CN113076554A - Physical examination data safe storage method based on block chain - Google Patents
Physical examination data safe storage method based on block chain Download PDFInfo
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- CN113076554A CN113076554A CN202110272098.6A CN202110272098A CN113076554A CN 113076554 A CN113076554 A CN 113076554A CN 202110272098 A CN202110272098 A CN 202110272098A CN 113076554 A CN113076554 A CN 113076554A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6227—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database where protection concerns the structure of data, e.g. records, types, queries
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2107—File encryption
Abstract
The invention is suitable for the technical field of computers, and provides a physical examination data safe storage method based on a block chain, which comprises the following steps: performing attribute analysis on physical examination data of a user to determine an encrypted item in the physical examination data, wherein the encrypted item at least comprises a name, an identity card number, an address and a contact way of the user; converting the information in each encrypted item into a corresponding character string, wherein the character string is a sequence consisting of characters; sequentially converting each character in the character string into a safety code according to a randomly generated mapping relation sequence, so that an encrypted item in the physical examination data is converted into a safety code sequence, wherein the mapping relation sequence is used for representing the mapping relation between the character sequence and the safety code sequence; the physical examination data are stored in the block chain, and the method has the beneficial effects that: the leakage of personal information can be effectively prevented, and the information safety and privacy of the user can be protected.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a physical examination data safe storage method based on a block chain.
Background
Blockchains are a term of art in information technology. In essence, the system is a shared database, and the data or information stored in the shared database has the characteristics of 'unforgeability', 'whole-course trace', 'traceability', 'public transparency', 'collective maintenance', and the like. Based on the characteristics, the block chain technology lays a solid 'trust' foundation, creates a reliable 'cooperation' mechanism and has wide application prospect.
The current medical examination data is mainly managed by medical institutions, and has strict limitations and regulations on the transmission and sharing of important personal information. The block chain can effectively prevent the physical examination data from being tampered, but the physical examination data contains personal information such as the name, the identification number, the address and the contact way of the user, and needs to be encrypted and stored.
However, in the prior art, all physical examination data is basically encrypted and stored, since in the prior art, sharing of physical examination data, reports and the like can be realized by means of a block chain, physical examination data of users, corresponding suggestion guidance and the like have certain guidance significance for people with similar index data, and on the other hand, the possibility of interaction among a plurality of users is reduced while all physical examination data are encrypted and stored once, although privacy disclosure can be prevented.
Disclosure of Invention
The embodiment of the invention aims to provide a physical examination data safe storage method based on a block chain, and aims to solve the technical problems in the prior art determined in the background technology.
The embodiment of the invention is realized in such a way that a physical examination data safe storage method based on a block chain comprises the following steps:
performing attribute analysis on physical examination data of a user to determine an encrypted item in the physical examination data, wherein the encrypted item at least comprises a name, an identity card number, an address and a contact way of the user;
converting the information in each encrypted item into a corresponding character string, wherein the character string is a sequence consisting of characters;
sequentially converting each character in the character string into a safety code according to a randomly generated mapping relation sequence, so that an encrypted item in the physical examination data is converted into a safety code sequence, wherein the mapping relation sequence is used for representing the mapping relation between the character sequence and the safety code sequence;
and storing the obtained physical examination data into a block chain.
As a further scheme of the invention: the method comprises the following steps of analyzing attributes of physical examination data of a user to determine encrypted items in the physical examination data, wherein the encrypted items at least comprise names, identification numbers, addresses and contact ways of the user, and specifically comprises the following steps:
acquiring physical examination data of a user;
identifying physical examination data of a user to determine various classification items of the physical examination data;
judging whether the classification items meet preset encryption conditions or not, and dividing the classification items into encryption items when the classification items meet the preset encryption conditions.
As a still further scheme of the invention: the step of converting the information in each encrypted item into a corresponding character string, where the character string is a sequence composed of characters, specifically includes:
extracting information in the encrypted item, wherein the information at least comprises one of literal information and numerical information, and the basic composition unit of the information is a character;
and arranging the characters according to the original sequence to obtain a character string.
