CN112286928A - Chain type storage system - Google Patents
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Abstract
The invention relates to a chained storage system. The data element set comprises a storage device, a processing device and a data element set with n data, wherein the data are provided with a pointer field and a data field, the content of the data fields of different data is associated, and the association can be used for consistency comparison; the chain type storage system further comprises a general ledger information unit, wherein the general ledger information unit comprises time points of all data generation and total record number in the chain type storage system, and forms a closed loop. By adopting the chain type storage system, the content association and the address association between the adjacent data improve the association between the data in the chain type storage system, and the consistency comparison between the data can be carried out, thereby preventing a user from unauthorized changing of the data in the chain type 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 method, in which logically connected node data is stored in physically adjacent storage units, so that the node data needs to be moved in the operations of insertion and deletion, and there is only a correlation between data in physical positions. In order to improve the searching speed, index storage is adopted for data, but an index table needs to be added; the more data needs to be stored, the more space is occupied by the index table, and the data in the index table has no relevance to the data in position. These two storage systems are disadvantageous in that the data in the system is difficult to be managed integrally and effectively due to insufficient association between the data and the data, and particularly, are disadvantageous in the case of large storage data amount. The traditional chain storage mode is a simple directional structure, although the front-back relation between data is expressed, and the data have certain correlation, if the content of the data is not modified authorized, the position relation between the modified data and the unmodified data is difficult to accurately position. In the important data needing to be stored, especially in the scene with large data generation amount, it is more difficult to provide effective security for the data in the system, and once the data is modified by unauthorized, the overall data security will be compromised, which occurs and the value of the loss is difficult to measure.
Therefore, it is necessary to find and trace back data changes, which is a problem to be solved for data management.
Disclosure of Invention
The invention aims to provide an improved chain storage system, which enables the data content of the chain storage system to be discovered and traced after being modified by unauthorized.
The purpose of the invention is realized as follows:
a chain storage system comprises a storage device for storing data of the chain storage system and an instruction set of the chain storage system;
a processing device for executing instructions in a chained storage system instruction set;
a data element set having n data elements, each data element 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 a data item for storing the number information and a data item for recording the information, and the second data group at least comprises a data item for storing the summary information of the recording information and a data item for recording the number information. Wherein the 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 the number information of the other data generated prior to the nth data, and the data item of the number information of the second data group includes the number information of the nth data.
The data field of the nth data also comprises a third data group which comprises data items of the integrated summary information, wherein the integrated summary information is generated by the processing device through integrating, packaging and calculating the first data group and the second data group of the nth data,
and in the data element set, the data element set further comprises a general ledger information unit, wherein the general ledger information unit comprises time points of all data generation and a total record number in the chain storage system, and forms a closed loop.
The chain storage system also comprises an instruction set for carrying out consistency comparison on the integrated abstract information, and the processing equipment extracts the information in the integrated abstract information data item of the nth data according to the consistency comparison instruction set and carries out consistency comparison on the integrated abstract information which is generated by calculation by using the processing equipment with any one of other data which is generated before the nth data.
The chain type storage system provided by the invention adopts a mode of integrating the abstract information, so that the verification process of the data is more complete, the whole data stored on the storage equipment is adopted to calculate the characteristic information, and the data in all data items such as the coding information and the like are used as consistency comparison elements, so that the whole integrity of the data during the consistency comparison is ensured, and any data in the data can be reflected in the consistency comparison in time when being changed. Meanwhile, the chain storage system integrates the summary information, so that the consistency comparison process of the data is more complete, the whole data stored on the storage equipment is adopted to calculate the characteristic information, and the data in all data items such as the coding information and the like are used as consistency comparison elements, so that the integral integrity of the data is verified in the consistency comparison step, and any change in the data can be reflected in the consistency comparison. The serial number information and the recorded abstract information included in the data domain of the data supplement each other, one is responsible for searching the data, and the other is responsible for verifying the data, so that the problem that the data is difficult to find when an error occurs in the storage process only by using simple abstract information is avoided.
In the present invention, it is preferable that the data item of the number information of the first data group of the nth data includes the number information generated by the (n-1) th data. The nth data stores the integrated 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, timely finding and improve accuracy, the consistency comparison of the integrated summary information is to compare the integrated summary information of the (n-1) th data stored in the nth data with the integrated summary information of the (n-1) th data generated by the processing equipment in a calculation manner. The chain type storage system provided by the invention realizes the whole traceability through the comparison between adjacent data on the basis of small occupied space.
And the pointer of the pointer field of the general ledger information unit always points to the last data of the chain 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 position relation between the data, and perfectly inherits the advantages of the traditional chain type storage system while realizing the content relevance, and the relevance between the positions is richer and more perfect.
The method for consistency comparison can adopt a conventional MD5 algorithm or/and a hash algorithm or/and a SM3 algorithm. The chain storage system provided by the invention realizes that two groups of different summary information or summary information are used as judgment bases for consistency comparison, if one group of summary information or summary information is lost due to an unexpected condition, another group of summary information or summary information generated by other algorithms can be compensated, and the safety of data is further ensured.
