CN115515129A - Block chain private data transmission system based on ad hoc network technology - Google Patents
Block chain private data transmission system based on ad hoc network technology Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/03—Protecting confidentiality, e.g. by encryption
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Abstract
The invention belongs to the technical field of data security, in particular to a block chain private data transmission system based on an ad hoc network technology, which comprises the following steps: the system comprises medical equipment, wherein private data transmission channels are established between the medical equipment based on a transmission platform, and the private data transmission channels are established between any two medical equipment; the transmission platform is established based on the block chain and comprises a data encryption layer, a network layer, a consensus layer, a contract layer and an application layer. A transmission platform established based on the block chain is decentralized, so that data tampering by external equipment is avoided, and the security of private data transmission is ensured; by adopting a data security algorithm based on the state password, the security of data transmission is further improved, and the data transmission mode is prevented from being tampered from the basic level; by adopting the independent signal communication frequency band, the external equipment is prevented from being accessed into the data transmission system.
Description
Technical Field
The invention relates to the technical field of data security, in particular to a block chain private data transmission system based on an ad hoc network technology.
Background
Data security is the security protection of the technology and management established and adopted by data processing systems, protecting computer hardware, software and data from being damaged, altered and revealed by accidental and malicious reasons. The security of a computer network can thus be understood as: by adopting various technologies and management measures, the network system can normally operate, thereby ensuring the availability, integrity and confidentiality of network data. Therefore, the purpose of establishing network security measures is to ensure that data transmitted and exchanged over the network is not subject to increase, modification, loss, leakage, and the like.
Medical equipment refers to instruments, devices, instruments, materials or other items used alone or in combination in the human body, and also includes the required software. The medical equipment is the most basic element of medical treatment, scientific research, teaching, institutions and clinical discipline work, namely professional medical equipment and household medical equipment.
When data transmission is carried out between medical equipment, as a common network is usually adopted, other equipment can also be accessed to the network, and hidden danger is caused to data safety.
Disclosure of Invention
The invention aims to provide a block chain private data transmission system based on an ad hoc network technology, so as to solve the problem that when data transmission is carried out between medical equipment in the background technology, because a common network is usually adopted, other equipment can also be accessed to the network, and hidden danger is caused to data safety.
In order to achieve the purpose, the invention provides the following technical scheme: a block chain private data transmission system based on an ad hoc network technology comprises:
the system comprises medical equipment, wherein private data transmission channels are established between the medical equipment based on a transmission platform, and the private data transmission channels are established between any two medical equipment;
the transmission platform is established based on a block chain, and comprises a data encryption layer, a network layer, a consensus layer, a contract layer and an application layer;
the data encryption layer is connected with a network, the network adopts an independent signal communication frequency band, a consensus protocol is established between the data encryption layer and the independent signal communication frequency band, the data encryption layer comprises a bottom layer data block, basic data and an algorithm, and the algorithm adopts a data security algorithm based on state encryption;
the network layer is used for information exchange among the medical devices;
the consensus layer comprises a consensus mechanism of a block chain network and a corresponding algorithm;
the contract layer programs a data security algorithm based on the state password, so that the data security algorithm based on the state password meets the requirement of private data transmission between the medical devices;
the application layer comprises application programs and application scenes for data transmission between the medical devices.
Preferably, the medical device sets a unique IP address, and the mode of adding the medical device to be added to the transmission system is as follows:
the medical equipment to be added searches for the IP address of the medical equipment which is closest to the IP address of the medical equipment which already exists in the transmission system based on the IP address of the medical equipment to be added, and establishes a data transmission relation with the medical equipment which is closest to the IP address of the medical equipment which already exists in the transmission system through the transmission platform based on the IP address of the medical equipment to be added;
at the moment, the medical equipment to be added is the added medical equipment, and the data transmission relation is established between the added medical equipment and other medical equipment in the transmission system;
synchronizing data between the joined medical device and the medical device that is closest to and already in the transmission system;
if the medical device which is closest to the transmission system and already exists in the transmission system synchronizes the data with other medical devices in the transmission system, the data stored in the medical device which is added is synchronized with the data of other medical devices in the transmission system.
