CN115529168B - Multi-point control encryption system based on robot and blockchain - Google Patents
Multi-point control encryption system based on robot and blockchain Download PDFInfo
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- CN115529168B CN115529168B CN202211127108.8A CN202211127108A CN115529168B CN 115529168 B CN115529168 B CN 115529168B CN 202211127108 A CN202211127108 A CN 202211127108A CN 115529168 B CN115529168 B CN 115529168B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention relates to the field of information technology, in particular to a multipoint control encryption system based on a robot and a blockchain, which is characterized in that an encryption module and a credit transmission module are arranged to encrypt instruction information sent by an instruction end, a characteristic comparison parameter K is calculated during encryption, different encryption algorithms are selected according to the comparison parameter K, ciphertext is generated and encrypted by using a private key, historical operation data of the credit transmission module is used for judging encryption grade, a ciphertext data set is divided and then sent to a verification unit according to a specific time interval, whether the time interval meets a standard is verified, and a decryption algorithm is selected according to corresponding historical operation data for decryption; after the control command information meets the standard, the control command information is verified, the characteristic attribute characteristic comparison parameters are constructed through the corresponding historical operation data of each robot, different encryption algorithms are selected for encryption based on the characteristic comparison parameters, and the unique encryption mode of each robot is constructed, so that the encryption is safer and more reliable, and the control command information is not easy to tamper and crack in the uploading process.
Description
Technical Field
The invention relates to the technical field of information, in particular to a multipoint control encryption system based on robots and blockchain.
Background
The block chain is a novel application mode of computer technologies such as distributed data storage, point-to-point transmission, a consensus mechanism, an encryption algorithm and the like, and the development and application of the block chain become the trend of informatization development due to the advantages of extremely high stability and reliability of the block chain data, and the unique decentralization and tamper resistance characteristics of the block chain are widely applied to the field of robots, so that traceability of control records can be realized through interactive control between the block chain and the robots, and tampering of control information can be prevented;
chinese patent publication No.: CN108600383a discloses a blockchain robot system and implementation method, the system includes a blockchain network and at least one robot, the blockchain network consensus-identifies data and status in transaction information and returns the data and status to the corresponding robot, and sends control instructions in the transaction information through consensus to the corresponding robot according to the request in the transaction information; the robot is used for sending the transaction information of the robot to the blockchain network, receiving the consensus result of the blockchain network on the transaction information, and running the action of the robot according to the control instruction in the transaction information which is sent by the blockchain network and passes through the consensus. The invention can lead the information to be very easy to trace back, difficult to be tampered and free from neutral management when the robot carries out communication and interaction, thereby greatly reducing the cost of communication and interaction management and greatly improving the safety, the credibility, the reliability and the autonomy of the communication and interaction of the robot.
However, the prior art has the following problems,
in the prior art, a related encryption method for uploading a control instruction to a blockchain node is lacked for a blockchain robot control system;
and the related encryption method in the prior art does not consider the unique attribute of the robots, for example, the historical operation data of the robots are different, and the related encryption method is unique, and the encryption method is not improved by utilizing the characteristics in the prior art.
Disclosure of Invention
In order to solve the above-mentioned problems, the present invention provides a robot and blockchain based multipoint manipulation encryption system, comprising:
the system comprises a block chain network, a plurality of data processing units and a data processing unit, wherein the block chain network comprises a plurality of block chain nodes, and each block chain node is provided with a verification unit;
the data storage module is connected with each robot to acquire historical operation data of the robot, wherein the historical operation data comprises total action duration of the robot and the times of the robot receiving operation instruction information;
the instruction end is used for sending out an operation instruction for controlling the robot;
the encryption module is connected with the instruction end and the data storage module, a plurality of encryption algorithms are stored in the encryption module, the encryption module receives operation instruction information which is sent by the instruction end and is used for controlling the robot, calculates a characteristic comparison parameter K according to historical operation data corresponding to the robot, selects a corresponding encryption algorithm according to the characteristic comparison parameter K, encrypts the operation instruction information to generate a ciphertext, encrypts the ciphertext by using a private key, generates a ciphertext data set and sends the ciphertext data set to the trust transmission module;
the trust transmission module is connected with the encryption module and the data storage module, receives the ciphertext data set sent by the encryption module, determines the encryption grade of the robot according to the historical operation data corresponding to the robot, judges whether the ciphertext data set needs to be segmented, and sends the segmented information fragments to the verification unit according to a preset time interval;
and the verification unit receives the information fragment, verifies whether the actual time interval for receiving the information fragment meets the interval requirement, verifies the ciphertext data set by using a public key, calculates a characteristic comparison parameter K according to historical operation data corresponding to the robot, decrypts the ciphertext by using a decryption algorithm, and stores the operation instruction information to a block chain node after decryption.
