WO2022095428A1

WO2022095428A1 - Anchor node falsification detection method and apparatus, and medium and device

Info

Publication number: WO2022095428A1
Application number: PCT/CN2021/097125
Authority: WO
Inventors: 薄辰龙; 李宁
Original assignee: 平安科技（深圳）有限公司
Priority date: 2020-11-03
Filing date: 2021-05-31
Publication date: 2022-05-12
Also published as: CN112307447A

Abstract

An anchor node falsification detection method and apparatus, and a medium and a device, which relate to the technical field of blockchains. The method comprises: dividing a blockchain network into N regional blocks Pi (S1), wherein i = 1, 2, …, N, N being an integer greater than 2; for nodes in each of the regional blocks Pi, selecting, by voting, an anchor node which represents all nodes in the regional block Pi (S2); when a transaction initiator initiates a transaction in the regional block Pi, the anchor node of the regional block Pi sending verification information to anchor nodes of the other regional blocks (S3); and the other regional blocks performing voting verification on the verification information of the transaction initiator, and the result of the voting verification determining whether the anchor node of the regional block Pi where the transaction initiator initiates a transaction is a trusted anchor node (S4). By means of the method, the credibility of a transaction initiator is guaranteed, the efficiency of communication between cross-region blocks is greatly improved, and the problem in the prior art of it being difficult to identify falsified data is solved.

Description

An anchor node fraud detection method, device, medium and equipment

technical field

The present application relates to the field of blockchain technology, and more particularly, the present application relates to a method, device, medium and device for false anchor node detection.

Background technique

In 2008, Satoshi Nakamoto proposed Bitcoin. With the rapid development in recent years, the blockchain as the core of its underlying technology has also entered people's attention. As the core of blockchain technology, the consensus mechanism has attracted great attention and widespread attention from government departments, financial institutions, technology companies and capital markets. In the research of relevant consensus algorithms, Proof of Work (PoW) has become the mainstream idea of P2P electronic currency since the advent of Bitcoin. It ensures the reliability of the entire network information through computing power competition, but there are relatively Serious waste of computing power. Therefore, some digital currency enthusiasts in the Bitcointalk forum proposed Proof of Stake (PoS) to greatly reduce resource consumption by introducing currency age. On this basis, the Larimer team proposed a share authorization in March 2014. The Delegate Proof of Stake (DPoS) algorithm further improves the accounting speed. However, the consensus speed of a single blockchain at this stage is still unable to effectively meet the actual social needs. Compared with the throughput of more than 10,000 transactions per second in traditional centralized settlement systems, blockchain still has a large performance gap.

In the prior art, the concept of consortium chain is proposed. Consortium chain is only for members of a specific group and limited third parties. It internally designates multiple pre-selected nodes as bookkeepers. The generation of each block is performed by all The preselected nodes decide jointly.

The inventor noticed that for the consortium chain, since each node on the consortium chain works independently, the transmission paths and verification methods are relatively complex, resulting in very poor timeliness of data transmission, which brings about the technical problem of difficult identification of forged data.

SUMMARY OF THE INVENTION

In order to solve the technical problem that the nodes on the consortium chain in the prior art work independently, the transmission paths and verification methods are complex, and the forged data is difficult to identify, the present application provides a method for detecting fake anchor nodes in the consortium chain fragmentation consensus system. include:

Divide the blockchain network into N regional blocks P _i , i=1, 2..., N, where N is an integer greater than 2;

The nodes in each of the geographical blocks P _i vote to select the anchor nodes _representing all the nodes of the geographical block Pi;

When a transaction _initiator initiates a transaction in the regional block _Pi , the anchor node of the regional block Pi sends verification information to the anchor nodes of other regional blocks;

Other regional blocks perform voting verification on the verification information of the transaction initiator, and the result of the voting verification determines whether the anchor node of the regional block _Pi where the transaction initiator initiates the transaction is a trusted anchor node.

