CN110460444B - Space-time credible block chain generation method and device - Google Patents
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Abstract
The invention discloses a space-time credible block chain generation method.A node sends an authentication request to a CA authentication center, the CA authentication center respectively authenticates the time and the space of the node, and the node after both the authentication are successful can be added into a block chain system; when the node generates the block chain transaction information, adding the time and position information of the node into the transaction information; the transaction information is recorded in a transaction block of the current accounting period; and the accounting node calculates the transaction information in the transaction block, takes the time information of the accounting node as a timestamp, and adds the position information as a position stamp into the transaction block. The invention provides a uniform time and space reference for a block chain system, records the time information and the position information of each transaction in the transaction information as necessary attributes, and records the time information and the position information of the accounting node in a transaction block as a time stamp and a position stamp respectively.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to a method and equipment for generating a space-time credible block chain.
Background
The blockchain is one of the most revolutionary emerging technologies at present, and is a combined technology integrating multiple technologies such as P2P dynamic networking, cryptography, a consensus mechanism and the like. Due to the characteristics of decentralization, distributed storage, traceability, non-falsification and the like, the application fields are increasing, such as the financial field, the government supervision field, the internet of things field and the like.
The block chain is based on a chain formed by blocks, each block is counted in the chain by nodes in the chain according to a consensus mechanism, and the core of the block is completely operated according to the consensus mechanism under the condition that no central control exists and no mutual trust exists between each node. Each block constituting an individual as a block chain contains time stamp information as a time reference not only between blocks but also as a time at which the block is authenticated and entered into the block chain. However, the current timestamp reference is based on the system time of the node, and there is no uniform time reference, and as the application field of the blockchain expands, the time information and the location information of each transaction should be used as necessary attributes, however, the current blockchain node has no source of uniform time information and location information.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a spatio-temporal credible block chain generation method, which provides a uniform time and space reference for a block chain system, records the time information and the position information of each transaction as necessary attributes in transaction information, and records the time information and the position information of a billing node as a time stamp and a position stamp in a transaction block respectively.
In order to achieve the purpose, the invention adopts the following technical scheme that:
a spatio-temporal credible block chain generation method comprises the following steps:
s1, the node, namely the blockchain node sends an authentication request to a CA authentication center, the CA authentication center respectively authenticates the time and the space of the node, after the time and the space are successfully authenticated, the CA authentication center sends CA authentication passing information to the node, and the node can be added into the blockchain system after obtaining the CA authentication passing information;
s2, when the node generates the block chain transaction information, adding the time information and the space position information of the node into the transaction information;
s3, the transaction information is recorded in the transaction block of the current accounting period and is propagated among the nodes through the P2P network;
s4, when the current accounting period reaches the accounting time, each node conducts transaction verification on the transaction block to compete for accounting right, the node which completes the transaction verification firstly serves as an accounting node, and the accounting node adds the time information and the position information of the accounting node into the transaction block as a time stamp and a position stamp respectively;
s5, the transaction verification result of the accounting node is transmitted among the nodes through the P2P network, and the nodes verify the transaction verification result of the accounting node;
and S6, after the verification is passed, the accounting node records the transaction information in the transaction block to form an ordered block chain ordered according to the time stamp.
In step S1, the CA certificate authority is a mechanism with detection capability or a network server with detection capability; the CA authentication center holds a time reference and a position reference;
the specific mode of the time authentication is as follows: comparing the time of the node with a time reference, and if the time error is within a set time deviation range, indicating that the time authentication of the node is successful;
the specific mode of the space authentication is as follows: comparing the position of the node with a position reference, and if the position error is within a set position deviation range, indicating that the position authentication of the node is successful;
and the time data and the space data of the nodes are both derived from a global satellite positioning navigation system.
In step S1, the time error and the position error are obtained by using a closed loop test method or a wireless signal source test method.
In step S4, the accounting node automatically adds the timestamp and the location stamp after the transaction verification is successful, and the timestamp and the location stamp cannot be modified by the node itself.
The invention also provides a device applied to the block chain generation method, the device is a node device, and the node device is provided with:
the satellite signal receiving module is used for receiving time data and space data of a global satellite positioning navigation system;
the signal processing module is used for respectively resolving time data and space data of the global satellite positioning navigation system to generate local time data and local space data;
the time service module generates time information according to the local time data and provides the time information for the communication module and the accounting module;
the position service module generates position information according to the local space data and provides the position information for the communication module and the accounting module;
the communication module is used for realizing the communication function between the node and other nodes;
the accounting module is used for realizing related functions of block chain accounting, including functions of account book storage, Hash calculation, transaction verification and calculation result verification;
the interface module provides an interface for external access; and the CA authentication center acquires the time information and the position information of the node through the interface module.
The node equipment is also provided with a timekeeping module and an inertial navigation module; when the time-space data of the global satellite positioning navigation system fails to be received, the time keeping module and the inertial navigation module are respectively used for keeping the output of the time information and the position information of the node equipment.
The global satellite positioning navigation system comprises: beidou satellite system, GPS, GLONASS, Galileo;
the satellite receiving module comprises an antenna unit and a radio frequency receiving unit;
the signals received by the satellite receiving module are one or more of Beidou satellite signals, GPS satellite signals, GLONASS satellite signals and Galileo satellite signals.
