WO2018126837A1

WO2018126837A1 - Blockchain-based data processing method, device and system

Info

Publication number: WO2018126837A1
Application number: PCT/CN2017/115001
Authority: WO
Inventors: 常俊仁; 张臣雄; 冯淑兰; 张亮亮
Original assignee: 华为技术有限公司
Priority date: 2017-01-03
Filing date: 2017-12-07
Publication date: 2018-07-12
Also published as: CN108270836A; CN108270836B

Abstract

Provided are a blockchain-based data processing method, device and system, the method comprising: a first device determines a block to be deleted in a blockchain network, the first device being a device in the blockchain network; the first device executes a deletion related operation, so as to delete the block to be deleted. The first device in the blockchain network executes the deletion related operation after determining the block to be deleted in the blockchain network, thereby deleting the block to be deleted. The present invention reduces the load in the blockchain network and the bandwidth required for blockchain transmission.

Description

Data processing method, device and system based on blockchain

This application claims the priority of the Chinese patent application filed on January 3, 2017, the Chinese Patent Office, the application number is 201710002175.X, and the application name is "block-based data processing method, equipment and system". This is incorporated herein by reference.

Technical field

The present application relates to the field of communications, and in particular, to a blockchain-based data processing method, apparatus, and system.

Background technique

The blockchain network is a network that implements information storage and transmission based on blockchain technology. With the further expansion of the blockchain application industry, the data generated by the devices will explode. Since the current blockchain network maintains the information of the entire book, the explosive growth of data will cause the blockchain network to have a large load, and the blockchain transmission in the blockchain network will consume huge bandwidth.

Summary of the invention

The present application provides a blockchain-based data processing method, device and system, which can reduce the bandwidth required for the transmission of the blockchain network and the transmission of the blockchain.

In a first aspect, a data processing method based on a blockchain is provided, including: determining, by a first device, a to-be-deleted block in a blockchain network, where the first device is a device in the blockchain network; The first device performs a delete related operation to delete the to-be-deleted block.

According to the blockchain-based data processing method of the embodiment of the present application, after the first device in the blockchain network determines the to-be-deleted block in the blockchain network, the deletion-related operation is performed to implement deletion of the to-be-deleted block. Thereby, it is possible to reduce the bandwidth required for the load in the blockchain network and the transmission of the blockchain.

Optionally, the first device may determine the to-be-deleted block in the blockchain network before generating the block. Or the first device may determine the to-be-deleted block in the blockchain network before broadcasting the newly generated blockchain.

With reference to the first aspect, in an implementation manner of the first aspect, the determining, by the first device, the to-be-deleted block in the blockchain network includes: determining, by the first device, a region in the blockchain network The storage duration or elapsed time of the block; the first device determines the to-be-deleted block according to the storage duration or the elapsed time.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the determining, by the first device, the to-be-deleted block according to the storage duration, the first device determining the current a time interval between a time instant and a generation time of the i-th first block in the consecutive K first blocks is greater than or equal to a storage duration of the i-th first block, where the i-th block The storage duration is used to indicate that the data included in the i-th first block or the i-th first block needs to be stored in the blockchain network, and K is greater than or equal to 1. An integer, i=1, . . . K; the first device determines the K first blocks as blocks to be deleted.

Optionally, each block in the blockchain network carries a storage duration of the block.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the determining, by the first device, the to-be-deleted block according to the elapsed time, The time is the elapsed time of the i-th first block in the consecutive K first blocks, or the elapsed time of the i-th first block in the K first blocks later than the current time, the first The elapsed time of the i first blocks is used to indicate that the data included in the first block or the first block needs to be deleted in the blockchain network, and K is greater than or equal to 1. A positive integer, i=1, . . . K; the first device determines the K first blocks as blocks to be deleted.

Optionally, each block in the blockchain network carries the deletion time of the block.

It can be understood that the device in the blockchain network can delete the to-be-deleted block at a specific time indicated by the deletion time, or delete the to-be-deleted block after the specific time.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the performing, by the first device, the deleting the related operation, includes: deleting, by the first device, the K first blocks; or The first device sets an initial value of the number of deletion authentication times of the K first blocks, and sends the first block information and the deletion of the K first blocks to devices in the blockchain network. The number of times of authentication, the first block information is used to indicate the K first blocks, so that the device in the blockchain network determines that the number of deletion authentications of the K first blocks is the first When the preset value is used, the K first blocks are deleted.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the first device determines, at the current time, a generation time of the i th first block in the consecutive K first blocks Before the time interval is greater than or equal to the storage duration of the ith first block, the method further includes: determining, by the first device, that the generated time and the current time exist in the K first blocks The first block whose time interval is smaller than the storage duration of the block; the first device deletes the data included in the first block where the time interval between the generation time and the current time is less than the storage duration of the block.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the determining, by the first device, that the current time is an elapsed time of the i th first block in the consecutive K first blocks Or the current time is later than an elapsed time of the i th first block in the K first blocks, the method further comprising: the first device determining that the K first blocks are present The elapsed time is earlier than the first block of the current time; the first device deletes the data included in the first block whose elapsed time is earlier than the current time.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the determining, by the first device, the to-be-deleted block in the blockchain network includes: the first device determining the blockchain Carrying the first block information and deleting the number of authentication times, the first block information is used to indicate consecutive K first blocks, and the number of deletion authentications is used to indicate that the K first blocks are in the area The number of deletion authentications in the blockchain network, K is a positive integer greater than or equal to 1; the first device determines the K first blocks as blocks to be deleted.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the value of the deletion authentication number is a first preset value;

The performing, by the first device, the deletion related operation includes: deleting, by the first device, the K first blocks.

In combination with the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the value of the deletion authentication number is smaller than a first preset value;

The first device performs the deletion related operation, and the first device sends the first block to the device in the blockchain network after adding the value of the deletion authentication number to one. And deleting the number of authentications, so that the device in the blockchain network determines that the number of deletion authentications of the K first blocks is the first When the preset value is used, the K first blocks are deleted.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, after the first device deletes the K first blocks, the method further includes: determining, by the first device The time interval between the current time and the generation time of the jth second block in the consecutive L second blocks is greater than or equal to the storage duration of the jth second block, and the L second blocks are generated a block that is later than the K first blocks and adjacent to the L first blocks, L is a positive integer greater than or equal to 1, j=1, . . . L;

The first device deletes the L second blocks; or

The first device sets an initial value of the number of deletion authentication times of the L second blocks, and sends the second block information and the deletion of the L second blocks to the devices in the blockchain network. a number of times of authentication, the second block information is used to indicate the L second blocks, so that the device in the blockchain network confirms that the number of deletion authentications of the L second blocks is the When the first preset value is used, the L second blocks are deleted.

Alternatively, K and L are fixed values that are configured in advance, or K and L are dynamically configured values.

In conjunction with the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the method further includes: the first device generates a third block, and the third block carries the third The storage duration of the block, the storage duration of the third block is used to indicate the length of time that the data included in the third block or the third block needs to be stored in the blockchain network.

Because the storage duration of the third block is carried in the third block, the device in the blockchain network can quickly determine whether the third block is the to-be-deleted block according to the storage duration in the third block. Thereby, the implementation of the devices in the blockchain network can be realized.

In conjunction with the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the block header of the third block includes a storage duration of the third block.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the third block includes data sent by the second device;

The method further includes: the first device receiving data sent by the second device and a first storage duration of the data, where the second device is a device in the blockchain network, where the first storage duration is used to indicate a length of time that the data determined by the second device needs to be stored in the blockchain network; The first storage duration determines the storage duration of the third block.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the first storage duration is determined by the second device by negotiating with a third device, where the third device is The device in the blockchain network.

In this embodiment of the present application, the first storage duration may be determined by the second device according to the pre-registration mode.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the first storage duration is determined by the second device according to a second storage duration, and the second storage duration is The data determined by the four devices is required to be stored in the blockchain network, and the fourth device is a device outside the blockchain network.