Further, the robot sends request information to the corresponding blockchain node to acquire the operation instruction information stored in the request information, the blockchain node sends the corresponding operation instruction information to the robot after verifying the request, the corresponding operation instruction information is executed, and the robot records the action time after receiving the operation instruction information and performing the action each time and sends the action time to the data storage module.
Further, the encryption module stores a plurality of encryption algorithms therein, each encryption algorithm establishes an association relationship with different data intervals, the instruction end sends operation instruction information to the encryption module, the encryption module calls historical operation data corresponding to the robot according to the robot corresponding to the operation instruction information, calculates a characteristic comparison parameter K according to the following formula,
wherein T represents the total action duration in the historical operation data corresponding to the robot, and n represents the times of receiving operation instruction information in the historical operation data corresponding to the robot;
the encryption module compares the characteristic comparison parameter K with a data interval, judges the data interval to which the characteristic comparison parameter K belongs, invokes an encryption algorithm with association relation with the data interval to encrypt the operation instruction information to form a ciphertext data set, encrypts the ciphertext data set through a private key and then sends the ciphertext data set to the time credit transmission module.
Further, the trust transmission module receives the ciphertext data set sent by the encryption module, invokes the historical operation data of the robot according to the robot corresponding to the ciphertext data set, calculates the coincidence degree parameter C corresponding to the historical operation data according to the following formula,
wherein T represents the total action time length in the corresponding historical operation data of the robot, deltaT represents the average value of the total action time length in the corresponding historical operation data of all robots, n represents the times of receiving operation instruction information in the corresponding historical operation data of the robot, deltan represents the average value of the times of receiving operation instruction information in the corresponding historical operation data of all robots;
the trust transmission module calculates the individual difference parameter G according to the following formula,
n represents the access quantity of the block chain node corresponding to the robot, N0 represents a preset access quantity comparison parameter, C represents the coincidence degree parameter corresponding to the historical operation data corresponding to the robot, and C0 represents a preset coincidence degree comparison parameter.
Further, the trust transmission module determines the encryption grade of the robot according to the individual difference parameter G, wherein,
when G is more than or equal to G2, the trust transmission module judges that the robot is of a first encryption level;
when G1 is less than or equal to G2, the trusted transmission module judges that the robot is of a second encryption level;
when G is smaller than G1, the trusted transmission module judges that the robot is at a third encryption level;
wherein G1 represents a first encryption contrast parameter, G2 represents a second encryption contrast parameter, and G1 is less than G2.
