CN110084601B - Parallel chain main chain transaction state synchronization method, equipment and storage medium - Google Patents
Parallel chain main chain transaction state synchronization method, equipment and storage medium Download PDFInfo
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Abstract
The invention provides a method, equipment and a storage medium for synchronizing transaction states of parallel chain main chains, wherein the method comprises the following steps: synchronizing a plurality of parallel chain transactions from corresponding main chain nodes, and sequentially storing transaction hashes of cross chain transactions in the synchronized parallel chain transactions to generate a cross chain transaction hash sequence; packaging and executing each parallel chain transaction and storing an execution state; generating an execution state sequence of each cross-chain transaction according to the cross-chain transaction hash sequence and the execution state of each cross-chain transaction, and generating bitmap information; generating a check hash according to each cross-chain transaction; generating a consensus transaction comprising bitmap information and a check hash and sending the consensus transaction to a corresponding main chain node for verifying the check hash according to each cross-chain transaction: and if the verification is successful, performing parallel chain consensus, and obtaining the execution state of each cross-chain transaction according to the bitmap information after the parallel chain consensus is successful so as to process the main chain service logic corresponding to each cross-chain transaction. The method and the device greatly reduce the memory space occupied by the cross-chain synchronous transaction state.
Description
Technical Field
The application relates to the technical field of block chains, in particular to a parallel chain main chain transaction state synchronization method, parallel chain main chain transaction state synchronization equipment and a storage medium.
Background
In various existing cross-link schemes, the transaction status of a transaction, i.e., whether the transaction is successfully executed, is generally identified according to the transaction hash.
In the parallel chain architecture proposed by the applicant (see patent documents CN201811005413.3, CN201811005421.8, cn201910157805.x, etc.), when a cross-chain transaction occurs between a parallel chain and a main chain, the main chain needs the parallel chain to provide a transaction state of the cross-chain transaction to process business logic, and each authorization node (referred to as a verification node in the above-mentioned part of documents) of the parallel chain needs to send a transaction hash of each cross-chain transaction to the main chain for identifying and confirming the transaction state, so that data redundancy is serious. For example, the parallel chain a is configured with 21 authorization nodes, and 10 cross-chain transactions are packaged in the parallel chain block1, and the consensus transaction packaged by each authorization node includes transaction hashes of the 10 cross-chain transactions, and in the memory space of the main chain node, only the transaction hash of the cross-chain transaction needs to occupy memory space of 32 bytes 10 bytes 21 bytes 6720 bytes.
Disclosure of Invention
In view of the foregoing drawbacks and deficiencies of the prior art, it is desirable to provide a parallel chain main chain transaction state synchronization method, device and storage medium that greatly reduce the memory space occupied by the synchronous transaction state in the main chain parallel chain cross-chain service.
In a first aspect, the present invention provides a parallel chain main chain transaction state synchronization method, which is applicable to an authorization node of a parallel chain, and includes:
synchronizing a plurality of parallel chain transactions from corresponding main chain nodes, and sequentially storing transaction hashes of cross chain transactions in the synchronized parallel chain transactions to generate a cross chain transaction hash sequence;
packaging and executing each parallel chain transaction and storing an execution state;
generating an execution state sequence of each cross-chain transaction according to the cross-chain transaction hash sequence and the execution state of each cross-chain transaction, and generating bitmap information according to the execution state sequence;
generating a check hash according to each cross-chain transaction;
generating a consensus transaction comprising bitmap information and a check hash and sending the consensus transaction to a corresponding main chain node for verifying the check hash according to each cross-chain transaction: and if the verification is successful, performing parallel chain consensus, and obtaining the execution state of each cross-chain transaction according to the bitmap information passing the consensus after the parallel chain consensus is successful so as to process the main chain service logic corresponding to each cross-chain transaction.
