CN107294727B - Electronic voting method, terminal equipment and block chain network - Google Patents

Electronic voting method, terminal equipment and block chain network Download PDF

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Publication number
CN107294727B
CN107294727B CN201710361809.0A CN201710361809A CN107294727B CN 107294727 B CN107294727 B CN 107294727B CN 201710361809 A CN201710361809 A CN 201710361809A CN 107294727 B CN107294727 B CN 107294727B
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information
digital signature
voter
voting
terminal equipment
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CN107294727A (en
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李艳东
高峰
沈蒙
祝烈煌
刘胜
殷舒
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Union Mobile Pay Co Ltd
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Union Mobile Pay Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C13/00—Voting apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0407—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the identity of one or more communicating identities is hidden
    • H04L63/0421—Anonymous communication, i.e. the party's identifiers are hidden from the other party or parties, e.g. using an anonymizer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/12—Applying verification of the received information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/12—Applying verification of the received information
    • H04L63/123—Applying verification of the received information received data contents, e.g. message integrity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
    • H04L9/3257—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures using blind signatures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3297—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving time stamps, e.g. generation of time stamps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/46—Secure multiparty computation, e.g. millionaire problem
    • H04L2209/463—Electronic voting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
    • H04L9/0866—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving user or device identifiers, e.g. serial number, physical or biometrical information, DNA, hand-signature or measurable physical characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
    • H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

The embodiment of the invention relates to the technical field of communication, in particular to an electronic voting method, terminal equipment and a block chain network, which are used for improving the credibility of voting results. In the embodiment of the invention, the terminal equipment generates a random message for each voter; the terminal equipment determines a first digital signature corresponding to the random information; the terminal equipment broadcasts voting information to each node in the block chain network; the voting information comprises random information, a first digital signature and the identification of the voter to be voted; because the blocks in the block chain in each node in the block chain network are generated according to the time sequence, the sequence of the blocks in the block chain network is equivalent to the effect of the time stamp, and each block stores the index of the previous block, the voting information in the block chain can not be tampered, and the reliability of the voting result is enhanced.

Description

Electronic voting method, terminal equipment and block chain network
Technical Field
The embodiment of the invention relates to the field of communication, in particular to an electronic voting method, terminal equipment and a block chain network.
Background
The network voting is a new voting mode which appears along with the development of the internet, breaks through the limitation of the traditional voting mode in time and region, and greatly expands the range of participating people. However, most internet voting currently requires users to be real-name, which makes users unable to select the object that they really want to vote for due to various privacy concerns. Meanwhile, due to the defects of a HyperText Transfer Protocol (HTTP) and the complexity of identity confirmation of network participants, the network participants are very easy to be attacked by cheating, and behaviors such as 'ticket swiping' of voters occur. Furthermore, in the prior art, the counting process of the tickets depends on a counting mechanism to count the number of the tickets, and the actions of forgetting or cheating in the counting center are difficult to find in time; furthermore, the effect of each voter on the total number of votes is not the same due to differences in the identity of the voters.
The voting method in the prior art comprises the following steps: the voter adopts a network Identifier (ID) temporarily distributed by a website, fills a voting ticket in a client browser, and then submits the filled voting ticket to a server for recording. However, the temporary identity is adopted by the voting method, so that the legality of the identity of the voter cannot be verified, and the behaviors of swiping the same identity or multiple times of swiping the same IP are easy to occur; moreover, the result of the vote counting is at the server side, so that the possibility of cheating can appear, and the reliability of the voting result is poor.
Disclosure of Invention
The embodiment of the invention provides an electronic voting method, terminal equipment and a block chain network, which are used for improving the credibility of voting results.
The embodiment of the invention provides an electronic voting method, which comprises the following steps:
the terminal equipment generates random information for each voter; the terminal equipment determines a first digital signature corresponding to the random information; the terminal equipment broadcasts voting information to each node in the block chain network; the voting information includes random information, a first digital signature, and an identification of the voter.
Optionally, the determining, by the terminal device, a first digital signature corresponding to the random information includes: the terminal equipment carries out blind transformation on the random information to obtain first information; the terminal equipment sends first information to a registration device; the terminal equipment receives a second digital signature sent by the registration device; wherein the second digital signature is generated from the first information; and the terminal equipment de-blinds the second digital signature to obtain a first digital signature corresponding to the random information.