The invention has the advantages that:
(1) the invention provides a unified time reference for the block chain, realizes the time synchronization among all nodes, and adds the unified time information into the block as a time stamp, thereby ensuring the time sequence among the blocks.
(2) According to the invention, on the basis of unified time reference and space reference, the time information and the position information of each transaction are recorded in the transaction information, so that the transaction information can be conveniently and quickly indexed according to the position and the time, all transactions in a certain area within a certain time period can be quickly found out, and the application scene of a block chain is enriched.
(3) The time precision in the invention reaches nanosecond level, the common problem of double flowers of the block chain, namely the problem of two accounting nodes generated at the same time, can be avoided, and the phenomenon of double flowers can be greatly reduced by high-precision time information.
Drawings
Fig. 1 is a diagram of a communication system architecture of the present invention.
FIG. 2 is a flowchart of a method for spatio-temporal trusted blockchain generation according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The method for generating the spatio-temporal credible block chain can be applied to a communication system shown in figure 1.
As shown in fig. 1, the communication system includes a global navigation satellite system, a blockchain P2P network, and a CA certification center. Wherein,
the P2P network includes various communication modes, such as wireless mobile communication, wired network communication, satellite communication, etc.
The CA authentication center is a mechanism with detection capability or a network server providing corresponding detection capability; the CA authentication center holds a time reference and a position reference; the location is described in terms of longitude data, latitude data, and elevation data.
As shown in fig. 2, a spatio-temporal credible block chain generation method of the present invention includes the following steps:
s1, the node, namely the block chain node sends an authentication request to the CA authentication center, the CA authentication center respectively authenticates the time information and the space information of the node,
whether the time information of the node is consistent with the time reference of the CA authentication center or not is authenticated, if the time error of the node is within the set time deviation range, the node is regarded as consistent, and the time authentication is passed;
whether the position information of the node is consistent with the position reference of the CA authentication center or not is authenticated, if the position error of the node is within the set position deviation range, the node is regarded as consistent, and the position authentication is passed;
if the time and the position are authenticated, the CA authentication center sends CA authentication passing information to the node, and the node can be added into the block chain system after obtaining the CA authentication passing information; otherwise, the CA authentication center does not send CA authentication passing information to the node, and the node cannot acquire the CA authentication passing information and cannot join the block chain system.
And acquiring the time error and the position error by adopting a closed-loop test method or a wireless signal source test method.
S2, when the node generates the transaction information, adding the time information and the space position information of the node into the transaction information; the time and position information of the node is the time and position information of the transaction.
And S3, the transaction information is counted in the transaction block of the current accounting period, and the transaction information is propagated among the nodes through the P2P network.
S4, when the current accounting period reaches the accounting time, each node conducts transaction verification on the transaction block to compete for accounting right, the node which completes the transaction verification firstly serves as an accounting node, and the accounting node adds the time information and the position information of the accounting node into the transaction block as a time stamp and a position stamp respectively; and the accounting node automatically adds the time stamp and the position stamp after the transaction verification is successful, and the time stamp and the position stamp can not be modified by the node.
The transaction verification is realized by adopting complex hash calculation, and firstly, the node which accords with the hash value is solved to be used as an accounting node, and the specific mode refers to the prior art.
And S5, the transaction verification result of the accounting node, namely the complex hash calculation result, is propagated among the nodes through the P2P network, and each node verifies the transaction verification result of the accounting node.
The specific manner of said verification is referred to in the prior art.
And S6, after the verification is passed, the accounting node records the transaction in the transaction block to form an ordered block chain ordered according to the time stamp.
Based on the space-time credible block chain generation method provided by the invention, the node equipment is provided with:
the satellite signal receiving module is used for receiving time and space data, namely instant space data of the global satellite positioning navigation system; the satellite receiving module comprises an antenna unit and a radio frequency receiving unit; the global satellite positioning navigation system comprises a Beidou satellite system, a GPS, GLONASS and Galileo; the signals received by the satellite receiving module are one or more of Beidou satellite signals, GPS satellite signals, GLONASS satellite signals and Galileo satellite signals.
And the signal processing module is used for resolving the space-time data of the global satellite positioning navigation system to generate local time data and local space data, namely the space-time data of the node.
And the communication module is used for realizing the communication function between the node and other nodes.
And the accounting module is used for realizing related functions of block chain accounting, including functions of account book storage, Hash calculation, transaction verification and verification.
And the time service module generates time information according to the local time data after the signal processing and provides the time information for the communication module and the accounting module.
And the position service module generates position information according to the local space data after the signal processing and provides the position information for the communication module and the accounting module.
The interface module provides an interface for external access; and the CA authentication center acquires the space-time data of the node through the interface module.
The system comprises a time keeping module and an inertial navigation module, wherein when the time-space data of the global satellite positioning navigation system fails to be received, the time keeping module and the inertial navigation module are respectively used for keeping the output of the time information and the position information of the node equipment.
And the power supply module is used for supplying power to each module of the node equipment.
