KR102308997B1 - Method for publick opinion poll and voting management, and devices forperforming the same - Google Patents

Abstract

The present invention relates to an opinion poll and voting management method and devices for performing the same. The opinion poll service providing method according to one embodiment includes: a step of receiving a blind response in which an original response text is blinded with respect to an opinion poll and a random ID generated for the opinion poll; a step of transmitting the random ID and a signed blind response generated by signing the blind response with a private key generated for the opinion poll depending on whether the random ID is included in the participant list of the opinion poll stored as a distributed ledger in a private blockchain; a step of determining, based on a public key generated for the opinion poll, whether the signed blind response stored as a distributed ledger in a global block chain and the signed original response text in which the signed blind response is non-blinded are signed with the private key; and a step of storing the signed original response text in the opinion poll result depending on the determination result.

Description

METHOD FOR PUBLICK OPINION POLL AND VOTING MANAGEMENT, AND DEVICES FORPERFORMING THE SAME

The embodiments below relate to a method of polling and voting management, and devices for performing the same.

The 2020 general election received a lot of attention from the public with a high turnout of about 66% despite the chaos caused by COVID-19. Interest in the general election is growing, and interest and concerns about public opinion polls are also on the rise.

In the existing research market (market, public opinion, survey), the method of collecting opinions by calling a secure number provided by the telecommunication company and collecting opinions by paying a certain amount of compensation to a large number of unspecified panels are mainly used. However, in the case of the result data derived from the above method, it is difficult to support the reliability of the data acquisition, aggregation and verification process disclosure, etc., because it is not easily made. In addition, in the case of survey participants, due to concerns about their identity being exposed, telephone polls show a low participation rate of about 1%.

The embodiments can ensure the transparency and reliability of the poll/voting result by verifying the participant's response to the poll/voting with a plurality of verification procedures using the private blockchain and the global blockchain, and storing the poll result. technology can be provided.

However, the technical problems are not limited to the above-described technical problems, and other technical problems may exist.

A method for providing a poll service according to an embodiment includes receiving a blind response in which the original text of a participant's response to the poll is blinded, and a random ID generated for the poll, through the participant's private blockchain account judging whether the random ID and the private blockchain account match the list of participants of the poll stored in the private blockchain, and converting the blind response into a secret key according to the matching result generating a signed cryptic response; and transmitting the random ID and the signed cryptic response, wherein the participant list includes a random ID and a private blockchain of each of a plurality of participants for the poll. includes accounts.

The generating may include generating the signed blind response by signing the blind response with the private key when the random ID and the private blockchain account match the participant list.

The method includes verifying whether the original signed response stored in the global block chain is signed with the private key through a public key paired with the private key, and the signed response in the global block chain according to the verification result The method further comprises the step of storing the original response text stored together with the original text in the poll result, wherein the signed original text is generated by the participant device of the participant decrypting the signed blind response, and transmitted to the global blockchain can be saved.

The original response text and the signed response text stored in the global block chain may be transmitted and stored in the global block chain together with the poll serial number from the participant device corresponding to the random ID.

The original response text stored in the global blockchain, the signed original response text, and the poll serial number may be transmitted from the participant device corresponding to the random ID through a one-time random address for the global blockchain.

The original response text and the signed response text stored in the global blockchain can be stored in the global blockchain when the poll serial number matches the poll contract for the poll stored in the global blockchain.

The participant list may include a phone number of each of the plurality of participants for the poll, a global blockchain account, a private blockchain account, and a random ID.

1 is a diagram for explaining a block chain technology.
2 is a diagram for explaining the time-sequential connection of the block chain.
3 is a diagram for explaining the type of block chain.
4 is a diagram illustrating a public opinion poll/voting management system according to an embodiment.
5 is a flowchart for explaining the overall operation of the opinion poll/voting management system.
7 to 13 are diagrams for explaining the flowchart of FIG. 5 in detail.
15 to 18 are diagrams illustrating an example of data fields used in a poll/voting management system.

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 description purposes only, and should not be construed as limiting. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or 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 the description of 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.

In addition, in describing the components of the embodiment, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the components from other components, and the essence, order, or order of the components are not limited by the terms. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but another component is between each component. It will be understood that may also be "connected", "coupled" or "connected".

Components included in one embodiment and components having a common function will be described using the same names in other embodiments. Unless otherwise stated, a description described in one embodiment may be applied to another embodiment, and a detailed description in the overlapping range will be omitted.

1 is a diagram for explaining a block chain technology.

Fig. 1 (a) relates to a centralized transaction recording method, and Fig. 1 (b) relates to a distributed transaction recording method using a block chain.

