CN105843807B - A kind of data-erasure method, equipment and platform - Google Patents
A kind of data-erasure method, equipment and platform Download PDFInfo
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- CN105843807B CN105843807B CN201510015245.6A CN201510015245A CN105843807B CN 105843807 B CN105843807 B CN 105843807B CN 201510015245 A CN201510015245 A CN 201510015245A CN 105843807 B CN105843807 B CN 105843807B
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Abstract
The embodiment of the invention provides a kind of data-erasure method, equipment and platforms, including: the last item binary recording stored since binary file, it is successively deleted from back to front by a binary recording, until deleting the binary recording to be deleted stored in binary file；It is obtained by predetermined manner before deleting the last item binary recording, the storage content and storage order of all binary recordings of the storage location after binary recording to be deleted；Storage location before being deleted with record to be deleted in binary file is starting writing position, by all binary recordings of the storage location after binary recording to be deleted, according to the storage order before being deleted in binary file from front to back, it is sequentially written in binary file.It ensure that binary file can parse.The present invention relates to field of computer technology.
Description
Technical field
The present invention relates to field of computer technology more particularly to a kind of data-erasure methods, equipment and platform.
Background technique
In computer technology, many applications will use binary file, which is stored with a plurality of binary system note
Record, by taking SIM card is applied as an example: store multiple binary files in SIM card, a plurality of characterization is store in the binary file and is visited
Ask that the binary recording of rule can pass through pair in the binary file when the application program of terminal needs to access SIM card
Determining access rule should be recorded, determines whether that application program is allowed to access SIM card.
It usually requires to operate binary recording using a plurality of read write command when binary recording is managed, lead to
It often may include: to increase binary recording, deletion binary recording, modification binary system to the operation that binary recording is managed
Record etc., wherein new binary recording can be usually written at binary file end by increasing binary recording operation, be modified
Binary recording operation usually new binary recording can be written by the position of modification binary recording, and delete binary system
Record operation, which is then compared, to be difficult to realize, generallys use following method in the prior art:
Method one deletes binary recording operation and usually fills character covering in the position use of binary recording to be deleted
The binary recording to be deleted.
In method one, if the position of binary recording to be deleted at the end of binary file, that is, this two into
Make the last item binary recording for being recorded as in binary file, then it is this be directly with the mode for covering of filling character can
Delete binary recording to realize, if the position of binary recording to be deleted not at the end of binary file, by
Be not in the length of each binary recording it is fixed, just appear in binary recording to be deleted be filled character covering after,
Firstly, the corresponding limited length of filling character of the binary recording to be deleted, possibly can not be fully utilized, it can only be for being waited for this
It deletes binary recording to use with the shorter binary recording of length or length, secondly, the binary recording to be deleted is corresponding
The front and back filled character there is effective binary recording, when parsing the binary file, analysis program can not
The length filled character is determined, therefore, it is impossible to accurately determine after filling character close to effectively recording of filling character
Starting position leads to binary file parsing failure；
Further, Fig. 1 a~Fig. 1 b is to directly adopt to fill character that binary recording to be deleted is deleted schematic diagram, figure
In identical filling pattern characterizing part same binary recording, Fig. 1 a characterization deletes before binary recording 101 to be deleted
Two-stage system file, Fig. 1 b characterization directlys adopt and fills character the filled binary file of binary recording 101 to be deleted,
As it can be seen that the analysis program that the initial position of binary recording 101 is difficult resolved binary file accurately determines, lead to binary system
Document analysis failure.
Further, in order to guarantee binary file after deleting binary recording can successfully resolved, the prior art
In also proposed method two: the subsequent binary recording of binary recording to be deleted is totally moved forward, by record to be deleted
Position covering.
In method two, during totally moving forward to binary recording, need a plurality of instruction that could complete, often
Item instruction can complete the movement of partial binary record, if in the binary file later for performing partial binary record
Place equipment is abnormal situation and the movement of binary recording is not fully completed, then may also lead to binary file solution
Analysis failure.