Optionally, before the terminal device receives the second digital signature sent by the registration apparatus, the method further includes: the terminal equipment sends the identity information of the voter to the registration device; wherein the identity information of the voter is used to: enabling the registration device to determine a private key corresponding to the second digital signature and ticket number weight corresponding to the private key; the private key and the ticket number weight corresponding to the private key are generated by the registration device.
Optionally, before the terminal device broadcasts the voting information to each node in the blockchain network, the method further includes: the terminal equipment acquires the identification of the voter to be voted; the terminal equipment generates a third digital signature according to the identification of the voter to be voted, the random information and the first digital signature; the terminal device broadcasts the third digital signature and the voting information to each node in the blockchain network.
The embodiment of the invention provides an electronic voting method, which comprises the following steps: each node in the block chain network receives voting information broadcasted by the terminal equipment; the voting information comprises the random information, the first digital signature and the identification of the voter to be voted; each node in the block chain network determines whether the random information is legal or not according to a public key corresponding to the first digital signature; each node in the block chain network determines the total vote corresponding to the identifier of the voter according to the number of the random information corresponding to the identifier of the voter and the vote weight corresponding to the public key corresponding to the first digital signature; the public key and the ticket number weight corresponding to the public key are generated by the registration device.
Optionally, before each node in the blockchain network determines whether the random information is legal according to the public key corresponding to the first digital signature, the method further includes: each node in the block chain network receives a third digital signature sent by the terminal equipment; wherein the third digital signature is generated by the terminal device according to voting information; wherein the voting information comprises the random information, the first digital signature, and an identification of a voter; and each node in the block chain network determines whether the voting information is legal or not according to the public key corresponding to the third digital signature.
The embodiment of the invention provides terminal equipment suitable for electronic voting, which is characterized by comprising the following components: the generating unit is used for generating random information for each voter; the processing unit is used for determining a first digital signature corresponding to the random information; a sending unit, configured to broadcast voting information to each node in the blockchain network; the voting information includes random information, a first digital signature, and an identification of the voter.
Optionally, a processing unit for: blind transformation is carried out on the random information to obtain first information; the terminal equipment de-blinds the second digital signature to obtain a first digital signature corresponding to the random information; a transmitting unit configured to: sending first information to a registration device; further comprising a receiving unit for: receiving a second digital signature sent by the registration device; wherein the second digital signature is generated from the first information.
Optionally, the sending unit is further configured to: sending identity information of a voter to the registration device; wherein the identity information of the voter is used to: enabling the registration device to determine a private key corresponding to the second digital signature and a ticket number weight corresponding to the private key; the private key and the ticket number weight corresponding to the private key are generated by the registration device.
Optionally, the system further comprises an obtaining unit, configured to: the terminal equipment acquires the identification of the voter to be voted; a processing unit to: generating a third digital signature according to the identification of the voter, the random information and the first digital signature; a transmitting unit configured to: broadcasting the third digital signature and the voting information to each node in the blockchain network.
The embodiment of the invention provides a block chain network suitable for electronic voting, which comprises the following steps: a receiving unit, configured to receive voting information broadcasted by a terminal device; the voting information comprises random information, a first digital signature and the identification of the voter to be voted; the processing unit is used for determining whether the random information is legal or not according to the public key corresponding to the first digital signature; determining the total vote corresponding to the identifier of the voter according to the number of the random information corresponding to the identifier of the voter and the vote weight corresponding to the public key corresponding to the first digital signature; the public key and the ticket number weight corresponding to the public key are generated by the registration device.
Optionally, the receiving unit receives a third digital signature sent by the terminal device; wherein the third digital signature is generated by the terminal device according to voting information; wherein the voting information comprises the random information, the first digital signature, and an identification of a voter; the processing unit is configured to: and determining whether the voting information is legal or not according to the public key corresponding to the third digital signature.