Further, the trust transmission module divides the ciphertext data set into a plurality of information fragments according to the encryption level of the robot, wherein:
if the robot is the first encryption level, dividing the ciphertext data set into C1 information fragments, and then sending the C1 information fragments to the nodes of the block chain according to a preset time interval;
if the robot is the second encryption level, dividing the ciphertext data set into C2 information fragments, and then sending the C2 information fragments to the nodes of the block chain according to a preset time interval;
if the robot is at the third encryption level, the ciphertext data set is directly sent to a corresponding node of the blockchain network;
wherein C1 represents a first segmentation number parameter, C2 represents a second segmentation number parameter, and C2 is larger than C1;
further, the trusted transmission module determines that the ciphertext is required to be divided into a plurality of fragments, calculates a time release interval parameter Ti according to the following formula,
wherein: alpha represents a preset conversion coefficient, E represents the information quantity of a single information fragment, E0 represents the information quantity comparison parameter of the preset information fragment, D represents a preset interval parameter, D takes a value of a preset first time interval parameter D1 after the ciphertext data set is divided into C1 information fragments, D takes a value of a preset second time interval parameter D2 after the ciphertext data set is divided into C2 information fragments, i represents the sequencing sequence number of the information fragments, i is more than or equal to 2, and T0 represents a preset standard interval parameter;
the trusted transmission module sequentially transmits the segmented information fragments to nodes of the blockchain network, and the transmission interval between the ith information fragment and the (i-1) th information fragment is Ti;
further, a verification unit is arranged in a node of the blockchain network, when the verification unit receives the information fragment, the actual time interval for receiving the information fragment is recorded, a coincidence degree parameter C is calculated according to the historical operation data of the robot corresponding to the information fragment, an individual difference parameter G is calculated to determine the encryption grade of the robot, whether the encryption ciphertext packet needs to be segmented according to the encryption grade is determined, a time release interval parameter Ti is calculated, whether the actual time interval for receiving the information fragment by the verification unit meets the interval requirement is determined,
if the actual time interval of each information fragment received by the verification unit is the same as the time release interval parameter Ti corresponding to each information fragment calculated by the verification unit, judging that the information fragment meets the time interval sending requirement, and verifying the ciphertext data set by using a public key;
if the actual time interval of each information segment received by the verification unit is different from the time release interval parameter Ti corresponding to each information segment calculated by the verification unit, the information segment is judged to not meet the time interval sending requirement, and verification is judged not to pass.
And if the received information of the verification unit is the ciphertext data set, directly verifying the ciphertext data set by using the public key.
Further, the verification unit verifies the ciphertext data set by using a public key, and verifies whether a private key corresponding to the ciphertext data set is matched with the public key; if the two types of data are not matched, judging that the verification is not passed;
if the parameters are matched, obtaining ciphertext after decrypting by a public key, calculating a characteristic comparison parameter K according to the historical operation data corresponding to the robot, selecting a corresponding data decryption algorithm according to the characteristic comparison parameter K,
the verification unit is internally provided with a plurality of decryption algorithms, and establishes association relations between each encryption algorithm and different data intervals, when the verification unit selects the decryption algorithm, the characteristic comparison parameter K is compared with the data intervals, the data interval to which the characteristic comparison parameter K belongs is judged, and the decryption algorithm which has association relations with the data interval is called to decrypt the ciphertext data set to obtain instruction information.
Further, the encryption module sends the ciphertext data set to the credit transmission module and simultaneously sends the information code of the corresponding robot, so that the credit transmission module calls the operation history information of the corresponding robot, and each robot corresponds to only one information code.
Compared with the prior art, the method has the advantages that the encryption module and the credit transmission module are arranged, the instruction information sent by the instruction end is encrypted, the historical operation data of the controlled robot is used as a benchmark during encryption, the characteristic comparison parameter K is calculated, different encryption algorithms are selected according to the comparison parameter K, ciphertext is generated, the ciphertext is encrypted by using a private key, the encrypted ciphertext is sent to the credit transmission module, the credit transmission module judges the encryption grade according to the historical operation data of the robot, the ciphertext data set is divided and then sent to the corresponding verification unit according to a specific time interval, and when verification, whether the time interval meets the standard is required to be verified, judgment is carried out according to the historical operation data of the robot, and a specific decryption algorithm is selected for decryption; after the control command information meets the standard, the control command information can pass verification, the special attribute characteristic comparison parameters of the control command information are constructed through the corresponding historical operation data of each robot, different encryption algorithms are selected for encryption based on the control command information, the special encryption mode of each robot is constructed, the encryption is safer and more reliable, and the control command information is not easy to tamper and crack in the uploading process.
