CN115565277B - Electronic accompanying management method, device and storage medium based on blockchain - Google Patents

Electronic accompanying management method, device and storage medium based on blockchain Download PDF

Info

Publication number
CN115565277B
CN115565277B CN202211019570.6A CN202211019570A CN115565277B CN 115565277 B CN115565277 B CN 115565277B CN 202211019570 A CN202211019570 A CN 202211019570A CN 115565277 B CN115565277 B CN 115565277B
Authority
CN
China
Prior art keywords
user
accompanying
hash value
dapp
application
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202211019570.6A
Other languages
Chinese (zh)
Other versions
CN115565277A (en
Inventor
帅乐耀
徐嘉隆
侯玉
温声凤
居斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Wowjoy Information Technology Co ltd
Original Assignee
Hangzhou Wowjoy Information Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Wowjoy Information Technology Co ltd filed Critical Hangzhou Wowjoy Information Technology Co ltd
Priority to CN202211019570.6A priority Critical patent/CN115565277B/en
Publication of CN115565277A publication Critical patent/CN115565277A/en
Application granted granted Critical
Publication of CN115565277B publication Critical patent/CN115565277B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/22—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder
    • G07C9/23—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder by means of a password
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/29—Individual registration on entry or exit involving the use of a pass the pass containing active electronic elements, e.g. smartcards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3226—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using a predetermined code, e.g. password, passphrase or PIN
    • H04L9/3228—One-time or temporary data, i.e. information which is sent for every authentication or authorization, e.g. one-time-password, one-time-token or one-time-key
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Medical Treatment And Welfare Office Work (AREA)

Abstract

The invention discloses an electronic accompanying management method, device and storage medium based on a blockchain; wherein the method comprises the following steps: judging whether the user applying for electronic accompanying is a defined special crowd or not; if not, receiving the input user information, generating a first hash value based on the received user information, and broadcasting the first hash value to a block chain; storing the first hash value in the blockchain to a distributed ledger of each node; acquiring patient hospital data corresponding to an electronic accompanying user; generating a second hash value based on the patient hospital data, and judging whether an application rule preset by the intelligent contract is met or not; if not, performing rejection processing, broadcasting rejection information to a block chain, and pushing the rejection information; if yes, performing passing processing and broadcasting to a block chain; and generating the accompanying card and issuing the accompanying card. In the embodiment of the invention, the related information of the accompanying and the tamper resistance of all flow records are realized, and the reliable and traceable data are ensured.

