CN111259413A - Data management method and device based on block chain - Google Patents
Data management method and device based on block chain Download PDFInfo
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- CN111259413A CN111259413A CN202010024400.1A CN202010024400A CN111259413A CN 111259413 A CN111259413 A CN 111259413A CN 202010024400 A CN202010024400 A CN 202010024400A CN 111259413 A CN111259413 A CN 111259413A
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- encrypted data
- check code
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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
- G06F21/602—Providing cryptographic facilities or services
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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
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
Abstract
The invention discloses a data management method and a device based on a block chain, wherein the method comprises the following steps: receiving encrypted data uploaded by a user, and verifying the encrypted data by using a verification algorithm to generate a verification code; inserting a check code into the encrypted data, and writing the encrypted data into a node on a block chain; receiving a data access request input by a user, verifying the check code of the encrypted data in the nodes on the block chain, deleting the check code of the encrypted data if the verification is successful, and reading the encrypted data of which the check code is deleted. The method improves the safety of data uploading and reading in the block chain.
Description
Technical Field
The present invention relates to the field of data processing technologies, and in particular, to a block chain-based data management method and apparatus.
Background
With the rapid development of blockchain technology, there is a threat to data in many aspects, and whether the process of uploading or reading data becomes unsafe, the data is likely to be lost or tampered. In order to avoid the risks, many blockchain products use hardware private key storage equipment, so that the process of accessing data uplink is not touched, and the data security is ensured.
At present, the cold wallet is a related invention which typically uses a hardware private key storage technology in recent years, the storage function of the cold wallet is similar to that of a hard disk, but in the transaction, a payment password is needed, a strong seed password is randomly generated to obtain a private key and an address, and each transaction is subjected to digital signature remarking and is ready to be checked. The cold wallet is mainly used for the secure storage and transaction of digital assets, and cannot be applied to wider scenes, and particularly in wider application fields such as data security and access right control, related technologies are yet to be researched. Meanwhile, when the cold wallet is used for creating the wallet, the private key backup is quite troublesome, two persons far away and credible from each other are firstly found, and the traffic modes cannot be consistent, so that the financial and material expenses are increased. The cold wallet avoids the risk of stealing the private key by a hacker, but may face physical security risks, such as computer loss and damage, which brings great inconvenience to the application landing of non-digital assets.
Therefore, how to improve the security of data uploading and reading in the blockchain is an urgent problem to be solved.
Disclosure of Invention
The invention aims to provide a data management method and device based on a block chain, so as to improve the security of data uploading and reading in the block chain.
In order to solve the above technical problem, the present invention provides a data management method based on a block chain, including:
receiving encrypted data uploaded by a user, and verifying the encrypted data by using a verification algorithm to generate a verification code;
inserting a check code into the encrypted data, and writing the encrypted data into a node on a block chain;
receiving a data access request input by a user, verifying the check code of the encrypted data in the nodes on the block chain, deleting the check code of the encrypted data if the verification is successful, and reading the encrypted data of which the check code is deleted.
Preferably, the check algorithm includes a hash algorithm or a parity algorithm.
Preferably, the verifying the check code of the encrypted data in the node on the block chain, and if the verification is successful, deleting the check code of the encrypted data, and reading the encrypted data from which the check code is deleted includes:
and verifying the check code of the encrypted data, verifying whether the encrypted data contains the verification code, if so, deleting the check code in the encrypted data, and reading the encrypted data with the deleted check code.
Preferably, the method further comprises:
and if the verification fails, modifying the encrypted data to ensure that the modified encrypted data is the same as the encrypted data in the writing process, and reading out the modified encrypted data.
The invention also provides a data management device based on the block chain, which is used for realizing the method and comprises the following steps:
the verification module is used for receiving encrypted data uploaded by a user, verifying the encrypted data by using a verification algorithm and generating a verification code;
a write-in module, configured to insert a check code into the encrypted data, and write the encrypted data into a node on a block chain;
and the reading module is used for receiving a data access request input by a user, verifying the check code of the encrypted data in the node on the block chain, deleting the check code of the encrypted data if the verification is successful, and reading the encrypted data of which the check code is deleted.
Preferably, the check algorithm includes a hash algorithm or a parity algorithm.
Preferably, the reading module is specifically configured to receive a data access request input by a user, verify a check code of the encrypted data, verify whether the encrypted data contains the check code, delete the check code in the encrypted data if yes, and read the encrypted data from which the check code is deleted.
