WO2019013413A1 - Procédé et système d'identification d'utilisation d'informations personnelles d'utilisateur grâce à une chaîne de blocs - Google Patents

Procédé et système d'identification d'utilisation d'informations personnelles d'utilisateur grâce à une chaîne de blocs Download PDF

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Publication number
WO2019013413A1
WO2019013413A1 PCT/KR2017/014823 KR2017014823W WO2019013413A1 WO 2019013413 A1 WO2019013413 A1 WO 2019013413A1 KR 2017014823 W KR2017014823 W KR 2017014823W WO 2019013413 A1 WO2019013413 A1 WO 2019013413A1
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Prior art keywords
block
personal information
user
transaction
information
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PCT/KR2017/014823
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English (en)
Korean (ko)
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최준균
오현택
양진홍
안상홍
박효진
김나경
김민경
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한국과학기술원
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/04—Payment circuits
    • G06Q20/06—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/36—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/02—Marketing; Price estimation or determination; Fundraising
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions

Definitions

  • Embodiments of the present invention can be applied to a variety of services such as joining an Internet portal site, credit card, insurance, chat service, education service, game service, And a technique for grasping and tracking the collection and utilization flow of personal information of the user who has agreed to use the information.
  • the data broker collects data from the personal information provider, analyzes the characteristics of the individual through big data analysis, and sells the discovered information to the service provider. For example, the information is sold to service providers in various fields such as advertisement, recommendation, and policy promotion, and can be used for product recommendation such as advertisement marketing, real estate policy, travel / clothes, etc. based on the information.
  • the opt-out method is a way to block the service only after rejecting the receipt.
  • the United States has supported the opt-out method because it primarily promotes industry promotion and structures the 'privacy business'.
  • Google's 2010 street view Google is opting for Android-based location information.
  • EU European Union
  • the European Union (EU) is on the principle of opting in.
  • the "Data Protection Rules" draft is being enacted in January 2012 and strictly regulates the collection, release and denial of personal information, including collecting up to 0.5% of global annual sales in the event of pre-application violations.
  • the destructive characteristics of the Big Trust include the user's control base, relational preference base, benefits through privacy protection, user rights to election, personal economic defenses and expansion, transparent collection and use, Proven consumer profiles, the appearance of one individual, single sign-on, synergy of interests, rebalancing interests, building confidence, and destroying the market dominance of the Internet majors.
  • Korean Patent Laid-Open Publication No. 10-2013-0142863 relates to a personal information management method and apparatus, which receives a consignment request including a telephone number corresponding to personal information and personal information from a consignment institution system, encrypts the received personal information And then storing the personal information.
  • One embodiment of the present invention is to provide a method and system for allowing personal information to be utilized by a user's control base (i.e., user's control base), which is one of the major issues related to personal information utilization. That is, the present invention is to provide a technology for transferring ownership / initiative of personal information to a personal information provider (i.e., a user terminal) that provides personal information at the data broker side for collecting personal information to utilize personal information.
  • a personal information provider i.e., a user terminal
  • one embodiment of the present invention represents a flow in which personal information is traded by using a block chain used for an encrypted currency transaction such as bit coin, so that a necessary element for a user control base (i.e., a user control base)
  • the present invention is intended to provide a technique for allowing the individual user who is the owner of personal information to confirm the personal information utilization history.
  • a transaction flow providing method for a user personal information comprising: generating a new block including a transaction history of a user corresponding to a predetermined period of time; Further comprising the steps of: connecting the new block to a block chain connected in a chain form, propagating a new block connected to the block chain to a node forming the network, Verifying the validity of the received block, and further connecting the verified block to the block chain.
  • the block chain is structured such that one block is linked in a chain form by time, and the one block may include a plurality of transactions related to personal information of a user.
  • the step of generating the new block includes: a transaction-related basic information including identifier information of a node transmitting the personal information, identifier information of a node receiving the personal information, Information relating to the personal information is included together with the personal information related transaction history, and the user's personal information related transaction history includes at least one of identification information of the user corresponding to the personal information included in the new block, The type of data, and the size of the data.
  • the step of generating the new block includes the steps of generating the personal information to be transmitted from the user terminal to at least one of the data broker server and the service server when the transaction flow providing method is performed by the user terminal And generating the new block by collecting the generated at least one personal information for the predetermined period of time.
  • the step of generating the new block includes processing at least one of the personal information related transaction history and the transaction related basic information of the user included in the new block when the new block is received from the user terminal Step < / RTI >
  • a method for processing a transaction the transaction history including a changed transaction history
  • the machined blocks can be connected in chain form.
  • the method may further include providing a tracking of a transaction flow associated with the user's personal information based on the block chain.
  • the step of providing a transaction flow related to the personal information of the user includes a step of searching for a block included in the block chain by searching for a Merkle tree, Extracting the identifier information of the node that has transmitted and received the personal information of the user based on the identification information of the extracted node, and visualizing and providing the transaction flow based on the extracted identifier information of the node.
