CN112286928B - Chain type storage system - Google Patents
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- CN112286928B CN112286928B CN201910870008.6A CN201910870008A CN112286928B CN 112286928 B CN112286928 B CN 112286928B CN 201910870008 A CN201910870008 A CN 201910870008A CN 112286928 B CN112286928 B CN 112286928B
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- 238000012545 processing Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims description 8
- 239000000284 extract Substances 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 abstract description 4
- 238000004364 calculation method Methods 0.000 description 3
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- 238000013475 authorization Methods 0.000 description 1
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- 238000013523 data management Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000013524 data verification Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
Abstract
The present invention relates to a chain type storage system. The data element set comprises a storage device, a processing device and a data element set with n data, wherein the data has pointer fields and data fields, the contents of the data fields of different data have relevance, and the relevance can be subjected to consistency comparison; the system also comprises a general ledger information unit, wherein the general ledger information unit comprises time points and total record numbers of all data generation in the chain type storage system, and forms a closed loop. By adopting the chained storage system, the content association and the address association between adjacent data improve the association between the data in the chained storage system, and the consistency comparison between the data can be carried out, thereby preventing users from unauthorized modification of the data in the chained storage system.
Description
Technical Field
The invention relates to the field of storage of information technology, in particular to a chain type storage system.
Background
At present, common data storage modes include sequential storage, index storage, chain storage and the like.
Sequential storage is a basic storage mode in which logically connected node data is stored in physically adjacent storage units, resulting in the need for movement of the node data during insertion and deletion operations, and the data is only physically related to each other. In order to increase the searching speed, the data is stored by indexes, but an index table is required to be added; the more the data quantity to be stored is, the larger the occupied space of the index table is, and the data in the index table has no relevance in position. These two storage systems are disadvantageous in that it is difficult to effectively manage the data in the system integrally due to insufficient correlation between data, and are particularly disadvantageous in the case of large storage data. The conventional chained storage method is a simple directional structure, and although the front-back relation between data is expressed, the data has a certain correlation, if the content of the data is not authorized to be modified, the position relation between the modified data and the unmodified data is difficult to accurately position. This makes it more difficult to provide effective security for data in a system in a scenario where important data needs to be stored, particularly in a scenario where the data generation amount is large, and once the data is altered without authorization, the overall data security will be compromised, and this phenomenon occurs, and the lost value is difficult to measure.
Therefore, it is a problem to be solved in the data management that can find and trace back the data change.
Disclosure of Invention
The invention aims to provide an improved chained memory system, so that the data content of the chained memory system can be found and traced after unauthorized modification.
The purpose of the invention is realized in the following way:
a chain storage system comprising a storage device for storing data of the chain storage system and an instruction set of the chain storage system;
processing means for executing instructions in the chain storage system instruction set;
a set of data elements having n data, each data having a pointer field and a data field, characterized by:
the data field of the nth data stored in the storage device further comprises a first data set and a second data set, wherein the first data set at least comprises data items for storing number information and data items for storing record information, and the second data set at least comprises data items for storing abstract information and data items for storing number information of the record information. Wherein summary information of the recorded information is computationally generated by the processing device.
The data item of the number information of the first data group of the nth data includes number information of other data generated prior to the nth data, and the data item of the number information of the second data group includes number information of the nth data.
The data field of the nth data further comprises a third data group, the third data group comprises data items of integrated summary information, wherein the integrated summary information is generated by integrating and packaging the first data group and the second data group of the nth data by the processing equipment and calculating,
and the data element set further comprises a general ledger information unit, wherein the general ledger information unit comprises time points and total record numbers of all data generation in the chain storage system, and forms a closed loop.
The chain type storage system further comprises an instruction set for consistency comparison of the integrated summary information, the processing equipment extracts information in the integrated summary information data item of the nth data according to the consistency comparison instruction set, and the processing equipment calculates the generated integrated summary information to carry out consistency comparison with any one of other data generated before the nth data.
The chain type storage system provided by the invention adopts a mode of integrating abstract information, so that the data verification process is more complete, and adopts the whole data stored on the storage device to perform characteristic information calculation so that the data in all data items such as code information and the like are used as elements for consistency comparison, thereby ensuring that the integrity of the consistency comparison is verified, and ensuring that any data in the data can be timely represented in the consistency comparison after being changed. Meanwhile, the chain type storage system adopts a mode of integrating abstract information, so that the consistency comparison process of data is more complete, and adopts the whole of the data stored on storage equipment to perform characteristic information calculation so that the data in all data items such as coding information and the like are used as elements of consistency comparison, thereby ensuring that the whole integrity of the data is verified in the step of consistency comparison, and ensuring that any change in the data can be represented in the consistency comparison. The invention can mutually verify through the two kinds of information, and can ensure that the whole chain type storage system can avoid single-point errors.