Further, Fig. 2 a~Fig. 2 b is to be shown binary recording to be deleted deletion by the way of mobile binary recording
It is intended to, Fig. 2 a characterization deletes the binary file before binary recording 201 to be deleted, and Fig. 2 b characterization is using mobile binary system note
Binary file of the mode of record by partial binary record after mobile.As shown in Figure 2 a, binary recording 201 to be deleted it
Binary recording afterwards is followed successively by binary recording 202 and binary recording 203, as shown in Figure 2 b, it is assumed that when move two into
It is abnormal after system record 202, then binary file has reformed into the binary file as shown in 2b, that is to say, that two
The positions that system record 202 is moved to binary recording 201 to be deleted, and binary recording 202 after movement and do not move
The ending of binary recording 202 before producing movement between dynamic binary recording 203, becomes redundant data 204,
After abnormal processed, analysis program can not parse redundant data 204, and binary recording 203 is caused not read normally
It takes, that is, binary file parsing failure.
Summary of the invention
The embodiment of the invention provides a kind of data-erasure method and equipment, to solve the binary recording of the prior art
Delet method deletes the problem of binary recording causes binary file that can not parse later.
Based on the above issues, the embodiment of the invention provides a kind of one of data-erasure methods, comprising:
The last item binary recording stored since binary file, successively remember from back to front by binary system
Record is deleted, until the binary recording to be deleted that will be stored in the binary file is deleted；
It is obtained by predetermined manner before deleting the last item binary recording, storage location is described to be deleted
The storage content and storage order of all binary recordings after binary recording；
Storage location before being deleted with the record to be deleted in the binary file is starting writing position,
By all binary recordings of the storage location after the binary recording to be deleted, according to before being deleted described two into
Storage order in file processed from front to back is sequentially written in the binary file.
The two of a kind of data-erasure method provided in an embodiment of the present invention, comprising:
It is sent to SIM card and deletes instruction,
Wherein, the deletion instruction is used to indicate the last item binary system that the SIM card is stored from binary file
Record starts, successively delete from back to front every binary recording, until will be stored in the binary file to
Until deleting binary recording deletion；
It is sent in the binary file before the deletion of the last item binary recording to the SIM card, storage location exists
The storage content and storage order of all binary recordings after the binary recording to be deleted；
Write instructions are sent to the SIM card,
Wherein, said write instruction is used to indicate before the SIM card is deleted with the record to be deleted described two
Storage location in binary file is starting writing position, and storage location is all after the binary recording to be deleted
Binary recording is sequentially written in described two according to the storage order before being deleted in the binary file from front to back
Binary file.
The three of a kind of data-erasure method provided in an embodiment of the present invention, comprising:
It determines in the binary file stored in SIM card from the last item binary recording to binary recording institute to be deleted
The binary recording item number for including；
It sends to the SIM card and is indicated with the deletion of the binary recording item number same number determined,
Wherein, each deletion instruction is used to indicate the current the last item of the SIM card by the binary file
Binary recording is deleted；
For in the binary file by the last item binary recording delete before, storage location to be deleted two into
All binary recordings after system record one by one will be in the storage of the binary recording according to storage order from front to back
Hold and is sent to SIM card for the write instructions of the binary recording.
A kind of data-removal apparatus provided in an embodiment of the present invention, comprising:
Removing module, the last item binary recording for being stored since binary file, from back to front successively
It is deleted by a binary recording, until being by the binary recording to be deleted stored in the binary file deletion
Only；
Writing module stores position for obtaining by predetermined manner by before the last item binary recording deletion
Set the storage content and storage order of all binary recordings after the binary recording to be deleted；And with it is described to
Storage location before deletion record is deleted in the binary file is starting writing position, by storage location described
All binary recordings after binary recording to be deleted, according to be deleted before in the binary file from front to back
Storage order, be sequentially written in the binary file.
A kind of one of SIM card management platform provided in an embodiment of the present invention, comprising:
Indicating module is deleted, deletes instruction for sending to SIM card, wherein the deletion instruction is used to indicate the SIM
Blocking the last item binary recording stored since binary file, successively every binary recording is carried out from back to front
It deletes, until the binary recording to be deleted that will be stored in the binary file is deleted；
Content sending module is written, for sending the last item binary system note in the binary file to the SIM card
Before record is deleted, the storage content and storage of all binary recordings of the storage location after the binary recording to be deleted
Sequentially；
Write instructions module, for sending write instructions to the SIM card, wherein said write instruction is used to indicate institute
Stating the storage location before SIM card is deleted with the record to be deleted in the binary file is starting writing position,
By all binary recordings of the storage location after the binary recording to be deleted, according to before being deleted described two into
Storage order in file processed from front to back is sequentially written in the binary file.