Blockchain is a distributed database that continuously grows by adding new blocks at predetermined intervals. Each of the plurality of blocks included in the block chain may have a unique identifier according to the order in which it is generated.

In addition, blockchain refers to a distributed, independent, and open common ledger. For example, Bitcoin uses blockchain technology to record transactions in a common ledger.

Referring to (a) of FIG. 1 , the central server of the centralized transaction recording method is used in banks, marts, and stores, and records and manages transaction details transmitted from various branches as a single database. According to the centralized transaction recording method, transaction details are managed in one database, and since it is not an open record ledger, internally manipulation or concealment of records may be performed. Alternatively, when the central server is hacked, the records stored in the database may be manipulated at once.

Referring to (b) of FIG. 1 , in the distributed transaction recording method, a plurality of unspecified devices may each serve as a distributed server. The distributed server acquires the authority to create a new block by collecting the transaction details broadcast on the network and searching for a hash of a new block that satisfies a predetermined condition based on the hash of the last block generated on the block chain. can do. A plurality of distributed servers may have a structure to monitor each other. The device that generates the block chain is not predetermined, and the validity of block chains connected from a plurality of unspecified devices can be verified with each other. Therefore, even if records are manipulated in a specific distributed server or a specific distributed server is hacked, the legitimacy of the corresponding block chain may be excluded by other distributed servers on the network.

2 is a diagram for explaining the time-sequential connection of the block chain.

Blocks included in the blockchain are created in a predetermined time unit, and only when a hash that satisfies a predetermined condition is calculated based on the hash of the previous block in time series, it is entitled to create a new block.

A plurality of blocks included in the blockchain can be connected in time series. A hash function means a function that can be calculated in one direction from input to output, but it is impossible or difficult to calculate input from output in the reverse direction. The method to derive the input value of the hash function is the substitution method, Since a desired output must be derived, the time required to derive the input of the corresponding condition may be determined differently depending on the difficulty of the condition to be satisfied.

The hash function may have a difficulty in which a hash can be calculated corresponding to the cycle (eg, 10 minutes) in which the block chain is generated. The hash may be determined as a value satisfying a condition using the hash of the previous block and a transaction newly generated after the previous block (transaction, for example, transaction history). Calculations are performed to calculate the hash of the block chain in a plurality of unspecified devices. When a specific device calculates a hash, a block including the hash in a header may be newly created and added to the blockchain.

When a new block is created, a plurality of devices can start calculation to calculate the hash of the next block based on the time point, and when the hash is calculated, the device that calculated the hash uses another device that includes the hash in the header. blocks can be created. Each block included in the blockchain can contain a different hash.

As shown in FIG. 2, block chains generated at a predetermined cycle are time-sequentially connected, and two or more block chains may be generated at a similar time. In this case, only the blocks that form the longest chain from the first block are recognized as valid blockchains and converge into one blockchain.

3 is a diagram for explaining the type of block chain.

Blockchain can be divided into three types: public, private, and consortium according to the scope of system access and the characteristics of participants. The fact that it has a decentralized network is common to all three blockchains, but it is distinguished by the purpose and characteristics of the participants. Therefore, it can be used by strengthening the control of participants and securing the transaction speed, which is the limit of the block chain. The public block chain is the first form of block chain use, and transaction information is disclosed to all members through the Internet. Although it is the most extensive technology among blockchain types, it has limitations in network expansion and slow transaction speed. In the case of private and consortium blockchains, since they are blockchains designed to overcome the shortcomings of public blockchains, unlike public blockchains, participants can be restricted without disclosing transaction details to everyone.

The characteristics of the three types of blockchain can be summarized in Table 1 below.

1 to 3, the distributed ledger is a blockchain technology in which network components jointly verify information and share a duplicated ledger based on a consensus algorithm to secure integrity and reliability. Such a distributed ledger is a security technology that can prevent forgery and falsification because it is stored in a distributed data environment and cannot individually modify arbitrary information of a third node or an internal node.

4 is a diagram illustrating a public opinion poll/voting management system according to an embodiment.

The poll/voting management system 10 includes an organizer device 100 , a participant device 200 , a service providing system 300 , and a plurality of second distributed servers 400 .

The poll/voting management system 10 verifies the responses of the poll participants with a plurality of validation procedures using a private blockchain and a global blockchain, and stores the poll results to ensure transparency and reliability of poll data. can

The poll/voting management system 10 can use a permissioned private blockchain and a secret signature algorithm to ensure anonymity of poll participants and solve the problem of election fraud.