Preferably, the reading module further includes:
and the modifying unit is used for modifying the encrypted data if the verification fails, so that the modified encrypted data is the same as the encrypted data in the writing process, and reading out the modified encrypted data.
The invention provides a data management method and device based on a block chain, which are characterized in that encrypted data uploaded by a user are received, the encrypted data are verified by using a verification algorithm, and a verification code is generated; inserting a check code into the encrypted data, and writing the encrypted data into a node on a block chain; receiving a data access request input by a user, verifying the check code of the encrypted data in the nodes on the block chain, deleting the check code of the encrypted data if the verification is successful, and reading the encrypted data of which the check code is deleted. Therefore, the encrypted data is verified by using a verification algorithm to generate a verification code, the verification code is inserted into the encrypted data to be stored together, when the data is read, the verification code is deleted after the verification is successful, the original encrypted data is obtained, the verification code is added and verified to ensure that the read encrypted data is completely consistent with the written encrypted data, the encrypted data in the block chain is protected, and the data uploading and reading safety in the block chain is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a block chain-based data management method according to the present invention;
fig. 2 is a schematic structural diagram of a data management apparatus based on a block chain according to the present invention.
Detailed Description
The core of the invention is to provide a data management method and device based on a block chain, so as to improve the security of data uploading and reading in the block chain.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of a block chain-based data management method according to the present invention, including the following steps:
s11: receiving encrypted data uploaded by a user, and verifying the encrypted data by using a verification algorithm to generate a verification code;
s12: inserting a check code into the encrypted data, and writing the encrypted data into a node on the block chain;
s13: and receiving a data access request input by a user, verifying the check code of the encrypted data in the nodes on the block chain, deleting the check code of the encrypted data if the verification is successful, and reading the encrypted data of which the check code is deleted.
Therefore, the method verifies the encrypted data by using a verification algorithm to generate a verification code, inserts the verification code into the encrypted data to be stored together, deletes the verification code after the verification is successful when the data is read to obtain the original encrypted data, adds and verifies the verification code to ensure that the read-out encrypted data is completely consistent with the written-in encrypted data, further protects the encrypted data in the block chain, and improves the data uploading and reading safety in the block chain.
The process of inserting the check code into the encrypted data specifically comprises the following steps: an 8-bit byte check code is added to a 512-byte data block of encrypted data. Specifically, if the written encrypted data is composed of three data blocks a1, a2, and A3, and the check code is CC, the check code CC is added after the data block a1, the check code CC is added after the data block a2, the check code CC is added after the data block A3, and then each piece of data after the code is added is integrated, then each piece of data after the verification code is added is followed by one verification code CC, that is, each piece of data is added with the corresponding check code CC.
Based on the method, further, the check algorithm comprises a hash algorithm or a parity check algorithm.
The encrypted data can be verified by utilizing a Hash algorithm to generate a check code, and the check code is inserted into the encrypted data, so that the data is protected by utilizing the check code, and the integrity of the data is ensured.
Further, in step S13, the verification of the check code is performed on the encrypted data in the node on the blockchain, and if the verification is successful, the check code in the encrypted data is deleted, and the process of reading the encrypted data from which the check code is deleted specifically includes: and verifying the check code of the encrypted data, verifying whether the encrypted data contains the verification code, if so, deleting the check code in the encrypted data, and reading the encrypted data of which the check code is deleted.
Further, the method comprises the following steps:
s21: and if the verification fails, modifying the encrypted data to ensure that the modified encrypted data is the same as the encrypted data in the writing process, and reading out the modified encrypted data.
When a user needs to read the encrypted data in the block chain, the check code is deleted after the check code is successfully verified, the correct encrypted data is read, if the verification fails, the data is damaged, the data is modified, the modified encrypted data is the same as the encrypted data during writing, and therefore the integrity and consistency of the read data and the written data are ensured,
the verification code is added into the uploaded encrypted data, so that the data can be ensured to be correct, when the data are written into a block chain node, the data are verified through a Hash algorithm, the 8-bit verification code is added into the row and the column of the data block of the encrypted data and then stored, when the data need to be read, the verification code is verified, and the verification code is deleted to be read out as normal data. The method can not only verify the read/write operation, but also ensure the data integrity in the data transmission path.