In order to achieve the above technical purpose, the present application can also provide an anchor node fraud detection device in a consortium chain fragmentation consensus system, including:

The block module is used to divide the blockchain network into N regional blocks P _i , i=1, 2..., N, where N is an integer greater than 2;

An anchor node selection module, which is used for the nodes in each of the described area blocks P _i to select the anchor nodes representing all the nodes of this area block P _i by voting;

The sending module is used to send verification information from the anchor node of the regional block Pi to the anchor nodes of other regional blocks when a transaction _initiator initiates a transaction in the regional block Pi;

The verification module is used for other regional blocks to vote and verify the verification information of the transaction initiator, and the result of the voting verification determines whether the regional block _Pi where the transaction initiator initiates the transaction is a trusted anchor node.

In order to achieve the above technical purpose, the present application can also provide a computer storage medium on which computer program instructions are stored, wherein, when the program instructions are executed by the processor, the program instructions are used to implement false detection of anchor nodes in the consortium chain fragmentation consensus system. the corresponding steps of the method;

The method includes:

To achieve the above technical purpose, the present application also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, wherein the processor implements the computer program when executing the computer program. Follow the steps below:

Other regional blocks perform voting verification on the verification information of the transaction initiator, and the result of the voting verification determines whether the anchor node of the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node.

The beneficial effects of this application are:

The present application provides a method for detecting fraudulent anchor nodes in a sharding consensus system to ensure the credibility of transaction initiators. The efficiency of mutual communication between cross-domain blocks is greatly improved, and the technical problem that forged data is difficult to identify in the prior art is solved.

Description of drawings

FIG. 1 shows a schematic flowchart of Embodiment 1 of the present application;

FIG. 2 shows a schematic flowchart of Embodiment 2 of the present application;

3 shows a schematic structural diagram of Embodiment 3 of the present application;

FIG. 4 shows a schematic structural diagram of Embodiment 4 of the present application.

Detailed ways

Hereinafter, embodiments of the present application will be described with reference to the accompanying drawings. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the application. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present application.

Various schematic diagrams of structures according to embodiments of the present application are shown in the accompanying drawings. The figures are not to scale, some details have been exaggerated for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the figures, as well as their relative sizes and positional relationships are only exemplary, and in practice, there may be deviations due to manufacturing tolerances or technical limitations, and those skilled in the art should Regions/layers with different shapes, sizes, relative positions can be additionally designed as desired.

Blockchain is a distributed shared accounting technology. What it does is to enable all parties involved to establish a trust relationship at the technical level. The blockchain can be roughly divided into the underlying technology of the blockchain and the upper-layer application of the blockchain. The so-called application of blockchain refers to the application of transformation, optimization or innovation based on blockchain technology. The core meaning of blockchain technology is to establish data credit between participants.

Bitcoin is the first application of blockchain technology, but the application of blockchain technology goes far beyond the financial industry. The communication industry is also enthusiastic, especially in the field of telecom operators, and blockchain technology is becoming a new favorite. Blockchain technology can be understood as the role of a network infrastructure similar to the TCP/IP protocol, and will be one of the key infrastructure elements to support the new Internet format characterized by peer-to-peer openness in the future, which will affect many industries. The specific application form is just like the impact the Web has brought to various industries around the world.

In the field of communication, information in the traditional way is completed through point-to-point transmission, which allows the tracker to intercept the information by tracking the path of information transmission, which brings a security problem, which leads to the guarantee of information transmission. The urgent need for absolute safety of the path. The principles of blockchain technology may be just right to help solve this problem. The new application of block chain in the field of communication can completely change the channel of information transmission, and fundamentally solve the problem of path security of information transmission.

Example 1:

As shown in Figure 1:

This application provides an anchor node fraud detection method in a consortium chain fragmentation consensus system, including:

S1: Divide the blockchain network into N regional blocks Pi, _i =1, 2..., N, where N is an integer greater than 2.

Preferably, the blockchain network can be divided into N geographic blocks P _i according to geographic location areas, i=1, 2..., N, where N is an integer greater than 2;

The geographic location area may be:

Divide the global blockchain network into 4 geographic blocks according to geographic regions: Europe block, Asia block, America block and other geographic blocks.