  • the new block may be additionally connected to the block chain when validation is completed through the node.
  • a transaction flow providing system for user personal information includes a block generating unit for generating a new block including a transaction history of a user's personal information corresponding to a predetermined period of time, A block propagation unit for propagating a new block connected to the block chain to a node forming a network, and a block propagation unit for propagating the new block to a node forming the network, And a block verification unit for receiving the generated block and verifying the validity of the received block, and the block chain control unit may further connect the verified block to the block chain.
  • the block chain includes a structure in which one block is linked in a chain form, and the one block may include a plurality of transaction details generated in association with personal information of a user.
  • the block generator generates transaction-related basic information including identifier information of a node transmitting the personal information, identifier information of a node receiving the personal information, identifier information of a transaction details,
  • the transaction history of the user includes at least one of identification information of a user corresponding to the personal information included in the new block, personal information of the user, type of data , And data size.
  • the block generating unit when the transaction flow providing system is a user terminal, the block generating unit generates the personal information to be transmitted from the user terminal to at least one of the data broker server and the service server, Information can be collected for the predetermined time to generate the new block.
  • the block generating unit may process at least one of the personal information related transaction history and transaction related basic information of the user included in the new block.
  • a method for processing a transaction the transaction history including a changed transaction history
  • the machined blocks can be connected in chain form.
  • a transaction flow tracking unit may be provided to provide tracking of a transaction flow associated with the user's personal information based on the block chain.
  • the transaction flow tracking unit searches the blocks included in the block chain, based on the identifier information of a user to search based on a Merkle tree search, It is possible to extract the identifier information of the node which transmitted and received and visualize the transaction flow based on the identifier information of the extracted node.
  • the new block may be additionally connected to the block chain when validation is completed through the node.
  • the data broker collects personal information on the ownership / initiative of personal information by allowing the personal information to be utilized by the user's control base (that is, based on the user's control), which is one of the major issues related to the utilization of personal information.
  • a personal information provider i.e., a user terminal
  • a user terminal that provides the information.
  • personal information which is one of the elements necessary for the user control base (i.e., user control base) (Or the usage history of personal information) can be confirmed by the user who is the owner of the information.
  • FIG. 1 is a diagram illustrating a schematic structure of a P2P-based network in which personal information of a user is propagated in an embodiment of the present invention.
  • FIG. 2 is a flowchart illustrating a method of providing a transaction flow for a user's personal information using a block chain, according to an exemplary embodiment of the present invention.
  • FIG. 3 is a block diagram illustrating an internal structure of a system for providing a transaction flow for personal information of a user in an embodiment of the present invention.
  • FIG. 4 is a block chain diagram illustrating a transaction flow of personal information of a user, according to an embodiment of the present invention. Referring to FIG. 4
  • FIG. 5 is a diagram showing a structure in which a block chain is branched according to an embodiment of the present invention.
  • FIG. 6 is a diagram illustrating a structure for generating all transactions related to personal information in one block chain according to an exemplary embodiment of the present invention. Referring to FIG.
  • FIG. 7 is a network structure illustrating an operation of processing personal information of a user at a server of a data broker in an embodiment of the present invention.
  • FIG. 8 is a block diagram illustrating a structure of a block chain manager for storing and maintaining personal information in the form of a block chain, according to an embodiment of the present invention.
  • FIGS. 9A and 9B are diagrams showing a structure of transaction details recorded in one block in an embodiment of the present invention.
  • FIG. 9A is a diagram showing a structure of transaction details recorded in one block in an embodiment of the present invention.
  • FIG. 10 is a diagram illustrating a network structure in which all nodes have a block chain manager for managing and controlling a block chain in an embodiment of the present invention.
  • FIG. 11 is a flowchart illustrating a personal information use history tracking process in an embodiment of the present invention.
  • the present embodiments provide a transaction flow for user's personal information such as name, age, sex, address, telephone number, occupation, hobby, interest field, asset information, marital status, Technology.
  • a data broker collects personal information of a user and provides it to a service provider or other service provider as a transaction, and defines a block used for encrypted currency transactions such as bit coin (BTC)
  • BTC bit coin
  • the present invention relates to a technique for providing a transaction history in which a user's personal information is provided using a block chain, that is, a transaction flow related to a user's personal information, so that the user himself or herself can confirm the transaction flow.
  • a block chain represents a transaction based on a distributed database structure.
  • a transaction is performed to exchange personal information of a user with an external device (e.g., a data broker, a server)
  • the exchange of personal information can also be stored in a block chain form.
  • a transaction may indicate an operation of transmitting location information (e.g., GPS information) of a user terminal, which is one of personal information of a user, to a server (i.e., a service provider) providing the service at the user terminal
  • Location information e.g., GPS information
  • Information indicating the flow of the location information from the user terminal to the server through the devices corresponding to the intermediate data broker may be stored in a block chain form.
  • the block chain is a block in which all records related to personal information transactions (transactions) between a user terminal, a server, and a data broker are recorded in a P2P chain, and all the user terminals participating in the network, Servers, and data brokers.