The two of a kind of SIM card management platform provided in an embodiment of the present invention, comprising:
Determining module, for determining in the binary file stored in SIM card from the last item binary recording to wait delete
The binary recording item number for being included except binary recording；
Indicating module is deleted, for sending the deletion with the binary recording item number same number determined to the SIM card
Instruction, wherein each deletions indicate to be used to indicate the SIM card by current the last item two of the binary file into
System record is deleted；
Write instructions module, for depositing for before deleting the last item binary recording in the binary file
Storage space sets all binary recordings after binary recording to be deleted and one by one should according to storage order from front to back
The storage content of binary recording and SIM card is sent to for the write instructions of the binary recording.
The beneficial effect of the embodiment of the present invention includes:
A kind of data-erasure method, equipment and platform provided in an embodiment of the present invention, comprising: stored from binary file
The last item binary recording start, successively deleted from back to front by a binary recording, until by binary system text
Until the binary recording to be deleted stored in part is deleted；It is obtained by predetermined manner and the last item binary recording is deleted it
Before, the storage content and storage order of all binary recordings of the storage location after binary recording to be deleted；Wait delete
Storage location in binary file is starting writing position before being deleted except record, by storage location to be deleted two into
All binary recordings after system record, according to storage order in binary file from front to back before being deleted, according to
Secondary write-in binary file.Data-erasure method provided in an embodiment of the present invention, the last item stored from binary file
Binary recording starts, successively delete from back to front every binary recording, until will store in binary file
Until binary recording to be deleted is deleted, compared with the data-erasure method that the prior art provides, even if deleting binary system note
It is abnormal during record, due to being deleted forward since the last item binary recording, present in binary file
Binary recording still can compact arrangement, do not appear between two effective binary recordings that there are the feelings of redundant data
Condition ensure that binary file can parse.
Detailed description of the invention
Fig. 1 a~Fig. 1 b be background of invention provide directly adopt to fill character and delete binary recording to be deleted
Except schematic diagram；
Fig. 2 a~Fig. 2 b be background of invention provide using move binary recording by the way of by be deleted two into
Record deletion schematic diagram processed；
Fig. 3 is a kind of flow chart of data-erasure method provided in an embodiment of the present invention；
Fig. 4 is a kind of flow chart for data-erasure method that the embodiment of the present invention 1 provides；
Fig. 5 a~Fig. 5 h is that the data-erasure method provided using the embodiment of the present invention 1 is deleted binary recording to be deleted
Process schematic；
Fig. 6 is a kind of flow chart for data-erasure method that the embodiment of the present invention 2 provides；
Fig. 7 is that the SIM card that is applied to corresponding with a kind of data-erasure method that the embodiment of the present invention 2 provides manages platform side
Flow chart；
Fig. 8 is a kind of flow chart for data-erasure method that the embodiment of the present invention 3 provides；
Fig. 9 is that the SIM card that is applied to corresponding with a kind of data-erasure method that the embodiment of the present invention 3 provides manages platform side
Flow chart；
Figure 10 is a kind of structural schematic diagram of data-removal apparatus provided in an embodiment of the present invention；
Figure 11 is the structural schematic diagram that a kind of SIM card provided in an embodiment of the present invention manages one of platform；
Figure 12 is two structural schematic diagram that a kind of SIM card provided in an embodiment of the present invention manages platform.
Specific embodiment
The embodiment of the invention provides a kind of data-erasure method and equipment, below in conjunction with Figure of description to of the invention
Preferred embodiment is illustrated, it should be understood that preferred embodiments described herein are only used to illustrate and explain the present invention, not
For limiting the present invention.And in the absence of conflict, the features in the embodiments and the embodiments of the present application can be mutual
Combination.
The embodiment of the present invention provides a kind of data-erasure method, as shown in Figure 3, comprising:
S301, the last item binary recording stored since binary file, from back to front successively one by one to two
System record is deleted, until deleting the binary recording to be deleted stored in binary file.