In the embodiment of the invention, the terminal equipment generates a random message for each voter; the terminal equipment determines a first digital signature corresponding to the random information; the terminal equipment broadcasts voting information to each node in the block chain network; the voting information includes random information, a first digital signature, and an identification of the voter. In the embodiment of the invention, the terminal equipment broadcasts the voting information to each node in the block chain network, and as the blocks in the block chain in each node in the block chain network are generated according to the time sequence, the sequence of the blocks in the block chain network is equivalent to the effect of the time stamp, and each block stores the index of the previous block, the voting information in the block chain can not be falsified, and the reliability of the voting result is enhanced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below.
FIG. 1 is a system architecture diagram according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an electronic voting method according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of another electronic voting method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a block chain network according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 is a schematic diagram illustrating a system architecture to which an embodiment of the present invention is applicable, and as shown in fig. 1, the system architecture to which an embodiment of the present invention is applicable includes a registration apparatus 101, a terminal device 102, and a block chain network 103, which are connected by a wireless connection, a wired connection, or other means.
The registration apparatus 101 may be a device or a server in a registration authority, and is configured to generate N pairs of asymmetric keys, and publish public keys of the N pairs of asymmetric keys to the outside, where each public key corresponds to a weight of a ticket number; wherein N is an integer of 1 or more. The registration means is also arranged to verify the validity of the identity information of the voter, for example the voter may be required to go to a registration authority to verify the identity information. When the registration device determines that the identity information of the voter is legal, determining whether the voter qualifies for voting; if the voter is determined to be qualified, the voter qualifies for a vote the first time the voter signs the vote; then receiving the first information provided by the voter after blind transformation, and carrying out digital signature on the first information to generate a second digital signature; a valid electronic ballot is signed for the vote. The registering means 101 sends the signed legal electronic ballot to the terminal device 102.
The terminal device 102 may communicate with one or more core networks through a Radio Access Network (RAN), and the terminal device may refer to a User Equipment (UE), an Access terminal, a Personal Digital Assistant (PDA), a handheld device having a wireless communication function, a computing device or other processing devices connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network, and the like. The terminal equipment is used for generating random information corresponding to each voter, carrying out blind transformation on the generated random information and sending first information after the blind transformation to the registration device; and the terminal equipment receives the second digital signature sent by the registration device, and performs de-blinding on the received second digital signature to obtain a true digital signature of the registration mechanism on the random information, namely the first digital signature. The terminal device acquires the identifier of the voter to be voted, forms voting information, and transmits the voting information to the block chain network 103.
The blockchain network 103 includes a first node 104, a second node 105, a third node 106, a fourth node 107, and a fifth node 108, where each node in the blockchain network may be any machine, such as a server, a mobile terminal on the user side, each node has a routing function, each node may be randomly connected to other nodes, and the nodes perform point-to-point communication, such as sending voting information, through the ethernet network. In the block chain network, some nodes do not have block chains, and the nodes without the block chains forward the received voting information. Furthermore, each node in the blockchain network allows a complete copy of the database to be obtained. Based on a set of consensus mechanism, the nodes maintain the whole block together through competition calculation, any node fails, and other nodes can work normally. Each time the voting information is visible to all nodes. Because the nodes are distrusted, the nodes do not need to be publicly identified, and each participated node is anonymous. The nodes cannot be spoofed or spoofed as long as the operation is performed according to the rules set by the system. Each node in the block chain network periodically collects voting information, wherein the nodes with miners pack the collected voting information into a new block, and finally the voting information packed by the miners who compete out is approved by all the nodes; all nodes in the blockchain network then synchronize the block, and after all nodes in the blockchain network synchronize the block, each node in the blockchain network stores voting information. And then each node in the block chain network enters the next collection, and the block chain is continuously prolonged.
Fig. 2 schematically illustrates a flow chart of an electronic voting method provided by an embodiment of the present invention.
Based on the system architecture shown in fig. 1, as shown in fig. 2, the electronic voting method provided by the embodiment of the present invention includes the following steps:
step S201, the terminal equipment generates a random message for each voter;
step S202, the terminal equipment determines a first digital signature corresponding to the random information;
step S203, the terminal equipment broadcasts voting information to each node in the block chain network; the voting information comprises random information, a first digital signature and the identification of the voter to be voted;
step S204, each node in the block chain network receives voting information broadcasted by the terminal equipment; the voting information comprises random information, a first digital signature and the identification of the voter to be voted;
step S205, each node in the block chain network determines whether the random information is legal or not according to a public key corresponding to the first digital signature;
step S206, each node in the block chain network determines the total ticket number corresponding to the identification of the voter according to the number of the random information corresponding to the identification of the voter and the ticket number weight corresponding to the public key corresponding to the first digital signature; the public key and the ticket number weight corresponding to the public key are generated by the registration device.