Description

Electronic accompanying management method, device and storage medium based on blockchain
Technical Field
The present invention relates to the field of data processing technologies, and in particular, to a blockchain-based electronic accompanying management method, device, and storage medium.
Background
At present, most hospitals are still mainly used for managing the accompanying person in the disease area in a mode of issuing traditional paper accompanying cards, the paper accompanying cards can be borrowed at will, and the flowing person in the disease area is not provided with a complete identity verification system, so that the hospital is insufficient in control over the flowing person in the disease area, and how to establish a complete identity verification system for the accompanying person in the disease area by utilizing an informatization means becomes urgent.
In the prior art, the control of the number of the accompanying persons cannot be realized, and the uniqueness verification of the data such as the detection result of the accompanying persons cannot be performed; if the information is submitted with errors, no processing mechanism exists in the follow-up process, and no complete tracing mechanism exists; for special people, such as old people and children, people inconvenient to use mobile phones or small programs cannot meet the requirements of claims; meanwhile, the application and cancellation processes lack automatic auditing and processing mechanisms, and too much workload is added to the management staff of the hospital.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a block chain-based electronic accompanying management method, a block chain-based electronic accompanying management device and a block chain-based electronic accompanying storage medium, so that the related information of accompanying is not tampered, the reliability and traceability of data are ensured, meanwhile, the data do not need manual auditing, and special crowds can apply.
In order to solve the above technical problems, an embodiment of the present invention provides a blockchain-based electronic accompanying management method, including:
judging whether an application electronic accompanying user is a defined special crowd, wherein the special crowd is a user crowd incapable of using an intelligent terminal;
if not, the medical DAPP end receives user information input by the user DAPP end based on the application electronic accompanying user, generates a first hash value based on the received user information and broadcasts the first hash value to a block chain;
storing the first hash value in the blockchain to a distributed ledger of each node, the nodes including full nodes and light nodes;
calling an API (application program interface) of a hospital accompanying background management system based on the intelligent contract program by the medical care DAPP end to obtain patient hospital data corresponding to the application electronic accompanying user synchronized by an hospital HIS (in-hospital HIS) system;
generating a second hash value based on the patient hospital data, comparing the second hash value with the first hash value, and judging whether an application rule preset by an intelligent contract is met or not;
if the application rule preset by the intelligent contract is not met, performing rejection processing on the application of the application electronic accompanying user, broadcasting rejection information into the blockchain, and pushing the rejection information to the user DAPP terminal based on the user label corresponding to the application electronic accompanying user;
If the application rule preset by the intelligent contract is met, carrying out passing processing on the application of the application electronic accompanying user, and broadcasting passing information to the block chain;
and the medical care DAPP end generates a accompany based on the passing information, and issues the accompany to the user DAPP end based on a user tag corresponding to the user applying for electronic accompany.
Optionally, the method further comprises:
when the application electronic accompanying user is a defined special crowd, the medical care user inputs user information of the application electronic accompanying user corresponding to the special crowd at the medical care DAPP end, and the medical care DAPP end generates a first hash value based on the input user information and broadcasts the first hash value to a blockchain.
Optionally, the user information includes: the method comprises the following steps of a name of a person to be attended, an identity card number of the person to be attended, a mobile phone number of the person to be attended, a nucleic acid detection report of the person to be attended, a name corresponding to a patient and an identity card number corresponding to the patient.
Optionally, the generating the first hash value based on the entered user information and broadcasting the first hash value into the blockchain includes:
the intelligent contract program on the Ethernet virtual machine deployed on the medical DAPP end encrypts the user information by utilizing a one-way encrypted SHA256 hash function to obtain a first encryption result;
Encrypting the first encryption result by using a one-way encrypted RipeMD160 hash function to obtain a first hash value;
the obtained first hash value is broadcast into the block chain based on the broadcast form, wherein the block chain is a private chain.
Optionally, the encrypting the user information by using the one-way encrypted SHA256 hash function includes:
performing bit filling processing on the user information based on the SHA256 hash function to form bit filled user information, wherein the length of the bit filled user information is a multiple of 512 bits;
and carrying out block processing on the user information subjected to bit filling by taking 512 bits as a unit, and carrying out encryption processing on message blocks formed by the blocks one by one.
Optionally, the encrypting the first encrypted result with the one-way encrypted rivemd 160 hash function includes:
dividing the first encryption result into multiple blocks of 512, wherein each multiple block is 16 words;
and 5 times of blocks are input into the RipeMD160 hash function for hash operation each time, and an operation result is converted into a hexadecimal character string to obtain a first hash value.
Optionally, the issuing of the accompanying card to the user DAPP terminal based on the user tag corresponding to the electronic accompanying card application user includes:
The medical care DAPP end carries out encryption signature on the accompanying card by utilizing an elliptic curve encryption technology signature algorithm in an asymmetric encryption technology;
and issuing the encrypted and signed accompanying card to the user DAPP terminal based on the user label corresponding to the electronic accompanying card application user.
Optionally, the method further comprises:
the intelligent contract program obtains the current-day discharge patient data from the in-hospital HIS system at preset time intervals;
and automatically logging out corresponding accompanying card based on the patient data discharged from the hospital on the same day, and broadcasting logging-out information into the blockchain.
In addition, the embodiment of the invention also provides an electronic accompanying management device based on the blockchain, which comprises:
and a judging module: the method is used for judging whether the user applying for electronic accompanying is a defined special crowd or not;
a first hash value generation module: if not, the medical DAPP end receives user information input by the user DAPP end based on the application electronic accompanying user, generates a first hash value based on the received user information and broadcasts the first hash value to a block chain;
and a storage module: a distributed ledger for storing the first hash value in the blockchain to individual nodes, the nodes including full nodes and light nodes;
And a data acquisition module: the medical DAPP end is used for calling an API (application program interface) of a hospital accompanying background management system based on an intelligent contract program to obtain patient hospital data corresponding to the application electronic accompanying user synchronized by the hospital HIS system;
a second hash value generation module: the method comprises the steps of generating a second hash value based on data in a patient hospital, comparing the second hash value with the first hash value, and judging whether an application rule preset by an intelligent contract is met or not;
and (5) rejecting the module: if the application rule preset by the intelligent contract is not satisfied, performing reject processing on the application of the application electronic accompanying user, broadcasting reject information into the blockchain, and pushing the reject information to the user DAPP terminal based on a user label corresponding to the application electronic accompanying user;
the method comprises the following steps of: if the application rule preset by the intelligent contract is met, carrying out passing processing on the application of the application electronic accompanying user, and broadcasting passing information to the block chain;