  • a 'block' may represent a unit that collects user's personal information related transactions occurring in the same time zone.
  • it may correspond to a unit representing transactions to be collected and recorded in one block for a predetermined period of time (for example, a predetermined time period from time 1 to time 2).
  • a 'node' indicates a device of a participant forming a peer-to-peer network in connection with transmission and reception of personal information of a user.
  • a server of the service provider i.e., a service server
  • a data broker that collects user's personal information from the user terminal.
  • the 'data broker' is distinguished from the service provider's server (that is, the service server) and can represent a big data collection server used for collecting big data.
  • a user terminal providing personal information corresponds to a transmitting node in a block-chain-based network
  • a server providing personal information e.g., location information
  • a data broker corresponding to a receiving node in the network and collecting the personal information (e.g., location information) and delivering the collected personal information to the server includes a miner (miner) forming a block chain for encrypted currency transactions such as bit coin ) Terminal.
  • the authenticated blocks indicating that the transaction (i. E., Transaction) has been successfully processed can be chained and chained, and the user terminals can determine, for the newly published blocks, whether they are consistent with the existing chain And if it is positive, the block can be authenticated as being part of the block chain.
  • a user terminal that verifies that the block is valid may add the block to its block chain.
  • the block is rejected and the transmission represented by the transaction (i.e., transaction) contained in the block may be invalidated.
  • the block including the personal information transaction details and the block created through processing such as changing the contents included in the block or adding new information may have a structure of one block type have.
  • the block and the processed block may be connected to the block chain in a chain manner.
  • FIG. 1 is a diagram illustrating a schematic structure of a P2P-based network in which personal information of a user is propagated in an embodiment of the present invention.
  • a user terminal, a server, one or more data brokers, etc. may participate in processing transactions (transactions), such as generating (i.e., publishing), collecting, .
  • transaction may represent a transaction identifier including block information including a personal information transaction history and transaction related basic information, a hash value, and the like.
  • a desktop PC, a notebook, a smart phone, a tablet, or the like is used as a user terminal (i.e., personal information provider) 101, and a dedicated application or a web-based program can be installed to participate in the network 100.
  • a user terminal i.e., personal information provider
  • a dedicated application or a web-based program can be installed to participate in the network 100.
  • the server (i.e., the service provider) 103 may provide the service requested by the user terminal 101 to the user terminal 101 via the dedicated application or program. For example, when the location-based search service is requested, the user terminal 101 provides the location information to the server 103, and the server 103 transmits the game service, .
  • the network 110 may include one or more data brokers and the data broker 102 may collect personal information (e.g., location information) from the user terminal 101 to the server 103 in order to receive a particular service (I.e., deliver) the big data to other data brokers, and to process the big data, to transmit the personal information to the server 103, and to sell the big data to other data brokers.
  • personal information e.g., location information
  • the at least one data broker receives the corresponding block as the block including the personal information transaction history generated at the user terminal 101 is propagated to the network 100, And verify the validity of the block based on the hash value (hash) contained in the received block. If it is valid, the block can be added to the block chain and transmitted to the network 100 to disclose that the block is valid with data proving validity. At this time, the remaining data brokers can also validate the block added to the block chain, and add the added block to its own block chain, if valid. If it is not valid, the block can be discarded without adding it to its block chain.
  • FIG. 2 is a flowchart illustrating a method of providing a transaction flow for a user's personal information using a block chain according to an exemplary embodiment of the present invention.
  • FIG. FIG. 2 is a block diagram showing an internal configuration of a system for providing a transaction flow to a user's personal information.
  • a system for providing a transaction flow for a user's personal information may represent a blockchain manager included in each of a user terminal, a server of a data broker, and a server of a service provider.
  • the personal information transaction flow providing system 300 may include a processor 310, a bus 320, a network interface 330, and a memory 340.
  • the memory 340 may include an operating system 341 and a service providing routine 342.
  • the processor 310 may include a block generator 311, a block chain controller 312, a block propagator 313, and a block verifier 314.
  • the personal information transaction flow providing system 300 may include more components than the components of FIG. However, there is no need to clearly illustrate most prior art components.
  • the personal information transaction flow providing system 300 may include other components such as a display or a transceiver, and may include a transaction flow tracking unit (not shown) for estimating a transaction flow of personal information through a block chain Time).
  • the memory 340 may be a computer-readable recording medium and may include a permanent mass storage device such as a random access memory (RAM), a read only memory (ROM), and a disk drive. Also, the memory 340 may store program codes for the operating system 341 and the service providing routine 342. [ These software components may be loaded from a computer readable recording medium separate from the memory 340 using a drive mechanism (not shown). Such a computer-readable recording medium may include a computer-readable recording medium (not shown) such as a floppy drive, a disk, a tape, a DVD / CD-ROM drive, or a memory card. In other embodiments, the software components may be loaded into the memory 340 via the network interface 330 rather than from a computer readable recording medium.