Preferably, the medical device to be added to the transmission system requires consent from the closest medical device in the transmission system.
Preferably, the transport platform further comprises a stimulus layer located between the contract layer and the common layer, the stimulus layer comprising a mechanism for issuing and distributing economic stimuli.
Preferably, the medical device comprises a block random number, a timestamp, and public and private key data generated by an asymmetric encryption algorithm.
Compared with the prior art, the invention has the beneficial effects that:
1) A transmission platform established based on the block chain is decentralized, so that data tampering by external equipment is avoided, and the security of private data transmission is ensured;
2) By adopting a data security algorithm based on the state password, the security of data transmission is further improved, and the data transmission mode is prevented from being tampered from the basic level;
3) By adopting the independent signal communication frequency band, the external equipment is prevented from being accessed into the data transmission system.
Drawings
FIG. 1 is a network diagram of data transmission between medical devices according to the present invention;
fig. 2 is a system logic block diagram of the medical delivery platform of 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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The embodiment is as follows:
referring to fig. 1-2, the present invention provides a technical solution: a block chain private data transmission system based on an ad hoc network technology comprises:
the system comprises medical equipment, wherein private data transmission channels are established between the medical equipment based on a transmission platform, and the private data transmission channels are established between any two medical equipment;
the transmission platform is established based on a block chain, and comprises a data encryption layer, a network layer, a consensus layer, a contract layer and an application layer;
the data encryption layer is connected with a network, the network adopts an independent signal communication frequency band, a consensus protocol is established between the data encryption layer and the independent signal communication frequency band, the data encryption layer comprises a bottom layer data block, basic data and an algorithm, the algorithm adopts a data security algorithm based on the state encryption, and the traditional network and a block chain are from the layer to realize the transmission of the data in the center network. It is also responsible for solving the non-consensus problem between the two;
if the independent signal communication frequency band is based on a 5G network, the specific selection method is as follows:
determining the frequency band of the 5G network: the 5G network has 29 frequency bands, which are mainly divided into two frequency spectrum ranges, wherein the number of the frequency bands below 6GHz is 26 (collectively referred to as Sub6 GHz), and the number of the millimeter wave frequency bands is 3. Currently, the main domestic use is Sub6GHz, which comprises 7 frequency bands of n1/n3/n28/n41/n77/n78/n 79.
According to the current 3GPP division, 5G NR mainly comprises two frequency spectrum ranges, wherein the frequency range of 450MHz-6000MHz is FR1, namely commonly-known Sub-6GHz, and the frequency range of 24250MHz-52600MHz is FR2, namely commonly-known millimeter wave;
FR1 comprises 26 frequency bands such as n1/n2/n3, FR2 comprises three frequency bands of n257, n258 and mn260, and currently, 7 frequency bands of n1/n3/n28/n41/n77/n78/n79 are mainly used at home and abroad.
The frequency band of the domestic 5G network is mainly n78 frequency band used by China telecom and China Union, and n41 and n79 used by China Mobile, so that the 5G mobile phone released in the domestic market can be satisfied with the use of the frequency band supported by the frequency band.
And selecting the unused signal communication frequency band in the frequency band as the frequency band for data transmission of the medical equipment in the scheme.
