CN106156660A - The data destruction method of a kind of storage device and system - Google Patents
The data destruction method of a kind of storage device and system Download PDFInfo
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- CN106156660A CN106156660A CN201610603090.2A CN201610603090A CN106156660A CN 106156660 A CN106156660 A CN 106156660A CN 201610603090 A CN201610603090 A CN 201610603090A CN 106156660 A CN106156660 A CN 106156660A
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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
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/062—Securing storage systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0646—Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
- G06F3/0652—Erasing, e.g. deleting, data cleaning, moving of data to a wastebasket
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2143—Clearing memory, e.g. to prevent the data from being stolen
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- Software Systems (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Storage Device Security (AREA)
Abstract
This application discloses the data destruction method of a kind of storage device, comprise determining that out the target data needing to carry out destroying in storage device；Identify the data safe class corresponding with target data；Utilize the data erasing mechanism corresponding with data safe class, target data is carried out corresponding data erasing and processes；Wherein, the erasing times of regulation and data safe class correlation in data erasing mechanism.Visible, the application is specifically according to the data safe class of target data, select corresponding data erasing mechanism that target data is destroyed, and the erasing times specified in data erasing mechanism and data safe class correlation, that is, data safe class is the highest, the erasing times corresponding to data erasing mechanism is the most, the most both may insure that data were fully wiped, when can ensure that again and every class data are wiped, be respectively provided with higher efficiency of erasing.It addition, the application further correspondingly discloses a kind of data destroying system.
Description
Technical field
The present invention relates to data destroying technical field, particularly to data destruction method and the system of a kind of storage device.
Background technology
Currently, along with the arrival of data age, people's produced data volume in the Working Life of every day gets more and more,
And among these, have many data to relate to privacy or the trade secret etc. of enterprise of individual.When people are no longer necessary to use
During these private datas, it will usually select these data to be destroyed, to avoid private data to be leaked.
But, the data erasing mechanism being typically with in prior art fixing carries out erasing process to data, that is,
The number of times that all data carry out data erasing is all identical.And owing to the privacy of different pieces of information is the most different,
Use fixing data erasing mechanism to cause some data wipe not thoroughly, it is the most thorough that some data then can be wiped free of
The end, thus the time that waste is the most unnecessary.
In sum it can be seen that the most not only can ensure that data were fully wiped but also can guarantee that higher efficiency of erasing is
There is problem to be solved at present.
Summary of the invention
In view of this, it is an object of the invention to provide data destruction method and the system of a kind of storage device, can be true
Protect data fully to be wiped, can guarantee that again higher efficiency of erasing.Its concrete scheme is as follows:
A kind of data destruction method of storage device, including:
Determine the target data needing to carry out destroying in storage device；
Identify the data safe class corresponding with described target data；
Utilize the data erasing mechanism corresponding with described data safe class, described target data is carried out corresponding data
Erasing processes；
Wherein, the erasing times of regulation and described data safe class correlation in described data erasing mechanism.
Preferably, described in determine the process of target data needing in storage device to carry out to destroy, including:
By the way of user specifies, determine the target data needing to carry out destroying in described storage device.
Preferably, described in determine the process of target data needing in storage device to carry out to destroy, including:
According to the default destruction cycle, periodically it is defined as the data in default memory area in described storage device needing
Carry out the target data destroyed；Wherein, described default memory area is to be specified in described storage device in advance by user
Memory area.
Preferably, the process of the data safe class that described identification is corresponding with described target data, including:
The storage safe class in territory, described target storage is extracted from the property value in territory, target storage；
According to described storage safe class, and combine first and preset mapping library, identify corresponding with described target data
Data safe class；
Wherein, territory, described target storage is the memory block in described storage device stored described target data
Territory；Described first preset mapping library be pre-created for record storage safe class and data safe class between map close
The data base of system.
Preferably, in described data erasing mechanism, the erasing times of regulation more than 2 times and is less than 100 times.
Preferably, if in described data erasing mechanism, the erasing times of regulation is more than or equal to 35 times, then in described data
Front 35 secondary data erasing steps are set to the data erasure step consistent with Gutmann algorithm by erasing mechanism.
Preferably, the data erasing mechanism that described utilization is corresponding with described data safe class, described target data is entered
The process that the corresponding data erasing of row processes, including:
Utilize second to preset mapping library, determine the data erasing machine corresponding with the data safe class of described target data
System；
Utilize described data erasing mechanism, described target data is carried out corresponding data erasing and processes；
Wherein, described second preset mapping library be pre-created for recording data safe class and data erasing mechanism
Between the data base of mapping relations.