  • the bus 320 may enable communication and data transfer between components of the personal information transaction flow providing system 300.
  • the bus 320 may be configured using a high-speed serial bus, a parallel bus, a Storage Area Network (SAN), and / or other suitable communication technology.
  • SAN Storage Area Network
  • the network interface 330 may be a computer hardware component for connecting the personal information transaction flow providing system 300 to a computer network.
  • the network interface 330 may connect the personal information transaction flow providing system 300 to the computer network via a wireless or wired connection.
  • the processor 310 may be configured to process instructions of a computer program by performing input / output operations of the basic arithmetic, logic, and personal information transaction flow providing system 300.
  • the instructions may be provided by the memory 340 or the network interface 330 and to the processor 310 via the bus 320.
  • the processor 310 is configured to execute program codes for a block generator 311, a block chain controller 312, a block propagation unit 313, a block verification unit 314, and a transaction flow tracking unit (not shown) .
  • Such a program code may be stored in a recording device such as the memory 340.
  • the block generation unit 311, the block chain control unit 312, the block propagation unit 313 and the block verification unit 314 may be configured to perform the steps 210 through 260 of FIG. 2 and 3, an operation of generating a personal information related block in the user terminal 101 or the server 102 of the data broker and further connecting the personal information related block to the block chain will be described as an example.
  • the block generator 311 may generate a new block including a user's personal information transaction history corresponding to a predetermined time.
  • the block generation unit 311 may generate a new block so that transaction-related basic information is included together.
  • the operation of creating a new block may differ depending on whether the transaction flow providing system 300 corresponds to the user terminal 101 or the data broker 102, and in the case of the data broker 102, The block received from the user terminal 101 can be processed to generate a new block.
  • Blocks containing information processed in time may be linked to the block chain.
  • the detailed operation for creating a new block in the user terminal 101 and the data broker 102 i.e., the server of the data broker
  • the transaction details include the contents of personal information (for example, location information, personal information, financial information, shopping information, payment information, etc.) transmitted to the server 103 of the service provider, (For example, identifier information indicating the identity information of the user terminal (for example, the identifier information of the user terminal) and the type of data (for example, the location information, the personal information, the financial information or the shopping information), the size information . ≪ / RTI >
  • the transaction-related basic information includes identification information (e.g., identification information of a user terminal) of a node that transmits personal information, identification information of a node that receives the personal information (e.g., identifier information of a server of a service provider) , And time information (e.g., a time stamp (timestamp)).
  • identification information e.g., identification information of a user terminal
  • identification information of a node that receives the personal information e.g., identifier information of a server of a service provider
  • time information e.g., a time stamp (timestamp)
  • the block-chain control unit 312 may control the new block to be connected to its own block chain. That is, the block-chain control unit 312 can control that a new block is additionally connected to a block chain in which each block including the personal information related transaction details is connected in a chain form.
  • the block verification unit 314 may receive a block generated by another node forming the network (e.g., another user terminal, a server of a data broker, a server of a service provider, or another data broker).
  • another node forming the network e.g., another user terminal, a server of a data broker, a server of a service provider, or another data broker.
  • the block verification unit 314 may verify the validity of the received block. For example, the validity of the block can be verified based on the public key and the hash value with respect to the digitally signed block at the node.
  • the block controller 312 may control the validated block (i.e., the block received from another node) to be additionally connected to its own block chain.
  • the block generated by itself not only the block generated by itself but also blocks generated from other nodes are additionally connected to their own block chain through validation so that the block chain can be updated every time a personal information related transaction occurs, Can be tracked, i.e., tracked.
  • the transaction flow trace of the user's personal information may be provided through the application as a response to the request of the user terminal, and the processor 310 may be provided with a transaction for providing the user with transaction flow tracking indicating the transaction flow of the personal information And a flow tracing unit (not shown).
  • FIG. 4 is a block chain diagram illustrating a transaction flow of personal information of a user, according to an embodiment of the present invention. Referring to FIG. 4
  • the block chain 400 may indicate that a plurality of blocks 410, 420, and 4430 in which transaction details and transaction-related basic information related to personal information are recorded are linked in a chain form.
  • the block generating unit 311 when the transaction flow providing system 300 corresponds to the user terminal 101, the block generating unit 311 generates a transaction for a predetermined predetermined time period, that is, a transaction from the user terminal to the server of the service provider, Server, and so on. Then, one block including personal information related transaction details and basic information collected for a predetermined period of time can be generated as a new block.
  • the block 11 420 and the block 12 430 are blocks generated before the new block 1010, each of the blocks 420 430, and 440 is connected in a chain form, Since the block is referenced, it is possible to access historical transaction details of personal information.
  • block 11 420 may include (TX0, TX1, TX2, TX3) representing the actual transaction details 421 that have been collected for a period of time.
  • TX1 is the location information of the user terminal corresponding to the time 2
  • TX2 is the location information of the user terminal corresponding to the time 3
  • TX3 is the location information of the user terminal corresponding to the time 1
  • the location information of the user terminal corresponding to the time 4 can be represented.