The network layer is used for information exchange among medical equipment and comprises contents such as a P2P network, a propagation mechanism, a data verification mechanism and the like. The network layer can realize information exchange among all the nodes of the block chain. The distributed processing of the network is realized mainly by using the P2P technology, and the data is verified and spread. Essentially, the blockchain can still be referred to as a P2P network;
the consensus layer comprises a consensus mechanism of the block chain network and a corresponding algorithm, wherein the consensus mechanism comprises contents of a P2P network, a propagation mechanism, a data verification mechanism and the like. The network layer can realize information exchange among all nodes of the block chain. The distributed processing of the network is realized mainly by using the P2P technology, and the data is verified and spread. Essentially, the blockchain can still be referred to as a P2P network;
the contract layer programs a data security algorithm based on the state password, so that the data security algorithm based on the state password meets the requirement of private data transmission between the medical devices; mainly refers to an intelligent contract formed by using codes in a block chain. The block chain has the programmable characteristic, so that a user can write different codes according to the requirement of the user, and the basis of the block chain is from a contract layer. Meanwhile, the existence of the intelligent contract is also the establishment of a trust key point in the blockchain under the condition of no guarantee. The block chain has the characteristics of non-tampering and transparent disclosure, so that the terms in the intelligent contract become real and credible, and when the contract terms are met, the intelligent contract can be automatically executed.
The national password is a domestic password algorithm identified by the national password administration. There are mainly SM1, SM2, SM3, SM4. The key length and the packet length are both 128 bits.
SM1 is symmetric encryption. The encryption strength is comparable to AES. The algorithm is not disclosed, and when the algorithm is called, the algorithm needs to be called through an interface of the encryption chip.
SM2 is asymmetric encryption, based on ECC. The algorithm is disclosed. Since the algorithm is based on ECC, the signature speed and the key generation speed are faster than RSA. The security strength of the ECC 256 bits (the SM2 adopts one of the ECC 256 bits) is higher than that of the RSA 2048 bits, but the operation speed is faster than that of the RSA.
SM3 message digest. This can be understood using MD5 as a comparison. The algorithm is disclosed. The check result is 256 bits.
Packet data algorithm of SM4 wireless local area network standard. Symmetric encryption, key length and packet length are 128 bits.
Since the size of the encrypted and decrypted packets of SM1 and SM4 is 128 bits, when encrypting and decrypting a message, if the message length is too long, the packet needs to be performed, and if the message length is not sufficient, the padding needs to be performed.
The application layer comprises application programs and application scenes for data transmission between the medical devices. And the system is responsible for tightly combining the block chain with real life. Such as utilizing blockchains to source a product supply chain, decentralized social interaction, distributed data storage, blockchain games, and the like. The block chain has a wide application scene by virtue of its powerful functional advantages.
Preferably, the medical device sets a unique IP address, and the mode of adding the medical device to be added to the transmission system is as follows:
the medical equipment to be added searches for the IP address of the medical equipment which is closest to the IP address of the medical equipment which already exists in the transmission system based on the IP address of the medical equipment to be added, and establishes a data transmission relation with the medical equipment which is closest to the IP address of the medical equipment which already exists in the transmission system through the transmission platform based on the IP address of the medical equipment to be added;
at the moment, the medical equipment to be added is the added medical equipment, and the data transmission relation is established between the added medical equipment and other medical equipment in the transmission system;
synchronizing data between the joined medical device and the medical device that is closest to and already in the transmission system;
if the medical device which is closest to the transmission system and already exists in the transmission system synchronizes data with other medical devices in the transmission system, the data stored in the medical device which is added is synchronized with the data of other medical devices in the transmission system.
Preferably, the joining of the medical device to be joined to the delivery system requires consent from the closest medical device in the delivery system.
Preferably, the transport platform further comprises a stimulus layer located between the contract layer and the common layer, the stimulus layer comprising an economic stimulus issuing and distributing mechanism. Mainly including the distribution and distribution mechanisms of economic incentives. For blockchain federation chains or private chains, the incentive layer may not be needed because all of their nodes may be organized for authentication by an enterprise or organization, and all nodes may autonomously maintain stability and security of the blockchain network under the operation of the enterprise or organization. But for public links, the incentive layer is necessary because the nodes of the public link come from all over the world and the nodes can freely join and leave. It is not practical for any one enterprise to want these nodes to act spontaneously as federation chain nodes. The incentive mechanism continuously gives rewards to the nodes contributing in the blockchain network, and stimulates the nodes to provide more resources in aspects of computing power, storage space and the like.