In particular, the invention records the historical operation data of the robots by setting the data storage module, the encryption module calculates the characteristic comparison parameter K of the corresponding information in the historical operation data by taking the historical operation data as a reference when encrypting, in the practical situation, the historical operation data of each robot is different, compared with the traditional information code of a single product, the characteristic comparison parameter K can continuously change along with the time, therefore, the historical operation data of the robots can be characterized by the characteristic comparison parameter K, the characteristic comparison parameter K can change along with the change of the historical operation data, a specific encryption algorithm is selected for encryption by taking the characteristic comparison parameter K as a reference, and the encryption algorithm corresponding to each robot is continuously changed, so that the issued control instruction is not easy to crack, thereby avoiding the operation data from being cracked or tampered in the uploading process and improving the safety of the robot control system.
In particular, the invention characterizes the differences between the historical operation data corresponding to the robot and other outgoing stations and the access quantity of the blockchain nodes required to be uploaded by calculating the individual difference quantity G, and the risk of cracking the blockchain nodes with smaller differences is correspondingly increased if the differences are the same as the characteristic comparison parameters corresponding to other robots.
In particular, the invention divides the ciphertext data set according to the trust transmission module, and then sends the information fragments to the verification unit after the time interval is set by a specific calculation mode, when the calculation mode is set, the comparison parameter K is included, so that the time interval of the information fragments corresponding to each robot is different, the verification unit verifies whether the actual time interval is the same as the time interval when the robot is sent or not when the robot is received, if the actual time interval is different, the verification is not passed, so that the information is prevented from being intercepted and tampered, and double guarantee is carried out by combining the specific decryption mode, so that the running data is further prevented from being cracked or tampered in the uploading process, and the safety of a robot control system is improved.
In particular, the verification unit is arranged, the corresponding decryption algorithm is selected through the comparison parameter K corresponding to the historical operation data of the robot, the decryption algorithm is in a corresponding relation with the encryption algorithm, and the operation data is prevented from being cracked or tampered in the uploading process through triple verification of the time interval, the private key and the decryption algorithm, so that the safety of a control system of the robot is improved.
Drawings
FIG. 1 is a block diagram of a robot and blockchain based multipoint manipulation encryption system in accordance with an embodiment of the invention;
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, which is a block diagram of a robot-based and blockchain-based multi-point manipulation encryption system according to an embodiment of the invention, the robot-based and blockchain-based multi-point manipulation encryption system of the invention includes:
the system comprises a block chain network, a plurality of data processing units and a data processing unit, wherein the block chain network comprises a plurality of block chain nodes, and each block chain node is provided with a verification unit;
the data storage module is connected with each robot to acquire historical operation data of the robot, wherein the historical operation data comprises total action duration of the robot and the times of the robot receiving operation instruction information;
the instruction end is used for sending out an operation instruction for controlling the robot;
the encryption module is connected with the instruction end and the data storage module, a plurality of encryption algorithms are stored in the encryption module, the encryption module receives operation instruction information which is sent by the instruction end and is used for controlling the robot, calculates a characteristic comparison parameter K according to historical operation data corresponding to the robot, selects a corresponding encryption algorithm according to the characteristic comparison parameter K, encrypts the operation instruction information to generate a ciphertext, encrypts the ciphertext by using a private key, generates a ciphertext data set and sends the ciphertext data set to the trust transmission module;
the trust transmission module is connected with the encryption module and the data storage module, receives the ciphertext data set sent by the encryption module, determines the encryption grade of the robot according to the historical operation data corresponding to the robot, judges whether the ciphertext data set needs to be segmented, and sends the segmented information fragments to the verification unit according to a preset time interval;
and the verification unit receives the information fragment, verifies whether the actual time interval for receiving the information fragment meets the interval requirement, verifies the ciphertext data set by using a public key, calculates a characteristic comparison parameter K according to historical operation data corresponding to the robot, decrypts the ciphertext by using a decryption algorithm, and stores the operation instruction information to a block chain node after decryption.
Specifically, the present invention is not limited to the setting of the blockchain network, and the blockchain is a mature prior art, which is not described herein, and for various encryption algorithms, those skilled in the art can perform alternative design according to specific needs.