As a still further scheme of the invention: the method comprises the following steps of sequentially converting each character in a character string into a safety code according to a randomly generated mapping relation sequence, converting an encrypted item in the physical examination data into a safety code sequence, wherein the mapping relation sequence is used for representing the mapping relation between the character sequence and the safety code sequence, and specifically comprises the following steps:
generating a random mapping relation sequence, wherein the mapping relation sequence is used for representing the mapping relation between the character sequence and the safety code sequence;
sequentially converting the characters into corresponding security code numbers according to the sequence of the mapping relation according to the sequence of the characters to obtain a security code number sequence corresponding to the encrypted item;
and locally storing the mapping relation sequence, wherein the mapping relation sequence is associated with the encrypted item and the user.
As a still further scheme of the invention: the step of generating a random mapping relationship sequence, where the mapping relationship sequence is used to characterize a mapping relationship between a character sequence and a security code sequence, specifically includes:
setting a character library and n safe code libraries, wherein the safe codes in each safe code library are different, each character in the character library has only one safe code corresponding to the character in each safe code library, and n is a positive integer greater than 1;
respectively configuring a unique mapping relation for each character in the character library and each safe code library in each safe code library;
and randomly selecting a mapping relation for each character in sequence to obtain a mapping relation sequence.
As a still further scheme of the invention: the step of storing the obtained physical examination data into a block chain specifically comprises:
writing the physical examination data into a corresponding partition of a block chain;
and after the writing is successful, returning the corresponding partition address to the user.
As a still further scheme of the invention: further comprising the steps of:
when physical examination data in the block chain receives an access request, verifying the access request;
when the physical examination data is read, transferred or downloaded, user information contained in an access request is acquired;
recording or storing the user information contained in the access request into a request record, wherein the request record is associated with the user who uploads the physical examination data.
Compared with the prior art, the invention has the beneficial effects that: on the premise of realizing data sharing, classification items related to personal information of a user can be encrypted in a targeted manner, the encrypted items are encrypted locally through a randomly generated mapping relation sequence, the mapping relation sequence is randomly generated, the conversion result of each character has uncertainty, the finally obtained security code sequence also has randomness and uncertainty actually, leakage of the personal information can be effectively prevented, and the information security and privacy of the user are protected.
Drawings
Fig. 1 is a flowchart of a physical examination data secure storage method based on a block chain.
Fig. 2 is a flowchart of the attribute analysis of physical examination data of a user.
Fig. 3 is a flowchart of converting information in each encrypted item into a corresponding character string.
Figure 4 is a flow chart for converting encrypted items in the physical examination data into a secure code sequence.
Fig. 5 is a flowchart for generating a random mapping relationship sequence.
Figure 6 is a flow chart for storing the resulting physical examination data into a blockchain.
Fig. 7 is a flowchart of a method for safely storing physical examination data based on a blockchain in yet another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, a flowchart of a method for safely storing physical examination data based on a blockchain according to an embodiment of the present invention includes the following steps:
s200, carrying out attribute analysis on the physical examination data of the user to determine an encrypted item in the physical examination data, wherein the encrypted item at least comprises the name, the identification number, the address and the contact way of the user.
In the embodiment of the invention, because the experience data of the user has a strong practical effect in practical application, for example, a doctor can conveniently and directly judge the physical state of the user, or a certain guiding significance is provided for people with similar index data, the embodiment of the invention does not consider that all physical examination data are encrypted, and only encrypts some items related to personal information. In this embodiment, names, identification numbers, addresses, and contact addresses are listed as encrypted items, so that even if someone acquires the physical examination data, the personal information of the user cannot be acquired.
S400, converting the information in each encrypted item into a corresponding character string, wherein the character string is a sequence formed by characters.
In practical application of the embodiment of the present invention, since the personal information itself is a combination of characters or numbers, the information in the encrypted item is actually a character string, and it should be noted here that the characters in the character string have a strict sequential relationship, and taking the address of the user as "beijing hai lake district jimen qiao west local city road No. 6" as an example, in fact, after the conversion, the obtained character string is { north, jing, city, sea, lake, district, thistle, door, bridge, west, earth, city, road, 6, number }.