  • the transaction details may indicate other attribute information (e.g., identifier information of a game item) transmitted from the user terminal to the server of the service provider.
  • the block 11 420 may include a hash value corresponding to each transaction detail 421 for verifying each of the transaction details 421 collected for a predetermined time. At this time, the block 11 420 may include a hash value for each transaction detail 421 in the structure of the merge tree 422 so that the transaction details can be verified without viewing the actual transaction details 421.
  • each of the blocks 410, 420, and 430 connected to the block chain 400 includes a transaction history collected for a predetermined time until the corresponding block is generated, and a hash value corresponding to each transaction history merkle tree, 422) structure.
  • the block generating unit 311 when the transaction flow providing system 300 corresponds to the user terminal 101, the block generating unit 311 generates a block including the server 102 of the data broker and the server of the service provider (I.e., the service server 103), and generate new blocks by collecting the generated personal information for a predetermined period of time.
  • the block generating unit 311 receives the blocks generated from the user terminal 101 from the user terminal 101, Blocks can be created. At this time, the block generating unit 311 may process at least one of the user's personal information related transaction history and transaction related basic information included in the block received from the user terminal 101 to generate a new block. For example, a new block can be created by performing processing to modify time information, identifier information of a node transmitting the block, identifier information of a node to receive the block, and the like.
  • the block chain can be branched every time a machining operation in which the contents included in the block changes / deforms occurs, and the block chain branch will be described with reference to FIG. 5 below.
  • processing operations may occur, such as changing or adding content in relation to a user's personal information at different times each time a time elapses, and a block at time t 1 , a block at time t 2 , The block at time t 3 may be connected to the block chain in a chain form.
  • FIG. 5 is a diagram showing a structure in which a block chain is branched according to an embodiment of the present invention.
  • blocks with a hatching pattern may correspond to a main block.
  • Each node prefers a long block in mining, so it can be converged into the longest block.
  • the block chain 500 can be branched to the block 520 and the original block 530 generated through the processing based on the specific block 510.
  • a block chain containing the block including the personal information in the time t 1 is like the transactions included in the block to change from time t 2 may be branched so as to include a processing block as the processing .
  • two branches may be temporarily formed due to branching.
  • the block in which the next block is first mined may remain in the block chain.
  • the blocks 541 and 542 are disconnected and discarded based on the second branching block 540 in the block chain 500, and the blocks 543, 544, and 545 are connected in a chain- ).
  • a block to be left and a block to be discarded at the branching of the block chain can be determined by using a long block preference policy based on a policy maximizing the profit of each node.
  • investing effort in a short chain of linked chains can be a loss, so you can leave long blocks in a block chain.
  • FIG. 6 is a diagram illustrating a structure for generating all transactions related to personal information in one block chain according to an exemplary embodiment of the present invention. Referring to FIG.
  • the personal information may have various copies different from the money.
  • a procedure such as a personal information utilization agreement
  • a plurality of transactions may be generated in which the same information (that is, the same personal information) is transmitted to a service server or a server of another data broker.
  • all transactions related to personal information i.e., a plurality of transactions for the same information
  • personal information can convey the same information to a plurality of people, there is no need to branch the block chain because the problem of double payment is blocked at the source.
  • a block may not include a duplicate transaction.
  • a block chain-based currency transaction there is a concept of sending money to itself through the concept of change money, but the transaction appears as a zero-sum form, and no additional goods are created using the money itself.
  • Coin mining through proof of work can also be applied as a new input. That is, it can be applied as a deposit concept.
  • new information can be generated through processing based on data included in the personal information (that is, information input as personal information). At this time, the form of processing can also be recorded and tracked, and the information of the owners of the information before the processing can be recorded so that the use of the transparent personal information can be guaranteed.
  • FIG. 7 is a network structure illustrating an operation of processing personal information of a user at a server of a data broker in an embodiment of the present invention.
  • a network that represents the transaction flow of a user's personal information in block chain form includes a user terminal 710, a server 720 of a data broker, a service server 730, and a server 740 of another data broker can do.
  • 7 illustrates that the user terminal 710 includes the block chain manager 712, the server 720 of the data broker, the service server 730, and other servers of the data broker 740 May each include a block chain manager 712.
  • t 1, t 2, t 3 may represent a time (i.e., time information) responsible for the respective blocks.
  • a new block in which transaction details and transaction related basic information including personal information indicating location information of the terminal collected in the user terminal 710 for a certain period of time are recorded can be generated.
  • a new block including personal information 711 collected at a certain time at time t 1 may be generated.
  • the basic information includes the identifier information of the user terminal 710, which is the node that transmits the information 711 included in the new block corresponding to the time t 1 , the identifier information of the server 720 of the data broker which is the node receiving the block, The type of data (e.g., identifier information indicating position information), and the size of the data.
  • transaction details and basic information may be encrypted and recorded in the block corresponding to the time t 1 , if necessary.