Preferably, the data item of the number information of the first data group of the nth data includes number information generated by the (n-1) th data. The nth data stores the integration summary information of the (n-1) th data. The chain type storage system provided by the invention adopts a mode of carrying out relevance on adjacent data, only stores the previous piece of information, and can obviously reduce the occupied storage space.
In order to facilitate searching and timely finding, accuracy is improved, and the consistency comparison of the integrated summary information is that the integrated summary information of the n-1 data stored in the n-th data is compared with the integrated summary information of the n-1 data calculated and generated by the processing equipment. The chain type storage system provided by the invention realizes the integral traceability by comparing adjacent data on the basis of small space occupation.
The pointing needle of the pointer field of the general ledger information unit always points to the last data of the chained storage system to form a closed loop.
The chain type storage system provided by the invention forms a complete closed loop chain type storage system through the closed loop of the content between the data and the closed loop of the inter-data relationship, realizes the content relevance, and simultaneously perfectly inherits the advantages of the traditional chain type storage system, and has the relevance between the positions, so that the relevance between the data is richer and more perfect.
The consistency comparison method can adopt a conventional MD5 algorithm or/and a hash algorithm or/and a national cipher SM3 algorithm. The chain type storage system provided by the invention realizes that two groups of different integrated abstract information or abstract information are used as the judgment basis for consistency comparison, and if one group of abstract information or integrated abstract information is lost due to unexpected situations, the abstract information or integrated abstract information generated by another group of other algorithms can be compensated, so that the safety of data is further ensured.
The invention aims to improve the relativity between data in a chain type storage system, realizes the content relativity between adjacent data by the mode and combines with the pointing function of the traditional chain type storage system, realizes the multi-aspect relativity between the adjacent data, provides a way for checking the data in the whole chain type storage system, and can easily find out the data after the unauthorized user modifies the data by the checking so as to lead the unauthorized modification to lose the practical significance, thereby achieving the effect of preventing the unauthorized user from modifying the data after the data is modified.
The invention is explained in detail below with reference to the drawings and the specific embodiments.
Drawings
FIG. 1 is a diagram showing the consistency of data in the data domain according to embodiment 1 of the present invention;
fig. 2 is a diagram illustrating inconsistency of the consistency comparison result of data in the data domain according to embodiment 2 of the present invention.
Detailed Description
The objects, technical solutions and advantageous effects of the present invention will be described in further detail with reference to the specific embodiments set forth below, and it should be understood that: the following description is merely illustrative of the invention and is not intended to limit the scope of the invention, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Example 1:
a chain storage system comprising a storage device for storing data of the chain storage system and an instruction set of the chain storage system; processing means for executing instructions in the chain storage system instruction set; and a data element set having 9 data, each data having a pointer field and a data field.
In this embodiment, only 9 data are listed for the sake of simple and clear description of the technology, but the chained memory system of the present invention can only store 9 data, in fact, the chained memory system of the present invention can store data only related to the total capacity of the memory device, and if the capacity of the memory device is extended by using array combination, the number of data that can be stored will necessarily be larger.
In this example, the data field of the 5 th data stored in the storage device further includes a first data set and a second data set, where the first data set includes a data item storing number information and a data item storing description information, and the second data set includes a data item storing summary information and a data item storing number information of the description information.
The recorded information in this example is a signature image, and the digest information of the signature image is calculated and generated by the processing device by the MD5 algorithm. Of course, sha algorithm, haval algorithm, rivemd algorithm, etc. may be used for calculating summary information, and other algorithms may be used as an equivalent replacement. The summary information may also be calculated using the algorithm described above.
In this example, the data item of the number information of the first data group of the 5 th data includes the number information of the 4 th data, and the data item of the number information of the second data group includes the number information of the 5 th data.
The data domain of the 5 th data further comprises a third data set, wherein the third data set comprises data items of integrated summary information, and the integrated summary information is generated by integrating and packaging the first data set and the second data set of the 5 th data through calculation by the processing equipment.