S600, sequentially converting each character in the character string into a safe code according to a randomly generated mapping relation sequence, so that the encrypted item in the physical examination data is converted into a safe code sequence, wherein the mapping relation sequence is used for representing the mapping relation between the character sequence and the safe code sequence.
In practical application, because the mapping relation sequence is randomly generated, the conversion result of each character has uncertainty, and the finally obtained safe code sequence also has randomness and uncertainty actually, the embodiment of the invention can effectively prevent personal information from being leaked, and protect the information safety and privacy of users.
And S800, storing the obtained physical examination data into a block chain.
In the embodiment of the invention, the encryption operation of the encryption item and the like are carried out locally or on a client authorized by a user, the physical examination data is encrypted and then stored in the block chain, and the leakage of personal information can be effectively avoided.
As shown in fig. 2, as a preferred embodiment of the present invention, the performing attribute analysis on the physical examination data of the user to determine an encrypted item in the physical examination data, where the encrypted item at least includes a name, an identification number, an address, and a contact address of the user, specifically includes:
s201, physical examination data of the user is acquired.
In the embodiment of the invention, the physical examination data of the user is the physical examination data of the electronic file, and each index item and data, personal information of the user and the like are contained in the physical examination data.
S203, identifying the physical examination data of the user to determine each classification item of the physical examination data.
In practical application, each classification item in the physical examination data can be identified through semantic identification or character identification, and the classification item refers to the index item and the personal information.
S205, judging whether the classification item meets a preset encryption condition or not, and when the classification item meets the preset encryption condition, dividing the classification item into encryption items.
In the embodiment of the present invention, the preset encryption condition may be: when the classification item exists in the encryption classification item library, that is, it is stated that the classification item needs to be encrypted, that is, it meets the preset encryption condition, the encryption classification item library herein refers to a set of classification items that should be encrypted, for example, the name, identification number, address and contact address in this embodiment should exist in the encryption classification item library.
As shown in fig. 3, as another preferred embodiment of the present invention, the step of converting the information in each encrypted item into a corresponding character string, where the character string is a sequence composed of characters, specifically includes:
s401, extracting information in the encrypted item, wherein the information at least comprises one of literal information and numerical information, and the basic composition unit of the information is a character.
In practical application, the embodiment of the invention takes the user's address of "beijing city hai lake district jimen bridge west soil city road No. 6" as an example, which contains characters and numbers, wherein each character or number is regarded as a character.
And S403, arranging the characters according to the original sequence to obtain a character string.
In the embodiment of the invention, the character string obtained by arranging the characters is { north, Beijing, City, sea, lake, district, thistle, gate, bridge, west, soil, city, road, number 6 }, according to the original expression sequence.
As shown in fig. 4, as another preferred embodiment of the present invention, the step of sequentially converting each character in the character string into a secure code in order according to a randomly generated mapping relationship sequence, so as to convert the encrypted item in the physical examination data into a secure code sequence, where the mapping relationship sequence is used to characterize a mapping relationship between the character sequence and the secure code sequence specifically includes:
s601, generating a random mapping relation sequence, wherein the mapping relation sequence is used for representing the mapping relation between the character sequence and the security code sequence.
In the embodiment of the invention, the characters in the character sequence and the safety codes in the safety code sequence have a mapping relation, and when the mapping relation is multiple, a mapping relation sequence is formed. Obviously, because the mapping relation sequence is randomly generated, the safety code sequence is actually not unique and is determined by the mapping relation sequence, so that certain uncertainty is provided, and the safety is high.
And S603, sequentially converting the characters into corresponding security code sequences according to the mapping relation sequence according to the character sequence to obtain the security code sequence corresponding to the encrypted item.
In practical application, the characters have strict sequence relationship, and each mapping relationship in the mapping relationship sequence also has sequence relationship, so that the characters need to be converted into corresponding safe codes according to the sequence relationship, and the safe codes can be realized by operation symbols, punctuation marks and other symbols or combinations, and can also be realized in a coding or code form, which is not specifically limited in this embodiment.