It can be understood that the fourth device is a device outside the blockchain network, and the second device sends the data of the fourth device to the blockchain network as a proxy device of the fourth device. Thus, the fourth device does not need to participate in the blockchain network, reducing the performance requirements for the fourth device.

In conjunction with the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the second storage duration is determined by the fourth device by negotiating with a fifth device, where the fifth device is Outside the blockchain network device of.

In conjunction with the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the method further includes: determining, by the first device, a blockchain to which the third block belongs; The third block is added to the blockchain.

In the blockchain network of the embodiment of the present application, there are multiple different types of blockchains, and devices in the blockchain network maintain a plurality of different types of blockchains. It can further reduce the storage requirements of the blockchain network.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the determining, by the first device, the blockchain to which the third block belongs, The storage duration of the three blocks and the preset correspondence relationship determine the blockchain to which the third block belongs, and the preset correspondence relationship is the correspondence between the storage duration of the block and the blockchain.

In conjunction with the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the blockchain carries an identifier of the blockchain.

In conjunction with the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the method further includes: the first device generates a fourth block; the block header of the fourth block includes a The third block information and the deletion time information, wherein the third block information is used to indicate the deleted block, the deletion time information is used to indicate the deletion time of the deleted block, or the deletion time information is used. Indicates the deletion time of the data included in the deleted block.

In the embodiment of the present application, the block generated by the device in the blockchain network includes the block information and the deletion time information, which can ensure that the device in the blockchain network can easily learn the deleted block and has been deleted. The time at which blocks or the data in these blocks are deleted.

In another implementation manner of the first aspect, the method further includes: the first device to a storage device in the blockchain network or the blockchain network The storage device other than the one transmits the deleted block or the data included in the deleted block.

In the embodiment of the present application, the device in the blockchain network sends the deleted block or the data included in the deleted block to the storage device, so that the data in the block or the blocks can be in the storage device. Save for a while. Thereby, it is possible to facilitate data search and recovery by devices in the blockchain network.

In another implementation manner of the first aspect, the method further includes: the first device to a storage device in the blockchain network or the blockchain network The storage device other than the third storage duration is the storage device in the blockchain network in which the deleted data or the included data in the deleted block needs to be stored. Or the length of time stored in a storage device outside the blockchain network.

A second aspect provides a blockchain-based data processing method, including: acquiring, by a second device, the second device is a device in a blockchain network; and the second device determining the data a storage duration, the first storage duration of the data is used to indicate a length of time that the data determined by the second device needs to be stored in the blockchain network; and the second device is to the blockchain The device in the network sends the data and the first storage duration, the first storage duration is used to determine a storage duration of a third block that includes the data, and a storage duration of the third block is used to indicate The length of time in which the data included in the third block or the third block is stored in the blockchain network.

It can be understood that the third block is generated by the device that obtains the authentication right in the blockchain network, and the device that obtains the authentication right here may be the second device.

According to the blockchain-based data processing method of the embodiment of the present application, the second device in the blockchain network determines the acquisition After the storage time of the obtained data is long, the acquired data and the storage duration of the determined data are sent to the devices in the blockchain network, so that the devices in the blockchain network can determine the inclusion time according to the storage duration determined by the second device. The storage duration of the block of data. Therefore, the device in the blockchain network can perform the delete related operation when the block is to be deleted according to the storage duration of the block containing the data, and delete the block to be deleted. Thereby, it is possible to reduce the bandwidth required for the load in the blockchain network and the transmission of the blockchain.

With reference to the second aspect, in an implementation manner of the second aspect, the determining, by the second device, the first storage duration of the data includes: the second device negotiates with the third device, and determines the first For the storage duration, the third device is a device in the blockchain network.

With reference to the second aspect and the foregoing implementation manner, in another implementation manner of the second aspect, the acquiring, by the second device, the data includes: the second device receiving the data sent by the fourth device, and the second storage duration The second storage duration is a duration that the data determined by the fourth device needs to be stored in the blockchain network, and the fourth device is a device outside the blockchain network;

The determining, by the second device, the first storage duration of the data, includes: determining, by the second device, the first storage duration according to the second storage duration.

With reference to the second aspect and the foregoing implementation manner, in another implementation manner of the second aspect, the second storage duration is determined by the fourth device by negotiating with a fifth device, where the fifth device is A device outside the blockchain network.

In a third aspect, an apparatus is provided for performing the method of any of the above first aspect or any of the possible implementations of the first aspect. In particular, the device comprises a functional module for performing the method of the first aspect or any of the possible implementations of the first aspect described above

In a fourth aspect, an apparatus is provided for performing the method of any of the above-described second aspect or any of the possible implementations of the second aspect. In particular, the apparatus comprises functional modules for performing the method of any of the possible implementations of the second aspect or the second aspect described above.

In a fifth aspect, an apparatus is provided comprising a processor, a memory, and a transceiver. The processor, the memory, and the transceiver communicate with each other through an internal connection path, transmitting control and/or data signals, such that the device performs the first aspect or any of the possible implementations of the first aspect Methods.

In a sixth aspect, an apparatus is provided comprising a processor, a memory, and a transceiver. The processor, the memory, and the transceiver communicate with each other through an internal connection path, transmitting control and/or data signals, such that the device performs any of the second or second aspects of the foregoing possible implementations. Methods.

According to a seventh aspect, there is provided a system comprising the apparatus of the third aspect and the apparatus of the fourth aspect, or the apparatus of the fifth aspect and the apparatus of the sixth aspect.

According to an eighth aspect, a computer readable medium providing a computer readable medium for storing a computer program, the computer program comprising any of the possible implementations of the first aspect or the first aspect described above The instruction in .

A ninth aspect, a computer readable medium providing a computer readable medium for storing a computer program, the computer program comprising any possible implementation for performing the second aspect or the second aspect described above The instruction in .

DRAWINGS

1 is a schematic flowchart of a blockchain-based data processing method according to an embodiment of the present application;

2 is a schematic diagram of a blockchain in accordance with an embodiment of the present application;

3 is a schematic diagram of a blockchain according to another embodiment of the present application;

4 is a schematic flowchart of a blockchain-based data processing method according to another embodiment of the present application;

FIG. 5 is a schematic flowchart of a blockchain-based data processing method according to still another embodiment of the present application; FIG.

FIG. 6 is a schematic block diagram of an apparatus according to an embodiment of the present application; FIG.

FIG. 7 is a schematic block diagram of an apparatus according to another embodiment of the present application; FIG.

FIG. 8 is a schematic block diagram of an apparatus according to still another embodiment of the present application; FIG.

9 is a schematic block diagram of an apparatus in accordance with still another embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

In the embodiment of the present application, the device in the blockchain network may be a private device, an operator network device (for example, a base station device), or a station deployed by a certain industry organization, a group, and an individual.

In the embodiment of the present application, the Internet of Things device may include, but is not limited to, a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), a mobile phone (Mobile Telephone), a user equipment (User Equipment, UE), a mobile phone (handset). And a portable device, a vehicle, etc., for example, the terminal device may be a mobile phone (or "cellular" phone), a computer having a wireless communication function, etc., and the terminal device may also be portable, pocket-sized , handheld, computer built-in or in-vehicle mobile devices.

In order to facilitate the understanding of the present application, before describing the method of the present application, firstly, the blockchain network, several elements in the blockchain network, and the working methods of the devices in the blockchain network are first introduced.

It should be noted that, in the embodiment of the present application, the data generated by the device includes data related to the device and its peer device and common data. When describing the elements in the blockchain network and the working methods of the devices in the blockchain network, taking the data related to the device and its peer device as an example, the data related to the device and its peer device is used as a transaction. The data is described as an example, but this does not limit the scope of the embodiments of the present application.