S302, it is obtained by predetermined manner by before the deletion of the last item binary recording, storage location is to be deleted two
The storage content and storage order of all binary recordings after system record.
S303, be deleted with record to be deleted before storage location in binary file be starting writing position, will
All binary recordings being stored in after binary recording to be deleted, according to be deleted before in binary file in the past extremely
Storage order afterwards, is sequentially written in binary file.
Further, data-erasure method provided in an embodiment of the present invention is by the way of first deleting and moving afterwards, first will be to
Binary recording and its subsequent binary recording is deleted to delete one by one according to sequence from back to front, then by storage location to
All binary recordings after deletion binary recording are written one by one, even if occurring during deleting binary recording different
Often, due to being deleted forward since the last item binary recording, binary recording present in binary file still can
Enough compact arrangements, do not appear in the case where there are redundant datas between two effective binary recordings, ensure that binary system text
Part can parse.
With reference to the accompanying drawing, method provided by the invention and relevant device are described in detail with specific embodiment.
Embodiment 1:
In the embodiment of the present invention 1, a kind of data-erasure method is provided, as shown in figure 4, specifically comprising the following steps:
S401, all binary recordings by storage location in binary file after binary recording to be deleted are deposited
Storage content and the storage order of all binary recordings in binary file are backed up.
Fig. 5 a~Fig. 5 h is that the data-erasure method provided using the embodiment of the present invention 1 is deleted binary recording to be deleted
Process schematic, Fig. 5 a characterization delete the binary file before binary recording 501 to be deleted, and the portion of identical filling pattern
Divide characterization same binary recording.
As shown in Figure 5 a, in binary file from binary recording 501 to be deleted to the last item binary recording
504, storage order in binary file from front to back be binary recording 501 to be deleted, binary recording 502, two into
System record 503 and binary recording 504.It can be by institute of the storage location after binary recording 501 to be deleted in this step
Have binary recording: the storage content of binary recording 502, binary recording 503 and binary recording 504, and storage are suitable
Sequence is backed up.
Further, backup operation can be set according to actual needs by the position of binary recording backup (such as: it is slow
Deposit, peripheral hardware stores equipment etc.), here without limitation.
S402, the last item binary recording stored since binary file, from back to front successively one by one to two
System record is deleted, until deleting the binary recording to be deleted stored in binary file.
Further, this step can be specifically embodied as: the last item binary recording stored from binary file
Starting, successively binary recording being covered one by one using filling character from back to front, until will be stored in binary file
Binary recording to be deleted covering until.
Further, as shown in Fig. 5 b~5e, the last item binary recording 504 to store from binary file is opened
Begin, successively binary recording 503~502 and binary recording to be deleted 501 are carried out one by one using filling character from back to front
The binary file schematic diagram of covering, Fig. 5 b are using the text of the binary system after being covered binary recording 504 of filling character
Part, Fig. 5 c are using the binary file after being covered binary recording 503 of filling character, and Fig. 5 d is that use is filled character
Binary file after binary recording 502 is covered, Fig. 5 e are that use is filled character binary recording 501 to be deleted
Binary file after being covered.
S403, it is obtained by predetermined manner by before the deletion of the last item binary recording, storage location is to be deleted two
The storage content and storage order of all binary recordings after system record.
Further, in this embodiment predetermined manner is to obtain to execute the present embodiment S401 from backup binary recording
It the storage content of all binary recordings of the storage location after binary recording to be deleted and is deposited in binary file before
Storage sequence.
S404, be deleted with record to be deleted before storage location in binary file be starting writing position, will
All binary recordings being stored in after binary recording to be deleted, according to be deleted before in binary file in the past extremely
Storage order afterwards, is sequentially written in binary file.
Further, by the storage content and storage order of the binary recording of the step S403 backup obtained, it may be assumed that two into
System record 502, binary recording 503 and binary recording 504.In this step, with the storage of binary recording 501 to be deleted
Position be starting writing position, by binary recording 502, binary recording 503 and binary recording 504 be sequentially written in two into
File processed.Fig. 5 f is that binary recording 502 is written to schematic diagram after binary file, and Fig. 5 g is that binary recording 503 is written
Schematic diagram after binary file, Fig. 5 h are that binary recording 504 is written to schematic diagram after binary file.