S2: The nodes in each of the geographical blocks _Pi are voted to select anchor nodes representing all the nodes of the geographical block Pi;

specifically,

The voting announcement information broadcast by the voting initiator node in the blockchain network is received through the supervisory node, and the voting announcement information includes: voting qualification conditions, identification information of the supervisory node, information to be voted, voting deadline and voting rules.

The blockchain network includes the voting initiator node, the supervisory node, the accounting node and the node to be voted.

The initiator node of electronic voting can be any participating node in the blockchain network, that is to say, any participating node in the blockchain network can be used as the initiator node of a vote, and the initiator node can set the voting node to meet the requirements. eligibility conditions, and specific information to be voted on.

Specifically, the supervisory node may be a database storing complete user identity information, and the supervisory node may generate the identity authentication information of the voting node according to the qualifications of the voting node. Specifically, the supervisory node can be a notarized third-party node. For example, when an anchor node representing an Asian block is selected, the supervisory node can be a database of Asian transaction parties.

The node to be voted can be any one or more participating nodes in the blockchain network.

Specifically, the electronic voting initiator node broadcasts voting announcement information in the blockchain network, and the voting announcement information includes: voting qualification conditions, identification information of the supervisory node, information to be voted, voting deadline and voting rules. When the supervisory node receives the electronic voting announcement information, it extracts the voting qualification conditions from the electronic voting announcement information.

The supervisory node queries and obtains the blockchain public keys and/or blockchain identifiers of multiple anchor nodes eligible for voting according to the voting qualification conditions.

According to the voting qualification conditions, the supervisory node searches the database of the supervisory node for an anchor node that is eligible for voting, and further, obtains the blockchain public key and/or blockchain identification of the anchor node that is eligible for voting.

The supervisory node performs a private key signature on the blockchain public keys and/or blockchain identifiers of the plurality of voting nodes eligible for voting.

The supervisory node broadcasts the blockchain public keys and/or blockchain identifiers of the plurality of voting anchor nodes that are eligible for voting and signed by the private key in the blockchain network.

S3: When a transaction _initiator initiates a transaction in the regional block _Pi , the anchor node of the regional block Pi sends verification information to the anchor nodes of other regional blocks;

Specifically, when a transaction initiator initiates a transaction in the region block P _i , the anchor node of the region block P _i sends a message containing the transaction information and the first hash value of the transaction information after the hash operation to the anchor nodes of the other region blocks. verify message.

Preferably, when a transaction _initiator initiates a transaction in the area block Pi, the first hash value after _hashing the transaction information is encrypted with the private key of the area block Pi to obtain an encrypted signature, and the The signature and transaction information are used as the verification information, and the anchor node of the area block Pi _sends the verification information including the transaction information and the signature to the anchor nodes of other area blocks.

The beneficial effects of the above-mentioned preferred technical scheme are:

The first hash value is encrypted with a private key by the region block that initiates the transaction, which effectively prevents the first hash value from being artificially tampered with during the transmission process of the verification information, resulting in the deviation of the credibility verification of the anchor node.

S4: other regional blocks perform voting verification on the verification information of the transaction initiator, and the result of the voting verification determines whether the anchor node of the regional block _Pi where the transaction initiator initiates the transaction is a trusted anchor node.

Specifically, other regional blocks respectively perform a hash operation on the transaction information to obtain a second hash value;

Compare and verify whether the first hash value and the second hash value are consistent, and if they are consistent, the verification is passed, and the regional block _Pi where the transaction initiator initiates the transaction is a trusted anchor node.

Preferably, if the verification information is verification information including the transaction information and the signature of the area block _Pi , the signature needs to be decrypted before hash verification.