There is no centralized hardware or management mechanism in the blockchain network. The rights and obligations between any devices are equal, and the damage or loss of any device does not affect the operation of the entire blockchain network. Therefore, the block The chain network has the characteristics of decentralization. The data exchange between each device in the blockchain network does not need to trust each other. The operation rules of the entire blockchain network are open and transparent, and all data content is public, so the rule scope of the blockchain network And the time range, the device can not and can not deceive other devices, therefore, the blockchain network has the feature of trust. The total data block of the blockchain network is maintained by all maintenance-capable devices in the entire system, and any of these devices with maintenance functions can participate. Therefore, the blockchain network has the characteristics of collective maintenance. The blockchain network allows each participating device to obtain a copy of the complete database in the form of a sub-database. Unless you can control more than 51% of the devices in the entire network at the same time, the modification of the database on a single device is invalid, and it cannot affect the data content on other devices. Therefore, the blockchain network has a reliable database.

A block is a containerized data structure of data that is contained in a blockchain. It consists of a block header containing metadata and a long list of transactions that immediately follow the body of the block. The block specifically includes: a block size field, usually 4 bytes; a block header field, usually 80 bytes; and a transaction counter field, generally 1-9 bytes. Record the number of transactions; the transaction field, usually variable length, records transaction details.

The block header consists of three sets of metadata, first a set of data that references the hash value of the parent block, which is used to connect the block to the previous block in the blockchain. The second set of metadata includes difficulty, timestamp, and number used once (Nonce). The third set of metadata is the Merkle number (a data structure used to effectively summarize all transactions in the block). The block header specifically includes the following fields: the version field, usually 4 bytes; the parent block hash value field, usually 32 bytes, used to reference the hash value of the parent block in the blockchain; the Merkle root field, The hash value of the Merkle root of the transaction in the block; the timestamp field, usually 4 fields, is used to identify the approximate time generated by the block, accurate to the second; the Nonce field is used for the workload proof algorithm. counter.

Each block can reference the previous block through the "parent block hash value field" of its block header. That is, each block header contains the hash value of its parent block. And each block has only one parent block, but there can be multiple sub-blocks temporarily. The case where multiple sub-blocks appear in one block is called "block chain fork". A blockchain fork indicates a temporary state, and eventually only one sub-block becomes part of the blockchain.

A blockchain is a data structure in which blocks are sequentially linked from the back to the front, and each block points to the previous block. It can be stored as a file containing non-relative relationship records or stored in a simple database. You can think of a blockchain as a stack, with a height indicating the distance between the block and the first block, and a top or top indicating the most recent block. Encrypting each block header (for example, Secure Hash Algorithm (SHA)) generates a hash value. The corresponding block in the blockchain can be identified by this hash value.

For the entire blockchain network, the goal is to have all devices agree on a piece of information and update it to the total shared ledger. To this end, a consensus mechanism is introduced in the blockchain network. Two typical algorithms in the consensus mechanism are workload proof and equity proof. among them:

Proof Of Work (PoW) essentially adds cost to information transfer, reduces the rate of information transmission, and adds a random element to ensure that only one device can have the right to broadcast information during a time period. This random element is for the device to calculate a random hash value. Specifically, the block device calculates a string of 64-bit random numbers and letters according to the obtained input data, but only the device that obtains the hash value satisfying the hash value can be accepted as the workload by the blockchain network. prove. And the hash algorithm of the workload proof also realizes the wear of historical information by using the information in each new block as the input value of the next hash algorithm, forming a traceable chain (blockchain). .

Proof of interest, the purpose is to achieve blockchain protection by those with financial interests, this method is to achieve the proof of equity through the number of coins destroyed in each transaction (Coindays). The existing proof of equity system, such as Peercoin, is based on evidence blocks in which the target that the miner must achieve is inversely related to the number of days of destruction. People with Peercoin must choose a miner called a proof of equity and contribute a portion of their currency over a period of time to protect the blockchain network.

The blockchain-based data processing method according to an embodiment of the present application will be described in detail below on the basis of the above description. As illustrated in Figure 1, method 100 includes:

S101. The first device determines a to-be-deleted block in the blockchain network, where the first device is a device in the blockchain network.

S102. The first device performs a delete related operation to delete a to-be-deleted block.

Optionally, in S101, the first device may determine the to-be-deleted block in the blockchain network according to the storage duration of the block or the elapsed time of the block. The storage duration of the block is used to indicate the length of time in the block or block that the data needs to be stored in the blockchain network. The elapsed time of the block is used to indicate that the data included in the block or block needs to be in the blockchain. In the network At the time of deletion, the device in the blockchain network may delete the data in the block or the block at the specific moment indicated by the elapsed time, or may delete the data in the block or the block after the specific time indicated by the elapsed time. For example, the first device determines the to-be-deleted block according to the relationship between the current time and the time interval between the generation time of the block and the storage duration of the block. Or the first device determines the to-be-deleted block according to the relationship between the current time and the elapsed time.

For example, the first device determines the block in the blockchain network from the lowest block in the current blockchain or the block with the smallest sequence number (specifically, at initialization, from the first block of the blockchain) The block to be deleted. As shown in FIG. 2, the first device starts from block X, and when the first device determines that the time interval between the current time and the time recorded by the timestamp of the block X is greater than or equal to the storage duration of the block X, Or when the first device determines that the current time is the elapsed time of the block X, or when the first device determines that the current time is later than the elapsed time of the block X, the first device considers the block X as the to-be-deleted block, the first device The block X can be directly deleted, and then the first device determines whether the block X+1 is the block to be deleted, and so on, until a certain block is not the block to be deleted. The current time (or current time) here may be the time when the first device generates a new block or the time when the current block chain node broadcasts a new block chain, and the time recorded by the time stamp of the block X is included as the block X. The generation time or the elapsed time of block X.

Alternatively, if the first device determines that the block X is the to-be-deleted block, the first device does not delete the block X, but records the block information of the block X and the number of deletion authentications (initial value 1) in the block. In the chain, the blockchain is broadcasted to the blockchain network. The device that obtains the authentication right next time increases the value of the number of deleted authentication times by one, until the device that obtains the authentication right for the Nth time, the block X is in the zone. The number of deletion authentications in the blockchain network has reached the preset value N, so the device that obtains the authentication right for the Nth time deletes the block X from the blockchain. Then, the device that obtains the authentication right for the Nth time determines whether the block X+1 is the to-be-deleted block, and if the block X+1 is the to-be-deleted block, the device that obtains the authentication right for the Nth time can block the block. The X+1 block information and the number of deletion authentications (initial value 1) are added to the blockchain, and the blockchain is broadcasted to the blockchain network until block X+1 is in the blockchain network. When the number of authentication deletions is N, the device in the blockchain network deletes the block X+1, and the value of N is a preset value.

Alternatively, as shown in FIG. 3, the first device determines whether the consecutive K blocks starting from the block X satisfy the deletion condition, and if the consecutive K blocks satisfy the deletion condition, the first device sets the K areas. The block is determined to be the block to be deleted. The first device may directly delete consecutive K blocks starting from the block X, after which the first device determines whether the consecutive L consecutive blocks starting from the block X+K satisfy the deletion condition, and if so, the first device deletes the A continuous L block starting from block X+K. And so on, until a plurality of consecutive blocks do not completely satisfy the deletion condition position, where the values of K and L may be the same or different. And the values of K and L can be dynamically configured values.