As it can be seen that the content after binary recording 504 is filling after binary file is written in binary recording 504
Redundant data is not present between binary recording for character, and each binary recording compact arrangement in binary file, so that
Binary file can be resolved.
Embodiment 2:
In the embodiment of the present invention 2, a kind of data-erasure method, SIM are provided for the binary file stored in SIM card
Block and any instruction for operating and requiring to manage platform according to SIM card is carried out to the binary file of itself storage, is not receiving
When SIM card manages the instruction of platform, SIM card will not carry out any operation to the binary file of itself storage, and in SIM card
There is backup in SIM card management platform in the binary file of storage.
A kind of data-erasure method provided in an embodiment of the present invention, as shown in fig. 6, specifically comprising the following steps:
S601, the deletion instruction that SIM card management platform is sent is received.
Further, it in this step, deletes instruction and is used to indicate the last item two that SIM card is stored from binary file
System record starts, and from back to front successively deletes every binary recording, until will be stored in binary file to
Until deleting binary recording deletion.
S602, SIM card indicate according to deletion received in S601, the last item binary system stored from binary file
Record starts, and successively deletes from back to front every binary recording, until to be deleted by what is stored in binary file
Until binary recording is deleted.
Further, the deletion process in this step may refer to Fig. 5 a~Fig. 5 e, and details are not described herein again.
Before S603, the last item binary recording for receiving SIM card management platform transmission are deleted, storage location is wait delete
Except the storage content and storage order of all binary recordings after binary recording.
Further, in this embodiment predetermined manner is the mode obtained from SIM card management platform.Due in SIM card
There is backup in SIM card management platform in the binary file of storage, although SIM card manages SIM card in step S602
Binary recording indicated by platform is deleted, and is still had these in SIM card management platform and is deleted binary system note on the sim card
The storage content and storage order of record.
S604, the write instructions that SIM card management platform is sent are received.
Further, in this step, write instructions are used to indicate before SIM card is deleted with record to be deleted in binary system
Storage location in file is starting writing position, and all binary systems of the storage location after binary recording to be deleted are remembered
Record is sequentially written in binary file according to the storage order before being deleted in binary file from front to back.
S605, SIM card are according to write instructions received in S604, in binary file before being deleted with record to be deleted
In storage location be starting writing position, by all binary recordings of the storage location after binary recording to be deleted,
According to the storage order before being deleted in binary file from front to back, it is sequentially written in binary file.
Further, the writing process in this step may refer to Fig. 5 f~Fig. 5 h, and details are not described herein again.
Further, in this embodiment managing the execution step of platform side as shown in fig. 7, may include: in SIM card
S701, it is sent to SIM card and deletes instruction,
Wherein, it deletes indicating to be used to indicate the last item binary recording that SIM card is stored since binary file,
Successively every binary recording is deleted from back to front, until the binary recording to be deleted that will be stored in binary file
Until deletion.
Before S702, the middle the last item binary recording that sends binary file to SIM card are deleted, storage location is wait delete
Except the storage content and storage order of all binary recordings after binary recording.
S703, write instructions are sent to SIM card,
Wherein, write instructions are used to indicate the storage before SIM card is deleted with record to be deleted in binary file
Position is starting writing position, by all binary recordings of the storage location after binary recording to be deleted, according to being deleted
Except the storage order before in binary file from front to back, it is sequentially written in binary file.
Embodiment 3:
In the embodiment of the present invention 3, another data-erasure method is provided for the binary file stored in SIM card,
In the present embodiment, the deletion instruction and write instructions that SIM card management platform is sent every time are directed to a binary recording.
A kind of data-erasure method provided in an embodiment of the present invention, as shown in figure 8, specifically comprising the following steps:
S801, current the last item binary system of binary file is remembered whenever receive that SIM card management platform sends
The deletion instruction deleted is recorded, deletes current the last item binary recording of binary file according to instruction is deleted；
Wherein, SIM card manages the deletion instruction that platform sends predetermined number to SIM card, predetermined number and binary file
In included from the last item binary recording to binary recording to be deleted binary recording item number it is equal.