In a second aspect, the present invention provides another parallel chain main chain transaction state synchronization method, which is applicable to a main chain node corresponding to a parallel chain authorization node, and includes:
receiving a consensus transaction sent by a corresponding parallel chain authorization node; the method comprises the steps that a plurality of parallel chain transactions are synchronized from a main chain node by a parallel chain authorization node, transaction hashes of all cross chain transactions in all the synchronized parallel chain transactions are stored in sequence to generate cross chain transaction hash sequences, all the parallel chain transactions are packed and executed and execution states are stored, execution state sequences of all the cross chain transactions are generated according to the cross chain transaction hash sequences and the execution states of all the cross chain transactions, bitmap information is generated according to the execution state sequences, check hashes are generated according to all the cross chain transactions, and the check hashes are generated according to the bitmap information, the check hashes and the execution states of packed parallel chain blocks;
packaging and executing consensus transaction, and verifying and checking Hash according to each cross-chain transaction:
and if the verification is successful, performing parallel chain consensus, and obtaining the execution state of each cross-chain transaction according to the bitmap information passing the consensus after the parallel chain consensus is successful so as to process the main chain service logic corresponding to each cross-chain transaction.
In a third aspect, the present invention also provides an apparatus comprising one or more processors and a memory, wherein the memory contains instructions executable by the one or more processors to cause the one or more processors to perform a parallel chain backbone transaction state synchronization method provided in accordance with embodiments of the present invention.
In a fourth aspect, the present invention further provides a storage medium storing a computer program, the computer program enabling a computer to execute the parallel chain main chain transaction state synchronization method according to the embodiments of the present invention.
According to the parallel chain main chain transaction state synchronization method, equipment and storage medium provided by the embodiments of the invention, bitmap information is generated in parallel chain authorization nodes according to ordered cross-chain transaction hashes and execution states of each cross-chain transaction, and check hashes are generated according to each cross-chain transaction, so that the bitmap information and the check hashes are only required to be sent to a main chain, the main chain node can confirm the bitmap information through verifying the check hashes, the execution states of each cross-chain transaction are obtained according to the bitmap information identified by the parallel chains, and memory space occupied by the synchronous transaction states in the main chain parallel chain cross-chain service is greatly reduced (the reduction ratio depends on the number of cross-chain transactions packaged by parallel chain blocks).
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Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a flowchart of a parallel chain main chain transaction state synchronization method according to an embodiment of the present invention.
Fig. 2 is a flowchart of another parallel chain main chain transaction state synchronization method according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an apparatus according to an embodiment of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is a flowchart of a parallel chain main chain transaction state synchronization method according to an embodiment of the present invention.
As shown in fig. 1, in the present embodiment, the present invention provides a parallel chain main chain transaction state synchronization method for an authorization node of a parallel chain, including:
s11: synchronizing a plurality of parallel chain transactions from corresponding main chain nodes, and sequentially storing transaction hashes of cross chain transactions in the synchronized parallel chain transactions to generate a cross chain transaction hash sequence;
s12: packaging and executing each parallel chain transaction and storing an execution state;
s13: generating an execution state sequence of each cross-chain transaction according to the cross-chain transaction hash sequence and the execution state of each cross-chain transaction, and generating bitmap information according to the execution state sequence;
s14: generating a check hash according to each cross-chain transaction;
s15: generating a consensus transaction comprising bitmap information and a check hash and sending the consensus transaction to a corresponding main chain node for verifying the check hash according to each cross-chain transaction: and if the verification is successful, performing parallel chain consensus, and obtaining the execution state of each cross-chain transaction according to the bitmap information passing the consensus after the parallel chain consensus is successful so as to process the main chain service logic corresponding to each cross-chain transaction.
Specifically, taking an example that a parallel chain a is configured with 21 authorization nodes, the above method is exemplarily explained:
in step S11, the authorization node S1 synchronizes 50 parallel chain transactions of the parallel chain a from the corresponding main chain node S1, wherein 40 transactions are normal transactions and 10 transactions are cross-chain transactions. The authorization node s1 sequentially obtains the transaction hashes H of the 10 cross-chain transactions according to a pre-configured sequence1-H10Generating and storing a hash sequence [ H ] for cross-chain transactions1，…，H10[ MEANS FOR solving PROBLEMS ] is provided. At the same time, the authorization nodes S2-S21 synchronize the parallel chain transactions of parallel chain A from the main chain nodes S2-S21, respectively, in the same manner, each generating and storing a cross-chain transaction hash sequence.