Specifically, the encryption mode of the public key and the private key is a conventional asymmetric encryption mode, which is a mature prior art in the field, and is not described herein.
Specifically, the robot sends request information to the corresponding blockchain node to acquire the operation instruction information stored in the request information, the blockchain node sends the corresponding operation instruction information to the robot after verifying the request, the corresponding operation instruction information is executed, and the robot records the action time after receiving the operation instruction information and performing the action each time and sends the action time to the data storage module.
Specifically, the information interaction between the robot and the blockchain can be verified by adopting a public-private key pair mode or other encryption modes.
Specifically, the encryption module stores a plurality of encryption algorithms therein, each encryption algorithm establishes an association relationship with different data intervals, the instruction end sends operation instruction information to the encryption module, the encryption module calls historical operation data corresponding to the robot according to the robot corresponding to the operation instruction information, calculates a characteristic comparison parameter K according to the following formula,
wherein T represents the total action duration in the historical operation data corresponding to the robot, and n represents the times of receiving operation instruction information in the historical operation data corresponding to the robot;
the encryption module compares the characteristic comparison parameter K with a data interval, judges the data interval to which the characteristic comparison parameter K belongs, invokes an encryption algorithm with association relation with the data interval to encrypt the operation instruction information to form a ciphertext data set, encrypts the ciphertext data set through a private key and then sends the ciphertext data set to the time credit transmission module.
According to the invention, the historical operation data of the robots are recorded by setting the data storage module, the encryption module calculates the characteristic comparison parameter K of corresponding information in the historical operation data by taking the historical operation data as a reference when encrypting, in actual conditions, the historical operation data of each robot are different, compared with the traditional information codes of single products, the characteristic comparison parameter K can continuously change along with the time, so that the historical operation data of the robots can be characterized by the characteristic comparison parameter K, the characteristic comparison parameter K can change along with the change of the historical operation data, a specific encryption algorithm is selected for encryption by taking the characteristic comparison parameter K as a reference, and the encryption algorithm corresponding to each robot is continuously changed, so that the issued control instruction is not easy to crack, so that the operation data is prevented from being cracked or tampered in the uploading process, and the safety of a robot control system is improved.
Specifically, the trust transmission module receives the ciphertext data set sent by the encryption module, invokes the historical operation data of the robot according to the robot corresponding to the ciphertext data set, calculates the coincidence degree parameter C corresponding to the historical operation data according to the following formula,
wherein T represents the total action time length in the corresponding historical operation data of the robot, deltaT represents the average value of the total action time length in the corresponding historical operation data of all robots, n represents the times of receiving operation instruction information in the corresponding historical operation data of the robot, deltan represents the average value of the times of receiving operation instruction information in the corresponding historical operation data of all robots;
the trust transmission module calculates the individual difference parameter G according to the following formula,
n represents the access quantity of the block chain node corresponding to the robot, N0 represents a preset access quantity comparison parameter, C represents the coincidence degree parameter corresponding to the historical operation data corresponding to the robot, and C0 represents a preset coincidence degree comparison parameter.
Specifically, the trust transmission module determines the encryption level of the robot according to the individual difference parameter G, wherein,
when G is more than or equal to G2, the trust transmission module judges that the robot is of a first encryption level;
when G1 is less than or equal to G2, the trusted transmission module judges that the robot is of a second encryption level;
when G is smaller than G1, the trusted transmission module judges that the robot is at a third encryption level;
wherein G1 represents a first encryption contrast parameter, G2 represents a second encryption contrast parameter, and G1 is less than G2.