Alternatively, if the first device determines that the consecutive K blocks starting from the block X satisfy the block to be deleted, the first device does not delete the consecutive K blocks starting from the block X, but the slave block. The block information and the number of deletion authentications (initial value 1) of consecutive K blocks starting from X are recorded in the blockchain, and the blockchain is broadcasted to the blockchain network, and the device that obtains the authentication right next time will The value of deleting the number of authentication times is increased by 1. When the device that obtains the authentication right is acquired for the Nth time, the number of deletion authentications of the K blocks starting from block X in the blockchain network has reached the preset value N, so the first The device that acquires the authentication right N times deletes the K blocks starting from block X from the blockchain. After that, the device that obtains the authentication right for the Nth time determines whether the L consecutive blocks starting from the block X+K satisfy the deletion condition, and if the L consecutive blocks starting from the block X+K are the to-be-deleted area. Block, the device that obtains the authentication right for the Nth time may add the block information and the number of deletion authentication times (initial value 1) of the L consecutive blocks starting from the block X+K to the blockchain, and add the zone The blockchain is broadcasted into the blockchain network until the number of deletion authentications of the consecutive L blocks starting from block X+K in the blockchain network is N, and the device in the blockchain network will be from block X. L consecutive blocks starting with +K delete.

In the above embodiment, optionally, if the first device determines that one or more consecutive K blocks starting from X do not satisfy the deletion condition. The first device can delete the data in the blocks satisfying the deletion condition among the consecutive K blocks at this time, but retain the block headers of the blocks. Wait until the device in the blockchain network determines that consecutive K blocks starting from X satisfy the deletion condition, and delete the consecutive K blocks. Or, recording the block information and the number of deletion authentications of the consecutive K blocks into the blockchain, and broadcasting the blockchain to the blockchain network until a device in the blockchain network determines the continuous When the number of deletion authentications of the K blocks is N, the consecutive K blocks are deleted.

It should be noted that the foregoing deletion condition refers to that the time interval between the current time and the generation time of the block is greater than or equal to the storage duration of the block, or the above deletion condition refers to the current time being the elapsed time of the block. , or the above deletion condition refers to the elapsed time of the current time later than the block.

In all of the above embodiments, optionally, the block information and the number of deletion authentications are recorded in the blockchain of the blockchain.

Optionally, in S101, the first device may determine, according to whether the block information is carried in the blockchain, and the number of times of deleting the authentication, determining the to-be-deleted block.

Specifically, in some embodiments, if the block information is carried in the blockchain and the number of authentication attempts is deleted, the first device determines the block indicated by the block information as the block to be deleted.

Further, if the first device determines that the value of the number of deletion authentications is less than a preset value, the first device increases the value of the number of deletions by one, and then sends the foregoing block information and the number of authentication deletions to the device in the blockchain network. Until the number of deletion authentications recorded in the blockchain is a preset value, the device in the blockchain network deletes the block indicated by the block information.

If the first device determines that the value of the deletion authentication number is a preset value, the first device may directly delete the block indicated by the block information.

FIG. 4 shows a blockchain-based data processing method according to another embodiment of the present invention. The blockchain device A-blockchain device D in Figure 4 is a device in a blockchain network. As shown in FIG. 4, method 200 includes:

S201, the blockchain device A generates data that needs to be authenticated in the blockchain network;

Optionally, the data generated by the blockchain device A that needs to be authenticated in the blockchain network is transaction data between the blockchain device A and the blockchain device B.

Furthermore, the blockchain device A can negotiate with the blockchain device B to agree on the storage duration or elapsed time of the transaction data, and determine the storage duration or elapsed time of the transaction data in the blockchain network. Alternatively, the blockchain device A can independently determine the storage duration or elapsed time of the data in the blockchain network. For example, the blockchain device A determines the storage duration or elapsed time of data in the blockchain network according to the pre-registration mode.

S202, the blockchain device A broadcasts the data to the blockchain network;

S203. The blockchain device D determines a storage duration of the block to be generated.

Specifically, in some embodiments, the blockchain device D acquires the block verification right, and the blockchain device D determines the storage duration of the currently generated new block according to the storage duration of all new data when the new block is currently generated. It should be noted here that the storage duration of the block refers to the length of time that the block needs to be stored in the blockchain network or the length of time in which the data in the block needs to be stored in the blockchain network.

For example, if the blockchain device D determines that the storage durations of all the new data described above are the same, the blockchain device D determines the storage duration of all new data as the storage duration of the tile to be generated. If the storage duration of all the above new data is different, the blockchain device D determines the storage duration corresponding to the data having the longest storage duration as the storage duration of the tile to be generated.

For example, suppose there are 5 new data, which are respectively labeled as data 1, data 2, data 3, data 4, and data 5. If the storage time of these 5 data is 1 hour, the blockchain device D determines that it is to be generated. The storage time of the block is 1 hour. However, if the storage duration of the five data is not completely the same, and the storage duration of the data 5 is the longest and the storage duration is 3 hours, the blockchain device D determines 3 hours as the storage duration of the tile to be generated.

Specifically, in some embodiments, the blockchain device D acquires the block verification right, and the blockchain device D determines the elapsed time of the currently generated new block based on the elapsed time of all new data when the new block is currently generated. It should be noted here that the elapsed time of the block refers to the time when the block needs to be deleted in the blockchain network or the time in which the data in the block needs to be deleted in the blockchain network.

For example, if the blockchain device D determines that the elapsed time of all of the above new data is the same, the blockchain device D determines the elapsed time of all new data as the elapsed time of the block to be generated. If the elapsed time of all the above new data is different, the block chain device D determines the elapsed time corresponding to the latest data of the elapsed time as the elapsed time of the block to be generated.

For example, suppose there are 5 new data, labeled as Data 1, Data 2, Data 3, Data 4, and Data 5. If the elapsed time of these 5 data is 20:00, the blockchain device D determines that The elapsed time of the generated block is 20:00. However, if the elapsed time of the five data is not completely the same, and the elapsed time of the data 5 is the latest and the elapsed time is 12 o'clock in the morning, the block chain device D determines the 12 o'clock in the morning as the elapsed time of the block to be generated.

S204, the blockchain device D connects the generated block to the blockchain, and then broadcasts the blockchain to the blockchain network;

S205, the blockchain device C determines the to-be-deleted block in the blockchain network, and performs a deletion-related operation;

Specifically, in some embodiments, if the block chain node C acquires the block authentication right, the blockchain device C may determine the to-be-deleted block in the blockchain network by using the method described in the method 100, and perform deletion related. operating.

S206. The blockchain device C broadcasts the generated blockchain in the blockchain network.

Specifically, in some embodiments, when the blockchain device C determines the to-be-deleted block in the blockchain network by using the method described in the method 100, the related method in the method 100 may also be performed to implement the to-be-deleted region. The deletion of the block.

Optionally, in S206, the blockchain generated by the blockchain device C may be a block that deletes the to-be-deleted block and increases the block generated by the blockchain device C on the basis of the received blockchain. The chain may also record the block information of the block to be deleted and the number of deletion authentications in the received blockchain, and on the basis of this, add the blockchain obtained by the block generated by the blockchain device C.

Optionally, in S206, when the blockchain device C generates the block, the block information and the deletion time information may be carried in the block in the block, for example, carrying the block information and deleting in the block header of the block. Time information. The block information is used to indicate the deleted block, the deletion time information is used to indicate the deletion time of the deleted block, or the deletion time information is used to indicate the deletion time of the data included in the deleted block.

Further, the blockchain device C may send the deleted block or the data included in the deleted block to one or more storage devices, and after a certain time, the storage device deletes the data. The one or more storage devices described above may be storage devices in a blockchain network, or may be storage devices outside the blockchain network. The storage duration of the data in the storage device may be determined by the blockchain device C and the storage duration of the data is transmitted to the storage device while the data is being transmitted to the storage device.

Optionally, as another example, a plurality of different types of blockchains exist in the blockchain network, and when the block device generates the block, determine the blockchain corresponding to the block, and connect the generated block to the determined block. On the blockchain. For example, different The blockchain corresponds to different storage durations, and the blockchain device C determines the blockchain corresponding to the block according to the storage duration of the block when generating the block.