The invention also discloses the data destroying system of a kind of storage device, including:
Data determining module, for determining the target data needing to carry out destroying in storage device；
Grade identification module, for identifying the data safe class corresponding with described target data；
Data erasing module, for utilizing the data erasing mechanism corresponding with described data safe class, to described target
Data carry out corresponding data erasing and process；
Wherein, the erasing times of regulation and described data safe class correlation in described data erasing mechanism.
Preferably, described grade identification module includes:
Information extraction unit, for extracting the storage in territory, described target storage from the property value in territory, target storage
Safe class；
Grade recognition unit, for according to described storage safe class, and combines first and presets mapping library, identify and institute
State the data safe class that target data is corresponding；
Wherein, territory, described target storage is the memory block in described storage device stored described target data
Territory；Described first preset mapping library be pre-created for record storage safe class and data safe class between map close
The data base of system.
Preferably, described data erasing module includes:
Erasing mechanism determines unit, is used for utilizing second to preset mapping library, determines the data peace with described target data
The data erasing mechanism that congruence level is corresponding；
Data erasing unit, is used for utilizing described data erasing mechanism, described target data carries out corresponding data wiping
Except processing；
Wherein, described second preset mapping library be pre-created for recording data safe class and data erasing mechanism
Between the data base of mapping relations.
In the present invention, the data destruction method of storage device, comprise determining that out and storage device needs destroy
Target data；Identify the data safe class corresponding with target data；The data corresponding with data safe class are utilized to wipe
Mechanism, carries out corresponding data erasing and processes target data；Wherein, the erasing times specified in data erasing mechanism and data
Safe class correlation.Visible, the present invention, specifically according to the data safe class of target data, selects corresponding
Target data is destroyed by data erasing mechanism, and the erasing times specified in data erasing mechanism and data safe class
Correlation, that is, data safe class is the highest, the erasing times corresponding to data erasing mechanism is the most, the most both
May insure that data are fully wiped, when can ensure that again and every class data are wiped, be respectively provided with higher efficiency of erasing.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
The accompanying drawing provided obtains other accompanying drawing.
Fig. 1 is the data destruction method flow chart of a kind of storage device disclosed in the embodiment of the present invention；
Fig. 2 is the data destroying system structure schematic diagram of a kind of storage device disclosed in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
The embodiment of the invention discloses the data destruction method of a kind of storage device, shown in Figure 1, the method includes:
Step S11: determine the target data needing to carry out destroying in storage device.
It is understood that above-mentioned storage device includes but not limited to USB flash disk, storage card, hard disk, SAN storage area network
Deng.
It addition, above-mentioned target data can be the data in storage device in certain memory area, it is also possible to be whole depositing
Data in storage equipment.
Step S12: identify the data safe class corresponding with target data.
It is understood that different types of data have different data safe classes, the purpose of this step be in order to
Determine the data safe class of target data.
Step S13: utilize the data erasing mechanism corresponding with above-mentioned data safe class, target data is carried out accordingly
Data erasing processes.Wherein, the erasing times of regulation and data safe class correlation in data erasing mechanism.
That is, the data safe class of target data is the highest, regulation in the data erasing mechanism corresponding to target data
Erasing times is the most.It should be noted that current embodiment require that previously according to different data safe classes, determine
Erasing times in corresponding data erasing mechanism.
In the embodiment of the present invention, the data destruction method of storage device, comprise determining that out and storage device needs carry out pin
Ruin the target data of process；Identify the data safe class corresponding with target data；Utilize the number corresponding with data safe class
According to erasing mechanism, target data is carried out corresponding data erasing and processes；Wherein, the erasing times of regulation in data erasing mechanism
With data safe class correlation.Visible, the embodiment of the present invention specifically according to the data safe class of target data,
Select corresponding data erasing mechanism that target data is destroyed, and in data erasing mechanism the erasing times of regulation with
Data safe class correlation, that is, data safe class is the highest, the erasing times corresponding to data erasing mechanism is also
The most, the most both may insure that data were fully wiped, be respectively provided with higher when can ensure that again and every class data are wiped
Efficiency of erasing.
The embodiment of the invention discloses the data destruction method of a kind of concrete storage device, relative to a upper embodiment,
Technical scheme has been made further instruction and optimization by the present embodiment.Concrete:
In upper embodiment step S11, it is thus necessary to determine that go out to need the target data carrying out destroying.The embodiment of the present invention
Various ways can be used to determine above-mentioned target data.
Such as, the embodiment of the present invention can be determined and need in storage device to carry out pin by the way of user specifies
Ruin the target data of process.
Certainly, the embodiment of the present invention can also determine above-mentioned target data in the following way: according to default destruction
In the cycle, periodically the data in default memory area are defined as in storage device the target data needing to carry out destroying；Its
In, default memory area is the memory area specified in storage device in advance by user.The data of storage are needed according to expection
Different types of data, the above-mentioned default destruction cycle can correspondingly be set as the different cycles, such as, can be set to 1 little
Time, one day, one month even 1 year etc..