and the issuing module is used for: the medical care DAPP end is used for generating the accompanying card based on the passing information and issuing the accompanying card to the user DAPP end based on the user label corresponding to the user applying for electronic accompanying card.
In addition, an embodiment of the present invention further provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the electronic accompanying management method as set forth in any one of the above.
In the specific implementation process of the invention, the number of accompanying personnel entering and exiting a hospital can be effectively controlled by organically combining the medical DAPP end and the user DAPP end, the identity of the accompanying personnel is monitored, and the personnel aggregation is reduced; monitoring and recording personal nucleic acid conditions of the accompanying personnel, and preventing the accompanying personnel from taking the duty with diseases; the identification codes are dynamically updated, all the health conditions and travel records are not tamperable and deleted, the information safety and traceability are ensured, meanwhile, the data do not need manual auditing, and special people can apply; through the communication with the hospital related system, the intelligent information auditing is realized, and the working efficiency is improved; the electronic accompanying code is used, so that the contact with medical staff and security personnel is reduced, and the infection probability is reduced to the maximum extent.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a blockchain-based electronic accompanying management method in an embodiment of the invention;
fig. 2 is a schematic structural diagram of a block chain-based electronic accompanying management device according to an embodiment of the invention;
FIG. 3 is a block chain architecture diagram of an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, fig. 1 is a flowchart of a blockchain-based electronic accompanying management method according to an embodiment of the invention.
As shown in fig. 1, a blockchain-based electronic accompanying management method includes:
s11: judging whether an application electronic accompanying user is a defined special crowd, wherein the special crowd is a user crowd incapable of using an intelligent terminal;
In the specific implementation process of the invention, when family members of inpatients need to apply for accompanying, whether users applying for electronic accompanying are defined special groups needs to be judged, and the special groups refer to user groups incapable of using intelligent terminals such as intelligent mobile phone terminals and the like, and are generally old people or children without intelligent mobile phones and the like.
S12: if not, the medical DAPP end receives user information input by the user DAPP end based on the application electronic accompanying user, generates a first hash value based on the received user information and broadcasts the first hash value to a block chain;
in the implementation process of the invention, the user information comprises: the method comprises the following steps of a name of a person to be attended, an identity card number of the person to be attended, a mobile phone number of the person to be attended, a nucleic acid detection report of the person to be attended, a name corresponding to a patient and an identity card number corresponding to the patient.
Further, the generating and broadcasting the first hash value into the blockchain based on the entered user information includes: the intelligent contract program on the Ethernet virtual machine deployed on the medical DAPP end encrypts the user information by utilizing a one-way encrypted SHA256 hash function to obtain a first encryption result; encrypting the first encryption result by using a one-way encrypted RipeMD160 hash function to obtain a first hash value; the obtained first hash value is broadcast into the block chain based on the broadcast form, wherein the block chain is a private chain.
Further, the encrypting the user information by using the one-way encrypted SHA256 hash function includes: performing bit filling processing on the user information based on the SHA256 hash function to form bit filled user information, wherein the length of the bit filled user information is a multiple of 512 bits; and carrying out block processing on the user information subjected to bit filling by taking 512 bits as a unit, and carrying out encryption processing on message blocks formed by the blocks one by one.
Further, the encrypting the first encrypted result by using the one-way encrypted rivemd 160 hash function includes: dividing the first encryption result into multiple blocks of 512, wherein each multiple block is 16 words; and 5 times of blocks are input into the RipeMD160 hash function for hash operation each time, and an operation result is converted into a hexadecimal character string to obtain a first hash value.
Specifically, a user applying for the electronic accompanying card enters the user DAPP end on the intelligent terminal through the user DAPP end, namely the intelligent terminal equipment of the user, scans the appointed two-dimensional code, then enters user information during application through the DAPP end, and uploads the information to the medical DAPP end, wherein the user information at least comprises an accompanying person name, an accompanying person identity card number, an accompanying person mobile phone number, an accompanying person nucleic acid detection report, a name corresponding to a patient, an identity card number corresponding to the patient and the like; and then the medical DAPP end encrypts the user information through an intelligent contract program on the Ethernet virtual machine deployed on the medical DAPP end, finally generates a first hash value and broadcasts the first hash value to the block chain.
As shown in fig. 3, in the blockchain, the medical DAPP end is set as a full node of the blockchain, the user DAPP end is set as a light node of the blockchain, an ethernet virtual machine is deployed only on the full node, an intelligent contract program is deployed on the ethernet virtual machine, and the encryption of user information to generate a first hash value is implemented on the intelligent contract program, specifically requiring two encryption processes, the first encryption process using SHA256 hash function and the second encryption process using risemd 160 hash function.
In the encryption processing using the SHA256 hash function, the encryption process is a one-way encryption process, the SHA256 hash function performs bit-filling processing on the user information first so that the final length of the user information after bit filling is a multiple of 512 bits, then blocks the user information after bit filling in units of 512 bits, and the remembered information blocks are M (1) ，M (2) ，...，M (N) Then the information is divided into blocks one by oneBy encrypting, i.e. from a fixed initial hash H (0) Initially, the following sequence of calculations was performed:
wherein C represents a compression function of the SHA256 hash function, + represents mod2 32 Addition, i.e. adding two digits together, if for 2 32 Taking the remainder, H (N) Hash values for the information chunks; the first encryption result can be obtained through the calculation processing.
The second encryption processing is realized by using a one-way encrypted RipeMD160 hash function, namely, the first encryption result is divided into multiple blocks of 512, wherein each multiple block contains 16 words, five multiple blocks are input into the RipeMD160 hash function for one hash operation at a time, a hash value with a hash value bit of 32 is output, all multiple blocks are calculated to obtain 5 hash values with 32 bits, the hash values are connected to form a 160-bit hash value, the uniqueness of the generated hash value is ensured, the collision rate is extremely low, and finally, a string of 160-bit hexadecimal character strings is generated from the 160-bit hash value, namely, the first hash value.
After obtaining the first hash value, the first hash value needs to be broadcast onto the blockchain, and the blockchain is a private chain.
S13: when the application electronic accompanying user is a defined special crowd, the medical care user inputs user information of the application electronic accompanying user corresponding to the special crowd at the medical care DAPP end, and the medical care DAPP end generates a first hash value based on the input user information and broadcasts the first hash value to a blockchain.
In the specific implementation process of the invention, when the application electronic accompanying user is a defined special crowd, medical staff is required to help the application work of the electronic accompanying through a medical DAPP end, the medical staff directly helps the special crowd to input the user information of the corresponding application electronic accompanying user on the DAPP end, and directly generates a first hash value on the medical DAPP end through an intelligent contract program and broadcasts the first hash value to a block chain; the method for generating the first hash value is the same as the previous step, and will not be described in detail herein.