For example, the blockchain is stored in three blockchains, namely blockchain 1, blockchain 2, and blockchain 3. The storage duration of the block in the blockchain 1 is less than or equal to 1 hour, the storage duration of the block in the blockchain 2 is greater than 1 hour and less than 3 hours, and the storage duration of the block in the blockchain 3 is greater than or equal to 3 hours. . If the blockchain device C determines that the generated block has a storage duration of 2 hours, the blockchain device C connects the generated block to the blockchain 2. The method for determining the storage duration of the block by the blockchain device C is the same as the method for determining the storage duration of the block by the blockchain D, and details are not described herein again.

Alternatively, the blockchain is stored in three blockchains, namely, blockchain 1, blockchain 2, and blockchain 3. The elapsed time of the block in blockchain 1 is before 12 o'clock in the morning, and the elapsed time of the block in blockchain 2 is after 12 o'clock in the morning and before 8 o'clock in the evening, the elapsed time of the block in blockchain 3 is After 8 pm and before 24 pm. If the block chain device C determines that the elapsed time of the generated block is 5 pm, the block chain device C connects the generated block to the block chain 2. And the method for determining the elapsed time of the block by the block chain device C is the same as the method for determining the elapsed time of the block by the block chain D, and details are not described herein again.

In the embodiment of the present application, optionally, the data generated by the blockchain device A that needs to be authenticated in the blockchain network may be sent by other devices to the blockchain device A. As shown in FIG. 5, method 300 includes:

S301, the Internet of Things device A generates data that needs to be authenticated in the blockchain network;

It should be noted that the Internet of Things device A is not a device in the blockchain network, or the IoT device A itself does not directly participate in the blockchain.

Optionally, the data generated by the Internet of Things device A that needs to be authenticated in the blockchain network is transaction data between the Internet of Things device A and the Internet of Things device B. The Internet of Things device A can negotiate with the IoT device B to agree on the storage duration or elapsed time of the transaction data, and determine the storage duration or elapsed time of the transaction data in the blockchain network. For example, the Internet of Things device A may be a smart washing machine, and the smart washing machine may automatically purchase laundry detergent from the smart vending machine, and the data generated during the transaction is transaction data. The smart washing machine can negotiate with the smart vending machine for the storage duration or elapsed time of the transaction data.

Alternatively, the data generated by the Internet of Things device A that needs to be authenticated in the blockchain network only relates to the behavior of the IoT device A itself. For example, the Internet of Things device A is an air purifier for detecting PM2.5 at home. Then, the Internet of Things device A can determine the storage duration or elapsed time of the data in the blockchain network. For example, the IoT device A determines the storage duration or elapsed time of data in the blockchain network according to the pre-registration mode.

S302, the Internet of Things device A sends the data that needs to be authenticated in the blockchain network to the blockchain device A;

Specifically, in some embodiments, the IoT device A transmits the data and the determined storage duration or elapsed duration of the data to the blockchain device A.

Alternatively, as an example, the IoT device A establishes a communication connection between the IoT device A and the blockchain device A before transmitting the data to the blockchain device A. For example, the IoT device A may send an access message to the blockchain device A after receiving the public key information sent by the blockchain device A, and the blockchain device A receives the access message sent by the IoT device A. , to determine whether it is possible to establish a communication connection with the Internet of Things device A. If possible, the blockchain device A sends feedback information to the IoT device A, and a communication connection is established between the IoT device A and the blockchain device A.

Optionally, in S302, the IoT device A determines the self when it sends the data to the blockchain device A. Or the storage duration or elapsed time stored in the storage device by the data negotiated with the Internet of Things device B is also sent to the blockchain device A together, so that the blockchain device A sends the data to the storage device. The storage duration or elapsed time is sent to the storage device together.

S303. Perform S200 in the method 200 and subsequent steps.

The blockchain-based data processing method of the embodiment of the present application is described in detail above with reference to FIG. 1 to FIG. 5. The device according to the present application will be described in detail below with reference to FIG. 6. As shown in FIG. 6, the device 10 includes:

The processing module 11 is configured to determine a to-be-deleted block in the blockchain network, where the device is a device in the blockchain network;

The deletion operation execution module 12 is configured to perform a deletion related operation to delete the to-be-deleted block.

Therefore, the deleting related operation is performed after determining the to-be-deleted block in the blockchain network according to the device according to the embodiment of the present application, and deleting the to-be-deleted block is implemented. Thereby, it is possible to reduce the bandwidth required for the load in the blockchain network and the transmission of the blockchain.

In the embodiment of the present application, optionally, the processing module 11 is specifically configured to:

Determining a storage duration or elapsed time of a block in the blockchain network;

The to-be-deleted block is determined according to the storage duration or the elapsed time shown.

In the embodiment of the present application, the processing module 11 is specifically configured to: determine that a time interval between a current time and a generation time of the i th first block in the consecutive K first blocks is greater than or And a storage duration of the i-th first block, where the storage duration of the i-th block is used to indicate data included in the i-th first block or the i-th first block The length of time that needs to be stored in the blockchain network, K is a positive integer greater than or equal to 1, i=1, . . . K; the K first blocks are determined as blocks to be deleted.

In the embodiment of the present application, the processing module 11 is specifically configured to: determine that the current time is the elapsed time of the i th first block in the consecutive K first blocks, or the current time is later than An elapsed time of the i th first block in the K first blocks, where an elapsed time of the i th first block is used to indicate that the first block or the first block is included The data needs to be deleted in the blockchain network, K is a positive integer greater than or equal to 1, i = 1, ... K; the K first blocks are determined as blocks to be deleted.

In the embodiment of the present application, the deletion operation execution module 12 is specifically configured to: delete the K first blocks; or set an initial value of the deletion authentication times of the K first blocks. Transmitting, to the device in the blockchain network, the first block information and the number of deletion authentications of the K first blocks, where the first block information is used to indicate the K first blocks The device in the blockchain network is configured to delete the K first blocks when determining that the number of deletion authentications of the K first blocks is a first preset value.

In the embodiment of the present application, optionally, the processing module 11 determines that a time interval between a current time and a generation time of the i th first block in the consecutive K first blocks is greater than or equal to the The processing module 11 is further configured to: determine, in the K first blocks, that the time interval between the generated time and the current time is less than the storage time of the block in the first block of the ith first block Piece;

The deletion operation execution module 12 is further configured to delete data included in the first block where the time interval between the generation time and the current time is less than the storage duration of the block.

In the embodiment of the present application, optionally, determining that the current time is an elapsed time of the i th first block in the consecutive K first blocks, or the current time is later than the K first blocks The processing module 11 is further configured to: determine that the first region of the K first blocks has an elapsed time earlier than the current time, before the elapsed time of the i-th first block The block, K is a positive integer greater than or equal to 1, i=1, . . . K; the deletion operation execution module 12 is further configured to delete data included in the first block whose elapsed time is earlier than the current time.

In the embodiment of the present application, the processing module 11 is specifically configured to: determine that the first block information is carried in the blockchain, and delete the number of authentication times, where the first block information is used to indicate consecutive K The first block, the number of deletion authentications is used to indicate the number of deletion authentications of the K first blocks in the blockchain network, and K is a positive integer greater than or equal to 1; A block is determined as the block to be deleted.

In the embodiment of the present application, optionally, the value of the deletion authentication number is a first preset value;

The deleting operation execution module 12 is specifically configured to: delete the K first blocks.

In the embodiment of the present application, optionally, the value of the deletion authentication number is smaller than the first preset value;

The deleting operation execution module 12 is specifically configured to: after the value of the deletion authentication number is increased by 1, send the first block information and the deletion authentication to a device in the blockchain network. The number of times, so that the devices in the blockchain network delete the K first blocks when determining that the number of deletion authentications of the K first blocks is the first preset value.