In upper embodiment step S12, identify the process of the data safe class corresponding with target data, specifically can wrap
Include below step S121 to S122；Wherein,
Step S121: extract the storage safe class in territory, target storage from the property value in territory, target storage.Its
In, territory, target storage is the memory area in storage device stored target data.
It is understood that the embodiment of the present invention needs to arrange one for indicating this storage for territory, target storage in advance
The attribute of the storage safe class in region, such as, arranges one for indicating that this memory area is high safety grade, intermediate security
Grade or the attribute of lower security grade.
Step S122: according to above-mentioned storage safe class, and combine first and preset mapping library, identify and target data pair
The data safe class answered；Wherein, first to preset mapping library be pacifying for recording storage safe class and data of being pre-created
The data base of mapping relations between congruence level.
It is understood that storage safe class is the highest, corresponding data safe class is the highest, otherwise, storage peace
Congruence level is the lowest, and corresponding data safe class is the lowest.
Certainly, except can use aforesaid way in addition to the data safe class identifying target data, the embodiment of the present invention
Corresponding data safe class mark symbol can also be set in advance in target data, then by extracting the number in target data
Accord with according to safe class mark, just can directly identify the data safe class of target data.
Preferably, in the present embodiment, in every kind of data erasing mechanism, the erasing times of regulation is all higher than 2 times and less than 100
Secondary.
Wherein, if the erasing times of regulation is more than or equal to 35 times in data erasing mechanism, then in data erasing mechanism
Middle by front 35 secondary data erasing steps be set to the data erasure step consistent with Gutmann algorithm.On it should be noted that
Stating Gutmann algorithm is a kind of safer data erasing scheme proposed by professor Gu Teman of Oran gram university.
Further, in upper embodiment step S13, utilize the data erasing mechanism corresponding with data safe class, right
Target data carries out the process that corresponding data erasing processes, and specifically includes below step S131 and S132；Wherein,
Step S131: utilize second to preset mapping library, determine the data corresponding with the data safe class of target data
Erasing mechanism.
Step S132: utilize the data erasing mechanism determined in step S132, target data is carried out corresponding data
Erasing processes；
Wherein, second preset mapping library be pre-created for recording between data safe class and data erasing mechanism
The data base of mapping relations.That is, above-mentioned second presets and have recorded different data safe class and corresponding in mapping library
Data erasing mechanism.
Accordingly, the embodiment of the invention also discloses the data destroying system of a kind of storage device, shown in Figure 2, should
System includes:
Data determining module 21, for determining the target data needing to carry out destroying in storage device；
Grade identification module 22, for identifying the data safe class corresponding with target data；
Data erasing module 23, for utilizing the data erasing mechanism corresponding with above-mentioned data safe class, to number of targets
Process according to carrying out corresponding data erasing；
Wherein, the erasing times of regulation and data safe class correlation in data erasing mechanism.
Visible, the embodiment of the present invention, specifically according to the data safe class of target data, selects corresponding data to wipe
Target data is destroyed by the mechanism of removing, and in data erasing mechanism, the erasing times of regulation and data safe class are positive
Pass relation, that is, data safe class is the highest, the erasing times corresponding to data erasing mechanism is the most, the most both can be true
Protect data fully to be wiped, when can ensure that again and every class data are wiped, be respectively provided with higher efficiency of erasing.
Concrete, above-mentioned grade identification module can include information extraction unit and grade recognition unit；Wherein,
Information extraction unit, for extracting the storage safety in territory, target storage from the property value in territory, target storage
Grade；
Grade recognition unit, for according to storage safe class, and combines first and presets mapping library, identify and number of targets
According to corresponding data safe class；
Wherein, the memory area during territory, target storage is storage device, target data stored；First preset reflect
Penetrate storehouse be pre-created for recording the data base of mapping relations between storage safe class and data safe class.
It addition, above-mentioned data erasing module specifically can include that erasing mechanism determines unit and data erasing unit；Wherein,
Erasing mechanism determines unit, is used for utilizing second to preset mapping library, determines that the data with target data are safely etc.
The data erasing mechanism that level is corresponding；
Data erasing unit, is used for utilizing data erasing mechanism, target data carries out corresponding data erasing and processes；
Wherein, second preset mapping library be pre-created for recording between data safe class and data erasing mechanism
The data base of mapping relations.
More specific work process about above-mentioned modules and unit refers to inside the Pass the phase in previous embodiment
Hold, no longer repeat at this.
Finally, in addition it is also necessary to explanation, in this article, the relational terms of such as first and second or the like be used merely to by
One entity or operation separate with another entity or operating space, and not necessarily require or imply these entities or operation
Between exist any this reality relation or order.And, term " includes ", " comprising " or its any other variant meaning
Containing comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that
A little key elements, but also include other key elements being not expressly set out, or also include for this process, method, article or
The key element that equipment is intrinsic.In the case of there is no more restriction, statement " including ... " key element limited, do not arrange
Except there is also other identical element in including the process of described key element, method, article or equipment.