The invention aims to improve the relevance between data in a chain type storage system, realizes the content correlation between adjacent data and the combination with the pointing function of the traditional chain type storage system through the mode, realizes the multi-aspect correlation between the adjacent data, provides a way for checking the data in the whole chain type storage system, and enables an unauthorized user to be easily found after modifying the data through the checking so as to enable the unauthorized modification to lose the practical significance, thereby achieving the effect of preventing the unauthorized user from modifying the data while tracing the chain type storage system after modifying the data.
The invention is explained in detail below with reference to the figures and the detailed description.
Drawings
FIG. 1 is a schematic diagram of consistency of data consistency comparison results in a data domain according to example 1 of the present invention;
FIG. 2 is a schematic diagram of the comparison of consistency ratio to result inconsistency of data in data fields in embodiment 2 of the present invention.
Detailed Description
The objects, technical solutions and advantages of the present invention are further described in detail by the following illustrative embodiments, it being understood that: the following description is only exemplary of the present invention and should not be construed as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Example 1:
a chain storage system comprises a storage device for storing data of the chain storage system and an instruction set of the chain storage system; a processing device for executing instructions in a chained 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 simple and clear explanation of the technology, and it is not that the chain storage system described in the present invention can only store 9 data, and in fact, the data that the chain storage system described in the present invention can store is only related to the total capacity of the storage device, and if the capacity of the storage device is expanded by using array combination or the like, the number of data that can be stored will be necessarily greater.
In this example, the data field of the 5 th data stored in the storage device further includes a first data group and a second data group with data items, wherein the first data group includes a data item holding number information and a data item holding description information, and the second data group includes a data item holding summary information of the description information and a data item holding number information.
The information described in this example is a signature image, and the digest information of the signature image is calculated and generated by the processing device through the MD5 algorithm. Of course, sha algorithm, haval algorithm, ripemd algorithm, etc. may also be used for calculating the summary information, and other algorithms may be considered as an equivalent alternative. The information about the integrated summary may also be calculated using an algorithm as 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.
And the 5 th data field also comprises a third data group, the third data group comprises data items of the integrated summary information, and the integrated summary information is generated by the processing device through integrating, packaging and calculating the first data group and the second data group of the 5 th data.
In the data element set, in addition to the aforementioned 9 data, there is a general ledger information unit, which includes the time points at which all data in the chain storage system are generated and the total number of records, and forms a closed loop. In this embodiment, the total record number of the general ledger information is 9, and includes 9 different generation time points of data, and the pointer of the pointer field points to the last data of the chain storage system to form a closed loop.
The chain storage system further comprises an instruction set for performing consistency comparison on the integrated abstract information, and the processing device extracts information in the integrated abstract information data item of the 5 th data according to the consistency comparison instruction set and performs consistency comparison on the integrated abstract information generated by the 4 th data.
In this embodiment, the hash algorithm is preferably used to compare with the SM3 algorithm, and the processing device outputs two different pieces of integrated summary information, namely, the hash algorithm integrated summary information and the SM3 algorithm integrated summary information.
And when the consistency comparison result shows consistency, namely the comparison result of the hash algorithm integrated abstract information is consistent, and meanwhile, the comparison result of the SM3 algorithm integrated abstract information is also consistent, the data is not changed.
Referring to fig. 1, the first data group of the 4 th data holds the number information of the 3 rd data and the signature image of the description information of the 4 th data. The second data group of the 4 th data includes summary information of 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 summary 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 description information of the 5 th data. The second data group of the 5 th data includes summary information of 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 summary information of the 4 th data.
At this time, the first data group, the second data group and the third data group of the 4 th data are integrated, the integrated abstract information generated by respectively calculating through the processing equipment by adopting a hash algorithm and a secret SM3 algorithm is compared with the integrated abstract information stored in the third data group of the 5 th data, and when the two integrated abstract information comparisons are consistent, the 4 th data is judged to be not changed through the consistency of the integrated abstract information of the 4 th data stored in the 5 th data and the calculated integrated abstract information of the 4 th data.
Example 2:
a chain storage system comprises a storage device for storing data of the chain storage system and an instruction set of the chain storage system; a processing device for executing instructions in a chained storage system instruction set; and a data element set having 19 data, and the 19 data each have a pointer field and a data field. In this embodiment, only 19 data are listed for the purpose of simple description of the present invention, and it is not that the chain storage system of the present invention can only store 19 data, and in fact, the data that the chain storage system of the present invention can store is only related to the total capacity of the storage device, and if the total capacity of the storage device is expanded by using array combination, etc., the number of data that can be stored will be necessarily greater.
In this example, unlike embodiment 1, the description information of the data is face-encoded information, and the digest information of the face-encoded information is preferably generated by the processing device through the cryptographic SM3 algorithm.