In the embodiment of the present application, optionally, after the deleting operation execution module deletes the K first blocks, the processing module 11 is further configured to: determine the current time and the consecutive L second blocks. The time interval between the generation moments of the jth second block is greater than or equal to the storage duration of the jth second block, and the L second blocks are generated later than the K first blocks And a block adjacent to the L first blocks, L is a positive integer greater than or equal to 1, j=1, . . . L;

The deletion operation execution module 12 is further configured to delete the L second blocks; or set an initial value of the deletion authentication times of the L second blocks, and to the blockchain network The device sends the second block information and the number of deletion authentications of the L second blocks, where the second block information is used to indicate the L second blocks, so as to be in the blockchain network. When the device confirms that the number of deletion authentications of the L second blocks is the first preset value, the device deletes the L second blocks.

In the embodiment of the present application, the processing module 11 is further configured to: generate a third block, where the third block carries a storage duration of the third block, and the third block The storage duration is used to indicate the length of time that the data included in the third block or the third block needs to be stored in the blockchain network.

In the embodiment of the present application, optionally, the block header of the third block includes a storage duration of the third block.

In the embodiment of the present application, optionally, the third block includes data sent by the second device;

The processing module 11 is further configured to: receive data sent by the second device and a first storage duration of the data, where the second device is the blockchain network, before the generating the third block The first storage duration is used to indicate a length of time that the data determined by the second device needs to be stored in the blockchain network; and the third is determined according to the first storage duration The storage duration of the block.

In the embodiment of the present application, optionally, the first storage duration is determined by the second device by negotiating with a third device, where the third device is a device in the blockchain network.

In the embodiment of the present application, optionally, the first storage duration is determined by the second device according to a second storage duration, where the second storage duration is determined by the fourth device. The duration of time stored in the blockchain network, the fourth device being a device outside the blockchain network.

In the embodiment of the present application, optionally, the second storage duration is determined by the fourth device by negotiating with the fifth device, where the fifth device is a device other than the blockchain network. .

In the embodiment of the present application, the processing module 11 is further configured to: determine a blockchain to which the third block belongs; and add the third block to the blockchain.

In the embodiment of the present application, the processing module 11 is specifically configured to: determine, according to the storage duration and the preset correspondence relationship of the third block, a blockchain to which the third block belongs. The preset correspondence relationship is the correspondence between the storage duration of the block and the blockchain.

In the embodiment of the present application, optionally, the identifier of the blockchain is carried in the blockchain.

In the embodiment of the present application, the processing module 11 is further configured to: generate a fourth block, where the block header of the fourth block includes third block information and deletion time information, where The third block information is used to indicate the deleted block, the deletion time information is used to indicate the deletion time of the deleted block, or the deletion time information is used to indicate the deletion of the data included in the deleted block. time.

In the embodiment of the present application, the processing module 11 is further configured to: send the deleted block to a storage device in the blockchain network or a storage device outside the blockchain network or The data included in the deleted block.

In the embodiment of the present application, the processing module 11 is further configured to: send a third storage duration to a storage device in the blockchain network or a storage device outside the blockchain network, where The third storage duration is that the deleted block or the included data in the deleted block requires a storage device in the blockchain network or a storage device outside the blockchain network. The length of time that is stored.

It should be understood that the device 10 in the embodiment of the present invention is embodied in the form of a functional unit. In an alternative example, those skilled in the art may understand that the device 10 may be used to perform various processes and/or steps in the foregoing method embodiments. To avoid repetition, details are not described herein.

FIG. 7 shows a schematic block diagram of a device in accordance with another embodiment of the present application. As shown in Figure 7, device 20 includes:

The processing module 21 is configured to acquire data, where the device is a device in a blockchain network;

The processing module 21 is further configured to determine a first storage duration of the data, where a first storage duration of the data is used to indicate that the data determined by the device needs to be stored in the blockchain network. duration;

The transceiver module 23 is configured to send the data and the first storage duration to a device in the blockchain network, where the first storage duration is used to determine a storage duration of a third block that includes the data, The storage duration of the third block is used to indicate a length of time in which the data included in the third block or the third block needs to be stored in the blockchain network.

Therefore, after the device according to the embodiment of the present application determines the storage duration of the acquired data, the acquired data and the storage duration of the determined data are sent to the device in the blockchain network, so that the device in the blockchain network can The storage duration of the block containing the data is determined according to the storage duration determined by the device. Therefore, the device in the blockchain network can perform the delete related operation when the block is to be deleted according to the storage duration of the block containing the data, and delete the block to be deleted. Thereby, it is possible to reduce the bandwidth required for the load in the blockchain network and the transmission of the blockchain.

In the embodiment of the present application, the processing module 21 is specifically configured to: negotiate with a third device to determine the first storage duration, and the third device is a device in the blockchain network. .

In the embodiment of the present application, the processing module 21 is specifically configured to: receive the data sent by the fourth device, and the second storage duration, where the second storage duration is the data determined by the fourth device. The length of time required to be stored in the blockchain network, the fourth device being a device outside the blockchain network; determining the first storage duration according to the second storage duration.

It should be understood that the device 20 in the embodiment of the present invention is embodied in the form of a functional unit. In an alternative example, those skilled in the art may understand that the device 20 may be used to perform various processes and/or steps in the foregoing method embodiments. To avoid repetition, details are not described herein.

FIG. 8 shows an apparatus in accordance with still another embodiment of the present application. As shown in FIG. 8, the device 100 includes a processor 110 and a transceiver 120. The processor 110 is coupled to the transceiver 120. Optionally, the device 100 further includes a memory 130 coupled to the processor 110. The processor 110, the memory 130, and the transceiver 120 can communicate with each other through an internal connection path. The processor 110 is configured to determine a to-be-deleted block in the blockchain network, where the device is a device in the blockchain network, and the processor 110 is further configured to perform a delete related operation to delete the The block to be deleted.

The device 100 according to the embodiment of the present application may refer to the device 10 corresponding to the embodiment of the present application, and the respective units/modules in the device and the other operations and/or functions described above are respectively for the corresponding processes in the foregoing methods, for the sake of brevity, This will not be repeated here.

FIG. 9 is a schematic block diagram of a device according to still another embodiment of the present application. As shown in FIG. 9, the device 200 includes a processor 210 and a transceiver 220. The processor 210 is connected to the transceiver 220, optionally, The device 200 also includes a memory 230 that is coupled to the processor 210. The processor 210, the memory 230, and the transceiver 220 can communicate with each other through an internal connection path. The processor 210 is configured to acquire data, where the device is a device in a blockchain network, and the transceiver 220 is further configured to determine a first storage duration of the data, where the data is first. The storage duration is used to indicate the length of time that the data determined by the device needs to be stored in the blockchain network; the transceiver 220 is configured to send the data and the device in the blockchain network The first storage duration, the first storage duration is used to determine a storage duration of a third block that includes the data, and a storage duration of the third block is used to indicate the third block or the The data included in the third block needs to be stored in the blockchain network for the length of time.

The device 200 according to the embodiment of the present application may refer to the device 20 corresponding to the embodiment of the present application, and each unit/module in the device and the other operations and/or functions described above are respectively for the corresponding processes in the foregoing method, for the sake of brevity, This will not be repeated here.

It can be understood that the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability. The above processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), or an off-the-shelf programmable gate array (Field). Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory. The volatile memory can be a Random Access Memory (RAM) that acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM). SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Synchronous Connection Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to comprise, without being limited to, these and any other suitable types of memory.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units 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 units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), and a A device that can store program code, such as a random access memory (RAM), a disk, or an optical disk.

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It should be covered by the scope of protection of this application. Therefore, the scope of protection of the present application should be determined by the scope of the claims.