  • Server 720 of the data broker can receive a (personal information, 721 recorded in other words, the new block to the time t 1), a block corresponding to the time t 1 from the user terminal 710, to target the received block ,
  • a new block can be created by changing the content of the included information 721.
  • the new block may be generated by including the processed information 722 together with the information 721 in the block corresponding to the time t 1 .
  • a new block (i.e., processed block) containing the processed information 722 may then be delivered to the service server 730. That is, as processing of information occurs at time t 2 , a block including the processed information 722 may be transmitted to the service server 730.
  • the block containing the information 721 received from the user terminal 710 at the server 720 of the data broker may be forwarded to the server 740 of the other data broker.
  • the server 740 of the other data broker processes the information 741 contained in the block received from the server 720 of the data broker, that is, the block corresponding to the time t 1 .
  • a new block (i.e., a processed block) can be generated.
  • time t 3 that is included in the new block
  • the new block of information has occurred in the block, the time t 2 that includes information (711) generated at the time t 1 ( 722, < / RTI >
  • the service server 730 includes a server 720 of a data broker that collects data (personal information) in between the user terminal 710 and the user terminal 710 that are affiliated according to a contract for providing a service requested by the user terminal 710, (E.g., location information) from at least one of the server 730 of the data broker and the server 730 of another data broker.
  • a service requested by the user terminal 710, (E.g., location information) from at least one of the server 730 of the data broker and the server 730 of another data broker.
  • the service may be provided through a service application installed in the user terminal 710.
  • a block including the personal information related transaction history and basic information is transmitted to the server 720 of the data broker, the server 740 of the other data broker, and the service server 730.
  • Information indicating a series of processes to be transmitted to each of the devices 710, 720, 730, 740 can be recorded and stored in the form of a block chain, and the block chain in which the information is recorded can be stored have. Then, based on the block chain, the user can track and understand the transaction flow and utilization level indicating how his / her personal information has been traded.
  • FIG. 8 is a block diagram illustrating a structure of a block chain manager for storing and maintaining personal information in the form of a block chain, according to an embodiment of the present invention.
  • FIG. 8 illustrates a structure of a block-chain manager that describes a block-chain storage method for generation, flow, and usage tracking of personal information.
  • the block-chain manager 800 may store and maintain one block 810, 820, 830 per time t 1 , t 2 , t 3 , and each block 810, 820, Transaction information and transaction-related basic information 811, 812, 821, 822, 831, 832, and 833 of the user's personal information.
  • a block 810 corresponding to a time t 1 connected to a block chain in the user terminal 710 may be transferred to the server 720 of the data broker 720, It is possible to perform processing such as adding contents to the block 810 or changing contents included therein.
  • processing may include sending information to the self-self himself.
  • the time blocks corresponding to t 1 is a transaction history 811 and a transaction history 812 number, and the information 822 generated by processing the information 811 can include the occurrence in time t 2
  • Block 820 corresponding to time t 2 may include transaction history 821 and transaction history 822.
  • the transaction details 812 indicate that the transaction details 811 received from the user terminal 710 have been processed in the server 720 of the data broker and the transaction details 811 indicate that the user's personal information is transmitted to the user terminal 710. [ To the server 720 of the data broker, and the like.
  • block 820 corresponding to time t 2 includes information 821 (i.e. transaction details) indicating that transaction history 811 has been transferred from server 720 of data broker to server 740 of another data broker, and (Transaction details) 822 indicating that the transaction details 812 have been transferred from the server 720 of the data broker to the service server 730.
  • information 821 i.e. transaction details
  • Transaction details 822 indicating that the transaction details 812 have been transferred from the server 720 of the data broker to the service server 730.
  • the block 830 corresponding to the time t 3 includes information 831 indicating that the transaction details 821 have been modified or added to the contents, that is, transaction details, the transaction details 821, Information 832 indicating that the transaction history 831 has been transferred from the server 720 of the data broker 730 to the service server 730 and information indicating that the transaction history 831 has been transferred from the server 720 of the data broker to the service server 730 (Transaction history 833, i.e., transaction details).
  • FIGS. 9A and 9B are diagrams showing a structure of transaction details recorded in one block in an embodiment of the present invention.
  • FIG. 9A is a diagram showing a structure of transaction details recorded in one block in an embodiment of the present invention.
  • a user A i.e., a user terminal held by the user A
  • a game service such as a pokemon game while moving on foot or by using a vehicle.
  • the user A 910 moves the position information (transaction 1) at time 1, which is the current time for a certain period of time, and the position information (transaction 2) at time 2, .
  • the current block 911 including the collected location information i.e., transaction 1 and transaction 2, that is, transaction details
  • the transaction details may further include identifier information indicating the type of the pokemon.
  • the block 911 containing the location information and the new Pokemon information can then be delivered to the service server (e.g., Pokemon High Server 920).
  • time information timestamp
  • information of a transmitting node that transmits the information information of a receiving node, , E2DC3402A
  • basic information 913 stores the owner identifier information (e.g., ID) of the information, the type of data (whether it is location information or Pokemon information, etc.) Data content and the like as transaction details 914.