The method for protecting data by using check codes mainly comprises the following three processes: and adding a check code, verifying the check code and deleting the check code. The method comprises the following specific steps:
before user data enters a block chain node, verifying encrypted data to be written by utilizing a Hash algorithm, generating a check code, simultaneously inserting the check code into a data block, and following a rule that 8-bit byte check codes are inserted into data of every 512 bytes. After the check code is inserted, when the data is written into the block chain node, the check code verification is carried out on the data so as to ensure the integrity of the data written into the node. When a user needs to read data, the data is read out from the node after the check code verification is carried out on the data, if the data is correct, the check code is deleted, the original encrypted data is sent into the link, and the original encrypted data is read. If the data is incorrect, namely the verification fails, the data is damaged, the data is modified, the modified data is the same as the data during writing, and the integrity and consistency of the read data and the written data are ensured. The addition and verification of the check code are carried out to ensure that the read-out encrypted data is completely consistent with the written-in encrypted data, so that the data is protected, and the integrity of the data in a transmission path can be ensured.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a block chain-based data management apparatus for implementing the method according to the present invention, the apparatus including:
the verification module 101 is configured to receive encrypted data uploaded by a user, verify the encrypted data by using a verification algorithm, and generate a verification code;
a writing module 102, configured to insert a check code into the encrypted data, and write the encrypted data into a node on the block chain;
the reading module 103 is configured to receive a data access request input by a user, perform check code verification on encrypted data in a node on the block chain, delete a check code in the encrypted data if verification is successful, and read the encrypted data from which the check code is deleted.
Therefore, the loading method verifies the encrypted data by using a verification algorithm to generate a verification code, meanwhile, the verification code is inserted into the encrypted data to be stored together, when the data is read, the verification code is deleted after the verification is successful to obtain the original encrypted data, the verification code is added and verified to ensure that the read-out encrypted data is completely consistent with the written-in encrypted data, the encrypted data in the block chain is protected, and the data uploading and reading safety in the block chain is improved.
Based on the above device, further, the check algorithm includes a hash algorithm or a parity check algorithm.
Further, the reading module is specifically configured to receive a data access request input by a user, verify a check code of the encrypted data, verify whether the encrypted data contains the check code, delete the check code in the encrypted data if yes, and read the encrypted data from which the check code is deleted.
Further, the reading module further comprises: and the modification unit is used for modifying the encrypted data if the verification fails, so that the modified encrypted data is the same as the encrypted data in the writing process, and reading the modified encrypted data.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The block chain-based data management method and device provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. A data management method based on a block chain is characterized by comprising the following steps:
receiving encrypted data uploaded by a user, and verifying the encrypted data by using a verification algorithm to generate a verification code;
inserting a check code into the encrypted data, and writing the encrypted data into a node on a block chain;
receiving a data access request input by a user, verifying the check code of the encrypted data in the nodes on the block chain, deleting the check code of the encrypted data if the verification is successful, and reading the encrypted data of which the check code is deleted.
2. The method of claim 1, wherein the check algorithm comprises a hash algorithm or a parity algorithm.
3. The method of claim 1, wherein the verifying the check code of the encrypted data in the node on the blockchain, deleting the check code of the encrypted data if the verification is successful, and reading the encrypted data with the deleted check code comprises:
and verifying the check code of the encrypted data, verifying whether the encrypted data contains the verification code, if so, deleting the check code in the encrypted data, and reading the encrypted data with the deleted check code.
4. The method of claim 1, further comprising:
and if the verification fails, modifying the encrypted data to ensure that the modified encrypted data is the same as the encrypted data in the writing process, and reading out the modified encrypted data.
5. A blockchain-based data management apparatus for implementing the method according to any one of claims 1 to 4, comprising:
the verification module is used for receiving encrypted data uploaded by a user, verifying the encrypted data by using a verification algorithm and generating a verification code;
a write-in module, configured to insert a check code into the encrypted data, and write the encrypted data into a node on a block chain;
and the reading module is used for receiving a data access request input by a user, verifying the check code of the encrypted data in the node on the block chain, deleting the check code of the encrypted data if the verification is successful, and reading the encrypted data of which the check code is deleted.
6. The apparatus of claim 5, wherein the check algorithm comprises a hash algorithm or a parity algorithm.
7. The apparatus according to claim 5, wherein the reading module is specifically configured to receive a data access request input by a user, verify the check code of the encrypted data, verify whether the encrypted data includes the check code, delete the check code of the encrypted data if the encrypted data includes the check code, and read the encrypted data from which the check code is deleted.
8. The apparatus of claim 5, wherein the read module further comprises:
and the modifying unit is used for modifying the encrypted data if the verification fails, so that the modified encrypted data is the same as the encrypted data in the writing process, and reading out the modified encrypted data.
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| CN202010024400.1A CN111259413A (en) | 2020-01-10 | 2020-01-10 | Data management method and device based on block chain |
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Application publication date: 20200609 |