Claims

A blockchain-based data processing method, comprising:

Determining, by the first device, a to-be-deleted block in the blockchain network, where the first device is a device in the blockchain network;

The first device performs a delete related operation to delete the to-be-deleted block.
The method according to claim 1, wherein the determining, by the first device, the to-be-deleted block in the blockchain network comprises:

Determining, by the first device, a storage duration or an elapsed time of a block in the blockchain network;

The first device determines the to-be-deleted block according to the storage duration or the elapsed time.
The method according to claim 2, wherein the determining, by the first device, the to-be-deleted block according to the storage duration comprises:

Determining, by the first device, a time interval between a current time and a generation time of the i th first block in the consecutive K first blocks is greater than or equal to a storage duration of the i th first block, The storage duration of the i-th block is used to indicate the length of time that the data included in the i-th first block or the i-th first block needs to be stored in the blockchain network, K Is a positive integer greater than or equal to 1, i = 1, ... K;

The first device determines the K first blocks as blocks to be deleted.
The method according to claim 2, wherein the determining, by the first device, the to-be-deleted block according to the elapsed time comprises:

Determining, by the first device, that the current time is an elapsed time of the i th first block in the consecutive K first blocks, or the current time is later than the i th first area in the K first blocks The elapsed time of the block, the elapsed time of the i-th first block is used to indicate when the data included in the first block or the first block needs to be deleted in the blockchain network , K is a positive integer greater than or equal to 1, i = 1, ... K;

The first device determines the K first blocks as blocks to be deleted.
The method according to claim 3 or 4, wherein the first device performs a deletion related operation, including:

The first device deletes the K first blocks; or

The first device sets an initial value of the number of deletion authentication times of the K first blocks, and sends the first block information and the deletion of the K first blocks to devices in the blockchain network. The number of times of authentication, the first block information is used to indicate the K first blocks, so that the device in the blockchain network determines that the number of deletion authentications of the K first blocks is the first When the preset value is used, the K first blocks are deleted.
The method according to claim 3 or 5, wherein the time interval between the current time and the generation time of the i-th first block in the consecutive K first blocks is greater than And before or equal to the storage duration of the ith first block, the method further includes:

Determining, by the first device, that the time interval between the generation time and the current time in the K first blocks is smaller than the storage time of the block;

The first device deletes data included in the first block where the time interval between the generation time and the current time is less than the storage duration of the block.
The method according to claim 4 or 5, wherein the first device determines that the current time is the elapsed time of the i-th first block in the consecutive K first blocks, or the current time is later than The method further includes: before the elapsed time of the ith first block of the K first blocks, the method further includes:

Determining, by the first device, that the first block in the K first blocks has an elapsed time earlier than a current time;

The first device deletes data included in the first block whose elapsed time is earlier than the current time.
The method according to claim 1, wherein the determining, by the first device, the to-be-deleted block in the blockchain network comprises:

Determining, by the first device, that the first block information is carried in the blockchain and deleting the number of authentication times, where the first block information is used to indicate consecutive K first blocks, and the number of deletion authentications is used to indicate the The number of deletion authentications of the K first blocks in the blockchain network, and K is a positive integer greater than or equal to 1;

The first device determines the K first blocks as blocks to be deleted.
The method according to claim 8, wherein the value of the number of deletion authentications is a first preset value;

The first device performs a delete related operation, including:

The first device deletes the K first blocks.
The method according to claim 9, wherein the value of the number of deletion authentications is less than a first preset value;

The first device performs a delete related operation, including:

After the first device increases the value of the deletion authentication number by 1, the first device sends the first block information and the deletion authentication number to the device in the blockchain network, so as to facilitate the block. The device in the chain network deletes the K first blocks when determining that the number of deletion authentications of the K first blocks is the first preset value.
The method according to any one of claims 3 to 9, wherein after the first device deletes the K first blocks, the method further comprises:

Determining, by the first device, a time interval between a current time and a generation time of the jth second block in the consecutive L second blocks is greater than or equal to a storage duration of the jth second block, where the L The second block is a block whose generation time is later than the K first blocks and adjacent to the L first blocks, where L is a positive integer greater than or equal to 1, j=1, . . . L ;

The first device deletes the L second blocks; or

The first device sets an initial value of the number of deletion authentication times of the L second blocks, and sends the second block information and the deletion of the L second blocks to the devices in the blockchain network. a number of times of authentication, the second block information is used to indicate the L second blocks, so that the device in the blockchain network confirms that the number of deletion authentications of the L second blocks is the When the first preset value is used, the L second blocks are deleted.
The method according to any one of claims 1 to 11, wherein the method further comprises:

The first device generates a third block, where the third block carries a storage duration of the third block, and a storage duration of the third block is used to indicate the third block or the The data included in the third block needs to be stored in the blockchain network for the length of time.
The method according to claim 12, wherein the block header of the third block includes a storage duration of the third block.
The method according to claim 12 or 13, wherein the third block includes data sent by the second device;

The method further includes: before the generating, by the first device, the third block:

The first device receives the data sent by the second device and the first storage duration of the data, the second device is a device in the blockchain network, and the first storage duration is used to indicate the first The length of time that the data determined by the second device needs to be stored in the blockchain network;

The first device determines, according to the first storage duration, a storage duration of the third block.
The method according to claim 14, wherein the first storage duration is determined by the second device by negotiating with a third device, wherein the third device is in the blockchain network. device.
The method according to claim 15, wherein the first storage duration is determined by the second device according to a second storage duration, and the second storage duration is the data requirement determined by the fourth device. The length of time stored in the blockchain network, the fourth device being a device outside the blockchain network.
The method according to claim 16, wherein the second storage duration is determined by the fourth device by negotiating with a fifth device, and the fifth device is outside the blockchain network. device of.
The method according to any one of claims 12 to 17, wherein the method further comprises:

Determining, by the first device, a blockchain to which the third block belongs;

The first device adds the third block to the blockchain.
The method according to claim 18, wherein the determining, by the first device, the blockchain to which the third block belongs comprises:

Determining, by the first device, a blockchain to which the third block belongs according to a storage duration of the third block and a preset correspondence, where the preset correspondence is a storage duration of the block and a blockchain Correspondence.
The method according to claim 18 or 19, wherein the blockchain carries an identifier of the blockchain.
The method according to any one of claims 1 to 20, wherein the method further comprises:

The first device generates a fourth block, where the block header of the fourth block includes third block information and deletion time information, where the third block information is used to indicate the deleted block. The deletion time information is used to indicate a deletion time of the deleted block, or the deletion time information is used to indicate a deletion time of data included in the deleted block.
The method according to any one of claims 1 to 21, wherein the method further comprises:

The first device sends the data included in the deleted block or the deleted block to a storage device in the blockchain network or a storage device outside the blockchain network.
The method of claim 22, wherein the method further comprises:

Transmitting, by the first device, a third storage duration to a storage device in the blockchain network or a storage device outside the blockchain network, where the third storage duration is the deleted block or location The data included in the deleted block needs to be stored in a storage device in the blockchain network or a storage device outside the blockchain network.
A blockchain-based data processing method, comprising:

The second device acquires data, and the second device is a device in a blockchain network;

Determining, by the second device, a first storage duration of the data, where a first storage duration of the data is used to indicate a length of time that the data determined by the second device needs to be stored in the blockchain network;

Transmitting, by the second device, the data and the first storage duration to a device in the blockchain network, where the first storage duration is used to determine a storage duration of a third block that includes the data, where The storage time of the third block is used for Indicates a length of time in which the data included in the third block or the third block needs to be stored in the blockchain network.
The method according to claim 24, wherein the determining, by the second device, the first storage duration of the data comprises:

The second device negotiates with the third device to determine the first storage duration, and the third device is a device in the blockchain network.
The method according to claim 24, wherein the acquiring, by the second device, the data comprises:

Receiving, by the second device, the data sent by the fourth device and the second storage duration, where the second storage duration is the length of time that the data determined by the fourth device needs to be stored in the blockchain network The fourth device is a device outside the blockchain network;

The second device determines a first storage duration of the data, including:

The second device determines the first storage duration according to the second storage duration.
The method according to claim 26, wherein the second storage duration is determined by the fourth device by negotiating with a fifth device, the fifth device being outside the blockchain network device of.
An apparatus, comprising:

a processing module, configured to determine a to-be-deleted block in the blockchain network, where the device is a device in the blockchain network;