  • owner identifier information e.g., ID
  • type of data whether it is location information or Pokemon information, etc.
  • the service server 970 can process information based on information (e.g., basic information, transaction details, etc.) included in the block received from the user A 980 and the user B 990 . For example, processing such as merging (or aggregating) information received from user A 980 and user B 990 may be performed and new transaction 972 may be included in current block 971 through information processing . For example, if transaction 1 and transaction 2 were included in the previous block, current block 971 may include transaction 1, transaction 2, and transaction 3 (i.e., a new transaction generated as the information is processed).
  • information e.g., basic information, transaction details, etc.
  • processing such as merging (or aggregating) information received from user A 980 and user B 990 may be performed and new transaction 972 may be included in current block 971 through information processing .
  • current block 971 may include transaction 1, transaction 2, and transaction 3 (i.e., a new transaction generated as the information is processed).
  • the transaction 3 972 includes a user A related information 974 (e.g., location information, a user's identifier information, a type of a handy pokemon), user B related information 973 (e.g., location information, Kind of pokemons, etc.), basic information, and the like.
  • the service server 970 may calculate and store and maintain statistics of users who have previously set a target, such as Picchet, based on the transaction 3 (972), i.e., the block containing the processed information.
  • FIG. 10 is a diagram illustrating a network structure in which all nodes have a block chain manager for managing and controlling a block chain in an embodiment of the present invention.
  • the network may include a server 1000 of a data broker, a user terminal 1050, a service server 1060 and a server 1070 of one or more other data brokers. All the nodes forming the network (i.e., 1000, 1050, 1060, and 1070) may include a blockchain manager 1010, 1051, 1061, and 1071.
  • Each of the block chain managers 1010, 1051, 1061 and 1071 includes a block chain verifier 1011, a block chain distributor 1012, a block chain creator 1013, And a blockchain storage 1014.
  • a block chain verifier 1011 corresponds to the block verification unit 314 of FIG. 3
  • a block chain propagator 1012 corresponds to the block propagation unit 313
  • the block chain creator 1013 corresponds to the block generation unit 311
  • the block chain storage 1014 corresponds to the block chain control unit 312.
  • the visualization module 1015 may be implemented in the block chain manager 1010 or separately and the visualization module 1015 may be implemented in the server 1000 of the data broker, May be implemented to be included in the processor of the user terminal 1050 in addition to the server 1000 of the data broker.
  • a visualization module 1015 that visualizes transaction flow tracking for personal information may be included in both the server 1000 and the user terminal 1050 of the data broker, and any one of the server 1000 and the terminal 1050
  • the visualization module 1015 may include a visualization module 10
  • a block chain creator 1013 stores N transaction details collected for a predetermined time in one block to generate a new block.
  • the block generating unit 311 of FIG. 3 The detailed description of the operation for generating the data is omitted.
  • the block chain storage 1014 stores transaction details in the network by additionally connecting the generated blocks to the block chain, and may correspond to the block chain controller 312 of FIG.
  • the block chain propagator 1012 transfers the new block generated by the block chain creator 1013 to the other block chain managers 1051, 1061, And may correspond to the block propagation unit 313 of FIG.
  • the block chain may be established by verifying the validity of the other nodes existing in the network, which blocks the transaction details, and the authenticated block is additionally connected to the block chain stored in the existing block chain storage unit 1014 have.
  • a block chain verifier 1011 is used for verifying a block containing a new transaction history generated by the external block chain managers 1051, 1061 and 1071.
  • the block verification unit 314 of FIG. The block chain may verify the information recorded in the new block generated by the other node and then store the new block in the block chain storage unit 1014 by confirming the corresponding block (i.e., the corresponding transaction). That is, the new block may be additionally connected to the block chain stored in the block chain storage unit 1014 in a chain form.
  • the personal information manager 1020 is included in the server 1000 of the data broker.
  • a block received from the user terminal Can be used for processing. 10 an operation performed by the personal information manager 1020 is explained separately from the block chain manager 1010, but the operation of processing a block received from the terminal to generate a new block is performed by the block chain manager 1010 ).
  • the personal information manager 1020 includes an open API connector, a personal information processor, a personal information aggregator, and a personal information storage can do.
  • An open API connector may provide an API function for transferring the collected personal information to an external device (e.g., a server of another data broker, a service server, etc.).
  • the open API connector may provide the characteristics or summary of the data (such as statistical values) as well as providing the entire raw data through the API.
  • a personal information collecting module is a module for collecting personal information of a user from a user terminal, and can collect personal information of the user within a range in which the user agrees to provide information.
  • a personal information processor may perform a series of processes to obtain new information or value based on the collected user's personal information.
  • the personal information processor can receive personal information from a plurality of different user terminals in addition to personal information collected from one user terminal, collect personal information of the received different user terminals, You can perform processing for value. For example, in order to generate value for finding out the kind of cosmetics preferred by age, various personal information of various age groups (for example, age, sex, kind of purchased cosmetics, purchase price, preferred brand, etc.) ) Can be collected.