Other area blocks respectively use the public key of the area block P _i to decrypt the signature to obtain the first hash value;

The other region blocks respectively perform a hash operation on the transaction information to obtain a second hash value;

Compare and verify whether the first hash value and the second hash value are consistent, and if they are consistent, the verification is passed, and the anchor node of the regional block _Pi where the transaction initiator initiates the transaction is a trusted anchor node.

A hash value is a string of fixed-length binary values, which is calculated by a hash algorithm (Hash algorithm).

A hash algorithm can map a binary value of any length to a shorter fixed-length binary value, and this small binary value is called a hash value. A hash value is a unique and extremely compact numerical representation of a piece of data. If the data being hashed changes even one letter of the paragraph, subsequent hashes will yield different values.

It is computationally impossible to find two different inputs with the same hash value, so the hash value of the data can verify the integrity of the data; generally used for fast lookup and encryption algorithms.

A hash value is a value obtained by calculating a piece of data through a hash algorithm. This value has two properties: one-way and unique.

The one-way and unique hash value is used for verification, which is efficient and secure, and will not have any impact on the original transaction data.

Unidirectional

The hash value cannot be reversed to get the original data. For example, a number "1234" can be obtained by hashing the hash value A, but the original number "1234" can never be decrypted through the hash value A.

uniqueness

Only the hash value obtained by hashing the exact same data is the same, that is to say, the hash value and the original data are uniquely corresponding, and there is no such situation that the same hash value is obtained from two different data .

The strength of hash encryption is that no matter what the encrypted content is, as long as the content is consistent, the hash value is consistent. In this way, it is simple and efficient to compare whether the two pieces of information are consistent, without having to care about the details of the data.

The present application utilizes the one-way and unique characteristics of the hash value of the hash operation. If the result of the second hash value is the same as the first hash value, it indicates the transaction information before transmission and the received transaction information. It is the same, it is the original transaction information, and it is not considered to be tampered with, which ensures the security of the transaction.

The technical solution of the present application is explained in detail below in conjunction with a specific example:

If the transaction initiator wants to initiate a transaction to other regional blocks P2 _- _PN in _a node of the regional block P1, it needs to send transaction information to other regional blocks P2 _- _PN through the P1 anchor node of the regional block. _In order to ensure the transaction information It is safe and reliable and will not be tampered with by the anchor node of the regional block P ₁ , and needs to be verified before the actual transaction.

The verification process is: the anchor node _of the regional block P1 sends the verification information including the virtual transaction information and the signature of the virtual transaction information encrypted by the hash algorithm and encrypted by the private key of the anchor node;

The verification information is broadcast to the anchor nodes of other regional blocks P2 _- _PN . After receiving the verification information, the anchor nodes of other regional blocks P2 _- _PN _first use the public information of the anchor nodes of the regional block P1. The key decrypts the signature to obtain the _first hash value after the anchor node operation of the regional block P1, and the anchor nodes of other regional blocks P2 _- _PN perform hash operation on the virtual transaction information in the received verification information The second hash value is obtained. If the value of the first hash value is the same as the second hash value, it means that the anchor node _of the region block P1 is credible, and the transaction information has not been tampered with, and the transaction can be performed.

Embodiment 2:

The application can also make the following improvements on the technical solution of Embodiment 1:

The anchor node fraud detection method in the consortium chain sharding consensus system of this application also includes:

S5: If the anchor node of the region block P _i that initiates the transaction is an untrusted anchor node, the region block P _i re-votes to elect a new node as the anchor node representing the region block P _i .

The beneficial effects of the above technical solutions are:

If the anchor node of the current region block to be transacted is not credible, a new node will be re-voted as the anchor node representing the region block to ensure the reliability of the transaction.