S14: storing the first hash value in the blockchain to a distributed ledger of each node, the nodes including full nodes and light nodes;
in the implementation process of the invention, after the first hash value is received by the block link, the first hash value is stored in each node, the nodes in the block link are divided into full nodes and light nodes, wherein the medical DAPP end is defined as the full nodes, the user DAPP end is defined as the light nodes, meanwhile, the nodes in the block link all have the distributed account book storage function, but only the full nodes are provided with the Ethernet virtual machines, and the Ethernet virtual machines are provided with the intelligent contract programs.
S15: calling an API (application program interface) of a hospital accompanying background management system based on the intelligent contract program by the medical care DAPP end to obtain patient hospital data corresponding to the application electronic accompanying user synchronized by an hospital HIS (in-hospital HIS) system;
in the implementation process of the invention, the hospital nursing background management system acquires the patient hospital data corresponding to the application electronic nursing user synchronized in the hospital HIS system by calling the API interface of the hospital nursing background management system through the intelligent contract program deployed by the Ethernet virtual machine on the medical care DAPP end.
S16: generating a second hash value based on the patient hospital data, comparing the second hash value with the first hash value, and judging whether an application rule preset by an intelligent contract is met or not;
in the implementation process of the invention, after obtaining the data in the patient hospital, the encryption processing is carried out by the method of the step (step 2) to generate a second hash value; and meanwhile, comparing the first hash value with the second hash value in the intelligent contract program, and judging whether the preset application rule of the intelligent contract is met or not according to the comparison result.
S17: if the application rule preset by the intelligent contract is met, carrying out passing processing on the application of the application electronic accompanying user, and broadcasting passing information to the block chain;
In the specific implementation process of the invention, when the preset application rule of the intelligent contract is satisfied, the application of the application electronic accompanying user is processed in a passing way, and meanwhile, the passing information is broadcasted to the block chain; and meanwhile, pushing the message to the user DAPP end according to the user label corresponding to the electronic accompanying user.
S18: the medical DAPP end generates a accompany based on the passing information, and issues the accompany to the user DAPP end based on a user tag corresponding to the user applying for electronic accompany;
in the implementation process of the invention, the issuing of the accompanying card to the user DAPP end based on the user label corresponding to the application electronic accompanying card user comprises the following steps: the medical care DAPP end carries out encryption signature on the accompanying card by utilizing an elliptic curve encryption technology signature algorithm in an asymmetric encryption technology; and issuing the encrypted and signed accompanying card to the user DAPP terminal based on the user label corresponding to the electronic accompanying card application user.
Specifically, the medical care DAPP end performs encryption signature on the accompanying card by using an elliptic curve encryption technology signature algorithm in an asymmetric encryption technology, and then performs the issuing of the accompanying card after the encryption signature to the user DAPP end according to a user tag corresponding to the user applying for the electronic accompanying card.
The specific process of the encryption signature is as follows: assuming that the private key and the public key are K and K respectively, wherein k=kg, and G is a G point; private key signature: 1. selecting a random number r, and calculating a point rG (x, y); 2. calculating s= (h+kx)/r according to the random number r, the hash h of the message M and the private key k; sending message M, and signature { rG, s } to the recipient; public key signature: 1. the receiver receives message M and signature { rg= (x, y), s }; 2. solving hash h according to the message; 3. calculation using sender public key K: hG/s+xK/s, and comparing with rG, if equal, the verification is successful; the principle is as follows: : hG/s+xk/s=hg/s+x (kG)/s= (h+xk) G/s=r (h+xk) G/(h+kx) =rg.
The first step of ECDSA (elliptic curve cryptography signature algorithm) signing is to generate a message digest of the message to be signed. ECDSA256 uses SHA256 to generate a 256-bit digest. After the digest is generated, signature algorithm is applied to sign the digest: generating a random number k, and calculating two large numbers r and s by using the random number k; spelling r and s together forms a signature of the message digest.
S19: if the application rule preset by the intelligent contract is not satisfied, the application of the application electronic accompanying user is refused, refused information is broadcasted to the blockchain, and based on the user label corresponding to the application electronic accompanying user, refused information pushing is carried out to the user DAPP end.
In the specific implementation process of the invention, when the application rule preset by the intelligent contract is not satisfied, the application of the application electronic accompanying user is refused, refused information is broadcasted to the blockchain, and the refused information is pushed to the user DAPP end according to the user label corresponding to the application electronic accompanying user; because the reject information is recorded in each node of the blockchain, the user cannot apply for a second time using the user DAPP, requiring the healthcare staff to apply for a second time using the healthcare DAPP.
In the implementation process of the invention, the method further comprises the following steps: the intelligent contract program obtains the current-day discharge patient data from the in-hospital HIS system at preset time intervals; and automatically logging out corresponding accompanying card based on the patient data discharged from the hospital on the same day, and broadcasting logging-out information into the blockchain.
Specifically, after a patient is discharged, the corresponding accompanying cancellation is required, so that the intelligent contract program obtains the data of the patient discharged on the same day in the in-hospital HIS system every a period of time (preset as 12 hours in the application); and then automatically logging out the corresponding accompanying card according to the data of the patient discharged on the same day, and broadcasting the logging-out information into the blockchain.
Meanwhile, when the accompanying person needs to be replaced, namely, the accompanying person is newly applied after the change of the accompanying person is required to be cancelled, if the accompanying person is cancelled after the user DAPP end is cancelled during hospitalization, the user DAPP end can cancel the request by self, or the medical DAPP directly operates the cancellation, firstly, the application is initiated at the user DAPP end through the accompanying person, the cancellation is confirmed for the second time, or the medical DAPP end contacts the medical care through other communication modes, the original accompanying person is marked as cancellation, the operation records are broadcast to all nodes through a blockchain network, the accompanying application is restarted through the user DAPP end, or the accompanying person (special crowd) is changed through the medical DAPP end, finally, the operation records are broadcast to all nodes through an accompanying blockchain (private chain) network, and the operation records are stored again.
In the specific implementation process of the invention, the number of accompanying personnel entering and exiting a hospital can be effectively controlled by organically combining the medical DAPP end and the user DAPP end, the identity of the accompanying personnel is monitored, and the personnel aggregation is reduced; monitoring and recording personal nucleic acid conditions of the accompanying personnel, and preventing the accompanying personnel from taking the duty with diseases; the electronic accompanying code is dynamically updated, all the health conditions and travel records are not tamperable and deleted, the information safety and traceability are ensured, meanwhile, the data do not need manual auditing, and special people can apply; through the communication with the hospital related system, the intelligent information auditing is realized, and the working efficiency is improved; the electronic accompanying code is used, so that the contact with medical staff and security personnel is reduced, and the infection probability is reduced to the maximum extent.