The opinion poll/vote management system 10 may be applied to a system for voting as well as public opinion polls. For example, when the polling/voting management system 10 is applied to a system for voting, the voter's vote is verified by multiple verification procedures through the private blockchain and global blockchain, and the voting result is stored in the voting result. Transparency and reliability can be guaranteed.

The organizer device 100 may generate public opinion poll information for the poll. For example, the poll information may include a poll name, a poll period, poll questions, and the like. The organizer device 100 may transmit the poll information to the plurality of first distributed servers 310 .

The organizer device 100 may generate a first subject list by selecting a poll subject from a list of first participants registered in the private block chain. The organizer device 100 may transmit the first target list to the plurality of first distributed servers 310 .

The organizer device 100 may transmit the poll information and the subject of the poll to the service providing system 300 . The organizer device 100 may receive the random ID of the poll subject from the service providing system 300 .

The organizer device 100 may request a response to the poll from the participant device 200 together with the random ID and poll information.

The organizer device 100 may process the final poll result data and generate it as poll presentation data.

The participant device 200 may transmit the participant's phone number and global blockchain account to the service providing system 300 .

The participant device 200 may generate a text response to the poll. The participant device 200 may generate a blind response by blind processing the original response through the blind factor and the message factor. For example, the participant device 200 may generate and store the blindness factor as a random value in order to blindly process the original response text. The participant device 200 may generate and store a message factor as a random value in order to distinguish the poll responses of the same content.

The participant device 200 may transmit a transaction including a random ID and a blind response to the plurality of first distributed servers 310 through the private blockchain account granted to the participant.

The participant device 200 may generate a signed original text by decrypting the signed blind response.

The participant device 200 may transmit the original response text, the signed original text response text, and the poll serial number to the plurality of second distributed servers 400 through a one-time random address (address G), which is a global blockchain account randomly generated. .

The service providing system 300 can provide transparency and reliability to the poll by matching whether the response is from the poll target using the participant list registered in the private block chain for the blind response of the poll participants. . That is, the service providing system 300 may verify whether the received blind response is a response from the subject of the poll.

The service providing system 300 may store the original response text in the poll results by verifying whether the original signed response registered by the participant device 200 in the global block chain is a response from the poll subject.

The service providing system 300 may include a plurality of first distributed servers 310 , a management device 330 , and a verification device 350 .

The plurality of first distributed servers 310 may store the received data in a private blockchain as a distributed ledger. The plurality of first distributed servers 310 may transmit data stored in the distributed ledger.

The plurality of first distributed servers 310 may receive the participant's phone number and global blockchain account from the participant device 200 . The plurality of first distributed servers 310 may generate the participant's private blockchain account in response to the participant's phone number and global blockchain account. The plurality of first distributed servers 310 may generate the first participant list using the participant's phone number, global blockchain account, and private blockchain account. The plurality of first distributed servers 310 may register the first participant list in the private blockchain.

The plurality of first distributed servers 310 may generate a random ID for each of the plurality of participants included in the first target list. The plurality of first distributed servers 310 may generate a public key paired with a secret key and a secret key for a public opinion poll.

The plurality of first distributed servers 310 may generate a second participant list by adding a random ID to the first participant list to correspond to each participant. The plurality of first distributed servers 310 may register the second participant list in the private blockchain.

The plurality of first distributed servers 310 may match the random ID and the private blockchain account received from the participant device 200 with the second participant list through the private blockchain.

When the random ID and the private blockchain account received from the participant device 200 match the second participant list, the plurality of first distributed servers 310 signs the blind response with a secret key to generate a signed blind response and can be saved

The management device 330 may generate the second target list by extracting the random ID and phone number of the participant from the second participant list registered in the private block chain. The management device 330 may transmit the second target list to the organizer device 100 .

The management device 330 may receive the poll information and the public key registered in the private block chain. The management device 330 may extract a random ID, poll information, poll serial number, and public opinion poll key from the second participant list.

The management device 330 may generate a poll contract in the global blockchain by transmitting a random ID, poll information, poll serial number, and poll public key to a plurality of second distributed servers 400 . At this time, general users cannot inquire the poll serial number and public poll key registered in the poll contract of the global blockchain.

The management device 330 may extract the signed blind response and the poll serial number stored in the private blockchain. The management device 330 may transmit the signed blind response and the poll serial number to the participant device 200 .

The verification device 350 may receive a valid polling list stored in the poll contract of the global blockchain from the plurality of second distributed servers 400 when the polling period ends.

The verification device 350 may verify whether the original signed response included in the valid opinion poll list is signed with the private key through the public key.