In the embodiment of the invention, the terminal equipment broadcasts the voting information to each node in the block chain network, and as the blocks in the block chain in each node in the block chain network are generated according to the time sequence, the sequence of the blocks in the block chain network is equivalent to the effect of the time stamp, and each block stores the index of the previous block, the voting information in the block chain can not be falsified, and the reliability of the voting result is enhanced.
In step S201, the random information includes any random number, or random information carrying an identifier of the voter, or information of any combination of the identifier of the voter and the random number, or information of a combination of the identifier of the voter and any other information.
Optionally, in this embodiment of the present invention, before the terminal device receives the second digital signature sent by the registration apparatus, the method further includes: the terminal equipment sends the identity information of the voter to the registration device; wherein the identity information of the voter is used to: enabling the registration device to determine a private key corresponding to the second digital signature and ticket number weight corresponding to the private key; the private key and the ticket number weight corresponding to the private key are generated by the registration device.
In the embodiment of the invention, the terminal equipment sends the identity information of the voter to the registration device, and after the registration device receives the identity information of the voter, the registration device determines the ticket number weight corresponding to the identity information of the voter, so that the registration device can conveniently use the private key corresponding to the ticket number weight to carry out digital signature.
In the embodiment of the invention, after receiving identity information of a voter, a registration device determines the validity of the identity information of the voter, determines whether the identity information of the voter is registered for the first time when the identity information of the voter is legal, and refuses to receive first information of the voter sent by terminal equipment if the registration device determines that the identity information of the voter is illegal or the identity information of the voter is not registered for the first time; and if the registration device determines that the identity information of the voter is legal and the identity information of the voter is registered for the first time, sending first information corresponding to the voter to the terminal equipment.
In the embodiment of the invention, the registration device generates a plurality of pairs of asymmetric keys and publishes public keys in the plurality of pairs of asymmetric keys to the outside. Wherein each pair of asymmetric keys corresponds to a weight of a ticket number; the embodiment of the invention provides a way for determining the weight of the ticket number corresponding to the asymmetric key, namely the weight of the ticket number corresponding to each pair of asymmetric keys is determined according to the identity information of voters; for example, when the registration apparatus determines that the identity information of a voter has a higher level, and digitally signs the first information provided by the voter using the asymmetric key, the weight of the number of votes corresponding to the private key used is higher, that is, the number of votes represented by the votes is larger when counting the votes.
In the embodiment of the invention, the terminal equipment generates random information for each voter, and blind transformation is carried out on the random information by the terminal equipment to obtain first information; the terminal equipment sends first information to a registration device; after receiving the first information, the registration device performs digital signature on the first information by adopting an algorithm agreed with the terminal equipment to obtain a second digital signature, the second digital signature is sent to the terminal equipment, and the terminal equipment performs de-blinding on the second digital signature after receiving the second digital signature to obtain a true digital signature of the random information, namely the first digital signature.
In the embodiment of the invention, the random information comprises any random number, or random information carrying the identifier of the voter, or any combination of the identifier of the voter and the random number, or combination information of the identifier of the voter and any other information. When the first information provided by the terminal equipment comprises the identifier of the voter to be voted, the identifier of the voter to be voted cannot be modified when the node in the block chain network receives the random information; thus, the voting information can be further prevented from being tampered.
In the embodiment of the invention, the first digital signature which is determined by the terminal and is carried out on the random information is obtained by blinding the second digital signature which is obtained by blindly signing the first information by the registration device, and the registration device carries out blind signature on the first information sent by the terminal. On the one hand, no one other than the registered device can generate a valid blind signature on his behalf; on the other hand, once the first information is digitally signed by the registration device, it cannot be denied; further, although the registration device digitally signs the first information sent by the terminal device, the registration device cannot determine the specific content of the original information corresponding to the signed first information, that is, the registration device cannot determine the real content of the first information corresponding to the voter, and once the first digital signature is disclosed, the registration device cannot determine when to sign the digital signature and cannot determine the identity information of the voter corresponding to the first digital signature; thus, the identity information of the voter is made more anonymous.