Example two
Referring to fig. 2, fig. 2 is a schematic structural diagram of a block chain-based electronic accompanying management device according to an embodiment of the invention.
As shown in fig. 2, an electronic accompanying management device based on a blockchain, the device comprising:
the judgment module 21: the method is used for judging whether the user applying for electronic accompanying is a defined special crowd or not;
in the specific implementation process of the invention, when family members of inpatients need to apply for accompanying, whether users applying for electronic accompanying are defined special groups needs to be judged, and the special groups refer to user groups incapable of using intelligent terminals such as intelligent mobile phone terminals and the like, and are generally old people or children without intelligent mobile phones and the like.
The first hash value generation module 22: if not, the medical DAPP end receives user information input by the user DAPP end based on the application electronic accompanying user, generates a first hash value based on the received user information and broadcasts the first hash value to a block chain;
in the implementation process of the invention, the user information comprises: the method comprises the following steps of a name of a person to be attended, an identity card number of the person to be attended, a mobile phone number of the person to be attended, a nucleic acid detection report of the person to be attended, a name corresponding to a patient and an identity card number corresponding to the patient.
Further, the generating and broadcasting the first hash value into the blockchain based on the entered user information includes: the intelligent contract program on the Ethernet virtual machine deployed on the medical DAPP end encrypts the user information by utilizing a one-way encrypted SHA256 hash function to obtain a first encryption result; encrypting the first encryption result by using a one-way encrypted RipeMD160 hash function to obtain a first hash value; the obtained first hash value is broadcast into the block chain based on the broadcast form, wherein the block chain is a private chain.
Further, the encrypting the user information by using the one-way encrypted SHA256 hash function includes: performing bit filling processing on the user information based on the SHA256 hash function to form bit filled user information, wherein the length of the bit filled user information is a multiple of 512 bits; and carrying out block processing on the user information subjected to bit filling by taking 512 bits as a unit, and carrying out encryption processing on message blocks formed by the blocks one by one.
Further, the encrypting the first encrypted result by using the one-way encrypted rivemd 160 hash function includes: dividing the first encryption result into multiple blocks of 512, wherein each multiple block is 16 words; and 5 times of blocks are input into the RipeMD160 hash function for hash operation each time, and an operation result is converted into a hexadecimal character string to obtain a first hash value.
Specifically, a user applying for the electronic accompanying card enters the user DAPP end on the intelligent terminal through the user DAPP end, namely the intelligent terminal equipment of the user, scans the appointed two-dimensional code, then enters user information during application through the DAPP end, and uploads the information to the medical DAPP end, wherein the user information at least comprises an accompanying person name, an accompanying person identity card number, an accompanying person mobile phone number, an accompanying person nucleic acid detection report, a name corresponding to a patient, an identity card number corresponding to the patient and the like; and then the medical DAPP end encrypts the user information through an intelligent contract program on the Ethernet virtual machine deployed on the medical DAPP end, finally generates a first hash value and broadcasts the first hash value to the block chain.
As shown in fig. 3, in the blockchain, the medical DAPP end is set as a full node of the blockchain, the user DAPP end is set as a light node of the blockchain, an ethernet virtual machine is deployed only on the full node, an intelligent contract program is deployed on the ethernet virtual machine, and the encryption of user information to generate a first hash value is implemented on the intelligent contract program, specifically requiring two encryption processes, the first encryption process using SHA256 hash function and the second encryption process using risemd 160 hash function.
In the encryption processing using the SHA256 hash function, the encryption process is a one-way encryption process, the SHA256 hash function performs bit-filling processing on the user information first so that the final length of the user information after bit filling is a multiple of 512 bits, then blocks the user information after bit filling in units of 512 bits, and the remembered information blocks are M (1) ，M (2) ，...，M (N) Then the information blocks are encrypted one by one, namely from a fixed initial hash H (0) Initially, the following sequence of calculations was performed:
wherein C represents a compression function of the SHA256 hash function, + represents mod2 32 Addition, i.e. adding two digits together, if for 2 32 Taking the remainder, H (N) Hash values for the information chunks; the first encryption result can be obtained through the calculation processing.
The second encryption processing is realized by using a one-way encrypted RipeMD160 hash function, namely, the first encryption result is divided into multiple blocks of 512, wherein each multiple block contains 16 words, five multiple blocks are input into the RipeMD160 hash function for one hash operation at a time, a hash value with a hash value bit of 32 is output, all multiple blocks are calculated to obtain 5 hash values with 32 bits, the hash values are connected to form a 160-bit hash value, the uniqueness of the generated hash value is ensured, the collision rate is extremely low, and finally, a string of 160-bit hexadecimal character strings is generated from the 160-bit hash value, namely, the first hash value.
After obtaining the first hash value, the first hash value needs to be broadcast onto the blockchain, and the blockchain is a private chain.
When the application electronic accompanying user is a defined special crowd, the medical care user inputs user information of the application electronic accompanying user corresponding to the special crowd at the medical care DAPP end, and the medical care DAPP end generates a first hash value based on the input user information and broadcasts the first hash value to the blockchain.
In the specific implementation process of the invention, when the application electronic accompanying user is a defined special crowd, medical staff is required to help the application work of the electronic accompanying through a medical DAPP end, the medical staff directly helps the special crowd to input the user information of the corresponding application electronic accompanying user on the DAPP end, and directly generates a first hash value on the medical DAPP end through an intelligent contract program and broadcasts the first hash value to a block chain; the method for generating the first hash value is the same as the previous step, and will not be described in detail herein.
The storage module 23: a distributed ledger for storing the first hash value in the blockchain to individual nodes, the nodes including full nodes and light nodes;
in the implementation process of the invention, after the first hash value is received by the block link, the first hash value is stored in each node, the nodes in the block link are divided into full nodes and light nodes, wherein the medical DAPP end is defined as the full nodes, the user DAPP end is defined as the light nodes, meanwhile, the nodes in the block link all have the distributed account book storage function, but only the full nodes are provided with the Ethernet virtual machines, and the Ethernet virtual machines are provided with the intelligent contract programs.
Data acquisition module 24: the medical DAPP end is used for calling an API (application program interface) of a hospital accompanying background management system based on an intelligent contract program to obtain patient hospital data corresponding to the application electronic accompanying user synchronized by the hospital HIS system;
in the implementation process of the invention, the hospital nursing background management system acquires the patient hospital data corresponding to the application electronic nursing user synchronized in the hospital HIS system by calling the API interface of the hospital nursing background management system through the intelligent contract program deployed by the Ethernet virtual machine on the medical care DAPP end.