In the data element set, in addition to the aforementioned 9 data, there is a general ledger information unit, which includes the time points and the total record number of all data generation in the chain storage system, and forms a closed loop. In this embodiment, the total record number of the general ledger information is 9, which includes 9 different generation time points of data, and the pointing needle of the pointer field points to the last data of the chained storage system to form a closed loop.
The chain type storage system further comprises an instruction set for consistency comparison of the integrated abstract information, and the processing equipment extracts information in the integrated abstract information data item of the 5 th data according to the consistency comparison instruction set and generates the integrated abstract information with the 4 th data to carry out consistency comparison.
In this embodiment, the hash algorithm is preferably used to combine with the national cipher SM3 algorithm to perform comparison, and the processing device outputs two different integrated summary information, which are the hash algorithm integrated summary information and the national cipher SM3 algorithm integrated summary information respectively.
When the consistency comparison results show consistency, namely the comparison results of the hash algorithm integrated summary information are consistent, and meanwhile, the comparison results of the SM3 cryptographic algorithm integrated summary information are also consistent, the data are not changed.
Referring to fig. 1, the first data group of the 4 th data stores a signature image of the number information of the 3 rd data and the record information of the 4 th data. The second data group of the 4 th data includes summary information of the description information of the 4 th data and number information of the 4 th data. The third data set of the 4 th data includes the integrated digest information of the 3 rd data.
The first data group of the 5 th data stores the number information of the 4 th data and the signature image of the record information of the 5 th data. The second data group of the 5 th data includes summary information of the description information of the 5 th data and number information of the 5 th data. The third data set of the 5 th data includes the integrated digest information of the 4 th data.
At this time, the first data set, the second data set and the third data set of the 4 th data are integrated, the processing equipment adopts a hash algorithm and a state secret SM3 algorithm to calculate and compare the generated integrated abstract information with the integrated abstract information stored in the third data set in the 5 th data, and when the comparison of the two integrated abstract information is uniform, the 4 th data is judged to be not changed by the fact that the integrated abstract information of the 4 th data stored in the 5 th data is consistent with the calculated integrated abstract information of the 4 th data.
Example 2:
a chain storage system comprising a storage device for storing data of the chain storage system and an instruction set of the chain storage system; processing means for executing instructions in the chain storage system instruction set; and a data element set having 19 data, and each of the 19 data has a pointer field and a data field. In this embodiment, only 19 data are listed for the sake of simple explanation of the present invention, but the chained memory system according to the present invention can only store 19 data, in fact, the chained memory system according to the present invention can store data only related to the total capacity of the memory device, and if the total capacity of the memory device is extended by using array combination, the number of data that can be stored will be necessarily larger.
In this example, unlike embodiment 1, the recorded information of the data is face-coded information, and the digest information of the face coding is preferably calculated by the processing device by the cryptographic SM3 algorithm.
In the data element set, there is a general ledger information unit including the time points and the total record number of all data generation in the chain storage system, in addition to 19 data, and a closed loop is formed. In this embodiment, the total record number of the general ledger information is 19, including 19 different generation time points of data, and the pointing needle of the pointer field points to the last data of the chained storage system to form a closed loop.
The chain type storage system of the embodiment further comprises an instruction set for consistency comparison of the integrated summary information of the integrated information, and the processing equipment extracts information in the integrated information data item of the 5 th data according to the consistency comparison instruction set and generates the integrated summary information with the 4 th data for consistency comparison. In this embodiment, the MD5 algorithm is preferably used for comparison, and the processing device outputs the integrated summary information for the MD5 algorithm.
When the consistency comparison results are inconsistent, namely the comparison results of the MD5 algorithm integrated summary information are inconsistent, the data are changed.
Referring to fig. 2, the first data group of the 4 th data in the figure stores the number information of the 3 rd data, and the description information of the 4 th data is face coding information. The second data group of the 4 th data includes summary information of the description information of the 4 th data and number information of the 4 th data. The third data set of the 4 th data includes the integrated digest information of the 3 rd data.
In the first data group of the 5 th data in the figure, the number information of the 4 th data is stored, and the description information of the 5 th data is face coding information. The second data group of the 5 th data includes summary information of the description information of the 5 th data and number information of the 5 th data. The third data set of the 5 th data includes the integrated digest information of the 4 th data.