Optionally, after determining the first digital signature of the random information by the registration apparatus, before the terminal device broadcasts the voting information to each node in the blockchain network, the method further includes: the terminal equipment acquires the identification of the voter to be voted; the terminal equipment generates a third digital signature according to the identification of the voter to be voted, the random information and the first digital signature; the terminal device broadcasts the third digital signature and the voting information to each node in the blockchain network. In the embodiment of the invention, taking the bit currency network as an example, the identifier of the voter can be an address A published by the voter or an address generated by calculation according to a public key; in the bitcoin network, the terminal device can generate any address B, and the terminal device forms voting information from the address B to the address A, wherein the voting information comprises: an identification of a voter, the random information, and the first digital signature. The terminal equipment generates a pair of asymmetric keys while generating an address B, generates abstract information from voting information by adopting an algorithm agreed with a block chain network, such as a hash function, encrypts the abstract information by using a private key in the asymmetric key generated by the terminal equipment, and obtains the encrypted abstract information as a third digital signature; and transmitting the third digital signature, the public key in the asymmetric key generated by the terminal and the voting information to each node in the block chain network.
Correspondingly, optionally, before each node in the block chain network determines whether the random information is legal according to the public key corresponding to the first digital signature, the method further includes: each node in the block chain network receives a third digital signature sent by the terminal equipment; wherein the third digital signature is generated by the terminal device according to voting information; wherein the voting information comprises the random information, the first digital signature, and an identification of a voter; and each node in the block chain network determines whether the voting information is legal or not according to the public key corresponding to the third digital signature.
In the embodiment of the invention, the step of determining that the voting information is legal comprises the step of determining whether the received voting information is consistent with the voting information sent by the terminal equipment or not, so that the voting information sent by the terminal equipment is ensured not to be tampered, and the integrity of the received voting information is ensured.
In the embodiment of the invention, the terminal device sends the voting information, the third digital signature and the public key generated by the terminal device to each node in the block chain network, after each node in the block chain network receives the third digital signature, the public key generated by the terminal device and the voting information, the summary information is calculated for the received voting information by using an algorithm appointed by the terminal device, the public key generated by the terminal device is used for decrypting the third digital signature to obtain the summary information sent by the terminal device, whether the summary information sent by the terminal device is the same as the calculated summary information or not is determined, if the summary information is the same as the calculated summary information, the message sent by the terminal device to each node in the block chain network is not tampered, and thus the integrity of the voting information received by each node in the block chain network can be ensured.
In the embodiment of the invention, after each node in the block chain network determines that the voting information is complete, whether the random information and the first digital signature in the voting information appear for the first time or not is determined, and if the random information and the first digital signature appear for the first time, the node in the block chain network verifies the validity of the first digital signature according to all public keys published by the registration device, namely, whether the first digital signature is signed by the registration device and whether the random information is not tampered. Therefore, the authenticity of the voting information source and the integrity of the transaction list can be verified, and the voting information is prevented from being tampered.
In the embodiment of the invention, after each node in the block chain network determines that the random information and the first digital signature are legal, each node in the block chain network periodically collects the legal voting information in the period of time, wherein the nodes with miners pack the collected voting information into a new block, and finally, only the voted voting information packed by the miners with winning competition is approved by all the nodes; all nodes then synchronize this block before entering the next collection, extending the block chain continuously.
In the embodiment of the invention, all the voting information is recorded in the block chain, all the nodes can count the votes, the number of votes and the source of the votes of voters can be inquired in the block chain, the total number of the votes of each voter can be calculated, and the vote counting device can verify the legality of the voting information through a public key published by the registration device, namely verify the legality of the random information, but the vote counting device cannot track the real identity information of the voter, thereby further improving the anonymity of the identity of the voter.
In order to more clearly introduce the above method flow, fig. 3 exemplarily shows another electronic voting method provided by the embodiment of the present invention.