S605, locally saving the mapping relation sequence, wherein the mapping relation sequence is associated with the encrypted item and the user.
In the embodiment of the present invention, the encryption operation of the encrypted item is performed locally or on a client authorized by the user, and after the encryption is completed, the mapping relationship sequence needs to be stored in association with the encrypted item and the user, so as to facilitate the reverse decryption in the future.
As shown in fig. 5, as another preferred embodiment of the present invention, the step of generating a random mapping relationship sequence, where the mapping relationship sequence is used to characterize a mapping relationship between a character sequence and a security code sequence, specifically includes:
s6011, setting a character library and n safe code libraries, wherein the safe codes in each safe code library are different, each character in the character library has one and only one safe code in each safe code library corresponding to the character library, and n is a positive integer greater than 1;
in the embodiment of the present invention, the character library at least includes characters and numbers, and even letters, etc., as a preferred example, the character library may be { …, north, kyo, city, sea, lake, district, thistle, gate, bridge, west, earth, city, road, 6, number, … }, etc., and the security code library is a set of security codes, and the security code library is { a1, b1, …, k1 }, { a2, b2, …, k2 }, …, { an, bn, …, kn }.
Preferably, the mapping relationship between the characters and the security codes may be: "North" corresponds to "a 1", "a 2", …, "an", i.e., f 1.
S6013, configuring unique mapping relations for each character in the character library and each safety code library in each safety code library respectively, wherein each character in the character library has n mapping relations of f1, f2, … and fn.
In the embodiment of the present invention, n types of mapping relationships of "north" exist in the above preferred cases, and n types of mapping relationships of "north" are f1, f2, …, and fn, and similarly, n types of mapping relationships of "kyo" are f1, f2, …, and fn.
S6015, the mapping relation is randomly selected for each character in sequence, and a mapping relation sequence is obtained.
In practical application, the embodiment of the invention takes north as an example, the mapping relationship is set as f2, and the mapping relationship of kyo is set as f1, until all character strings of { north, kyo, city, sea, lake, district, thistle, gate, bridge, west, earth, city, road, 6, number } are set, and the mapping relationship sequence can be obtained.
Correspondingly, the mapping relation sequence corresponding to { north, kyo, city, sea, lake, district, thistle, gate, bridge, west, soil, city, road, 6, number } may be { f2, f1, f3, f5, f6, f4, f2, f1, f3, f7, f9, f12, f17, f15, f1 }, so that the obtained security code sequence is { a2, b1, c3, d5, e6, f4, g2, h1, i3, j7, k9, l12, m17, n15, o1 }, and the default security code of "beijing haimen district jimen bridge west soil city road No. 6" is "cdefghijjno".
As shown in fig. 6, as another preferred embodiment of the present invention, the step of storing the obtained physical examination data into a block chain specifically includes:
s801, writing the physical examination data into corresponding partitions of the block chain.
In the embodiment of the present invention, the essence of the block chain is a shared database, and the data or information stored in the shared database has characteristics of being not counterfeitable, and the data related to the user privacy may be stored in a partition with a higher protection authority, for example, the block chain may be partitioned into a general partition, a low-authority partition, a high-authority partition, and the like, and this embodiment is not limited specifically herein.
And S803, after the writing is successful, returning the corresponding partition address to the user.
In the embodiment of the invention, after the physical examination data is successfully stored, the corresponding storage position or address is fed back to the user, so that the subsequent processing and the like are facilitated.
As another preferred embodiment of the present invention, as shown in fig. 7, the method further comprises the steps of:
s100, when physical examination data in the block chain receives an access request, the access request is verified.
In practical application, because the block chain is equivalent to a shared data platform, the physical examination data of the user can be actually read, transferred or downloaded by other users, and in order to protect the security of the encrypted items in the physical examination data, the access requests of other users need to be verified.
S300, when the physical examination data is read, transferred or downloaded, user information contained in the access request is obtained.
In the embodiment of the invention, after the physical examination data is read, transferred or downloaded, and the like, the user information is acquired at the moment because the access request contains the user information, so that the subsequent processing is facilitated.