In step S12, the authorization node S1 packages and executes the 50 parallel chain transactions synchronously obtained in step S11 into a parallel chain block1, and writes the execution state into the local database. Among them, 7 of 10 cross-chain transactions are executed successfully, and 3 are executed unsuccessfully. The authorized nodes S2-S21 synchronously execute step S12 in the same manner, and are not described in detail.
In step S13, the authorizing node S1 hashes in accordance with the cross-chain transaction hash sequence [ H [ ]1，…，H10The execution states of the 10 cross-chain transactions are sequentially searched from the local database, a sequence of execution states [ success, fail, …, success ] of the 10 cross-chain transactions is generated, and the sequence of execution states is converted into bitmap information (1011011101). The authorized nodes S2-S21 synchronously execute step S13 in the same manner, and are not described in detail.
In step S14, the authorization node S1 generates a check hash according to the cross-chain transaction hash sequence of the 10 cross-chain transactions: h-hash (H)1+…+H10). The authorized nodes S2-S21 synchronously execute step S14 in the same manner, and are not described in detail.
In step S15, the authorization node S1 generates a consensus transaction of block1 (for the consensus transaction, refer to cn201910157805.x specifically), and sends the consensus transaction to the corresponding main chain node S1. The consensus transaction includes the bitmap information (1011011101) generated in step S13 and the check hash H generated in step S14.
The backbone node S1 broadcasts the consensus transaction and packages the execution where it is executedWhen the transaction is identified, the transaction hashes H of the 10 cross-chain transactions of the parallel chain a are sequentially obtained according to the main chain block height corresponding to the block1 according to the preset (same as the step S11) sequence1-H10Verification of hash (H)1+…+H10) As to whether the check hash H is the same:
if yes, recording the execution result of the consensus transaction to the main chain to perform parallel chain consensus.
The authorized nodes S2-S21 execute step S15 in the same manner, and the main chain nodes S2-S21 record the execution results of the respective consensus transaction to the main chain after the verification check hash is successful in the same manner. When the execution results exceeding the pre-configured ratio are the same, the parallel link block consensus is successful (refer to CN201811005421.8 specifically).
After the parallel chain blocks are successfully identified, each main chain node respectively obtains the execution states of the 10 cross-chain transactions according to the bitmap information passing through the identification, and accordingly main chain service logics corresponding to the 10 cross-chain transactions are processed (for example, cross-chain transfer services, if a parallel chain payment account is successfully deducted, a main chain increases the balance of a transfer object, if the parallel chain deduction is failed, the main chain balance is unchanged, and other services are similar to each other).
In the above example, the check hash and the bitmap information only need to occupy 21 × memory space (32byte + about 1.2byte) ═ about 697 byte) in the memory space of the main chain node, which greatly saves the memory space compared to 6720byte memory space that needs to be consumed in the conventional method of confirming the execution state of the cross-chain transaction through the transaction hash.
In the above example, a way of generating a check hash according to a cross-chain transaction hash sequence and verifying the check hash according to the transaction hash of each cross-chain transaction is adopted; in other embodiments, a mode of generating a check hash according to a plurality of fields of each cross-chain transaction and verifying the check hash according to the same field may also be adopted, so that the same technical effect may be achieved. For example, a check hash is generated from a timestamp of each cross-chain transaction and verified from each timestamp, or a check hash is generated from signature information and a timestamp of each cross-chain transaction and verified from the same field, and so on.
In the embodiment, the bitmap information is generated in the parallel chain authorization node according to the ordered cross-chain transaction hash and the execution state of each cross-chain transaction, and the check hash is generated according to each cross-chain transaction, so that the bitmap information and the check hash are only required to be sent to the main chain, the main chain node can confirm the bitmap information through verifying the check hash, the execution state of each cross-chain transaction is obtained according to the bitmap information identified by the parallel chains, and the memory space occupied by the synchronous transaction state in the main chain parallel chain cross-chain service is greatly reduced (the reduction ratio depends on the number of cross-chain transactions packaged by parallel chain blocks).