The invention is not to be considered as limited to the specific embodiments shown and described, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A spatio-temporal trusted block chain generation method, comprising the steps of:
s1, the node, namely the blockchain node sends an authentication request to a CA authentication center, the CA authentication center respectively authenticates the time and the space of the node, after the time and the space are successfully authenticated, the CA authentication center sends CA authentication passing information to the node, and the node can be added into the blockchain system after obtaining the CA authentication passing information;
s2, when the node generates the block chain transaction information, adding the time information and the space position information of the node into the transaction information;
s3, the transaction information is recorded in the transaction block of the current accounting period and is propagated among the nodes through the P2P network;
s4, when the current accounting period reaches the accounting time, each node conducts transaction verification on the transaction block to compete for accounting right, the node which completes the transaction verification firstly serves as an accounting node, and the accounting node adds the time information and the position information of the accounting node into the transaction block as a time stamp and a position stamp respectively;
s5, the transaction verification result of the accounting node is transmitted among the nodes through the P2P network, and the nodes verify the transaction verification result of the accounting node;
s6, after the verification is passed, the accounting node records the transaction information in the transaction block to form an ordered block chain ordered according to the time stamps;
the specific way of time authentication for the node is as follows: whether the time information of the node is consistent with the time reference of the CA authentication center or not is authenticated, if the time error of the node is within the set time deviation range, the node is regarded as consistent, and the time authentication is passed;
the specific way of spatial authentication for the node is as follows: and authenticating whether the position information of the node is consistent with the position reference of the CA authentication center or not, and if the position error of the node is within the set position deviation range, determining that the node is consistent and indicating that the position authentication is passed.
2. The spatio-temporal trusted blockchain generation method according to claim 1, wherein in step S1, the CA certificate authority is a mechanism with detection capability or a network server with detection capability; the CA authentication center holds a time reference and a position reference;
the specific mode of the time authentication is as follows: comparing the time of the node with a time reference, and if the time error is within a set time deviation range, indicating that the time authentication of the node is successful;
the specific mode of the space authentication is as follows: comparing the position of the node with a position reference, and if the position error is within a set position deviation range, indicating that the position authentication of the node is successful;
and the time data and the space data of the nodes are both derived from a global satellite positioning navigation system.
3. A spatio-temporal credible block chain generating method as claimed in claim 2, wherein in step S1, the time error and the position error are obtained by using a closed loop test method or a wireless signal source test method.
4. A spatio-temporal trusted blockchain generation method according to claim 1, wherein in step S4, the accounting node automatically adds the timestamp and the location stamp after the transaction is successfully verified, and the timestamp and the location stamp cannot be modified by the node itself.
5. An apparatus applied to the block chain generating method of claim 1, wherein the apparatus is a node apparatus, and the node apparatus is provided with:
the satellite signal receiving module is used for receiving time data and space data of a global satellite positioning navigation system;
the signal processing module is used for respectively resolving time data and space data of the global satellite positioning navigation system to generate local time data and local space data;
the time service module generates time information according to the local time data and provides the time information for the communication module and the accounting module;
the position service module generates position information according to the local space data and provides the position information for the communication module and the accounting module;
the communication module is used for realizing the communication function between the node and other nodes;
the accounting module is used for realizing related functions of block chain accounting, including functions of account book storage, Hash calculation, transaction verification and calculation result verification; the interface module provides an interface for external access; and the CA authentication center acquires the time information and the position information of the node through the interface module.
6. The device according to claim 5, wherein a time keeping module and an inertial navigation module are further arranged on the device, namely the node device; when the time-space data of the global satellite positioning navigation system fails to be received, the time keeping module and the inertial navigation module are respectively used for keeping the output of the time information and the position information of the node equipment.
7. The apparatus of claim 5, wherein the global satellite positioning navigation system comprises: beidou satellite system, GPS, GLONASS, Galileo;
the satellite signal receiving module comprises an antenna unit and a radio frequency receiving unit;
the signals received by the satellite signal receiving module are one or more of Beidou satellite signals, GPS satellite signals, GLONASS satellite signals and Galileo satellite signals.
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| CN111191283B (en) * | 2019-12-27 | 2023-02-07 | 广西大学 | Beidou positioning information security encryption method and device based on alliance block chain |
| CN111586029B (en) * | 2020-04-30 | 2022-02-01 | 北京数码汇博科技有限公司 | Device and method for authenticating block chain data by using space-time information |
| CN112020018B (en) * | 2020-08-26 | 2022-05-17 | 山东浪潮科学研究院有限公司 | Block chain accounting group generation method, consensus method and block chain system |
| CN112256798A (en) * | 2020-11-03 | 2021-01-22 | 公安部第三研究所 | Block chain system and method for realizing decentralized block chain data structure and avoiding data bifurcation based on introduction of space coordinates |
| CN112688728B (en) * | 2020-12-17 | 2022-02-08 | 西安电子科技大学 | Inter-satellite authentication method, system, medium, equipment, terminal and application |
| CN117574875B (en) * | 2024-01-08 | 2024-04-26 | 成都愿景仿视科技有限公司 | Natural language understanding modeling method |
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