Specifically, the trust transmission module divides the ciphertext data set into a plurality of information fragments according to the encryption level of the robot, wherein:
if the robot is the first encryption level, dividing the ciphertext data set into C1 information fragments, and then sending the C1 information fragments to the nodes of the block chain according to a preset time interval;
if the robot is the second encryption level, dividing the ciphertext data set into C2 information fragments, and then sending the C2 information fragments to the nodes of the block chain according to a preset time interval;
if the robot is at the third encryption level, the ciphertext data set is directly sent to a corresponding node of the blockchain network;
wherein C1 represents a first segmentation number parameter, C2 represents a second segmentation number parameter, and C2 is larger than C1;
specifically, the invention characterizes the differences between the historical operation data corresponding to the robot and other outgoing stations and the access quantity of the blockchain nodes required to be uploaded by calculating the individual difference quantity G, and the risk of cracking the blockchain nodes with smaller differences is correspondingly increased if the differences are the same as the characteristic comparison parameters corresponding to other robots.
Specifically, the trusted transmission module determines that the ciphertext is required to be divided into a plurality of fragments, calculates a time release interval parameter Ti according to the following formula,
wherein: alpha represents a preset conversion coefficient, E represents the information quantity of a single information fragment, E0 represents the information quantity comparison parameter of the preset information fragment, D represents a preset interval parameter, D takes a value of a preset first time interval parameter D1 after the ciphertext data set is divided into C1 information fragments, D takes a value of a preset second time interval parameter D2 after the ciphertext data set is divided into C2 information fragments, i represents the sequencing sequence number of the information fragments, i is more than or equal to 2, and T0 represents a preset standard interval parameter;
and the trust transmission module sequentially transmits the segmented information fragments to the nodes of the block chain network, wherein the transmission interval between the ith information fragment and the ith-1 information fragment is Ti.
Specifically, the invention divides the ciphertext data set according to the trust transmission module, sets a time interval through a specific calculation mode after division, then sends the information fragment to the verification unit, when the calculation mode is set, the comparison parameter K is included, so that the time interval of the information fragment corresponding to each robot is different, the verification unit verifies whether the actual time interval is the same as the time interval when sending or not when receiving, if not, the verification is not passed, and further, the information is prevented from being intercepted and tampered, and double guarantee is carried out by combining the specific decryption mode, so that the running data is further prevented from being cracked or tampered in the uploading process, and the safety of a robot control system is improved.
Specifically, a verification unit is arranged in a node of the blockchain network, when the verification unit receives the information fragment, the actual time interval for receiving the information fragment is recorded, the overlap ratio parameter C is calculated according to the historical operation data of the robot corresponding to the information fragment, the individual difference parameter G is calculated to determine the encryption grade of the robot, whether the encryption ciphertext packet needs to be divided according to the encryption grade is determined, the time release interval parameter Ti is calculated, and whether the actual time interval for receiving the information fragment by the verification unit meets the interval requirement is determined,
if the actual time interval of each information segment received by the verification unit is the same as the time release interval parameter Ti corresponding to each information segment calculated by the verification unit, determining that the information segment meets the time interval transmission requirement
And validating the ciphertext data set using a public key;
if the actual time interval of each information segment received by the verification unit is different from the time release interval parameter Ti corresponding to each information segment calculated by the verification unit, the information segment is judged to not meet the time interval sending requirement, and verification is judged not to pass.
And if the received information of the verification unit is the ciphertext data set, directly verifying the ciphertext data set by using the public key.
Specifically, the verification unit uses a public key to verify the ciphertext data set, and verifies whether a private key corresponding to the ciphertext data set is matched with the public key; if the two types of data are not matched, judging that the verification is not passed;
if the parameters are matched, obtaining ciphertext after decrypting by a public key, calculating a characteristic comparison parameter K according to the historical operation data corresponding to the robot, selecting a corresponding data decryption algorithm according to the characteristic comparison parameter K,
the verification unit is internally provided with a plurality of decryption algorithms, and establishes association relations between each encryption algorithm and different data intervals, when the verification unit selects the decryption algorithm, the characteristic comparison parameter K is compared with the data intervals, the data interval to which the characteristic comparison parameter K belongs is judged, and the decryption algorithm which has association relations with the data interval is called to decrypt the ciphertext data set to obtain instruction information.
Specifically, the encryption module sends the ciphertext data set to the credit transmission module and simultaneously sends the information code of the corresponding robot, so that the credit transmission module calls the operation history information of the corresponding robot, and each robot corresponds to only one information code.