Step 301, the registration device generates N pairs of asymmetric keys, and publishes public keys in the N pairs of asymmetric keys to the outside; wherein each public key corresponds to a specific voting weight; wherein N is an integer greater than or equal to 1;
optionally, the registration apparatus may also publish a public key;
step 302, the registration device receives identity information of a voter sent by the terminal equipment; wherein, the identity information of the voter can uniquely identify the voter;
step 303, the registration device judges whether the identity information of the voter is legal; if the identity information of the voter is determined to be legal, executing step 304, and if the identity information of the voter is determined to be illegal, executing step 306;
optionally, the registration device may be a device in a registration authority, and the voter may confirm the validity of the identity information in the registration authority;
step 304, the registration device determines whether the voter qualifies for a vote; if the registration device determines that the voter qualifies for a vote, go to step 305; if the voter is determined not to be qualified, go to step 306;
optionally, the registration means determines whether the identity information of the voter is first registered, and if the identity information of the voter is first registered, the voter is considered to have voting qualification; if the registration device determines that the identity information of the voter is not registered for the first time, determining that the voter does not have the voting qualification;
305, the registration device sends a request for providing vote information to the terminal equipment;
step 306, the registration device refuses to carry out digital signature on the vote information provided by the voter;
step 307, the terminal equipment generates a random message after receiving the request of the vote message provided by the registration device;
308, the terminal equipment performs blind transformation on the generated random information to obtain first information;
step 309, the terminal equipment sends first information to the registration device;
step 310, the registration device determines the identity information of the voter corresponding to the received first information, determines the private key of the corresponding voting weight according to the identity information, and digitally signs the first information by using the private key of the voting weight by adopting an algorithm agreed with the terminal equipment to obtain a second digital signature;
optionally, the agreed algorithm comprises a hash function algorithm;
step 311, the registration device sends a second digital signature to the terminal equipment;
step 312, after the terminal device receives the second digital signature, performing de-blinding on the second digital signature; obtaining a first digital signature of the registration device on the random information;
313, the terminal equipment acquires the identification of the voter to be voted;
alternatively, the identification of the voter may be an address published by the voter, or an address generated by public key calculation;
step 314, the terminal equipment generates any address corresponding to the voter and an asymmetric key corresponding to the address;
315, the terminal device performs digital signature on the voting information to obtain a third digital signature; the new voting information comprises random information, a first digital signature and the identification of the voter to be voted;
step 316, the terminal device sends the new voting information, the third digital signature and the public key generated by the terminal device to each node in the block chain network;
step 317, each node in the block chain network receives the voting new information, the third digital signature and the public key generated by the terminal device;
step 318, each node in the block chain network verifies whether the received third digital signature is legal or not; when the third digital signature is verified to be legal, step 319 is executed, and when the third digital signature is verified to be illegal, step 320 is executed;
319, each node in the blockchain network determines whether the received random information and the first digital signature are received for the first time, if not, execute 320, and if so, execute 321;
step 320, each node in the block chain network discards the received voting new information;
step 321, each node in the block chain network determines whether the first digital signature is legal according to the public key published by the registration device; if the first digital signature is determined to be legal, executing step 322, and if the first digital signature is determined not to be legal, executing step 320;
step 322, periodically collecting each new voting information by each node in the block chain network, wherein the nodes with miners pack all the collected new voting information into a new block; all the voting new information packaged by the miners who win the competition is approved by all the nodes; then each node in the blockchain network synchronizes the block;
optionally, each node in the block chain network records the number of votes of the voted person and the weight corresponding to each vote; wherein, the weight corresponding to each ticket is determined according to the public key published by the registration device; the votes of the voters and the corresponding weights of the corresponding votes are recorded on each node. Therefore, cheating during the vote counting can be prevented, and the reliability of the voting result is improved.
From the above, it can be seen that: in the embodiment of the invention, because the terminal device broadcasts the voting information to each node in the block chain network, the blocks in the block chain in each node in the block chain network are generated according to the time sequence, the sequence of the blocks in the block chain network is equivalent to the effect of the time stamp, and each block stores the index of the previous block, the voting information in the block chain can not be tampered, and the reliability of the voting result is enhanced.
Fig. 4 schematically shows a structural diagram of a terminal device suitable for electronic voting according to an embodiment of the present invention.
Based on the same conception, the embodiment of the present invention provides a terminal device, as shown in fig. 4, a terminal device 400 includes a generating unit 401, a processing unit 402, and a sending unit 403, and optionally further includes a receiving unit 404 and an obtaining unit 405. Wherein:
the generating unit is used for generating random information for each voter; the processing unit is used for determining a first digital signature corresponding to the random information; a sending unit, configured to broadcast voting information to each node in the blockchain network; the voting information includes random information, a first digital signature, and an identification of the voter.