Fig. 2 is a flowchart of another parallel chain main chain transaction state synchronization method according to an embodiment of the present invention. The method illustrated in fig. 2 may be performed in conjunction with the method illustrated in fig. 1.
As shown in fig. 2, in this embodiment, the present invention further provides another parallel chain main chain transaction state synchronization method suitable for a main chain node corresponding to a parallel chain authorization node, including:
s21: receiving a consensus transaction sent by a corresponding parallel chain authorization node; the method comprises the steps that a plurality of parallel chain transactions are synchronized from a main chain node by a parallel chain authorization node, transaction hashes of all cross chain transactions in all the synchronized parallel chain transactions are stored in sequence to generate cross chain transaction hash sequences, all the parallel chain transactions are packed and executed and execution states are stored, execution state sequences of all the cross chain transactions are generated according to the cross chain transaction hash sequences and the execution states of all the cross chain transactions, bitmap information is generated according to the execution state sequences, check hashes are generated according to all the cross chain transactions, and the check hashes are generated according to the bitmap information, the check hashes and the execution states of packed parallel chain blocks;
s22: packaging and executing consensus transaction, and verifying and checking Hash according to each cross-chain transaction:
if the verification is successful, go to step S23: carrying out parallel chain consensus; and the number of the first and second groups,
s24: and after the parallel chain consensus is successful, obtaining the execution state of each cross-chain transaction according to the bitmap information passing the consensus so as to process the main chain business logic corresponding to each cross-chain transaction.
Preferably, the generating the check hash according to each cross-chain transaction includes: generating a check hash according to the cross-chain transaction hash sequence; the verifying the hash according to each cross-chain transaction verification comprises: and acquiring the transaction hashes of the cross-chain transactions in sequence, and verifying the verification hashes according to the acquired transaction hashes.
Preferably, the generating the check hash according to each cross-chain transaction includes: generating a check hash according to a plurality of fields of each cross-chain transaction; the verifying the hash according to each cross-chain transaction verification comprises: and acquiring a plurality of fields of each cross-chain transaction in sequence, and verifying the check hash according to the acquired fields.
The transaction state synchronization principle of the method shown in fig. 2 can refer to the method shown in fig. 1, and is not described herein again.
Fig. 3 is a schematic structural diagram of an apparatus according to an embodiment of the present invention.
As shown in fig. 3, as another aspect, the present application also provides an apparatus 300 including one or more Central Processing Units (CPUs) 301 that can perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM)302 or a program loaded from a storage section 308 into a Random Access Memory (RAM) 303. In the RAM303, various programs and data necessary for the operation of the apparatus 300 are also stored. The CPU301, ROM302, and RAM303 are connected to each other via a bus 304. An input/output (I/O) interface 305 is also connected to bus 304.
The following components are connected to the I/O interface 305: an input portion 306 including a keyboard, a mouse, and the like; an output section 307 including a display such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker; a storage section 308 including a hard disk and the like; and a communication section 309 including a network interface card such as a LAN card, a modem, or the like. The communication section 309 performs communication processing via a network such as the internet. A drive 310 is also connected to the I/O interface 305 as needed. A removable medium 311 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 310 as necessary, so that a computer program read out therefrom is mounted into the storage section 308 as necessary.
In particular, according to an embodiment of the present disclosure, the parallel chain main chain transaction state synchronization method described in any of the above embodiments may be implemented as a computer software program. For example, embodiments of the present disclosure include a computer program product comprising a computer program tangibly embodied on a machine-readable medium, the computer program comprising program code for performing a parallel chain backbone transaction state synchronization method. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 309, and/or installed from the removable medium 311.