The second hash value generation module 25: the method comprises the steps of generating a second hash value based on data in a patient hospital, comparing the second hash value with the first hash value, and judging whether an application rule preset by an intelligent contract is met or not;
in the implementation process of the invention, after obtaining the data in the patient hospital, the encryption processing is carried out by the method of the step (step 2) to generate a second hash value; and meanwhile, comparing the first hash value with the second hash value in the intelligent contract program, and judging whether the preset application rule of the intelligent contract is met or not according to the comparison result.
Reject module 26: if the application rule preset by the intelligent contract is not satisfied, performing reject processing on the application of the application electronic accompanying user, broadcasting reject information into the blockchain, and pushing the reject information to the user DAPP terminal based on a user label corresponding to the application electronic accompanying user;
in the specific implementation process of the invention, when the application rule preset by the intelligent contract is not satisfied, the application of the application electronic accompanying user is refused, refused information is broadcasted to the blockchain, and the refused information is pushed to the user DAPP end according to the user label corresponding to the application electronic accompanying user; because the reject information is recorded in each node of the blockchain, the user cannot apply for a second time using the user DAPP, requiring the healthcare staff to apply for a second time using the healthcare DAPP.
By means of the module 27: if the application rule preset by the intelligent contract is met, carrying out passing processing on the application of the application electronic accompanying user, and broadcasting passing information to the block chain;
in the specific implementation process of the invention, when the preset application rule of the intelligent contract is satisfied, the application of the application electronic accompanying user is processed in a passing way, and meanwhile, the passing information is broadcasted to the block chain; and meanwhile, pushing the message to the user DAPP end according to the user label corresponding to the electronic accompanying user.
Issue module 28: the medical care DAPP end is used for generating the accompanying card based on the passing information and issuing the accompanying card to the user DAPP end based on the user label corresponding to the user applying for electronic accompanying card.
In the implementation process of the invention, the issuing of the accompanying card to the user DAPP end based on the user label corresponding to the application electronic accompanying card user comprises the following steps: the medical care DAPP end carries out encryption signature on the accompanying card by utilizing an elliptic curve encryption technology signature algorithm in an asymmetric encryption technology; and issuing the encrypted and signed accompanying card to the user DAPP terminal based on the user label corresponding to the electronic accompanying card application user.
Specifically, the medical care DAPP end performs encryption signature on the accompanying card by using an elliptic curve encryption technology signature algorithm in an asymmetric encryption technology, and then performs the issuing of the accompanying card after the encryption signature to the user DAPP end according to a user tag corresponding to the user applying for the electronic accompanying card.
The specific process of the encryption signature is as follows: assuming that the private key and the public key are K and K respectively, wherein k=kg, and G is a G point; private key signature: 1. selecting a random number r, and calculating a point rG (x, y); 2. calculating s= (h+kx)/r according to the random number r, the hash h of the message M and the private key k; sending message M, and signature { rG, s } to the recipient; public key signature: 1. the receiver receives message M and signature { rg= (x, y), s }; 2. solving hash h according to the message; 3. calculation using sender public key K: hG/s+xK/s, and comparing with rG, if equal, the verification is successful; the principle is as follows: : hG/s+xk/s=hg/s+x (kG)/s= (h+xk) G/s=r (h+xk) G/(h+kx) =rg.
The first step of ECDSA (elliptic curve cryptography signature algorithm) signing is to generate a message digest of the message to be signed. ECDSA256 uses SHA256 to generate a 256-bit digest. After the digest is generated, signature algorithm is applied to sign the digest: generating a random number k, and calculating two large numbers r and s by using the random number k; spelling r and s together forms a signature of the message digest.
In the implementation process of the invention, the device further comprises: the intelligent contract program obtains the current-day discharge patient data from the in-hospital HIS system at preset time intervals; and automatically logging out corresponding accompanying card based on the patient data discharged from the hospital on the same day, and broadcasting logging-out information into the blockchain.
Specifically, after a patient is discharged, the corresponding accompanying cancellation is required, so that the intelligent contract program obtains the data of the patient discharged on the same day in the in-hospital HIS system every period of time (preset as 12 hours in the application); and then automatically logging out the corresponding accompanying card according to the data of the patient discharged on the same day, and broadcasting the logging-out information into the blockchain.
Meanwhile, when the accompanying person needs to be replaced, namely the accompanying person is newly applied after the change of the accompanying person is required to be cancelled, if the accompanying person is cancelled after the user DAPP end is cancelled during hospitalization, the user DAPP end can cancel the request by self, or the medical DAPP directly operates the cancellation, firstly, the application is initiated at the user DAPP end through the accompanying person, the cancellation is confirmed secondarily, or the medical DAPP end contacts the medical care through other communication modes, marks the original accompanying person as cancellation, and broadcasts the cancellation to all nodes through a blockchain network to store operation records, then the accompanying application is restarted through the user DAPP end, or the accompanying person (special crowd) is changed through the medical care DAPP end, finally, the operation records are broadcast to all nodes through an accompanying blockchain (private chain) network, and the operation records are stored again.
In the specific implementation process of the invention, the number of accompanying personnel entering and exiting a hospital can be effectively controlled by organically combining the medical DAPP end and the user DAPP end, the identity of the accompanying personnel is monitored, and the personnel aggregation is reduced; monitoring and recording personal nucleic acid conditions of the accompanying personnel, and preventing the accompanying personnel from taking the duty with diseases; the identification codes are dynamically updated, all the health conditions and travel records are not tamperable and deleted, the information safety and traceability are ensured, meanwhile, the data do not need manual auditing, and special people can apply; through the communication with the hospital related system, the intelligent information auditing is realized, and the working efficiency is improved; the electronic accompanying code is used, so that the contact with medical staff and security personnel is reduced, and the infection probability is reduced to the maximum extent.
An embodiment of the present invention provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the electronic accompanying management method of any one of the embodiments above. The computer readable storage medium includes, but is not limited to, any type of disk including floppy disks, hard disks, optical disks, CD-ROMs, and magneto-optical disks, ROMs (Read-Only memories), RAMs (Random AcceSS Memory, random access memories), EPROMs (EraSable Programmable Read-Only memories), EEPROMs (Electrically EraSable ProgrammableRead-Only memories), flash memories, magnetic cards, or optical cards. That is, a storage device includes any medium that stores or transmits information in a form readable by a device (e.g., computer, cell phone), and may be read-only memory, magnetic or optical disk, etc.
The embodiment of the invention also provides a computer application program which runs on a computer and is used for executing the electronic accompanying management method of any one of the embodiments.
In addition, the above details of the block chain-based electronic accompanying management method, apparatus and storage medium provided in the embodiments of the present invention, and specific examples should be adopted to illustrate the principles and embodiments of the present invention, where the above description of the embodiments is only for helping to understand the method and core ideas of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.