Embodiment three:

As shown in Figure 3,

The present application can also provide an anchor node fraud detection device in a consortium chain fragmentation consensus system, including:

The block module 301 is used to divide the blockchain network into N regional blocks P _i , i=1, 2..., N, where N is an integer greater than 2;

Preferably, the blockchain network can be divided into N geographic blocks P _i according to geographic locations, i=1, 2..., N, where N is an integer greater than 2;

The geographic location area may be:

Anchor node selection module 302, for each node in the area block P _i to select the anchor node representing all the nodes of the area block P _i by voting;

The sending module 303 is used to send verification information to the anchor nodes of other regional blocks from the anchor node of the regional block Pi when a transaction _initiator initiates a transaction in the regional block Pi;

Specifically, when the sending module 303 initiates a transaction in the region block _{Pi, the anchor node of the region block P i} _sends the first message containing the transaction information and the hash operation of the transaction information to the anchor nodes of the other region blocks. A hash value of verification information.

Preferably, the sending module 3030 encrypts the first hash value after hashing the transaction information with the private key of the region block _{P i} _to obtain the encrypted The signature and the transaction information are used as the verification information, and the anchor node of the area block P _i sends the verification information including the transaction information and the signature to the anchor nodes of other area blocks.

The beneficial effects of the above-mentioned preferred technical scheme are:

The verification module 304 is used for other regional blocks to perform voting verification on the verification information of the transaction initiator, and the result of the voting verification determines whether the regional block _Pi where the transaction initiator initiates the transaction is a trusted anchor node.

Specifically, the verification module 304 performs a hash operation on the transaction information in other regions to obtain a second hash value;

Wherein, the block module 301 provided in this application is connected to the anchor node selection module 302 , the sending module 303 and the verification module 304 in sequence.

Embodiment 4:

The present application can also provide a computer storage medium on which computer program instructions are stored, wherein, when the program instructions are executed by a processor, the program instructions are used to implement the steps corresponding to the anchor node fraud detection method in the alliance chain sharding consensus system;

The method includes:

Further, when a transaction initiator initiates a transaction in the area block Pi, the anchor node of the area block Pi sends verification information to the anchor nodes of other area blocks, specifically including:

When a transaction initiator initiates a transaction in the regional block Pi, the anchor node of the regional block Pi sends the verification information including the transaction information and the first hash value of the transaction information after the hash operation to the anchor nodes of the other regional blocks.

Further, encrypting the first hash value after the hash operation with the private key of the area block Pi to obtain an encrypted signature, and the signature and transaction information are used as the verification information.

Further, the other regional blocks perform voting verification on the verification information of the transaction initiator, and the result of the voting verification determines whether the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node The process is specifically as follows:

Compare and verify whether the first hash value and the second hash value are consistent, and if they are consistent, the verification is passed, and the anchor node of the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node.

Other area blocks respectively use the public key of the area block Pi to decrypt the signature to obtain the first hash value;

Further, the division of the blockchain network into N regional blocks Pi is specifically:

The nodes in the entire blockchain network are divided into N regional blocks Pi, i=1, 2, ..., N according to the geographical location of the nodes, where N is an integer greater than 2.

The computer storage medium of the present application can be implemented with semiconductor memory or magnetic core memory.

Semiconductor memory, the semiconductor memory elements mainly used in computers are mainly Mos and bipolar. Mos components have high integration, simple process but slow speed. Bipolar components have complex process, high power consumption, low integration but fast speed. After the advent of NMos and CMos, Mos memory began to occupy a dominant position in semiconductor memory. NMos is fast, such as Intel's 1K-bit SRAM access time of 45ns. The CMos consumes less power, and the 4K-bit CMos static memory access time is 300ns. The above semiconductor memories are all random access memories (RAM), that is, new contents can be read and written randomly during the working process. The semiconductor read-only memory (ROM) can be randomly read but not written in the working process, it is used to store the solidified program and data. ROM is divided into two types of non-rewritable fuse-type read-only memory ─ ─ PROM and rewritable read-only memory EPROM.

Magnetic core memory has the characteristics of low cost and high reliability, and has more than 20 years of practical experience. Before the mid-1970s, magnetic core memory was widely used as main memory. Its storage capacity can reach more than 10 bits, and the fastest access time is 300ns. The international typical magnetic core memory capacity is 4MS ~ 8MB, and the access cycle is 1.0 ~ 1.5μs. After the rapid development of semiconductor storage to replace the magnetic core memory as the main memory, the magnetic core memory can still be used as a large-capacity expansion memory.