And S500, recording or storing the user information contained in the access request into a request record, wherein the request record is associated with the user uploading the physical examination data.
In the embodiment of the invention, the request record can record user information in all the access requests, the user can check the condition that the physical examination data of the user is read, transferred or downloaded, and when the user finds that the data of the encrypted item in the physical examination report is leaked, the user can trace back according to the request record.
The embodiment of the invention discloses a physical examination data security storage method based on a block chain, which can encrypt some classified items related to personal information of a user in a targeted manner on the premise of realizing data sharing, and encrypt encrypted items locally through a randomly generated mapping relation sequence.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. A physical examination data safe storage method based on a block chain is characterized by comprising the following steps:
performing attribute analysis on physical examination data of a user to determine an encrypted item in the physical examination data, wherein the encrypted item at least comprises a name, an identity card number, an address and a contact way of the user;
converting the information in each encrypted item into a corresponding character string, wherein the character string is a sequence consisting of characters;
sequentially converting each character in the character string into a safety code according to a randomly generated mapping relation sequence, so that an encrypted item in the physical examination data is converted into a safety code sequence, wherein the mapping relation sequence is used for representing the mapping relation between the character sequence and the safety code sequence;
and storing the obtained physical examination data into a block chain.
2. The method as claimed in claim 1, wherein the step of performing attribute analysis on the physical examination data of the user to determine an encrypted item in the physical examination data, wherein the encrypted item at least includes a name, an identification number, an address and a contact address of the user includes:
acquiring physical examination data of a user;
identifying physical examination data of a user to determine various classification items of the physical examination data;
judging whether the classification items meet preset encryption conditions or not, and dividing the classification items into encryption items when the classification items meet the preset encryption conditions.
3. The method as claimed in claim 1, wherein the step of converting the information in each encrypted item into a corresponding character string, where the character string is a sequence of characters, specifically includes:
extracting information in the encrypted item, wherein the information at least comprises one of literal information and numerical information, and the basic composition unit of the information is a character;
and arranging the characters according to the original sequence to obtain a character string.
4. The block chain-based physical examination data secure storage method of claim 1, wherein according to a mapping relationship sequence generated randomly, each character in a character string is sequentially converted into a secure code in order, so that an encrypted item in the physical examination data is converted into a secure code sequence, and the mapping relationship sequence is used for representing a mapping relationship between the character sequence and the secure code sequence, and specifically includes:
generating a random mapping relation sequence, wherein the mapping relation sequence is used for representing the mapping relation between the character sequence and the safety code sequence;
sequentially converting the characters into corresponding security code numbers according to the sequence of the mapping relation according to the sequence of the characters to obtain a security code number sequence corresponding to the encrypted item;
and locally storing the mapping relation sequence, wherein the mapping relation sequence is associated with the encrypted item and the user.
5. The method as claimed in claim 4, wherein the step of generating a random mapping relationship sequence, where the mapping relationship sequence is used to characterize a mapping relationship between a character sequence and a security code sequence, specifically comprises:
setting a character library and n safe code libraries, wherein the safe codes in each safe code library are different, each character in the character library has only one safe code corresponding to the character in each safe code library, and n is a positive integer greater than 1;
respectively configuring a unique mapping relation for each character in the character library and each safe code library in each safe code library;
and randomly selecting a mapping relation for each character in sequence to obtain a mapping relation sequence.
6. The method as claimed in claim 1, wherein the step of storing the physical examination data into the blockchain specifically includes:
writing the physical examination data into a corresponding partition of a block chain;
and after the writing is successful, returning the corresponding partition address to the user.
7. The method for safely storing physical examination data based on a blockchain as claimed in claim 1, 2, 3, 4, 5 or 6, wherein the method further comprises the following steps:
when physical examination data in the block chain receives an access request, verifying the access request;
when the physical examination data is read, transferred or downloaded, user information contained in an access request is acquired;
recording or storing the user information contained in the access request into a request record, wherein the request record is associated with the user who uploads the physical examination data.
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