In the data element set, besides 19 data, there is a general ledger information unit, which includes the time point of all data generation and the total record number in the chain storage system and forms a closed loop. In this embodiment, the total record number of the general ledger information is 19, and includes 19 different generation time points of data, and the pointer of the pointer field points to the last data of the chain storage system to form a closed loop.
The chain storage system of the embodiment further comprises an instruction set for performing consistency comparison on the integrated abstract information of the integrated information, and the processing device extracts the information in the integrated information data item of the 5 th data according to the consistency comparison instruction set and performs consistency comparison on the information with the integrated abstract information generated by the 4 th data. In this embodiment, the MD5 algorithm is preferably used for comparison, and the output of the processing device is the MD5 algorithm integrated summary information.
When the result of the consistency comparison shows inconsistency, that is, the result of the comparison of the MD5 algorithm integrated summary information is inconsistent, it indicates that the data is 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 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 summary information of the 3 rd data.
In the figure, the first data group of the 5 th data stores the number information of the 4 th data, 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 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 summary information of the 4 th data.
At this time, the first data group and the second data group of the 4 th data are integrated with the third data group, the integration summary information calculated and generated by the processing device through the MD5 algorithm is compared with the integration summary information stored in the third data group of the 5 th data, and if the two integration summary information are inconsistent, that is, if the integration summary information of the 4 th data stored in the 5 th data is inconsistent with the calculated integration summary information of the 4 th data, it indicates that the 4 th data has been modified.
By analogy, neighboring data are verified against each other.
After the 19 th data is verified to be changed by the general ledger information unit, carrying out consistency comparison on the 18 th data through the 19 th data, wherein the comparison result is consistent; comparing the 17 th data with the 18 th data, wherein the comparison results are consistent; and continuously comparing the 16 th data with the 17 th data, wherein the comparison result is consistent, and so on. And when the 4 th data is subjected to consistency comparison through the 5 th data and the comparison result is inconsistent, the 4 th data is changed. And whether the 3 rd data is changed or not is judged by combining the integrated summary information in the 4 th data and the third data group with the information in the general ledger information unit, so that the data in the chain type storage system is integrally and traceably managed.
Claims (7)
1. A chain storage system comprises a storage device for storing data of the chain storage system and an instruction set of the chain storage system;
a processing device for executing instructions in a chained storage system instruction set;
a data element set having n data elements, each data element 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 a data item for storing the numbering information and a data item for recording the information, and the second data group at least comprises a data item for storing the summary information of the recording information and a data item for recording the numbering information;
wherein summary information of the described information is computationally generated by the processing device; the data item of the number information of the first data group of the nth data comprises the number information of other data generated before the nth data, and the data item of the number information of the second data group comprises the number information of the nth data;
the data field of the nth data further comprises a third data group, and the third data group comprises data items of the integrated summary information, wherein the integrated summary information is generated by integrating, packaging and calculating the first data group and the second data group of the nth data by the processing device;
in the data element set, the data element set further comprises a general ledger information unit, wherein the general ledger information unit comprises time points and total record numbers generated by all data in the chain type storage system, and forms a closed loop;
the chain storage system also comprises an instruction set for carrying out consistency comparison on the integrated abstract information, and the processing equipment extracts the information in the integrated abstract information data item of the nth data according to the consistency comparison instruction set and carries out consistency comparison on the integrated abstract information which is generated by calculation by using the processing equipment with any one of other data which is generated before the nth data.
2. The chained memory 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. Chain storage system according to claim 1 or 2, characterized in that: the third data group of the nth data stores the integrated summary information of the (n-1) th data.
4. Chain storage system according to claim 1 or 2, characterized in that: the consistency comparison of the integrated abstract information is that the integrated abstract information of the (n-1) th data stored in the nth data is compared with the integrated abstract information of the (n-1) th data generated by the processing equipment in a calculation mode.
5. The chained storage system of claim 3, wherein: the consistency comparison of the integrated abstract information is that the integrated abstract information of the (n-1) th data stored in the nth data is compared with the integrated abstract information of the (n-1) th data generated by the processing equipment through calculation.
6. Chain storage system according to any of claims 1-5, characterized in that: and the pointer of the pointer field of the general ledger information unit always points to the last data of the chain storage system to form a closed loop.
7. Chain storage system according to any of claims 1-6, characterized in that: the consistency comparison method comprises an MD5 algorithm or/and a hash algorithm or/and a SM3 cryptographic algorithm.
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Address after: 401121 no.17-1, building 13, No.106, west section of Jinkai Avenue, Yubei District, Chongqing Patentee after: Chongqing Sign Digital Technology Co.,Ltd. Country or region after: China Address before: 401121 no.17-1, building 13, No.106, west section of Jinkai Avenue, Yubei District, Chongqing Patentee before: CHONGQING AOS ONLINE INFORMATION TECHNOLOGY CO.,LTD. Country or region before: China |
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