As yet another aspect, the present application also provides a computer-readable storage medium, which may be the computer-readable storage medium included in the apparatus of the above-described embodiment; or it may be a separate computer readable storage medium not incorporated into the device. The computer readable storage medium stores one or more programs for use by one or more processors in performing the parallel chain backbone transaction state synchronization methods described herein.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units or modules described in the embodiments of the present application may be implemented by software or hardware. The described units or modules may also be provided in a processor, for example, each unit may be a software program provided in a computer or a mobile intelligent device, or may be a separately configured hardware device. Wherein the designation of a unit or module does not in some way constitute a limitation of the unit or module itself.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the present application. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (8)
1. A parallel chain main chain transaction state synchronization method is applicable to an authorization node of a parallel chain, and is characterized by comprising the following steps:
synchronizing a plurality of parallel chain transactions from corresponding main chain nodes, and sequentially storing transaction hashes of cross chain transactions in the synchronized parallel chain transactions to generate a cross chain transaction hash sequence;
packaging and executing each parallel chain transaction and storing an execution state;
generating an execution state sequence of each cross-chain transaction according to the cross-chain transaction hash sequence and the execution state of each cross-chain transaction, and generating bitmap information according to the execution state sequence;
generating a check hash according to each cross-chain transaction;
generating a consensus transaction comprising the bitmap information and the check hash and sending the consensus transaction to a corresponding main chain node for verifying the check hash according to each cross-chain transaction: and if the verification is successful, performing parallel chain consensus, and obtaining the execution state of each cross-chain transaction according to the bitmap information passing the consensus after the parallel chain consensus is successful so as to process the main chain service logic corresponding to each cross-chain transaction.
2. The method of claim 1, wherein generating a verification hash from each of the cross-chain transactions comprises:
generating a check hash according to the cross-chain transaction hash sequence;
said validating said verification hash according to each said cross-chain transaction comprises:
and acquiring the transaction hashes of the cross-chain transactions in sequence, and verifying the check hashes according to the acquired transaction hashes.
3. The method of claim 1, wherein generating a verification hash from each of the cross-chain transactions comprises:
generating a check hash according to a plurality of fields of each cross-chain transaction;
said validating said verification hash according to each said cross-chain transaction comprises:
the fields of each cross-chain transaction are obtained in sequence, and the check hash is verified according to the obtained fields.
4. A parallel chain main chain transaction state synchronization method is suitable for main chain nodes corresponding to parallel chain authorization nodes, and is characterized by comprising the following steps:
receiving a consensus transaction sent by a corresponding parallel chain authorization node; the consensus transaction is generated by synchronizing a plurality of parallel chain transactions from the main chain node by the parallel chain authorization node, sequentially storing transaction hashes of all cross chain transactions in all the synchronized parallel chain transactions to generate cross chain transaction hash sequences, performing all the parallel chain transactions in a packaging mode and storing execution states, generating execution state sequences of all the cross chain transactions according to the cross chain transaction hash sequences and the execution states of all the cross chain transactions, generating bitmap information according to the execution state sequences, generating check hashes according to all the cross chain transactions, and generating the check hashes according to the bitmap information, the check hashes and the execution states of the packaged parallel chain blocks;
packaging and executing the consensus transaction, and verifying the check hash according to each cross-chain transaction:
and if the verification is successful, performing parallel chain consensus, and obtaining the execution state of each cross-chain transaction according to the bitmap information passing the consensus after the parallel chain consensus is successful so as to process the main chain service logic corresponding to each cross-chain transaction.
5. The method of claim 4, wherein generating a verification hash from each of the cross-chain transactions comprises:
generating a check hash according to the cross-chain transaction hash sequence;
said validating said verification hash according to each said cross-chain transaction comprises:
and acquiring the transaction hashes of the cross-chain transactions in sequence, and verifying the check hashes according to the acquired transaction hashes.
6. The method of claim 4, wherein generating a verification hash from each of the cross-chain transactions comprises:
generating a check hash according to a plurality of fields of each cross-chain transaction;
said validating said verification hash according to each said cross-chain transaction comprises:
the fields of each cross-chain transaction are obtained in sequence, and the check hash is verified according to the obtained fields.
7. A computer device, the device comprising:
one or more processors;
a memory for storing one or more programs,
the one or more programs, when executed by the one or more processors, cause the one or more processors to perform the method recited in any of claims 1-6.
8. A storage medium storing a computer program, characterized in that the program, when executed by a processor, implements the method according to any one of claims 1-6.
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| WO2019072273A2 (en) * | 2018-11-16 | 2019-04-18 | Alibaba Group Holding Limited | Cross-chain interactions using a domain name scheme in blockchain systems |
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