The verification device 350 may store the original response text in the poll results when the signed original text is signed with the private key. The verification device 350 may transmit the poll results to the plurality of second distributed servers 400 and store them in the count contract of the global block chain.

The verification device 350 may generate final poll result data by extracting the poll results stored in the count contract of the global block chain. The verification device 350 may transmit the final poll result data.

The plurality of second distributed servers 400 may store the received data as a distributed ledger in the global block chain. The plurality of second distributed servers 400 may transmit data stored in the distributed ledger. For example, the plurality of second distributed servers 400 may implement a global blockchain platform such as ethereum or klaytn.

The plurality of second distributed servers 400 may store the original response text and the signed response text as a valid poll list when the received poll serial number and the poll serial number registered in the poll contract match.

5 is a flowchart for explaining the overall operation of the opinion poll/voting management system, and FIGS. 7 to 13 are diagrams for explaining the flowchart of FIG. 5 in detail.

Hereinafter, the overall operation of the opinion poll/voting management system will be described in detail with reference to each reference drawing according to the flowchart of FIG. 5 .

Referring to FIG. 6 , the participant devices 100-1 to 100-4 transmit the participant's phone number and global blockchain account (address G(1) to address G(4)) to a plurality of first distributed servers 310 ) can be transmitted.

The plurality of first distributed servers 310 may generate a private blockchain account (address P(1) to address P(4)) in response to receiving the participant's phone number and global blockchain account. The plurality of first distributed servers 310 may generate the first participant list using the participant's phone number, global blockchain account, and private blockchain account. The plurality of first distributed servers 310 may register the first participant list in the private blockchain (510).

Referring to FIG. 7 , the organizer device 100 may transmit poll information to a plurality of first distributed servers 310 . For example, the poll information may include a poll name, a poll period, poll questions, and the like.

The organizer device 100 may generate a first subject list by selecting a poll subject from a list of first participants registered in the private block chain. The organizer device 100 may transmit the first target list to the plurality of first distributed servers 310 .

The plurality of first distributed servers 310 may generate random IDs (random ID (2) and random ID (4)) for each of a plurality of participants included in the first target list. The plurality of first distributed servers 310 may generate a public key and a secret key for the poll. The plurality of first distributed servers 310 may generate a second participant list by adding random IDs (random ID (2) and random ID (4)) to the first participant list to correspond to each participant. The plurality of first distributed servers 310 may register the second participant list in the private block chain ( 520 ).

Referring to FIG. 8 , the management device 330 may generate a second target list by extracting a random ID and phone number of a participant from the second participant list registered in the private block chain. The management device 330 may transmit the second target list to the organizer device 100 . The management device 330 may receive the public opinion poll information and the poll public key registered in the private block chain.

The management device 330 may generate a poll contract in the global block chain by transmitting a random ID, poll information, poll serial number, and poll public key to a plurality of second distributed servers 400 ( 530 ). . The poll contract may include a poll name, poll serial number, poll period, poll public key, random ID, poll question, and the like. At this time, general users cannot inquire the poll serial number and public poll key registered in the poll contract of the global blockchain.

Referring to FIG. 9 , the organizer device 100 transmits the poll information and a random ID to the target devices 100-2 and 100-4 using the second target list to request the poll (540).

Referring to FIG. 10 , the participant device (eg, 100 - 2 ) may generate an original response to the poll. The participant device 100 - 2 may blindly process the original response through the blind factor and the message factor to generate a blind response. For example, the participant device 200 may generate and store the blindness factor as a random value in order to blindly process the original response text. The participant device 200 may generate and store a message factor as a random value in order to distinguish the poll responses of the same content.

The participant device 200 may transmit a transaction including a random ID and a blind response to the plurality of first distributed servers 310 through a private blockchain account (address P) ( 550 ).

Referring to FIG. 11 , the plurality of first distributed servers 310 combine the random ID and the private blockchain account (address P(2)) received from the participant device 200 with the second participant list stored in the private blockchain. can match. When the plurality of first distributed servers 310 match the random ID and private blockchain account (address P(2)) received from the participant device 200 with the second participant list, the secret key is signed to A signed blind response may be generated and stored (560). The plurality of first distributed servers 310 may count the number of times the private key is signed.

Referring to FIG. 12 , the management device 330 may extract a signed blind response and a public opinion poll serial number from the private block chain. The management device 330 may transmit the signed blind response and the poll serial number to the participant device 100-2.

The participant device 200 may generate a signed original text by decrypting the signed blind response ( 570 ).