Embodiment 5:

The present application also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and running on the processor, wherein the processor implements the following steps when executing the computer program:

FIG. 4 is a schematic diagram of the internal structure of an electronic device in one embodiment. As shown in FIG. 4 , the electronic device includes a processor, a storage medium, a memory, and a network interface connected through a system bus. Wherein, the storage medium of the computer device stores an operating system, a database and computer-readable instructions, the database can store a control information sequence, and when the computer-readable instructions are executed by the processor, the processor can be made to realize a kind of alliance chain distribution. Anchor node forgery detection method in slice consensus system. The processor of the electrical equipment is used to provide computing and control capabilities and support the operation of the entire computer equipment. Computer-readable instructions may be stored in the memory of the computer device, and when the computer-readable instructions are executed by the processor, the processor may execute a method for detecting fake anchor nodes in a consortium chain sharding consensus system. The network interface of the computer equipment is used for communication with the terminal connection. Those skilled in the art can understand that the structure shown in FIG. 4 is only a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer equipment to which the solution of the present application is applied. Include more or fewer components than shown in the figures, or combine certain components, or have a different arrangement of components.

The electronic devices include, but are not limited to, smart phones, computers, tablet computers, wearable smart devices, artificial intelligence devices, power banks, and the like.

In some embodiments, the processor may be composed of integrated circuits, such as a single packaged integrated circuit, or a plurality of integrated circuits packaged with the same function or different functions, including one or more central Processor (Central Processing unit, CPU), microprocessor, digital processing chip, graphics processor and combination of various control chips, etc. The processor is the control core (Control Unit) of the electronic device, and uses various interfaces and lines to connect various components of the entire electronic device, by running or executing programs or modules stored in the memory (for example, executing a remote control unit). data reading and writing programs, etc.), and call data stored in the memory to perform various functions of the electronic device and process data.

The bus may be a peripheral component interconnect (PCI for short) bus or an extended industry standard architecture (Extended industry standard architecture, EISA for short) bus or the like. The bus can be divided into address bus, data bus, control bus and so on. The bus is configured to enable connection communication between the memory and at least one processor or the like.

FIG. 4 only shows an electronic device with components. Those skilled in the art can understand that the structure shown in FIG. 4 does not constitute a limitation on the electronic device, and may include fewer or more components than those shown in the drawings. , or a combination of certain components, or a different arrangement of components.

For example, although not shown, the electronic device may also include a power source (such as a battery) for powering the various components, preferably, the power source may be logically connected to the at least one processor through a power management device, so as to be implemented by the power management device Charge management, discharge management, and power management functions. The power source may also include one or more DC or AC power sources, recharging devices, power failure detection circuits, power converters or inverters, power status indicators, and any other components. The electronic device may further include various sensors, Bluetooth modules, Wi-Fi modules, etc., which will not be repeated here.

Further, the electronic device may also include a network interface, optionally, the network interface may include a wired interface and/or a wireless interface (such as a WI-FI interface, a Bluetooth interface, etc.) Establish a communication connection between other electronic devices.

Optionally, the electronic device may further include a user interface, and the user interface may be a display (Display), an input unit (such as a keyboard (Keyboard)), optionally, the user interface may also be a standard wired interface or a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode, organic light-emitting diode) touch device, and the like. The display may also be appropriately called a display screen or a display unit, which is used for displaying information processed in the electronic device and for displaying a visual user interface.

Further, the computer usable storage medium may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program required for at least one function, and the like; using the created data, etc.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the modules is only a logical function division, and there may be other division manners in actual implementation.

The modules described as separate components may or may not be physically separated, and components shown as modules may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional module in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware, or can be implemented in the form of hardware plus software function modules.

The embodiments of the present application are described above. However, these examples are for illustrative purposes only, and are not intended to limit the scope of the present application. The scope of the application is defined by the appended claims and their equivalents. Without departing from the scope of the present application, those skilled in the art can make various substitutions and modifications, and these substitutions and modifications should all fall within the scope of the present application.

