-SNARKs-based verification logic as the above-specified verification means.

That is, the privacy block chain platform-based logistics device 100 verifies the proof information by applying the generated proof value related to the proof information to the zk-SNARK (zero-knowledge Succinct Non-interactive ARguments of Knowledge) based verification logic. can do.

Here, the privacy block chain platform-based polynomial may be a polynomial for numerically outputting the degree of accuracy of the input proof value with the original (personal information of the carrier). The polynomial based on the privacy blockchain platform may derive a polynomial operation value as an output.

More specifically, the privacy block chain platform-based logistics device 100 searches for a polynomial that satisfies a random value and a constraint from a polynomial DB through PGSC (Proof Generator Smart Contract), and proves the proof from the block chain distributed ledger. information can be retrieved.

That is, the privacy block chain platform-based logistics device 100 can transmit polynomials and proof information retrieved from the PGSC to the PVSC via the Prover and Verifier constituting the block chain network.

In addition, the privacy block chain platform-based logistics device 100 obtains the verification key from the blockchain distributed ledger through the PVSC to verify the proof information, and adds the verified proof information and the verification value to the polynomial. The zk-SNARKs-based verification logic may be performed on the polynomial operation value derived by application.

Subsequently, the privacy block chain platform-based logistics device 100 permits the transport of the seller's goods to the carrier of the verified proof information ( 830 ). Step 830 may be a process of setting the registration so that the carrier can transport the goods for sale as the carrier information is verified.

More specifically, the privacy block chain platform-based logistics device 100 registers the sale item on the platform, exposes the sale item to the carrier according to the verification of the proof information, and by the carrier, As the item for sale is selected, the seller is provided with the proof information to proceed with the contract for transporting the goods, and after completion of the contract for transporting the goods, the transport of the goods for sale by the carrier is permitted, but the sale By confirming that the goods have arrived at the designated destination, the fixed price can be settled.

That is, the privacy block chain platform-based logistics device 100 can support the overall logistics processing related to the transport of the sales products, such as registration of sales products, exposure of sales products to carriers, selection, contracts, transportation, and payment settlement.

In addition, according to an embodiment of the present invention, in a blockchain logistics platform in which a large number of unspecified institutions participate, anonymity authentication and private data setting are provided to maximize the unique reliability and process simplification of the blockchain, thereby reducing time and cost can be reduced.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiment, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

Software may comprise a computer program, code, instructions, or a combination of one or more thereof, which configures a processing device to operate as desired or is independently or collectively processed You can command the device. The software and/or data may be any kind of machine, component, physical device, virtual equipment, computer storage medium or apparatus, to be interpreted by or to provide instructions or data to the processing device. , or may be permanently or temporarily embody in a transmitted signal wave. The software may be distributed over networked computer systems and stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

As described above, although the embodiments have been described with reference to the limited drawings, those skilled in the art may apply various technical modifications and variations based on the above. For example, the described techniques are performed in an order different from the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims

generating proof information to prove that the carrier who wants to participate in the platform is the owner of the registered carrier information;

using a prescribed verification means based on a privacy block chain platform to verify the proof information; and

Allowing the carrier of the verified proof information to transport the seller's goods for sale;

A logistics method based on a privacy blockchain platform, including
According to claim 1,

The step of generating the proof information includes:

Collecting personal information of the carrier, driver's license number, or resident number from a related institution; and

If the collected personal information matches the information input from the carrier,

Using the personal information, generating the verification information and a verification key used for verification, and recording the verification information and the verification key in a blockchain distributed ledger

A logistics method based on a privacy blockchain platform, including
3. The method of claim 2,

The step of verifying the proof information,

According to the verification key record in the blockchain distributed ledger,

creating a proof value proving that the personal information belongs to the carrier; and

Validating the polynomial calculation value derived by applying the proof value to the privacy block chain platform-based polynomial by performing zk-SNARKs-based verification logic as the prescribed verification means

A logistics method based on a privacy blockchain platform, including
4. The method of claim 3,

The step of verifying by performing the zk-SNARKs-based verification logic,

In PGSC (Proof Generator Smart Contract), searching for a polynomial that satisfies a random value and a constraint from a polynomial DB, and retrieving the proof information from the blockchain distributed ledger - The polynomial and the proof information are Prover and Verifier Passed through and delivered to PVSC (Proof Verifier Smart Contract)-; and

In the PVSC, for the polynomial operation value derived by obtaining the verification key from the blockchain distributed ledger to verify the proof information, and applying the verified proof information and the verification value to the polynomial, the zk- Steps to perform SNARKs-based verification logic

A logistics method based on a privacy blockchain platform, including
According to claim 1,

Allowing the transport comprises:

registering the product for sale on the platform;

exposing the sale article to the carrier according to the verification of the proof information;

As the goods for sale are selected by the carrier,

providing the proof information to the seller to proceed with the goods transport contract; and

After completion of the progress of the goods transport contract, permitting the transport of the goods for sale by the transporter, confirming that the goods for sale have arrived at a designated destination, and settling a fixed price

A logistics method based on a privacy blockchain platform, including
a generator that generates proof information for proving that a carrier who wants to participate in the platform is the owner of the registered carrier information;

a verification unit that verifies the proof information using a prescribed verification means based on the privacy block chain platform; and

A processing unit that allows the transport of the seller's goods to the carrier of the verification information for which the verification has been made

A logistics device based on a privacy blockchain platform that includes
7. The method of claim 6,

The generating unit,

Collecting personal information of the carrier's driver's license number or resident number from related organizations,

If the collected personal information matches the information input from the carrier,

Using the personal information to generate the verification information and a verification key used for verification, and record the verification information and the verification key in a blockchain distributed ledger

Logistics device based on privacy blockchain platform.
8. The method of claim 7,

The verification unit,

According to the verification key record in the blockchain distributed ledger,

Write a proof value proving that the personal information belongs to the carrier,

To verify the polynomial operation value derived by applying the proof value to the privacy block chain platform-based polynomial, performing zk-SNARKs-based verification logic as the specified verification means to verify

Logistics device based on privacy blockchain platform.
9. The method of claim 8,

The verification unit,

Through PGSC, a polynomial that satisfies a random value and a constraint is retrieved from the polynomial DB, and the proof information is retrieved from the blockchain distributed ledger, -The polynomial and the proof information go through Prover and Verifier to PVSC forwarded-

Through the PVSC, the verification information is verified by obtaining the verification key from the blockchain distributed ledger, and for the polynomial operation value derived by applying the verified verification information and the verification value to the polynomial, the zk -SNARKs-based verification logic to perform

Logistics device based on privacy blockchain platform.
7. The method of claim 6,

The processing unit,

Register the sale item on the platform;

In accordance with the verification of the proof information, exposing the sale article to the carrier,

As the goods for sale are selected by the carrier, the seller provides the proof information to proceed with the goods transport contract,

After the completion of the contract for transporting the goods, the transport of the goods for sale by the carrier is allowed, but it is confirmed that the goods for sale have arrived at the designated destination, and the set price is settled.

Logistics device based on privacy blockchain platform.