  • Personal information storage is a module for storing acquired personal information.
  • Personal information can be classified according to user (i.e., provider of personal information) according to the identifier information of the user terminal, have. If the data is classified by data type, the data may be divided into categories, and the provider information of each data (e.g., ID information of the user terminal, ID of the data owner, etc.) may be associated with the data and stored and maintained.
  • FIG. 11 is a flowchart illustrating a personal information use history tracking process in an embodiment of the present invention.
  • the processor 300 of FIG. 3 provides a transaction flow tracking unit (not shown) to provide private information usage history, i. E. To provide an action to provide a transaction flow (i.e., to perform each of steps 1110 and 1120 of FIG. 11) (Not shown).
  • the steps 1110 and 1120 of FIG. 11 may be performed by a visualization module 1015.
  • the transaction flow tracking unit searches the Merkle tree for the blocks connected in a chain form included in the block chain, based on the identifier information of the user (for example, the ID of the owner of the personal information) And extract the identifier information of the node that has transmitted the personal information of the user. That is, information (for example, identifier information of a data broker, identifier information of a service server, identifier information of other brokers, etc.) of all nodes transmitting and receiving the personal information of the user on the network can be extracted based on the identifier information of the user have. At this time, when extracting the identifier information of all the nodes, elements extracted according to the reference point may be different.
  • chain information may be generated in which a pair of a transmitting node and a receiving node is linked in a chain form based on the location information have.
  • the identifier information of all the nodes transmitting and receiving the personal information such as the position information can be stored and maintained in association with the business name, business information, and the like so that the user immediately recognizes what the corresponding node is. Then, when the intra-block search is completed, the search can be continued by going to the next block (i.e., the previous block in time).
  • the transaction flow tracking unit may visualize the transaction flow for the personal information based on the identifier information of the extracted node, and provide it to the user. For example, when a transaction flow tracking unit is included in a user terminal, the transaction flow can be provided by visualizing a transaction flow searched on a screen of the user terminal through an application.
  • the server of the data broker includes the transaction flow tracking unit, the chain information in which the identifier information of the extracted node is connected in a chain form can be provided to the user terminal, and the information of the nodes transmitting and receiving the personal information based on the chain information is visualized And can be displayed on the screen of the user terminal.
  • each node configured in the form of a network may be displayed on the screen of the user terminal.
  • a data type corresponding to personal information of a user transmitted and received based on a selected node among a plurality of nodes forming a network displayed on the screen may be displayed together with a node surrounding area selected as an icon. And, it can be displayed on the screen of the user terminal in the form of an overlay arrow to see how much the actual amount is transmitted.
  • the method and system for utilizing the user's personal information utilizing the block chain described above can be implemented by hardware components, software components, and / or a combination of hardware components and software components.
  • the components of the system and system described in the embodiments may be, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable array ), A programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions.
  • the processing device may execute an operating system (OS) and one or more software applications running on the operating system.
  • the processing device may also access, store, manipulate, process, and generate data in response to execution of the software.
  • OS operating system
  • the processing device may also access, store, manipulate, process, and generate data in response to execution of the software.
  • the processing apparatus may be described as being used singly, but those skilled in the art will recognize that the processing apparatus may have a plurality of processing elements and / As shown in FIG.
  • the processing unit may comprise a plurality of processors or one processor and one controller.
  • Other processing configurations are also possible, such as a parallel processor.
  • the software may include a computer program, code, instructions, or a combination of one or more of the foregoing, and may be configured to configure the processing device to operate as desired or to process it collectively or collectively Device can be commanded.
  • the software may be distributed over a networked computer system and stored or executed in a distributed manner.
  • the software and data may be stored on one or more computer readable recording media.
  • the method according to an embodiment may be implemented in the form of a program command 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, and the like, alone or in combination.
  • the program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software.
  • Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like.
  • Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like.

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Abstract

L'invention concerne un procédé et un système d'identification d'utilisation d'informations personnelles d'utilisateur grâce à une chaîne de blocs. Un procédé pour fournir un flux de transaction pour des informations personnelles d'un utilisateur peut comprendre les étapes consistant à : produire un nouveau bloc contenant des détails de transaction associés à des informations personnelles d'utilisateur correspondant à un instant programmé prédéfini ; connecter de plus le nouveau bloc à une chaîne de blocs dans laquelle des blocs respectifs contenant les détails de transaction associés à des informations personnelles sont connectés sous la forme d'une chaîne ; disséminer, vers un nœud formant un réseau, le nouveau bloc connecté à la chaîne de blocs ; permettre au nœud de recevoir le bloc produit ; vérifier la validité du bloc reçu ; et connecter aussi le bloc vérifié à la chaîne de blocs.
PCT/KR2017/014823 2017-07-14 2017-12-15 Procédé et système d'identification d'utilisation d'informations personnelles d'utilisateur grâce à une chaîne de blocs WO2019013413A1 (fr)

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