Optionally, a processing unit for: blind transformation is carried out on the random information to obtain first information; the terminal equipment de-blinds the second digital signature to obtain a first digital signature corresponding to the random information; a transmitting unit configured to: sending first information to a registration device; further comprising a receiving unit for: receiving a second digital signature sent by the registration device; wherein the second digital signature is generated from the first information.
Optionally, the sending unit is further configured to: sending identity information of a voter to the registration device; wherein the identity information of the voter is used to: enabling the registration device to determine a private key corresponding to the second digital signature and a ticket number weight corresponding to the private key; the private key and the ticket number weight corresponding to the private key are generated by the registration device.
Optionally, the system further comprises an obtaining unit, configured to: the terminal equipment acquires the identification of the voter to be voted; a processing unit to: generating a third digital signature according to the identification of the voter, the random information and the first digital signature; a transmitting unit configured to: broadcasting the third digital signature and the voting information to each node in the blockchain network.
From the above, it can be seen that: in the embodiment of the invention, because the terminal device broadcasts the voting information to each node in the block chain network, and because the blocks in the block chain in each node in the block chain network are generated according to the time sequence, the sequence of the blocks in the block chain network is equivalent to the effect of the time stamp, and each block stores the index of the previous block, the voting information in the block chain can not be falsified, and the reliability of the voting result is enhanced.
Fig. 5 schematically illustrates a structural diagram of a blockchain network suitable for electronic voting according to an embodiment of the present invention.
Based on the same concept, the embodiment of the invention provides a block chain network, as shown in fig. 5, the block chain network 500 includes a receiving unit 501 and a processing unit 502. Wherein:
a receiving unit, configured to receive voting information broadcasted by a terminal device; the voting information comprises random information, a first digital signature and the identification of the voter to be voted; the processing unit is used for determining whether the random information is legal or not according to the public key corresponding to the first digital signature; determining the total vote corresponding to the identifier of the voter according to the number of the random information corresponding to the identifier of the voter and the vote weight corresponding to the public key corresponding to the first digital signature; the public key and the ticket number weight corresponding to the public key are generated by the registration device.
Optionally, the receiving unit receives a third digital signature sent by the terminal device; wherein the third digital signature is generated by the terminal device according to voting information; wherein the voting information comprises the random information, the first digital signature, and an identification of a voter; the processing unit is configured to: and determining whether the voting information is legal or not according to the public key corresponding to the third digital signature.
From the above, it can be seen that: in the embodiment of the invention, because the terminal device broadcasts the voting information to each node in the block chain network, and because the blocks in the block chain in each node in the block chain network are generated according to the time sequence, the sequence of the blocks in the block chain network is equivalent to the effect of the time stamp, and each block stores the index of the previous block, the voting information in the block chain can not be falsified, and the reliability of the voting result is enhanced.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit and scope of the application. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.

Claims (10)

1. An electronic voting method, comprising:
the terminal equipment generates random information for each voter;
the terminal equipment carries out blind transformation on the random information to obtain first information;
the terminal equipment sends the first information to a registration device;
the terminal equipment receives a second digital signature sent by the registration device; wherein the second digital signature is generated from the first information;
the terminal equipment de-blinding the second digital signature to obtain a first digital signature corresponding to the random information;
the terminal equipment broadcasts voting information to each node in the block chain network; the voting information comprises the random information, the first digital signature and the identification of the voted person, and the voting information is used for each node in the block chain network to determine the total vote corresponding to the identification of the voted person according to the number of the random information corresponding to the identification of the voted person and the vote weight corresponding to the public key corresponding to the first digital signature; the public key and the ticket number weight corresponding to the public key are generated by a registration device.
2. The method of claim 1, wherein before the terminal device receives the second digital signature sent by the registration apparatus, the method further comprises:
the terminal equipment sends the identity information of the voter to the registration device;
wherein the identity information of the voter is used to: enabling the registration device to determine and generate a private key corresponding to the second digital signature and a ticket number weight corresponding to the private key; the private key and the ticket number weight corresponding to the private key are generated by the registration device.
