CN114254365A - Block chain technology-based key value data directional sharing method, device, system and storage medium - Google Patents
Block chain technology-based key value data directional sharing method, device, system and storage medium Download PDFInfo
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Abstract
The invention discloses a method, a device and a system for directionally sharing key value data based on a block chain technology and a storage medium, wherein the method is used for encrypting a value of a key value pair to be shared according to a preset encryption algorithm to obtain first encrypted data; then, acquiring an identity and a public key of the object to be shared, and performing asymmetric encryption on the encryption key of the first encrypted data by using the public key of the object to be shared to obtain second encrypted data; and finally, storing the key value of the key value pair to be shared, the identity of the object to be shared, the first encrypted data and the second encrypted data on a block chain network, and taking the key value of the key value pair and the identity of the object to be shared as indexes for acquiring the first encrypted data and the second encrypted data from the block chain. Therefore, the method and the device can acquire the encrypted data through the identity identification and the public key value of the object to be shared and decrypt the encrypted data through the private key of the object to be shared, so that the directionally shared data is acquired.
Description
Technical Field
The present invention relates to a blockchain technology, and in particular, to a method, an apparatus, a system, and a storage medium for directionally sharing key value data based on a blockchain technology.
Background
At present, a block chain underlying platform generally adopts a key value pair storage structure, and has the advantage of extremely high concurrent read-write performance. Each key in the key value pair corresponds to a unique value, and the value can be a simple value or complex data consisting of a group of key value pairs. During query, as long as the key value is known, the corresponding value can be obtained, that is, once the key value is revealed or disclosed, the value is necessarily revealed or disclosed; although the key value acquisition right can be set in the service level to reduce the risk of data leakage, the problem of data leakage risk cannot be fundamentally solved, and therefore, a technical scheme for directionally sharing key value data to a designated user based on a block chain is needed to be designed for a storage structure of a key value pair.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention aims to: the key value is publicly inquired, but the value is encrypted and can be decrypted only by a specified user, so that the aim of directionally sharing the data is fulfilled.
In order to achieve the purpose, the invention provides the following technical scheme:
a key value data directional sharing method based on a block chain technology is characterized by comprising the following steps:
acquiring a key value pair to be shared, and encrypting a value of the key value pair according to a preset encryption algorithm to obtain first encrypted data;
acquiring an identity and a public key of an object to be shared, and performing asymmetric encryption on an encryption key of the first encrypted data by using the public key of the object to be shared to obtain second encrypted data;
storing the key value of the key value pair, the identity of the object to be shared, the first encrypted data and the second encrypted data on a blockchain network; and the key value of the key value pair and the identity of the object to be shared are used as indexes for acquiring the first encrypted data and the second encrypted data from the block chain.
According to a specific implementation mode, in the key value data directional sharing method based on the blockchain technology, when the value of the key value pair is encrypted, if the value comprises a plurality of transactions, the transaction to be shared is encrypted according to a preset first encryption algorithm to obtain the first encrypted data, and other transactions are encrypted according to a preset second encryption algorithm.
According to a specific implementation manner, in the key value data directional sharing method based on the blockchain technology, after the key value of the key value pair, the identity of the object to be shared, the first encrypted data and the second encrypted data are stored on a blockchain network, a prompt is sent to the object to be shared according to the identity of the object to be shared, so that the object to be shared can obtain the shared key value data.
According to a specific implementation manner, in the key value data directional sharing method based on the block chain technology, the preset encryption algorithm is a random symmetric encryption algorithm.
In another aspect of this particular embodiment of the present invention, there is also provided an apparatus comprising:
the first encryption module is used for encrypting the value of the key value pair to be shared according to a preset encryption algorithm to obtain first encrypted data;
the second encryption module is used for asymmetrically encrypting the encryption key of the first encrypted data by using the public key of the object to be shared to obtain second encrypted data;
the uplink module is used for storing the key value of the key value pair, the identity of the object to be shared, the first encrypted data and the second encrypted data on a block chain network; and the key value of the key value pair and the identity of the object to be shared are used as indexes for acquiring the first encrypted data and the second encrypted data from the block chain.
According to a specific implementation manner, in the apparatus of the present invention, the second encryption module is configured to encrypt the transaction to be shared according to a preset first encryption algorithm when the value of the key-value pair to be shared includes multiple transactions, and encrypt the other transactions according to a preset second encryption algorithm.
According to a particular embodiment, the device of the invention further comprises: and the reminding module is used for sending a reminder to the object to be shared according to the identity of the object to be shared after the uplink module successfully stores the key value of the key value pair, the identity of the object to be shared, the first encrypted data and the second encrypted data in a block chain network, so that the object to be shared can obtain the shared key value data.
In another aspect of this particular implementation of the present invention, there is also provided a system, comprising: the system comprises at least one block chain network and a plurality of client terminals capable of performing data interaction with the block chain networks; wherein,
the client terminal serving as a sharing party is used for acquiring a key value pair to be shared and encrypting a value of the key value pair according to a preset encryption algorithm to obtain first encrypted data; acquiring an identity and a public key of an object to be shared, and performing asymmetric encryption on an encryption key of the first encrypted data by using the public key of the object to be shared to obtain second encrypted data; storing the key value of the key value pair, the identity of the object to be shared, the first encrypted data and the second encrypted data on a block chain network; the key value of the key value pair and the identity of the object to be shared are used as indexes for acquiring the first encrypted data and the second encrypted data from a block chain;
and the client terminal as a shared party is used for acquiring the first encrypted data and the second encrypted data from the block chain by using the key value of the key value pair and the identity of the object to be shared as indexes, decrypting the second encrypted data through a private key of the second encrypted data to obtain an encryption key of the first encrypted data, and further decrypting the first encrypted data through the encryption key of the first encrypted data to acquire shared key value data.
According to a specific implementation manner, in the system of the present invention, the client terminal as the sharing party is further configured to send the key value of the key value pair, the identity of the object to be shared, the first encrypted data, and the second encrypted data to the object to be shared after being successfully stored in the blockchain network.
In another embodiment of the present invention, a computer-readable storage medium is provided, on which one or more programs are stored, where the one or more programs, when executed by one or more processors, implement the method for directionally sharing key-value data based on blockchain technology according to the present invention.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a key value data directional sharing method based on a block chain technology, which comprises the steps of firstly encrypting a value of a key value pair to be shared according to a preset encryption algorithm to obtain first encrypted data; then, acquiring an identity and a public key of the object to be shared, and performing asymmetric encryption on the encryption key of the first encrypted data by using the public key of the object to be shared to obtain second encrypted data; and finally, storing the key value of the key value pair to be shared, the identity of the object to be shared, the first encrypted data and the second encrypted data on a block chain network, and taking the key value of the key value pair and the identity of the object to be shared as indexes for acquiring the first encrypted data and the second encrypted data from the block chain. Therefore, the method and the device can acquire the encrypted data through the identity identification and the public key value of the object to be shared and decrypt the encrypted data through the private key of the object to be shared, so that the directionally shared data is acquired.
Drawings
Fig. 1 is a schematic flow chart of a key value data directional sharing method based on a block chain technology according to the present invention;
FIG. 2 is a schematic diagram of the structure of the apparatus of the present invention;
FIG. 3 is a schematic diagram of the system of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
As shown in fig. 1, the method for directionally sharing key value data based on the blockchain technology of the present invention includes the following steps:
firstly, obtaining a key value pair to be shared, and encrypting a value of the key value pair according to a preset encryption algorithm to obtain first encrypted data;
acquiring an identity and a public key of an object to be shared, and performing asymmetric encryption on an encryption key of the first encrypted data by using the public key of the object to be shared to obtain second encrypted data;
storing the key value of the key value pair, the identity of the object to be shared, the first encrypted data and the second encrypted data on a blockchain network; and the object to be shared obtains the first encrypted data and the second encrypted data from the blockchain through the identity of the object to be shared and the key value of the key value pair, decrypts the second encrypted data through a private key of the object to be shared to obtain an encryption key of the first encrypted data, and further decrypts the first encrypted data through the encryption key of the first encrypted data to obtain a value of the key value pair.
In a specific blockchain service scene, a value is composed of complex data composed of a group of key value pairs, for example, the complex data includes multiple transactions, and if the complex data directly passes through a keyword key, all transactions included in the value are read, so that in order to share only some transactions in the value, the transactions to be shared are encrypted according to a preset first encryption algorithm to obtain first encrypted data, and other transactions are encrypted according to a preset second encryption algorithm. In the implementation, in the key value data directional sharing method based on the block chain technology, the preset encryption algorithm is a random symmetric encryption algorithm, such as 3DES, AES, Blowfish, IDEA, RC5, RC6, and the like.
Specifically, after the key value of the key value pair, the identity of the object to be shared, the first encrypted data and the second encrypted data are stored in a block chain network, a prompt is sent to the object to be shared according to the identity of the object to be shared, so that the object to be shared obtains the shared key value data. For example, the identity of the object to be shared can be associated with a telephone, a mailbox or a communication software account, and a prompt can be sent out directly; the reminding content can comprise public key values, block chain network identifications and the like. The block chain network identifier is used for distinguishing different block chain networks when a plurality of block chain networks supporting data sharing exist, so that a user can conveniently acquire data; moreover, the introduction of a plurality of blockchain networks means that more blockchain infrastructure service providers are added, so that data sharing among users is more conveniently realized.
As shown in fig. 2, the apparatus of the present invention comprises:
the first encryption module is used for encrypting the value of the key value pair to be shared according to a preset encryption algorithm to obtain first encrypted data;
the second encryption module is used for asymmetrically encrypting the encryption key of the first encrypted data by using the public key of the object to be shared to obtain second encrypted data;
the uplink module is used for storing the key value of the key value pair, the identity of the object to be shared, the first encrypted data and the second encrypted data on a block chain network; and the key value of the key value pair and the identity of the object to be shared are used as indexes for acquiring the first encrypted data and the second encrypted data from the block chain.
Specifically, the second encryption module is configured to encrypt the transaction to be shared according to a preset first encryption algorithm when the value of the key value pair to be shared includes multiple transactions, and encrypt other transactions according to a preset second encryption algorithm.
In practice, the apparatus of the invention further comprises: and the reminding module is used for sending a reminder to the object to be shared according to the identity of the object to be shared after the uplink module successfully stores the key value of the key value pair, the identity of the object to be shared, the first encrypted data and the second encrypted data in a block chain network, so that the object to be shared can obtain the shared key value data.
As shown in fig. 3, the system of the present invention includes: the system comprises N blockchain networks and N client terminals capable of performing data interaction with the blockchain networks; wherein,
the client terminal serving as a sharing party is used for acquiring a key value pair to be shared and encrypting a value of the key value pair according to a preset encryption algorithm to obtain first encrypted data; acquiring an identity and a public key of an object to be shared, and performing asymmetric encryption on an encryption key of the first encrypted data by using the public key of the object to be shared to obtain second encrypted data; storing the key value of the key value pair, the identity of the object to be shared, the first encrypted data and the second encrypted data on a block chain network; the key value of the key value pair and the identity of the object to be shared are used as indexes for acquiring the first encrypted data and the second encrypted data from a block chain;
and the client terminal as a shared party is used for acquiring the first encrypted data and the second encrypted data from the block chain by using the key value of the key value pair and the identity of the object to be shared as indexes, decrypting the second encrypted data through a private key of the second encrypted data to obtain an encryption key of the first encrypted data, and further decrypting the first encrypted data through the encryption key of the first encrypted data to acquire shared key value data.
In implementation, the client terminal serving as a sharing party is further configured to send the key value of the key value pair, the identity of the object to be shared, the first encrypted data, and the second encrypted data to the object to be shared after being successfully stored in a blockchain network; the block chain network identifier is used for distinguishing different block chain networks when a plurality of block chain networks supporting data sharing exist, so that a user can conveniently acquire data; moreover, the introduction of a plurality of blockchain networks means that more blockchain infrastructure service providers are added, so that the selection of users is increased, and the experience of data sharing among the users can be improved.
In another embodiment of the present invention, a computer-readable storage medium is provided, on which one or more programs are stored, and the one or more programs, when executed by one or more processors, implement the key-value data directional sharing method based on the blockchain technology according to the present invention.
It should be understood that the disclosed system may be implemented in other ways. For example, the division of the modules into only one logical function may be implemented in another way, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the communication connection between the modules may be an indirect coupling or communication connection through some interfaces, devices or units, and may be electrical or in other forms.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Claims (10)
1. A key value data directional sharing method based on a block chain technology is characterized by comprising the following steps:
acquiring a key value pair to be shared, and encrypting a value of the key value pair according to a preset encryption algorithm to obtain first encrypted data;
acquiring an identity and a public key of an object to be shared, and performing asymmetric encryption on an encryption key of the first encrypted data by using the public key of the object to be shared to obtain second encrypted data;
storing the key value of the key value pair, the identity of the object to be shared, the first encrypted data and the second encrypted data on a blockchain network; and the key value of the key value pair and the identity of the object to be shared are used as indexes for acquiring the first encrypted data and the second encrypted data from the block chain.
2. The method for directionally sharing key-value data based on the blockchain technology as claimed in claim 1, wherein when the value of the key-value pair is encrypted, if the value includes a plurality of transactions, the transaction to be shared is encrypted according to a preset first encryption algorithm to obtain the first encrypted data, and other transactions are encrypted according to a preset second encryption algorithm.
3. The directional sharing method of key value data based on the blockchain technology as claimed in claim 2, wherein after the key value of the key value pair, the identity of the object to be shared, the first encrypted data and the second encrypted data are stored on a blockchain network, a reminder is sent to the object to be shared according to the identity of the object to be shared, so that the object to be shared obtains the shared key value data.
4. The method of claim 3, wherein the predetermined encryption algorithm is a random symmetric encryption algorithm.
5. An apparatus, comprising:
the first encryption module is used for encrypting the value of the key value pair to be shared according to a preset encryption algorithm to obtain first encrypted data;
the second encryption module is used for asymmetrically encrypting the encryption key of the first encrypted data by using the public key of the object to be shared to obtain second encrypted data;
the uplink module is used for storing the key value of the key value pair, the identity of the object to be shared, the first encrypted data and the second encrypted data on a block chain network; and the key value of the key value pair and the identity of the object to be shared are used as indexes for acquiring the first encrypted data and the second encrypted data from the block chain.
6. The apparatus of claim 5, wherein the second encryption module is configured to encrypt the transaction to be shared according to a first preset encryption algorithm and encrypt other transactions according to a second preset encryption algorithm when the value of the key-value pair to be shared contains multiple transactions.
7. The apparatus of claim 6, further comprising: and the reminding module is used for sending a reminder to the object to be shared according to the identity of the object to be shared after the uplink module successfully stores the key value of the key value pair, the identity of the object to be shared, the first encrypted data and the second encrypted data in a block chain network, so that the object to be shared can obtain the shared key value data.
8. A system, comprising: the system comprises at least one block chain network and a plurality of client terminals capable of performing data interaction with the block chain networks; wherein,
the client terminal serving as a sharing party is used for acquiring a key value pair to be shared and encrypting a value of the key value pair according to a preset encryption algorithm to obtain first encrypted data; acquiring an identity and a public key of an object to be shared, and performing asymmetric encryption on an encryption key of the first encrypted data by using the public key of the object to be shared to obtain second encrypted data; storing the key value of the key value pair, the identity of the object to be shared, the first encrypted data and the second encrypted data on a block chain network; the key value of the key value pair and the identity of the object to be shared are used as indexes for acquiring the first encrypted data and the second encrypted data from a block chain;
and the client terminal as a shared party is used for acquiring the first encrypted data and the second encrypted data from the block chain by using the key value of the key value pair and the identity of the object to be shared as indexes, decrypting the second encrypted data through a private key of the second encrypted data to obtain an encryption key of the first encrypted data, and further decrypting the first encrypted data through the encryption key of the first encrypted data to acquire shared key value data.
9. The system according to claim 8, wherein the client terminal as the sharing party is further configured to send the key value of the key value pair, the identity of the object to be shared, the first encrypted data, and the second encrypted data to the blockchain network, and then send the blockchain identity of the blockchain network to the object to be shared.
10. A computer-readable storage medium having one or more programs stored thereon, wherein the one or more programs, when executed by one or more processors, implement the method for directionally sharing key-value data based on blockchain techniques as recited in any one of claims 1 to 4.
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