Claims

An anchor node fraud detection method in a consortium chain fragmentation consensus system, including:

Divide the blockchain network into N regional blocks P i , i=1, 2..., N, where N is an integer greater than 2;

The nodes in each of the geographical blocks P i vote to select the anchor nodes representing all the nodes of the geographical block Pi;

When a transaction initiator initiates a transaction in the regional block Pi , the anchor node of the regional block Pi sends verification information to the anchor nodes of other regional blocks;

Other regional blocks perform voting verification on the verification information of the transaction initiator, and the result of the voting verification determines whether the anchor node of the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node.
The method according to claim 1, wherein when a transaction initiator initiates a transaction in the area block Pi, the anchor node of the area block Pi sends verification information to the anchor nodes of other area blocks, specifically including:

When a transaction initiator initiates a transaction in the regional block Pi, the anchor node of the regional block Pi sends the verification information including the transaction information and the first hash value of the transaction information after the hash operation to the anchor nodes of the other regional blocks.
The method according to claim 2, wherein the first hash value after the hash operation is encrypted with the private key of the area block Pi to obtain an encrypted signature, and the signature and transaction information are used as the verification information .
The method according to claim 2, wherein the other region blocks perform voting verification on the verification information of the transaction initiator, and the result of the voting verification determines whether the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node. The process is as follows:

The other region blocks respectively perform a hash operation on the transaction information to obtain a second hash value;

Compare and verify whether the first hash value and the second hash value are consistent, and if they are consistent, the verification is passed, and the anchor node of the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node.
The method according to claim 3, wherein the verification information of the transaction initiator is verified by voting on the other regional blocks, and the result of the voting verification determines whether the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node. The process is as follows:

Other area blocks respectively use the public key of the area block Pi to decrypt the signature to obtain the first hash value;

The other region blocks respectively perform a hash operation on the transaction information to obtain a second hash value;

Compare and verify whether the first hash value and the second hash value are consistent, and if they are consistent, the verification is passed, and the anchor node of the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node.
The method according to claim 1, wherein the dividing the blockchain network into N regional blocks Pi is specifically:

The nodes in the entire blockchain network are divided into N regional blocks Pi, i=1, 2, ..., N according to the geographical location of the nodes, where N is an integer greater than 2.
The method of claim 1, further comprising:

If the anchor node of the region block Pi that initiates the transaction is an untrusted anchor node, the region block Pi will re-vote a new node as the anchor node representing the region block Pi.
An electronic device, comprising a memory, a processor, and a computer program stored on the memory and running on the processor, wherein the processor implements the following steps when executing the computer program:

Divide the blockchain network into N regional blocks P i , i=1, 2..., N, where N is an integer greater than 2;

The nodes in each of the geographical blocks P i vote to select the anchor nodes representing all the nodes of the geographical block Pi;

When a transaction initiator initiates a transaction in the regional block Pi , the anchor node of the regional block Pi sends verification information to the anchor nodes of other regional blocks;

Other regional blocks perform voting verification on the verification information of the transaction initiator, and the result of the voting verification determines whether the anchor node of the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node.
The device according to claim 8, wherein when a transaction initiator initiates a transaction in the area block Pi, the anchor node of the area block Pi sends verification information to the anchor nodes of other area blocks, specifically including:

When a transaction initiator initiates a transaction in the regional block Pi, the anchor node of the regional block Pi sends the verification information including the transaction information and the first hash value of the transaction information after the hash operation to the anchor nodes of the other regional blocks.
The device according to claim 9, wherein the encrypted signature is obtained by encrypting the first hash value after the hash operation with the private key of the area block Pi, and the signature and transaction information are used as the verification information .
The device according to claim 9, wherein the other region blocks perform voting verification on the verification information of the transaction initiator, and the result of the voting verification determines whether the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node. The process is as follows:

The other region blocks respectively perform a hash operation on the transaction information to obtain a second hash value;