Specifically, the invention does not limit the specific structure and the specific connection mode among the credit transmission module, the encryption module, the instruction end, the blockchain network and the data storage module, which are all in the prior art, and only the information transmission function among the modules and the data processing function corresponding to the modules can be satisfied, and the details are not repeated here.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
Claims (6)
1. A robot and blockchain based multipoint manipulation encryption system, comprising:
the block chain network comprises a plurality of block chain nodes, each block chain node is connected with the robot, and each block chain node is provided with a verification unit;
the data storage module is connected with each robot to acquire historical operation data of the robot, wherein the historical operation data comprises total action duration of the robot and the times of the robot receiving operation instructions;
the instruction end is used for sending out operation instruction information for controlling the robot;
the encryption module is connected with the instruction end and the data storage module, a plurality of encryption algorithms are stored in the encryption module, the encryption module receives operation instruction information which is sent by the instruction end and is used for controlling the robot, calculates a characteristic comparison parameter K according to historical operation data corresponding to the robot, selects a corresponding encryption algorithm according to the characteristic comparison parameter K, encrypts the operation instruction information to generate a ciphertext, encrypts the ciphertext by using a private key, generates a ciphertext data set and sends the ciphertext data set to the trust transmission module;
the trust transmission module is connected with the encryption module and the data storage module, receives the ciphertext data set sent by the encryption module, determines the encryption grade of the robot according to the historical operation data corresponding to the robot, judges whether the ciphertext data set needs to be segmented, and sends the segmented information fragments to the verification unit according to a preset time interval;
the verification unit receives the information fragment, verifies whether the actual time interval for receiving the information fragment meets the interval requirement, verifies the ciphertext data set by using a public key, calculates a characteristic comparison parameter K according to historical operation data corresponding to the robot, decrypts the ciphertext by using a decryption algorithm, and stores the operation instruction information to a block chain node after decryption;
the encryption module internally stores a plurality of encryption algorithms, each encryption algorithm establishes association relation with different data intervals, the instruction end sends operation instruction information to the encryption module, the encryption module calls historical operation data corresponding to the robot according to the robot corresponding to the operation instruction information, calculates characteristic comparison parameters K according to the following formula,
wherein T represents the total action duration in the historical operation data corresponding to the robot, and n represents the times of receiving operation instruction information in the historical operation data corresponding to the robot;
the encryption module compares the characteristic comparison parameter K with a data interval, judges the data interval to which the characteristic comparison parameter K belongs, invokes an encryption algorithm with association relation with the data interval to encrypt the operation instruction information to form a ciphertext data set, encrypts the ciphertext data set through a private key and then sends the ciphertext data set to the time credit transmission module;
the trust transmission module receives the ciphertext data set sent by the encryption module, invokes the historical operation data of the robot according to the robot corresponding to the ciphertext data set, calculates the coincidence degree parameter C corresponding to the historical operation data according to the following formula,
wherein T represents the total action time length in the corresponding historical operation data of the robot, deltaT represents the average value of the total action time length in the corresponding historical operation data of all robots, n represents the times of receiving operation instruction information in the corresponding historical operation data of the robot, deltan represents the average value of the times of receiving operation instruction information in the corresponding historical operation data of all robots;
the trust transmission module calculates the individual difference parameter G according to the following formula,
n represents the access quantity of the block chain node corresponding to the robot, N0 represents a preset access quantity comparison parameter, C represents a coincidence degree parameter corresponding to the historical operation data corresponding to the robot, and C0 represents a preset coincidence degree comparison parameter;
the trust transmission module determines the encryption grade of the robot according to the individual difference parameter G, wherein,
when G is more than or equal to G2, the trust transmission module judges that the robot is of a first encryption level;
when G1 is less than or equal to G2, the trusted transmission module judges that the robot is of a second encryption level;
when G is smaller than G1, the trusted transmission module judges that the robot is at a third encryption level;
wherein G1 represents a first encryption contrast parameter, G2 represents a second encryption contrast parameter, and G1 is less than G2;
the trust transmission module divides the ciphertext data set into a plurality of information fragments according to the encryption level of the robot, wherein:
if the robot is the first encryption level, dividing the ciphertext data set into C1 information fragments, and then sending the C1 information fragments to the nodes of the block chain according to a preset time interval;
if the robot is the second encryption level, dividing the ciphertext data set into C2 information fragments, and then sending the C2 information fragments to the nodes of the block chain according to a preset time interval;
if the robot is at the third encryption level, the ciphertext data set is directly sent to a corresponding node of the blockchain network;
wherein C1 represents a first segmentation number parameter, C2 represents a second segmentation number parameter, and C2 > C1.