Data destruction method and system to a kind of storage device provided by the present invention are described in detail above, this
Applying specific case in literary composition to be set forth principle and the embodiment of the present invention, the explanation of above example is only intended to
Help to understand method and the core concept thereof of the present invention；Simultaneously for one of ordinary skill in the art, according to the think of of the present invention
Thinking, the most all will change, in sum, it is right that this specification content should not be construed as
The restriction of the present invention.
Claims (10)
1. the data destruction method of a storage device, it is characterised in that including:
Determine the target data needing to carry out destroying in storage device；
Identify the data safe class corresponding with described target data；
Utilize the data erasing mechanism corresponding with described data safe class, described target data is carried out corresponding data erasing
Process；
Wherein, the erasing times of regulation and described data safe class correlation in described data erasing mechanism.
The data destruction method of storage device the most according to claim 1, it is characterised in that described in determine storage device
Middle needs carry out the process of the target data destroyed, including:
By the way of user specifies, determine the target data needing to carry out destroying in described storage device.
The data destruction method of storage device the most according to claim 1, it is characterised in that described in determine storage device
Middle needs carry out the process of the target data destroyed, including:
According to the default destruction cycle, periodically it is defined as the data in default memory area in described storage device needing to carry out
The target data destroyed；Wherein, described default memory area is by depositing that user specifies in advance in described storage device
Storage area territory.
The data destruction method of storage device the most according to claim 1, it is characterised in that described identification and described target
The process of the data safe class that data are corresponding, including:
The storage safe class in territory, described target storage is extracted from the property value in territory, target storage；
According to described storage safe class, and combine first and preset mapping library, identify the data corresponding with described target data
Safe class；
Wherein, territory, described target storage is the memory area in described storage device stored described target data；Institute
State first preset mapping library be pre-created for record storage safe class and data safe class between mapping relations
Data base.
The data destruction method of storage device the most according to claim 1, it is characterised in that in described data erasing mechanism
The erasing times of regulation is more than 2 times and less than 100 times.
The data destruction method of storage device the most according to claim 5, it is characterised in that if described data erasing mechanism
The erasing times of middle regulation is more than or equal to 35 times, then front 35 secondary data erasing steps arranged in described data erasing mechanism
For the data erasure step consistent with Gutmann algorithm.
7. according to the data destruction method of the storage device described in any one of claim 1 to 6, it is characterised in that described utilization
The data erasing mechanism corresponding with described data safe class, carries out the mistake that corresponding data erasing processes to described target data
Journey, including:
Utilize second to preset mapping library, determine the data erasing mechanism corresponding with the data safe class of described target data；
Utilize described data erasing mechanism, described target data is carried out corresponding data erasing and processes；
Wherein, described second preset mapping library be pre-created for recording between data safe class and data erasing mechanism
The data base of mapping relations.
8. the data destroying system of a storage device, it is characterised in that including:
Data determining module, for determining the target data needing to carry out destroying in storage device；
Grade identification module, for identifying the data safe class corresponding with described target data；
Data erasing module, for utilizing the data erasing mechanism corresponding with described data safe class, to described target data
Carry out corresponding data erasing to process；
Wherein, the erasing times of regulation and described data safe class correlation in described data erasing mechanism.
The data destroying system of storage device the most according to claim 8, it is characterised in that described grade identification module bag
Include:
Information extraction unit, for extracting the storage safety in territory, described target storage from the property value in territory, target storage
Grade；
Grade recognition unit, for according to described storage safe class, and combines first and presets mapping library, identify and described mesh
The data safe class that mark data are corresponding；
Wherein, territory, described target storage is the memory area in described storage device stored described target data；Institute
State first preset mapping library be pre-created for record storage safe class and data safe class between mapping relations
Data base.
The data destroying system of storage device the most according to claim 8 or claim 9, it is characterised in that described data erasing mould
Block includes:
Erasing mechanism determines unit, is used for utilizing second to preset mapping library, determines that the data with described target data are safely etc.
The data erasing mechanism that level is corresponding；
Data erasing unit, is used for utilizing described data erasing mechanism, carries out described target data at corresponding data erasing
Reason；
Wherein, described second preset mapping library be pre-created for recording between data safe class and data erasing mechanism
The data base of mapping relations.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610603090.2A CN106156660A (en) | 2016-07-27 | 2016-07-27 | The data destruction method of a kind of storage device and system |
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| CN201610603090.2A CN106156660A (en) | 2016-07-27 | 2016-07-27 | The data destruction method of a kind of storage device and system |
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