Claims (10)

1. A blockchain-based electronic accompanying management method, the method comprising:
judging whether an application electronic accompanying user is a defined special crowd, wherein the special crowd is a user crowd incapable of using an intelligent terminal;
if not, the medical DAPP end receives user information input by the user DAPP end based on the application electronic accompanying user, generates a first hash value based on the received user information and broadcasts the first hash value to a block chain;
Storing the first hash value in the blockchain to a distributed ledger of each node, the nodes including full nodes and light nodes;
calling an API (application program interface) of a hospital accompanying background management system based on the intelligent contract program by the medical care DAPP end to obtain patient hospital data corresponding to the application electronic accompanying user synchronized by an hospital HIS (in-hospital HIS) system;
generating a second hash value based on the patient hospital data, comparing the second hash value with the first hash value, and judging whether an application rule preset by an intelligent contract is met or not;
if the application rule preset by the intelligent contract is not met, performing rejection processing on the application of the application electronic accompanying user, broadcasting rejection information into the blockchain, and pushing the rejection information to the user DAPP terminal based on the user label corresponding to the application electronic accompanying user;
if the application rule preset by the intelligent contract is met, carrying out passing processing on the application of the application electronic accompanying user, and broadcasting passing information to the block chain;
and the medical care DAPP end generates a accompany based on the passing information, and issues the accompany to the user DAPP end based on a user tag corresponding to the user applying for electronic accompany.
2. The electronic accompanying management method of claim 1, further comprising:
when the application electronic accompanying user is a defined special crowd, the medical care user inputs user information of the application electronic accompanying user corresponding to the special crowd at the medical care DAPP end, and the medical care DAPP end generates a first hash value based on the input user information and broadcasts the first hash value to a blockchain.
3. The electronic accompanying management method of claim 1, wherein the user information comprises: the method comprises the following steps of a name of a person to be attended, an identity card number of the person to be attended, a mobile phone number of the person to be attended, a nucleic acid detection report of the person to be attended, a name corresponding to a patient and an identity card number corresponding to the patient.
4. The electronic accompanying management method of claim 1, wherein the generating and broadcasting the first hash value into the blockchain based on the entered user information comprises:
the intelligent contract program on the Ethernet virtual machine deployed on the medical DAPP end encrypts the user information by utilizing a one-way encrypted SHA256 hash function to obtain a first encryption result;
encrypting the first encryption result by using a one-way encrypted RipeMD160 hash function to obtain a first hash value;
The obtained first hash value is broadcast into the block chain based on the broadcast form, wherein the block chain is a private chain.
5. The electronic accompanying management method as set forth in claim 4, wherein the encrypting the user information using a one-way encrypted SHA256 hash function includes:
performing bit filling processing on the user information based on the SHA256 hash function to form bit filled user information, wherein the length of the bit filled user information is a multiple of 512 bits;
and carrying out block processing on the user information subjected to bit filling by taking 512 bits as a unit, and carrying out encryption processing on message blocks formed by the blocks one by one.
6. The electronic accompanying management method as set forth in claim 4, wherein the encrypting the first encrypted result using a one-way encrypted rivemd 160 hash function includes:
dividing the first encryption result into multiple blocks of 512, wherein each multiple block is 16 words;
and 5 times of blocks are input into the RipeMD160 hash function for hash operation each time, and an operation result is converted into a hexadecimal character string to obtain a first hash value.
7. The method for managing electronic accompanying and attending to claim 1, wherein said issuing of the accompanying and attending to the DAPP terminal of the user based on the user tag corresponding to the user applying for electronic accompanying and attending to the user includes:
The medical care DAPP end carries out encryption signature on the accompanying card by utilizing an elliptic curve encryption technology signature algorithm in an asymmetric encryption technology;
and issuing the encrypted and signed accompanying card to the user DAPP terminal based on the user label corresponding to the electronic accompanying card application user.
8. The electronic accompanying management method of claim 1, further comprising:
the intelligent contract program obtains the current-day discharge patient data from the in-hospital HIS system at preset time intervals;
and automatically logging out corresponding accompanying card based on the patient data discharged from the hospital on the same day, and broadcasting logging-out information into the blockchain.
9. A blockchain-based electronic accompanying management device, the device comprising:
and a judging module: the method is used for judging whether the user applying for electronic accompanying is a defined special crowd or not;
a first hash value generation module: if not, the medical DAPP end receives user information input by the user DAPP end based on the application electronic accompanying user, generates a first hash value based on the received user information and broadcasts the first hash value to a block chain;
and a storage module: a distributed ledger for storing the first hash value in the blockchain to individual nodes, the nodes including full nodes and light nodes;
And a data acquisition module: the medical DAPP end is used for calling an API (application program interface) of a hospital accompanying background management system based on an intelligent contract program to obtain patient hospital data corresponding to the application electronic accompanying user synchronized by the hospital HIS system;
a second hash value generation module: the method comprises the steps of generating a second hash value based on data in a patient hospital, comparing the second hash value with the first hash value, and judging whether an application rule preset by an intelligent contract is met or not;
and (5) rejecting the module: if the application rule preset by the intelligent contract is not satisfied, performing reject processing on the application of the application electronic accompanying user, broadcasting reject information into the blockchain, and pushing the reject information to the user DAPP terminal based on a user label corresponding to the application electronic accompanying user;
the method comprises the following steps of: if the application rule preset by the intelligent contract is met, carrying out passing processing on the application of the application electronic accompanying user, and broadcasting passing information to the block chain;
and the issuing module is used for: the medical care DAPP end is used for generating the accompanying card based on the passing information and issuing the accompanying card to the user DAPP end based on the user label corresponding to the user applying for electronic accompanying card.
10. A computer-readable storage medium having stored thereon a computer program, wherein the program when executed by a processor implements the electronic accompanying management method as recited in any one of claims 1 to 8.
CN202211019570.6A 2022-08-24 2022-08-24 Electronic accompanying management method, device and storage medium based on blockchain Active CN115565277B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211019570.6A CN115565277B (en) 2022-08-24 2022-08-24 Electronic accompanying management method, device and storage medium based on blockchain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211019570.6A CN115565277B (en) 2022-08-24 2022-08-24 Electronic accompanying management method, device and storage medium based on blockchain