Compare and verify whether the first hash value and the second hash value are consistent, and if they are consistent, the verification is passed, and the anchor node of the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node.
The device according to claim 9, wherein the other region blocks perform voting verification on the verification information of the transaction initiator, and the result of the voting verification determines whether the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node. The process is as follows:

Other area blocks respectively use the public key of the area block Pi to decrypt the signature to obtain the first hash value;

The other region blocks respectively perform a hash operation on the transaction information to obtain a second hash value;

Compare and verify whether the first hash value and the second hash value are consistent, and if they are consistent, the verification is passed, and the anchor node of the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node.
The device according to claim 8, wherein the dividing the blockchain network into N regional blocks Pi is specifically:

The nodes in the entire blockchain network are divided into N regional blocks Pi, i=1, 2, ..., N according to the geographical location of the nodes, where N is an integer greater than 2.
A computer storage medium on which computer program instructions are stored, wherein when the program instructions are executed by a processor, the program instructions are used to implement the steps corresponding to the anchor node fraud detection method in the alliance chain fragmentation consensus system;

The method includes:

Divide the blockchain network into N regional blocks P i , i=1, 2..., N, where N is an integer greater than 2;

The nodes in each of the geographical blocks P i vote to select the anchor nodes representing all the nodes of the geographical block Pi;

When a transaction initiator initiates a transaction in the regional block Pi , the anchor node of the regional block Pi sends verification information to the anchor nodes of other regional blocks;

Other regional blocks perform voting verification on the verification information of the transaction initiator, and the result of the voting verification determines whether the anchor node of the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node.
The medium according to claim 14, wherein when a transaction initiator initiates a transaction in the area block Pi, the anchor node of the area block Pi sends verification information to the anchor nodes of other area blocks, specifically including:

When a transaction initiator initiates a transaction in the regional block Pi, the anchor node of the regional block Pi sends the verification information including the transaction information and the first hash value of the transaction information after the hash operation to the anchor nodes of the other regional blocks.
The medium according to claim 15, wherein the encrypted signature is obtained by encrypting the first hash value after the hash operation with the private key of the area block Pi, and the signature and transaction information are used as the verification information .
The medium according to claim 15, wherein the other region blocks perform voting verification on the verification information of the transaction initiator, and the result of the voting verification determines whether the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node. The process is as follows:

The other region blocks respectively perform a hash operation on the transaction information to obtain a second hash value;

Compare and verify whether the first hash value and the second hash value are consistent, and if they are consistent, the verification is passed, and the anchor node of the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node.
The medium according to claim 15, wherein the other region blocks perform voting verification on the verification information of the transaction initiator, and the result of the voting verification determines whether the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node. The process is as follows:

Other area blocks respectively use the public key of the area block Pi to decrypt the signature to obtain the first hash value;

The other region blocks respectively perform a hash operation on the transaction information to obtain a second hash value;

Compare and verify whether the first hash value and the second hash value are consistent, and if they are consistent, the verification is passed, and the anchor node of the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node.
The medium according to claim 14, wherein the dividing the blockchain network into N regional blocks Pi is specifically:

The nodes in the entire blockchain network are divided into N regional blocks Pi, i=1, 2, ..., N according to the geographical location of the nodes, where N is an integer greater than 2.
An anchor node fraud detection device in a consortium chain fragmentation consensus system, including:

The block module is used to divide the blockchain network into N regional blocks Pi, i=1, 2..., N, where N is an integer greater than 2;

An anchor node selection module, which is used for the nodes in each of the area blocks Pi to select the anchor nodes representing all the nodes of the area block Pi by voting;

The sending module is used to send verification information from the anchor node of the regional block Pi to the anchor nodes of other regional blocks when a transaction initiator initiates a transaction in the regional block Pi;

The verification module is used for other regional blocks to perform voting verification on the verification information of the transaction initiator, and the result of the voting verification determines whether the regional block Pi where the transaction initiator initiates the transaction is a trusted anchor node.