2. The system according to claim 1, wherein the robot sends request information to a corresponding blockchain node to obtain operation instruction information stored therein, the blockchain node verifies the request and sends the corresponding operation instruction information to the robot, and executes the corresponding operation instruction, and the robot records the action duration after each time of receiving the operation instruction information and performing the action and sends the action duration to the data storage module.
3. The system of claim 1, wherein the trusted transmission module determines that the ciphertext is to be divided into a plurality of fragments and calculates the time release interval parameter Ti according to the following formula,
wherein: alpha represents a preset conversion coefficient, E represents the information quantity of a single information fragment, E0 represents the information quantity comparison parameter of the preset information fragment, D represents a preset interval parameter, D takes a value of a preset first time interval parameter D1 after the ciphertext data set is divided into C1 information fragments, D takes a value of a preset second time interval parameter D2 after the ciphertext data set is divided into C2 information fragments, i represents the sequencing sequence number of the information fragments, i is more than or equal to 2, and T0 represents a preset standard interval parameter;
and the trust transmission module sequentially transmits the segmented information fragments to the nodes of the block chain network, wherein the transmission interval between the ith information fragment and the ith-1 information fragment is Ti.
4. The robot and blockchain based multipoint manipulation encryption system according to claim 1, wherein a verification unit is provided in a node of the blockchain network, the verification unit records an actual time interval for receiving the information fragment when receiving the information fragment, calculates a coincidence ratio parameter C according to historical operation data of the robot corresponding to the information fragment, calculates an individual difference parameter G to determine an encryption level of the robot, determines whether the encryption ciphertext packet needs to be divided according to the encryption level, calculates a time release interval parameter Ti, and determines whether the actual time interval for receiving the information fragment by the verification unit satisfies an interval requirement,
if the actual time interval of each information fragment received by the verification unit is the same as the time release interval parameter Ti corresponding to each information fragment calculated by the verification unit, judging that the information fragment meets the time interval sending requirement, and verifying the ciphertext data set by using a public key;
if the actual time interval of each information segment received by the verification unit is different from the time release interval parameter Ti corresponding to each information segment calculated by the verification unit, judging that the information segment does not meet the time interval sending requirement, and judging that the verification is not passed;
and if the received information of the verification unit is the ciphertext data set, directly verifying the ciphertext data set by using the public key.
5. The robot-and-blockchain-based multipoint manipulation encryption system of claim 4, wherein the verification unit verifies the ciphertext data set using a public key to verify whether a private key corresponding to the ciphertext data set matches the public key; if the two types of data are not matched, judging that the verification is not passed;
if the parameters are matched, obtaining ciphertext after decrypting by a public key, calculating a characteristic comparison parameter K according to the historical operation data corresponding to the robot, selecting a corresponding data decryption algorithm according to the characteristic comparison parameter K,
the verification unit is internally provided with a plurality of decryption algorithms, and establishes association relations between each encryption algorithm and different data intervals, when the verification unit selects the decryption algorithm, the characteristic comparison parameter K is compared with the data intervals, the data interval to which the characteristic comparison parameter K belongs is judged, and the decryption algorithm which has association relations with the data interval is called to decrypt the ciphertext data set to obtain instruction information.
6. The robot and blockchain based multipoint control encryption system of claim 1, wherein the encryption module transmits the ciphertext data set to the trust transmission module while transmitting the information code of its corresponding robot.
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