The deletion operation execution module is configured to perform a deletion related operation to delete the to-be-deleted block.
The device according to claim 28, wherein the processing module is specifically configured to:

Determining a storage duration or elapsed time of a block in the blockchain network;

The to-be-deleted block is determined according to the storage duration or the elapsed time.
The device according to claim 29, wherein the processing module is specifically configured to:

Determining, that the time interval between the current time and the generation time of the i th first block in the consecutive K first blocks is greater than or equal to the storage duration of the i th first block, the i th area The storage duration of the block is used to indicate that the data included in the i-th first block or the i-th first block needs to be stored in the blockchain network, and K is greater than or equal to 1 Positive integer, i=1,...K;

The K first blocks are determined as blocks to be deleted.
The device according to claim 29, wherein the processing module is specifically configured to:

Determining that the current time is an elapsed time of the i th first block in the consecutive K first blocks, or the current time is later than an elapsed time of the i th first block in the K first blocks, The elapsed time of the i-th first block is used to indicate that the data included in the first block or the first block needs to be deleted in the blockchain network, and K is greater than or a positive integer equal to 1, i = 1, ... K;

The K first blocks are determined as blocks to be deleted.
The device according to claim 30 or 31, wherein the deletion operation execution module is specifically configured to:

Deleting the K first blocks; or,

Setting an initial value of the number of deletion authentications of the K first blocks, and transmitting the first block information and the number of deletion authentications of the K first blocks to the devices in the blockchain network, The first block information is used to indicate the K first blocks, so that the device in the blockchain network determines that the number of deletion authentications of the K first blocks is When the first preset value is used, the K first blocks are deleted.
The device according to claim 30 or 32, wherein the processing module determines that the time interval between the current time and the generation time of the i-th first block in the consecutive K first blocks is greater than or The processing module is further configured to: before the storage duration of the ith first block is equal to:

Determining, in the K first blocks, that the time interval between the generation time and the current time is less than the storage time of the block;

The deletion operation execution module is further configured to delete data included in the first block where the time interval between the generation time and the current time is less than the storage duration of the block.
The apparatus according to claim 31 or 32, wherein the elapsed time of determining the current time is the i-th first block in the consecutive K first blocks, or the current time is later than the K first Before the elapsed time of the ith first block in a block, the processing module is further configured to:

Determining that there is a first block in the K first blocks that has an elapsed time earlier than a current time;

The deletion operation execution module is further configured to delete data included in the first block whose elapsed time is earlier than the current time.
The device according to claim 28, wherein the processing module is specifically configured to:

Determining that the first block information is carried in the block chain and deleting the number of authentication times, the first block information is used to indicate consecutive K first blocks, and the number of deletion authentications is used to indicate the K first areas The number of deletion authentications of the block in the blockchain network, where K is a positive integer greater than or equal to 1;

The K first blocks are determined as blocks to be deleted.
The device according to claim 35, wherein the value of the number of deletion authentications is a first preset value;

The deleting operation execution module is specifically configured to: delete the K first blocks.
The device according to claim 36, wherein the value of the number of deletion authentications is less than a first preset value;

The deleting operation execution module is specifically configured to: after the value of the deletion authentication number is increased by 1, send the first block information and the deletion authentication number to devices in the blockchain network. The device in the blockchain network is configured to delete the K first blocks when determining that the number of deletion authentications of the K first blocks is the first preset value.
The device according to any one of claims 30 to 36, wherein after the deleting operation execution module deletes the K first blocks, the processing module is further configured to:

Determining, that the time interval between the current time and the generation time of the jth second block in the consecutive L second blocks is greater than or equal to the storage duration of the jth second block, wherein the L second blocks are Generating a block that is later than the K first blocks and adjacent to the L first blocks, L is a positive integer greater than or equal to 1, j=1, . . . L;

The deletion operation execution module is further configured to delete the L second blocks; or set an initial value of the deletion authentication times of the L second blocks, and send the device to the device in the blockchain network Transmitting, by the second block information, the number of deletion authentications of the L second blocks, where the second block information is used to indicate the L second blocks, so as to facilitate devices in the blockchain network When it is confirmed that the number of deletion authentications of the L second blocks is the first preset value, deleting the L second blocks.
The device according to any one of claims 28 to 38, wherein the processing module is further configured to:

Generating a third block, where the third block carries a storage duration of the third block, and a storage duration of the third block is used to indicate the third block or the third block The length of time that the included data needs to be stored in the blockchain network.
The device according to claim 39, wherein the block header of the third block includes a storage duration of the third block.
The device according to claim 39 or 40, wherein the third block includes data sent by the second device;

The processing module is further configured to: before the generating the third block:

Receiving data sent by the second device and a first storage duration of the data, the second device is a device in the blockchain network, and the first storage duration is used to indicate the location determined by the second device The length of time that the data needs to be stored in the blockchain network;

And determining, according to the first storage duration, a storage duration of the third block.
The device according to claim 41, wherein the first storage duration is determined by the second device by negotiating with a third device, wherein the third device is in the blockchain network. device.
The device according to claim 42, wherein the first storage duration is determined by the second device according to a second storage duration, and the second storage duration is the data requirement determined by the fourth device. The length of time stored in the blockchain network, the fourth device being a device outside the blockchain network.
The device according to claim 43, wherein the second storage duration is determined by the fourth device by negotiating with a fifth device, the fifth device being outside the blockchain network device of.
The device according to any one of claims 39 to 44, wherein the processing module is further configured to:

Determining a blockchain to which the third block belongs;

The third block is added to the blockchain.
The device according to claim 45, wherein the processing module is specifically configured to:

And determining, according to the storage duration of the third block and the preset correspondence, the blockchain to which the third block belongs, and the preset correspondence relationship is a correspondence between a storage duration of the block and a blockchain.
The device according to claim 45 or 46, wherein the blockchain carries an identifier of the blockchain.
The device according to any one of claims 28 to 47, wherein the processing module is further configured to:

Generating a fourth block, where the block header of the fourth block includes third block information and deletion time information, wherein the third block information is used to indicate the deleted block, and the deletion time information The deletion time for indicating the deleted block, or the deletion time information is used to indicate the deletion time of the data included in the deleted block.
The device according to any one of claims 28 to 48, wherein the processing module is further configured to:

The deleted block or the data included in the deleted block is transmitted to a storage device in the blockchain network or a storage device outside the blockchain network.
The device according to claim 49, wherein the processing module is further configured to:

Transmitting, to a storage device in the blockchain network or a storage device outside the blockchain network, a third storage duration, where the third storage duration is the deleted block or the deleted region The data included in the block requires a length of time to be stored in a storage device in the blockchain network or a storage device outside the blockchain network.
An apparatus, comprising:

a processing module, configured to acquire data, where the device is a device in a blockchain network;

The processing module is further configured to determine a first storage duration of the data, where a first storage duration of the data is used to indicate a duration that the data determined by the device needs to be stored in the blockchain network. ;

a transceiver module, configured to send the data and the first storage duration to a device in the blockchain network, where the first storage duration is used to determine a storage duration of a third block that includes the data, where The storage duration of the third block is used to indicate the length of time that the data included in the third block or the third block needs to be stored in the blockchain network.
The device according to claim 51, wherein the processing module is specifically configured to: negotiate with a third device to determine the first storage duration, and the third device is in the blockchain network device.
The device according to claim 51, wherein the processing module is specifically configured to:

Receiving, by the fourth device, the data and the second storage duration, where the second storage duration is a duration that the data determined by the fourth device needs to be stored in the blockchain network, and the fourth device is a device outside the blockchain network;

Determining the first storage duration according to the second storage duration.
The device according to claim 53, wherein the second storage duration is determined by the fourth device by negotiating with a fifth device, and the fifth device is outside the blockchain network. device of.
A communication system comprising the apparatus of any one of claims 28 to 50 and the apparatus of any one of claims 51 to 54.