Publications (2)

Publication Number Publication Date
CN115565277A CN115565277A (en) 2023-01-03
CN115565277B true CN115565277B (en) 2023-07-25

Family

ID=84739042

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211019570.6A Active CN115565277B (en) 2022-08-24 2022-08-24 Electronic accompanying management method, device and storage medium based on blockchain

Country Status (1)

Country Link
CN (1) CN115565277B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106981108A (en) * 2016-01-19 2017-07-25 福建省光速达物联网科技股份有限公司 A kind of bluetooth nurse method for unlocking and system
CN108766540A (en) * 2018-05-15 2018-11-06 李招兵 A kind of intelligent medical treatment system
AU2020103319A4 (en) * 2020-11-09 2021-01-14 G. Arunkumar To Transmit e-Medical Records for Sharing on Blockchain using Homomorphic Encryption Methods
CN114693494A (en) * 2022-04-24 2022-07-01 南通大学 Block chain-based customized public transportation travel method and system for disabled people

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170324711A1 (en) * 2016-05-03 2017-11-09 The Real Mccoy, Llc Inc. Method for establishing, securing and transferring computer readable information using peer-to-peer public and private key cryptography
SG11201908651SA (en) * 2019-03-01 2019-10-30 Alibaba Group Holding Ltd Methods and devices for protecting sensitive data of transaction activity based on smart contract in blockchain
US11755998B2 (en) * 2020-05-18 2023-09-12 International Business Machines Corporation Smart data annotation in blockchain networks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106981108A (en) * 2016-01-19 2017-07-25 福建省光速达物联网科技股份有限公司 A kind of bluetooth nurse method for unlocking and system
CN108766540A (en) * 2018-05-15 2018-11-06 李招兵 A kind of intelligent medical treatment system
AU2020103319A4 (en) * 2020-11-09 2021-01-14 G. Arunkumar To Transmit e-Medical Records for Sharing on Blockchain using Homomorphic Encryption Methods
CN114693494A (en) * 2022-04-24 2022-07-01 南通大学 Block chain-based customized public transportation travel method and system for disabled people

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
基于区块链的老年护理平台应用研究;顾真源等;《合作经济与科技》;第第5卷卷;第151-154页 *

Also Published As

Publication number Publication date
CN115565277A (en) 2023-01-03

Similar Documents

Publication Publication Date Title
CN111639361B (en) Block chain key management method, multi-person common signature method and electronic device
Brogan et al. Authenticating health activity data using distributed ledger technologies
US10110576B2 (en) Distributed key secret for rewritable blockchain
CN110797099B (en) Medical data sharing method and system based on block chain
Singh et al. Intelligent vehicle-trust point: Reward based intelligent vehicle communication using blockchain
CN103562851A (en) Data perturbation and anonymization using one-way hash
CN108038184A (en) A kind of date storage method and system based on block chain, a kind of intelligent block chain
Guo et al. A lightweight verifiable outsourced decryption of attribute-based encryption scheme for blockchain-enabled wireless body area network in fog computing
US20160007192A1 (en) Wireless sensor network and central node device thereof
CN110855445A (en) Block chain-based certificate management method and device and storage equipment
CN113793665A (en) Novel electronic medical record sharing method fusing block chains and real behavior characteristics
Huang et al. Human interactive secure ID management in body sensor networks
CN112182109A (en) Distributed data coding storage method based on block chain and electronic equipment
Qin et al. A privacy-preserving blockchain-based tracing model for virus-infected people in cloud
US12001584B2 (en) Privacy-preserving contact tracing
CN114172655A (en) Secure multi-party computing data system, method, equipment and data processing terminal
CN107231628B (en) Safety data fusion method suitable for multiple application scenes
CN115565277B (en) Electronic accompanying management method, device and storage medium based on blockchain
Wen et al. A Blockchain‐Based Privacy Preservation Scheme in Mobile Medical
CN110618989A (en) Information processing method, information processing device and related product
Wu et al. An improved Huffman coding with encryption for Radio Data System (RDS) for smart transportation
US11902451B2 (en) Cross-blockchain identity and key management
CN115168494A (en) Distributed data storage method and system based on block chain technology
CN114363094A (en) Data sharing method, device, equipment and storage medium
CN103297962A (en) Opportunity network route method and system based on encrypted fuzzy keywords

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant