CN110245948A - Data trade method and system based on block chain and asymmetric encryption - Google Patents
Data trade method and system based on block chain and asymmetric encryption Download PDFInfo
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- CN110245948A CN110245948A CN201910445719.9A CN201910445719A CN110245948A CN 110245948 A CN110245948 A CN 110245948A CN 201910445719 A CN201910445719 A CN 201910445719A CN 110245948 A CN110245948 A CN 110245948A
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Abstract
The data trade method and system based on block chain and asymmetric encryption that the invention discloses a kind of, method include: data feed end display data overview；Data general condition is inquired at data requirements end, and proposes that data buy request；Data feed end receives data purchase request, generates one group of public and private key, is encrypted using public key to initial data, and encryption data and corresponding public key are sent to data requirements end；After data requirements termination receives encryption data, formal transaction request is proposed, and be recorded in the distributed account book of block chain；Data feed end inquires formal transaction request, if being confirmed and being confirmed success to transaction according to decrypted private key, decrypted private key is written in distributed account book；Data requirements end obtains decrypted private key, and encryption data is decrypted, and obtains initial data, completes transaction.The present invention passes through the encryption and decryption verifying of the non-repudiation and rivest, shamir, adelman of distributed account book, it is ensured that the security reliability of transaction.
Description
Technical field
The present invention relates to data trade technical fields, and in particular, to a kind of number based on block chain and asymmetric encryption
According to method of commerce and system.
Background technique
With the continuous development of computer hardware technique, the continuous application of big data, internet is from information technology
Epoch, (Information Technology, IT) came the data technique epoch (Data technology, DT).Data at
For the petroleum of this new era, however for single enterprise institution, its own data generated is all often insufficient
To support its application, therefore it has the demand to other mechanism takeover datas.Meanwhile there is also many enterprise institutions in order to get a profit
There is also the demand to other mechanism sales datas, in the case where supplying both sides and existing simultaneously demand, data trade is just spontaneously
And it gives birth to.
In current data trade method, except being traded under non-thread face to face, otherwise due to message authentication in network transmission
Timing, the situation that often all there is " first paying " or " first delivering goods " occur, i.e. a side first pays expense or a Fang Xian provider
Product, there are serious unfairnesses for both parties for this, because defensive position is gone back on one's word will be to elder generation there are biggish defensive position rentability
Hand causes the loss of money or expense.
In order to solve these problems, existing data trade method, generallys use the mode assured by third party, i.e.,
Money or cargo are first met at into third party, it is due-in that money or cargo are supplied to other side again to third party after cargo or payment expense, but
There are biggish limitations for this data trade mode, it is necessary first to third-party authentic authentication, and complete to hand over by third party
Easily there are the modes of centralization, cause the inefficiency of transaction.
Summary of the invention
In view of the foregoing, it is an object to provide a kind of data trade side based on block chain and asymmetric encryption
Method and system, to solve the problems, such as that larger limitation existing for existing data trade method, inefficiency and risk are higher.
To achieve the goals above, the invention adopts the following technical scheme:
The data trade method based on block chain and asymmetric encryption that it is an aspect of the invention to provide a kind of, including with
Lower step:
Step S1, data feed end shows data general condition to be supplied；
Step S2, the data general condition that the data feed end is shown is inquired at data requirements end, and to the data feed end
It is proposed that data buy request；
Step S3, data feed end receives the data purchase request, generates one group of public and private key, uses public key pair and data
Purchase requests corresponding initial data to be encrypted, and encryption data and corresponding public key are sent to data requirements end；
Step S4, after data requirements termination receives the encryption data that data feed end is sent, formal transaction request is proposed,
And it is recorded in the distributed account book of block chain；
Step S5, data feed end inquires the formal transaction request in the distributed account book, if according to it is described just
Formula transaction request provides corresponding decrypted private key and success is confirmed and confirmed to transaction, then the decrypted private key is written and is distributed
In formula account book；
Step S6, data requirements end obtains the decrypted private key that the data feed end provides in the distributed account book,
The encryption data received is decrypted, initial data is obtained, completes transaction.
Preferably, in the step S1, the data feed end is by data general condition show-and-tell to be supplied in P2P network
In.
Preferably, in the step S4, the formal transaction request includes: the digital signature at data requirements end, using receipts
To the public key random string, the Transaction Information that are encrypted, wherein Transaction Information includes: the mark of transaction data, settlement price
Lattice and both parties' information.
Preferably, in the step S5, intelligent contract is called to confirm transaction, wherein the intelligence contract it is defeated
Entering parameter includes: the formal transaction number requested for the private key of ciphertext data, data requirements end.
Preferably, it provides corresponding decrypted private key according to the formal transaction request to confirm transaction, comprising: distribution
Each Node distribution in formula account book independently executes the intelligent contract of calling, decrypts the random string using private key；When
Each independent node decryption success, and result is consistent, then reaches the common recognition of intelligent contract, indicates to trade confirmation success.
Preferably, after data feed end inquires the formal transaction request in the distributed account book, further includes: if
The data feed end does not confirm that then transaction terminates to transaction.
Preferably, after data feed end inquires the formal transaction request in the distributed account book, further includes: if
Corresponding decrypted private key is provided according to formal transaction request, failure is confirmed and confirmed to transaction, then transaction terminates.
Another aspect of the present invention is to provide a kind of data transacting system based on block chain and asymmetric encryption, special
Sign is, comprising: data feed end, block chain network and data requirements end, wherein the data feed end includes:
Data display module shows data general condition to be supplied；
Data transmission blocks receive the data that data requirements end proposes and buy request, generate one group of public and private key, use public key
Initial data corresponding with data purchase request is encrypted, and encryption data and corresponding public key are sent to data
Demand end；
Trade confirmation module inquires the formal transaction request that data requirements end proposes, if according to just in distributed account book
Formula transaction request provides corresponding decrypted private key and success is confirmed and confirmed to transaction, then the decrypted private key is written and is distributed
In formula account book；
The data requirements end includes:
Data demand module proposes that data buy request according to the data general condition that the data feed end inquired is shown；
Data reception module proposes formal transaction request, and remember after receiving the encryption data that data feed end is sent
Record is in the distributed account book of block chain；
Module is completed in transaction, and the decrypted private key that data feed end provides is obtained in the distributed account book, to receiving
Encryption data be decrypted, obtain initial data, complete transaction.
Preferably, the data display module is by data general condition show-and-tell to be supplied in P2P network.
Preferably, the trade confirmation module calls intelligent contract to confirm transaction, wherein the intelligence contract
Input parameter includes: the formal transaction number requested for the private key of ciphertext data, data requirements end.
Compared with prior art, the present invention has the following advantages and beneficial effects:
The present invention passes through distributed account book and rivest, shamir, adelman in block chain technology etc. and completes data feed end
Data trade between data requirements end is not necessarily to third party guarantees, improves the efficiency, confidence level, safety of data trade
And reliability, also, by block chain technology guarantee data trade can not tamper and tractability, can be to the present invention
In the subsequent transaction that is likely to occur do not mentioned evidence is provided.
The present invention proposes link in data trade, and data requirements end discloses data trade to distributed account book, hereafter,
The right of eminent domain to data trade is lost, can not be denied after data feed end provides decrypted private key；It is true in data trade
Recognize link, the decrypted private key provided data feed end has carried out verification of correctness, effectively prevent data feed end to provide invalid
Private key；Which side the fairness for having reached both sides of supply and demand during data trade, can obtain bigger income without.
Method and step of the invention is simple, not cumbersome, can be by data trade one-time-reach-place.
Detailed description of the invention
Fig. 1 is that the present invention is based on the signals of the process of one embodiment of the data trade method of block chain and asymmetric encryption
Figure；
Fig. 2 is that the present invention is based on the signals of the process of another embodiment of the data trade method of block chain and asymmetric encryption
Figure；
Fig. 3 is that the present invention is based on the signals of the process of the another embodiment of the data trade method of block chain and asymmetric encryption
Figure.
Specific embodiment
Embodiment of the present invention described below with reference to the accompanying drawings.Those skilled in the art may recognize that
It arrives, it without departing from the spirit and scope of the present invention, can be with a variety of different modes or combinations thereof to described
Embodiment is modified.Therefore, attached drawing and description are regarded as illustrative in nature, rather than the protection for limiting claim
Range.In addition, in the present specification, attached drawing is drawn not in scale, and identical appended drawing reference indicates identical part.
The present invention is based on block chains and asymmetric encryption techniques to construct the credible fair data trade an of decentralization
Method can solve the problems such as low efficiency, centralization risk in current data transaction are high, both parties' unfair equity.
Fig. 1 is that the present invention is based on the signals of the process of one embodiment of the data trade method of block chain and asymmetric encryption
Figure, as shown in Figure 1, the data trade method of the present invention based on block chain and asymmetric encryption, comprising the following steps:
Step S1, data feed end shows data general condition to be supplied, this data general condition is possessed by data feed end
For the data of sale, simultaneously non-disclosre goes out initial data to data general condition, only reveals out certain features of data to other people with determination
Whether need.
Optionally, the data feed end passes through calling number by data general condition show-and-tell to be supplied in P2P network
It is shown according to function is shown.
Step S2, the data general condition that the data feed end is shown is inquired at data requirements end, and to the data feed end
It is proposed that data buy request, wherein data requirements end inquires required data general condition, just proposes that corresponding data purchase is asked
It asks.
Optionally, data requirements end is received by P2P network channel prepares the data sold by data feed end restocking
Overview is oneself desired data by confirmation, and data purchase function is called to propose that data buy request.
Step S3, data feed end receives the data purchase request, generates one group of public and private key, uses public key pair and data
Purchase requests corresponding initial data to be encrypted, by calling asymmetric public key encryption to realize, and by encryption data and
Corresponding public key is sent to data requirements end, at this point, due to data requirements end and corresponding decrypted private key has not been obtained, can not decrypt
Initial data is obtained, also, the public and private key generated is only used for this data trade, it in this way can be close to avoid reusing one group
Key protects the safety traded each time.
Data feed end calls asymmetric cryptographic key generating function, carries out encryption and decryption by rivest, shamir, adelman, non-
Symmetric encipherment algorithm encryption and decryption uses different keys, referred to as public key and private key, only has private key using the data of public key encryption
It can decrypt, due to the asymmetry of key, rivest, shamir, adelman safety with higher, so that data trade is more pacified
Entirely.
Step S4, after data requirements termination receives the encryption data that data feed end is sent, formal transaction function is called,
It is proposed formal transaction request, function sends formal transaction request in P2P network by formally trading, and is recorded in block chain
In distributed account book, the distributed account book technology based on block chain realizes that the distribution of block chain is credible, guarantees data trade
Reliability, can not tamper and tractability, after formal transaction request is recorded in distributed account book, data requirements end
It can not disallow this data trade.Wherein, include the digital signature at data requirements end in formal transaction request, use receipts
To the public key random string, the Transaction Information that are encrypted, wherein Transaction Information includes: the mark of transaction data, settlement price
Lattice and both parties' information, both parties' information refer to the essential information of both parties.Data trade needs are supplied by data
After confirmation should being held, settlement of transactions can be just completed.
Step S5, data feed end inquires the formal transaction request in the distributed account book, if according to it is described just
Formula transaction request provides corresponding decrypted private key and success is confirmed and confirmed to transaction, then the decrypted private key is written and is distributed
In formula account book.
In an optional embodiment of the present invention, in above-mentioned steps S5, intelligent contract is called to confirm transaction,
Wherein, the input parameter of the intelligent contract includes: that the formal transaction requested for the private key of ciphertext data, data requirements end is compiled
Number.
Further, corresponding decrypted private key is provided according to the formal transaction request to confirm transaction, comprising: point
Each Node distribution in cloth account book independently executes the intelligent contract of calling, decrypts the random string using private key；
When each independent node decryption success, and result is consistent, then reaches the common recognition of intelligent contract, indicates to trade confirmation success,
If wherein there is the result of node decryption inconsistent, do not reach the common recognition of intelligent contract, indicates to fail to trade confirmation.By right
The decrypted private key that data feed end provides is verified, and further assures that the safety of transaction, prevents data feed end from providing
False private key.
Transaction is carried out after confirming successfully, data feed end can extract data requirements using formal transaction number at any time
Hold the transaction remuneration of payment.
Fig. 2 is that the present invention is based on the signals of the process of another embodiment of the data trade method of block chain and asymmetric encryption
Figure, as shown in Fig. 2, in another embodiment of the present invention, data feed end inquired in the distributed account book it is described just
After formula transaction request, further includes: if the data feed end provides corresponding decrypted private key pair not according to formal transaction request
Transaction is confirmed that then transaction terminates, the equal free of losses of both parties.
Fig. 3 is that the present invention is based on the signals of the process of the another embodiment of the data trade method of block chain and asymmetric encryption
Figure, as shown in figure 3, in yet another embodiment of the present invention, data feed end inquired in the distributed account book it is described just
After formula transaction request, further includes: confirm simultaneously really if providing corresponding decrypted private key according to formal transaction request to transaction
Recognize unsuccessfully, then transaction terminates, the equal free of losses of both parties.
Step S6, data requirements end obtains the decrypted private key that the data feed end provides in the distributed account book,
It calls asymmetric privacy keys decryption function that the encryption data received is decrypted, obtains initial data, complete transaction, make total
Remuneration is obtained according to feed end, data requirements end obtains data.
A kind of data transacting system based on block chain and asymmetric encryption is additionally provided in the present invention, comprising: data supply
Ying Duan, block chain network and data requirements end, wherein data feed end possesses data, and data requirements end needs to buy data.
Specifically, the data feed end includes:
Data display module shows data general condition to be supplied, and simultaneously non-disclosre goes out initial data to data general condition, only to other people
Certain features of data are revealed out to determine the need for；
Data transmission blocks receive the data that data requirements end proposes and buy request, generate one group of public and private key, use public key
Initial data corresponding with data purchase request is encrypted, and encryption data and corresponding public key are sent to data
Demand end can not decrypt acquisition initial data, also, raw at this point, due to data requirements end and corresponding decrypted private key has not been obtained
At public and private key be only used for this data trade, the peace traded each time can be protected in this way to avoid a group key is reused
Entirely；
Trade confirmation module inquires the formal transaction request that data requirements end proposes, if according to just in distributed account book
Formula transaction request provides corresponding decrypted private key and success is confirmed and confirmed to transaction, then the decrypted private key is written and is distributed
In formula account book；
The data requirements end includes:
Data demand module proposes that data buy request according to the data general condition that the data feed end inquired is shown；
Data reception module proposes formal transaction request, and remember after receiving the encryption data that data feed end is sent
Record is in the distributed account book of block chain；
Module is completed in transaction, and the decrypted private key that data feed end provides is obtained in the distributed account book, to receiving
Encryption data be decrypted, obtain initial data, complete transaction.
In an alternative embodiment of the invention, the data display module exists data general condition show-and-tell to be supplied
In P2P network.
In an alternative embodiment of the invention, the trade confirmation module calls intelligent contract to confirm transaction,
Wherein, the input parameter of the intelligent contract includes: that the formal transaction requested for the private key of ciphertext data, data requirements end is compiled
Number.
Ensure the reliability of data trade by intelligent contract, the formal transaction number in intelligent contract can be used for data
Feed end extracts the corresponding tranaction costs of data requirements end payment.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of data trade method based on block chain and asymmetric encryption, which comprises the following steps:
Step S1, data feed end shows data general condition to be supplied；
Step S2, the data general condition that the data feed end is shown is inquired at data requirements end, and is proposed to the data feed end
Data purchase request；
Step S3, data feed end receives the data purchase request, generates one group of public and private key, is bought using public key pair and data
It requests corresponding initial data to be encrypted, and encryption data and corresponding public key is sent to data requirements end；
Step S4, after data requirements termination receives the encryption data that data feed end is sent, formal transaction request is proposed, and remember
Record is in the distributed account book of block chain；
Step S5, data feed end inquires the formal transaction request in the distributed account book, if according to the formal friendship
The easily corresponding decrypted private key of request offer is confirmed to transaction and is confirmed success, then distributed account is written in the decrypted private key
In this；
Step S6, data requirements end obtains the decrypted private key that the data feed end provides, docking in the distributed account book
The encryption data received is decrypted, and obtains initial data, completes transaction.
2. the data trade method according to claim 1 based on block chain and asymmetric encryption, which is characterized in that described
In step S1, the data feed end is by data general condition show-and-tell to be supplied in P2P network.
3. the data trade method according to claim 1 based on block chain and asymmetric encryption, which is characterized in that described
In step S4, the formal transaction request include: data requirements end digital signature, using the public key received encrypted with
Machine character string, Transaction Information, wherein Transaction Information includes: the mark, transaction value and both parties' information of transaction data.
4. the data trade method according to claim 3 based on block chain and asymmetric encryption, which is characterized in that described
In step S5, intelligent contract is called to confirm transaction, wherein the input parameter of the intelligence contract includes: for decrypting
The formal transaction number that the private key of data, data requirements end are requested.
5. the data trade method according to claim 4 based on block chain and asymmetric encryption, which is characterized in that according to
The formal transaction request provides corresponding decrypted private key and confirms to transaction, comprising:
Each Node distribution in distributed account book independently executes the intelligent contract of calling, decrypts the random words using private key
Symbol string；
When each independent node decryption success, and result is consistent, then reaches the common recognition of intelligent contract, indicate to trade confirmation at
Function.
6. the data trade method according to claim 1 based on block chain and asymmetric encryption, which is characterized in that data
After feed end inquires the formal transaction request in the distributed account book, further includes: if the data feed end is not right
Transaction is confirmed that then transaction terminates.
7. the data trade method according to claim 1 based on block chain and asymmetric encryption, which is characterized in that data
After feed end inquires the formal transaction request in the distributed account book, further includes: if being mentioned according to formal transaction request
Failure is confirmed and confirmed to transaction for corresponding decrypted private key, then transaction terminates.
8. a kind of data transacting system based on block chain and asymmetric encryption characterized by comprising data feed end, area
Block chain network and data requirements end,
Wherein, the data feed end includes:
Data display module shows data general condition to be supplied；
Data transmission blocks, receive data requirements end propose data buy request, generate one group of public and private key, using public key pair with
Data purchase requests corresponding initial data to be encrypted, and encryption data and corresponding public key are sent to data requirements
End；
Trade confirmation module inquires the formal transaction request that data requirements end proposes in distributed account book, if being handed over according to formal
The easily corresponding decrypted private key of request offer is confirmed to transaction and is confirmed success, then distributed account is written in the decrypted private key
In this；
The data requirements end includes:
Data demand module proposes that data buy request according to the data general condition that the data feed end inquired is shown；
Data reception module proposes formal transaction request, and be recorded in after receiving the encryption data that data feed end is sent
In the distributed account book of block chain；
It trades and completes module, the decrypted private key that data feed end provides is obtained in the distributed account book, is added to what is received
Ciphertext data is decrypted, and obtains initial data, completes transaction.
9. the data transacting system according to claim 8 based on block chain and asymmetric encryption, which is characterized in that described
Data display module is by data general condition show-and-tell to be supplied in P2P network.
10. the data transacting system according to claim 8 based on block chain and asymmetric encryption, which is characterized in that institute
Stating trade confirmation module calls intelligent contract to confirm transaction, wherein the input parameter of the intelligence contract includes: to be used for
The formal transaction number that the private key of ciphertext data, data requirements end are requested.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111310219A (en) * | 2020-03-06 | 2020-06-19 | 广东工业大学 | Supply chain encryption bargaining method and system |
| CN111400756A (en) * | 2020-03-13 | 2020-07-10 | 杭州复杂美科技有限公司 | Private data uplink method, device and storage medium |
| CN111586015A (en) * | 2020-04-29 | 2020-08-25 | 陈议尊 | Sha256 algorithm-based block chain supply and demand transaction method and system |
| CN111683064A (en) * | 2020-05-22 | 2020-09-18 | 易联众信息技术股份有限公司 | Block chain-based data transfer method, device, medium, equipment and application |
| CN111738704A (en) * | 2020-05-29 | 2020-10-02 | 易联众信息技术股份有限公司 | Donation data processing method and device based on block chain and readable medium |
| WO2022222163A1 (en) * | 2021-04-23 | 2022-10-27 | 清华大学 | Data processing method and apparatus, and storage medium |
| CN115580484A (en) * | 2022-11-15 | 2023-01-06 | 国网智能电网研究院有限公司 | Safe joint calculation method and system applicable to energy consumption data and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107464118A (en) * | 2017-08-16 | 2017-12-12 | 济南浪潮高新科技投资发展有限公司 | A kind of data trade method based on block chain intelligence contract |
| US20180167394A1 (en) * | 2016-12-14 | 2018-06-14 | Wal-Mart Stores, Inc. | Controlling access to a locked space using cryptographic keys stored on a blockchain |
| CN108681898A (en) * | 2018-05-15 | 2018-10-19 | 广东工业大学 | A kind of data trade method and system based on block chain |
| CN109462588A (en) * | 2018-11-13 | 2019-03-12 | 上海物融智能科技有限公司 | A kind of decentralization data trade method and system based on block chain |
| CN109509099A (en) * | 2018-12-27 | 2019-03-22 | 石更箭数据科技(上海)有限公司 | Data trade method and device calculates equipment, storage medium |
| CN109636610A (en) * | 2019-02-01 | 2019-04-16 | 中国科学院合肥物质科学研究院 | A kind of data transacting system and method for decentralization |
| CN109754249A (en) * | 2018-12-27 | 2019-05-14 | 石更箭数据科技(上海)有限公司 | Data trade method and system, platform, storage medium |
-
2019
- 2019-05-27 CN CN201910445719.9A patent/CN110245948A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180167394A1 (en) * | 2016-12-14 | 2018-06-14 | Wal-Mart Stores, Inc. | Controlling access to a locked space using cryptographic keys stored on a blockchain |
| CN107464118A (en) * | 2017-08-16 | 2017-12-12 | 济南浪潮高新科技投资发展有限公司 | A kind of data trade method based on block chain intelligence contract |
| CN108681898A (en) * | 2018-05-15 | 2018-10-19 | 广东工业大学 | A kind of data trade method and system based on block chain |
| CN109462588A (en) * | 2018-11-13 | 2019-03-12 | 上海物融智能科技有限公司 | A kind of decentralization data trade method and system based on block chain |
| CN109509099A (en) * | 2018-12-27 | 2019-03-22 | 石更箭数据科技(上海)有限公司 | Data trade method and device calculates equipment, storage medium |
| CN109754249A (en) * | 2018-12-27 | 2019-05-14 | 石更箭数据科技(上海)有限公司 | Data trade method and system, platform, storage medium |
| CN109636610A (en) * | 2019-02-01 | 2019-04-16 | 中国科学院合肥物质科学研究院 | A kind of data transacting system and method for decentralization |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111310219A (en) * | 2020-03-06 | 2020-06-19 | 广东工业大学 | Supply chain encryption bargaining method and system |
| CN111310219B (en) * | 2020-03-06 | 2023-04-28 | 广东工业大学 | Encryption bargaining method and system for supply chain |
| CN111400756A (en) * | 2020-03-13 | 2020-07-10 | 杭州复杂美科技有限公司 | Private data uplink method, device and storage medium |
| CN111586015A (en) * | 2020-04-29 | 2020-08-25 | 陈议尊 | Sha256 algorithm-based block chain supply and demand transaction method and system |
| CN111586015B (en) * | 2020-04-29 | 2023-05-12 | 陈议尊 | Block chain supply and demand transaction method and system based on sha256 algorithm |
| CN111683064A (en) * | 2020-05-22 | 2020-09-18 | 易联众信息技术股份有限公司 | Block chain-based data transfer method, device, medium, equipment and application |
| CN111738704A (en) * | 2020-05-29 | 2020-10-02 | 易联众信息技术股份有限公司 | Donation data processing method and device based on block chain and readable medium |
| WO2022222163A1 (en) * | 2021-04-23 | 2022-10-27 | 清华大学 | Data processing method and apparatus, and storage medium |
| CN115580484A (en) * | 2022-11-15 | 2023-01-06 | 国网智能电网研究院有限公司 | Safe joint calculation method and system applicable to energy consumption data and storage medium |
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