Referring to FIG. 13 , the participant device 100-2 generates a one-time randomized signature verification factor generated by using the original response text, the original signed response text, the poll serial number, and a part of the blind factor used for obscurity of the original response text. It can be transmitted to the plurality of second distributed servers 400 through the one-time random address (address GR) that is the generated global blockchain account.

When the plurality of second distributed servers 400 match the poll serial number received from the participant device 100-2 and the poll serial number registered in the poll contract, the data received from the participant device 100-2 The original response text and the signed original response text may be stored as a valid opinion poll list (580). For example, a list of valid polls registered in the global blockchain can be inquired from other external devices (not shown). Other external devices (not shown) may individually perform verification using the poll list.

Referring to FIG. 14 , the verification device 350 may receive a valid poll list stored in the poll contract of the global blockchain from the plurality of second distributed servers 400 (eg, the poll period ends) if it is).

The verification device 350 can verify whether the original signed response stored in the global block chain and included in the valid opinion poll list is signed with the private key through the public key paired with the private key. The verification apparatus 350 may receive the counting number from the plurality of first distributed servers 310 . The verification device 350 may check whether the number of signed original texts stored in the global block chain and included in the valid opinion poll list matches the number of signatures. The verification apparatus 350 may store the original response text in the poll results when the signed original text is signed with the private key and the number of signed original texts included in the valid opinion poll list matches the number of signatures. For example, when the original response text is signed 100 times by the plurality of first distributed servers 310, the number of valid opinion polls should be 100 or less. When the number of valid public opinion polls exceeds 100, it may mean that the negative poll is counted as a valid poll.

The verification device 350 may transmit the poll results to the plurality of second distributed servers 400 and store them in the count contract of the global block chain ( 590 ).

15 to 18 are diagrams illustrating an example of data fields used in a poll/voting management system.

The organizer device 100 may use a data field including a poll information field and a subject list field.

The participant device 200 may use a data field including a response text field, a blind response field, a message factor field, a blind factor field, a random address G field, an address G field, and an address P field.

The service providing system 300 may use a data field including a management contract field, a private key field, a public key field, and a poll serial number field.

The plurality of second distributed servers 400 may use a data field including a poll contract field, a count contract field, and a verify contract field.

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.

The 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 device, 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 a different order than 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 (7)

In the method of providing an opinion survey service of the service providing system,
A plurality of first distributed servers included in the service providing system obtain the participant's private blockchain account for the blind response in which the original text of the participant's response to the poll is blinded, and the random ID generated for the poll. receiving through;
determining, by the plurality of first distributed servers, whether the random ID and the private blockchain account match the participant list of the poll stored in a private blockchain;
generating and storing, by the plurality of first distributed servers, signing the blind response with a secret key according to a matching result to generate and storing a signed secret response; and
The verification device included in the service providing system verifies whether the original signed response stored in the global block chain is signed with the private key, and stores the original response text stored together with the signed response text in the global block chain in the poll results step to do
including,
The participant list includes a random ID and a private blockchain account of each of a plurality of participants for the poll,
The signed original text is
The participant's device of the participant non-cryptocurred the signed cryptographic response, generated it, and transmitted and stored it to the global block chain,
The original response text and the signed response text stored in the global blockchain are,
From the participant device corresponding to the random ID, it is transmitted and stored to the global block chain along with the signature verification factor generated using the poll serial number and a part of the blind factor used for obscurity of the original text of the response. How to provide polling services. According to claim 1,
The step of generating and storing the signed cryptographic response comprises:
when the random ID and the private blockchain account match the participant list, signing the blind response with the private key to generate the signed blind response; and
Counting the number of times the private key is signed
A method of providing polling services, including 3. The method of claim 2,
The step of storing the poll results is,
verifying, by the verification device, whether the original signed response stored in the global block chain is signed with the private key, using the public key paired with the private key;
checking, by the verification device, whether the number of signed original texts stored in the global block chain matches the number of signatures; and
Storing, by the verification device, the original response text stored together with the signed response text in the global block chain in the poll results according to the verification result and the verification result
containing,
How to provide polling services. delete 4. The method of claim 3,
The original response text stored in the global block chain, the signed response text text, the poll serial number and the signature verification factor are,
From the participant device corresponding to the random ID, it is transmitted through a one-time random address for the global blockchain.
How to provide polling services. 4. The method of claim 3,
The original response text and the signed response text stored in the global blockchain are,
When the poll serial number matches the poll contract for the poll stored in the global blockchain, it is stored in the global blockchain
How to provide polling services. According to claim 1,
The list of participants is
Each of the plurality of participants for the poll includes phone numbers, global blockchain accounts, private blockchain accounts, and random IDs together
How to provide polling services.

Images