Preferably, the medical device comprises a block random number, a time stamp and public and private key data generated by an asymmetric encryption algorithm.
The data transmission system is established by directly passing through the transmission platform among the medical devices, each medical device is regarded as a node of the data transmission system, the data among the nodes are synchronous, and the data stored in each node are the same, so that the accessed devices cannot modify the data of all the medical devices, and the safety of data transmission is ensured.
By adopting the data security algorithm based on the state cipher, the homogenization brought by general algorithms (such as POW, POS and DPOS) is avoided, and the cracking difficulty is increased for the intruder.
The network adopts independent signal communication frequency bands, and a plurality of externally accessed intelligent devices are isolated from a transmission layer.
While there have been shown and described what are at present considered to be the basic principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other embodiments without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A block chain privacy data transmission system based on an ad hoc network technology is characterized by comprising:
the system comprises medical equipment, wherein private data transmission channels are established between the medical equipment based on a transmission platform, and the private data transmission channels are established between any two medical equipment;
the transmission platform is established based on a block chain, and comprises a data encryption layer, a network layer, a consensus layer, a contract layer and an application layer;
the data encryption layer is connected with a network, the network adopts an independent signal communication frequency band, a consensus protocol is established between the data encryption layer and the independent signal communication frequency band, the data encryption layer comprises a bottom layer data block, basic data and an algorithm, and the algorithm adopts a data security algorithm based on state encryption;
the network layer is used for information exchange among the medical devices;
the consensus layer comprises a consensus mechanism of a block chain network and a corresponding algorithm.
The contract layer programs a data security algorithm based on the state password, so that the data security algorithm based on the state password meets the requirement of private data transmission between the medical devices;
the application layer comprises application programs and application scenes for data transmission between the medical devices.
2. The ad-hoc network technology based block chain private data transmission system according to claim 1, wherein: the medical equipment sets a unique IP address, and the mode of adding the medical equipment to be added into the transmission system is as follows:
the medical equipment to be added searches for the IP address of the medical equipment which is closest to the IP address of the medical equipment which already exists in the transmission system based on the IP address of the medical equipment to be added, and establishes a data transmission relation with the medical equipment which is closest to the IP address of the medical equipment which already exists in the transmission system through the transmission platform based on the IP address of the medical equipment to be added;
at the moment, the medical equipment to be added is the added medical equipment, and the data transmission relation is established between the added medical equipment and other medical equipment in the transmission system;
synchronizing data between the joined medical device and the medical device that is closest to and already in the transmission system;
if the medical device which is closest to the transmission system and already exists in the transmission system synchronizes data with other medical devices in the transmission system, the data stored in the medical device which is added is synchronized with the data of other medical devices in the transmission system.
3. The ad hoc network technology-based blockchain private data transmission system according to claim 2, wherein: the joining of the medical device to be joined to the transmission system requires consent from the closest medical device in the transmission system.
4. The ad-hoc network technology based block chain private data transmission system according to claim 1, wherein: the transport platform also includes a motivational layer located between the contract layer and the common contract layer, the motivational layer including a mechanism for issuing and distributing economic incentives.
5. The ad-hoc network technology based block chain private data transmission system according to claim 1, wherein: the medical equipment comprises a block random number, a time stamp and public and private key data generated by an asymmetric encryption algorithm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117579660A (en) * | 2023-11-24 | 2024-02-20 | 江苏启航开创软件有限公司 | Regional Internet information distributed communication method based on home doctors |
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| CN117579660A (en) * | 2023-11-24 | 2024-02-20 | 江苏启航开创软件有限公司 | Regional Internet information distributed communication method based on home doctors |
| CN117579660B (en) * | 2023-11-24 | 2024-05-14 | 江苏启航开创软件有限公司 | Regional Internet information distributed communication method based on home doctors |
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