At this time, the first data set and the second data set of the 4 th data are integrated with the third data set, and the processing device compares the integrated summary information calculated and generated by adopting the MD5 algorithm with the integrated summary information stored in the third data set of the 5 th data, and when the two integrated summary information are inconsistent, that is, the integrated summary information of the 4 th data stored in the 5 th data is inconsistent with the calculated integrated summary information of the 4 th data, the 4 th data is indicated to be changed.
And so on, adjacent data are verified against each other.
After verifying whether 19 th data is changed or not through the general ledger information unit, carrying out consistency comparison on 18 th data through 19 th data, wherein the comparison result is consistent; comparing the 17 th data by the 18 th data, wherein the comparison result is consistent; and continuing to compare the 16 th data through the 17 th data, wherein the comparison results are consistent, and so on. When the comparison result is inconsistent through the comparison of the data 5 and the data 4, the data 4 is changed. And by combining the integrated summary information in the third data group of the 4 th data with the information in the general ledger information unit, judging whether the 3 rd data is changed or not, thereby realizing the integrated and traceable management of the data in the chained memory system.
Claims (13)
1. A chain storage system comprising a storage device for storing data of the chain storage system and an instruction set of the chain storage system;
processing means for executing instructions in the chain storage system instruction set;
a set of data elements having n data, each data having a pointer field and a data field, characterized by:
the data field of the nth data stored in the storage device further comprises a first data group and a second data group, wherein the first data group at least comprises data items for storing number information and data items for recording information, and the second data group at least comprises data items for storing abstract information and data items for recording information;
wherein summary information of the recorded information is computationally generated by the processing device; the data items of the numbering information of the first data group of the nth data comprise the numbering information of other data generated prior to the nth data, and the data items of the numbering information of the second data group comprise the numbering information of the nth data;
the data field of the nth data further comprises a third data group, wherein the third data group comprises data items of integrated summary information, and the integrated summary information is generated by integrating and packaging the first data group and the second data group of the nth data by the processing equipment and calculating;
the system comprises a chain storage system, a data element set, a general ledger information unit, a data element set and a data element set, wherein the general ledger information unit comprises time points and total record numbers of all data generation in the chain storage system and forms a closed loop;
the chain type storage system further comprises an instruction set for consistency comparison of the integrated abstract information, the processing equipment extracts information in an integrated abstract information data item of nth data according to the consistency comparison instruction set, and the information is subjected to consistency comparison with any one of other data generated prior to the nth data, and the processing equipment is used for calculating the generated integrated abstract information.
2. The chain storage system of claim 1, wherein: the data item of the number information of the first data group of the nth data stores the number information generated by the (n-1) th data.
3. The chain type storage system according to claim 1 or 2, characterized in that: and the third data group of the nth data stores the integration summary information of the (n-1) th data.
4. The chain type storage system according to claim 1 or 2, characterized in that: and the consistency comparison of the integrated abstract information is that the integrated abstract information of the n-1 data stored in the nth data is compared with the integrated abstract information of the n-1 data calculated and generated by the processing equipment.
5. A chain storage system as claimed in claim 3, wherein: and the consistency comparison of the integrated abstract information is that the integrated abstract information of the n-1 data stored in the nth data is compared with the integrated abstract information of the n-1 data calculated and generated by the processing equipment.
6. The chain storage system of any of claims 1-2, wherein: the pointing needle of the pointer field of the ledger information unit always points to the last data of the chained memory system to form a closed loop.
7. A chain storage system as claimed in claim 3, wherein: the pointing needle of the pointer field of the ledger information unit always points to the last data of the chained memory system to form a closed loop.
8. The chain type storage system of claim 4, wherein: the pointing needle of the pointer field of the ledger information unit always points to the last data of the chained memory system to form a closed loop.
9. The chain type storage system of claim 5, wherein: the pointing needle of the pointer field of the ledger information unit always points to the last data of the chained memory system to form a closed loop.
10. The chain storage system of any of claims 1-2, wherein: the consistency comparison method comprises an MD5 algorithm or/and a hash algorithm or/and a national cipher SM3 algorithm.
11. A chain storage system as claimed in claim 3, wherein: the consistency comparison method comprises an MD5 algorithm or/and a hash algorithm or/and a national cipher SM3 algorithm.
12. The chain type storage system of claim 4, wherein: the consistency comparison method comprises an MD5 algorithm or/and a hash algorithm or/and a national cipher SM3 algorithm.
13. The chain type storage system of claim 5, wherein: the consistency comparison method comprises an MD5 algorithm or/and a hash algorithm or/and a national cipher SM3 algorithm.
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