3. The method of claim 1, wherein prior to the terminal device broadcasting the voting information to each node in the blockchain network, further comprising:
the terminal equipment acquires the identification of the voter to be voted;
the terminal equipment generates a third digital signature according to the identification of the voter to be voted, the random information and the first digital signature;
the terminal device broadcasts the third digital signature and the voting information to each node in the blockchain network.
4. An electronic voting method, comprising:
each node in the block chain network receives voting information broadcasted by the terminal equipment; the voting information comprises random information, a first digital signature and the identification of the voter to be voted; the random information is generated by the terminal equipment for each voter, the first digital signature is obtained by blind transformation of the random information by the terminal equipment, the first information is sent to a registration device, and after a second digital signature generated by the registration device according to the first information is received, the second digital signature is de-blinded;
each node in the block chain network determines whether the random information is legal or not according to a public key corresponding to the first digital signature;
each node in the block chain network determines the total vote corresponding to the identifier of the voted person according to the number of the random information corresponding to the identifier of the voted person and the vote weight corresponding to the public key corresponding to the first digital signature; the public key and the ticket number weight corresponding to the public key are generated by a registration device.
5. The method of claim 4, wherein before each node in the blockchain network determines whether the random information is legal according to the public key corresponding to the first digital signature, the method further comprises:
each node in the block chain network receives a third digital signature sent by the terminal equipment; wherein the third digital signature is generated by the terminal device according to voting information; wherein the voting information comprises the random information, the first digital signature, and an identification of a voter;
and each node in the block chain network determines whether the voting information is legal or not according to the public key corresponding to the third digital signature.
6. A terminal device adapted for electronic voting, comprising:
the generating unit is used for generating random information for each voter;
the processing unit is used for carrying out blind transformation on the random information to obtain first information; de-blinding the second digital signature to obtain a first digital signature corresponding to the random information;
a sending unit, configured to broadcast voting information to each node in the blockchain network; the voting information comprises the random information, the first digital signature and the identification of the voter to be voted; sending the first information to a registration device; the voting information is used for each node in the block chain network to determine the total vote corresponding to the identifier of the voted person according to the number of random information corresponding to the identifier of the voted person and the vote weight corresponding to the public key corresponding to the first digital signature; the public key and the ticket number weight corresponding to the public key are generated by a registration device;
a receiving unit configured to:
receiving a second digital signature sent by the registration device; wherein the second digital signature is generated from the first information.
7. The terminal device of claim 6, wherein the sending unit is further configured to:
sending identity information of a voter to the registration device; wherein the identity information of the voter is used to: enabling the registration device to determine and generate a private key corresponding to the second digital signature and a ticket number weight corresponding to the private key; the private key and the ticket number weight corresponding to the private key are generated by the registration device.
8. The terminal device of claim 6, further comprising an obtaining unit configured to:
the terminal equipment acquires the identification of the voter to be voted;
the processing unit is configured to:
generating a third digital signature according to the identification of the voter, the random information and the first digital signature;
the sending unit is configured to:
broadcasting the third digital signature and the voting information to each node in the blockchain network.
9. A network of blockchains adapted for electronic voting, comprising:
a receiving unit, configured to receive voting information broadcasted by a terminal device; the voting information comprises random information, a first digital signature and the identification of the voter to be voted; the random information is generated by the terminal equipment for each voter, the first digital signature is obtained by blind transformation of the random information by the terminal equipment, the first information is sent to a registration device, and after a second digital signature generated by the registration device according to the first information is received, the second digital signature is de-blinded;
the processing unit is used for determining whether the random information is legal or not according to the public key corresponding to the first digital signature; determining the total number of votes corresponding to the identifier of the voted person according to the number of random information corresponding to the identifier of the voted person and the weight of the votes corresponding to the public key corresponding to the first digital signature; the public key and the ticket number weight corresponding to the public key are generated by a registration device.
10. The blockchain network of claim 9, wherein the receiving unit is further to:
receiving a third digital signature sent by the terminal equipment; wherein the third digital signature is generated by the terminal device according to voting information; wherein the voting information comprises the random information, the first digital signature, and an identification of a voter;
the processing unit is configured to:
and determining whether the voting information is legal or not according to the public key corresponding to the third digital signature.
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