Further, in this step, SIM card manages each deletion of platform and indicates to be directed to a binary recording, i.e., and two
Current the last item binary recording of binary file.
As shown in Fig. 5 a~Fig. 5 e, when receiving first deletion instruction, binary recording 504 is deleted, is obtained
Binary file is as shown in Figure 5 b, and when receiving second deletion instruction, binary recording 503 is deleted, two obtained into
File processed is as shown in Figure 5 c, and when receiving third deletion instruction, binary recording 502 is deleted, obtained binary system text
Part as fig 5d, when receiving the 4th deletion instruction, binary recording 501 to be deleted is deleted, obtained binary system
File is as depicted in fig. 5e, that is to say, that SIM card receives four deletions instruction, with from the last item binary recording 504 to
The item number (four) for deleting the binary recording that binary recording 501 is included is equal.
S802, it is write whenever the binary recording for receiving SIM card management platform transmission and by received binary recording
When entering the write instructions of binary file, the current of binary file is written into the binary recording received according to write instructions
At end；
Wherein, SIM card management platform stores position for before deleting the last item binary recording in binary file
Set all binary recordings after binary recording to be deleted, according to storage order from front to back, one by one by this two into
It makes the storage content of record and is sent to SIM card for the write instructions of the binary recording.
Further, in this step, the SIM card management each write instructions of platform are directed to a binary recording.Due to
The binary file stored in SIM card SIM card management platform exist backup, although in step S801 SIM card according to
Corresponding binary recording is deleted in the deletion instruction that SIM card manages platform, still has these in SIM in SIM card management platform
The storage content and storage order of binary recording are deleted on card.Therefore, SIM card management platform can be for binary system text
Before the last item binary recording is deleted in part, all binary systems note of the storage location after binary recording to be deleted
Record, according to storage order from front to back, one by one by the storage content of the binary recording and for the binary recording
Write instructions are sent to SIM card.
As shown in Fig. 5 f~Fig. 5 h, SIM card management platform can send binary recording 502 to SIM card first and will
The write instructions of binary file are written in binary recording 502, and working as binary file is written in binary recording 502 by SIM card
After at preceding end, as shown in figure 5f, SIM card manages platform and sends binary recording to SIM card again obtained binary file
503 and by binary recording 503 be written binary file write instructions, SIM card by binary recording 503 be written binary system
After at the current end of file, as shown in fig. 5g, SIM card manages platform can be finally to SIM card for obtained binary file
It sends binary recording 504 and binary recording 504 is written to the write instructions of binary file, SIM card remembers binary system
After at the current end of 504 write-in binary file of record, obtained binary file is as shown in figure 5h.
Further, in this embodiment in the execution step of SIM card management platform side, as shown in figure 9, may include:
S901, it determines in the binary file stored in SIM card from the last item binary recording to binary system to be deleted
Record included binary recording item number.
The deletion instruction of S902, the binary recording item number same number for sending and determining to SIM card,
Wherein, each deletion instruction be used to indicate SIM card by current the last item binary recording of binary file into
Row is deleted.
S903, it is directed to before the deletion of the last item binary recording in binary file, storage location is to be deleted two
All binary recordings after system record, according to storage order from front to back, one by one by the storage of the binary recording
Content and SIM card is sent to for the write instructions of the binary recording.
Based on the same inventive concept, the embodiment of the invention also provides a kind of data-removal apparatus and platforms, due to these
The principle of equipment and the solved problem of platform is similar to aforementioned data delet method, therefore the implementation of the equipment and platform can be joined
See the implementation of preceding method, overlaps will not be repeated.
A kind of data-removal apparatus provided in an embodiment of the present invention, as shown in Figure 10, comprising:
Removing module 1001, the last item binary recording for being stored since binary file, from back to front
It is successively deleted by a binary recording, until the binary recording to be deleted that will be stored in the binary file is deleted
Until；
Writing module 1002 is deposited for being obtained by predetermined manner by before the last item binary recording deletion
Storage space sets the storage content and storage order of all binary recordings after the binary recording to be deleted；And with institute
The storage location before record to be deleted is deleted in the binary file is stated as starting writing position, storage location is existed
All binary recordings after the binary recording to be deleted, according to be deleted before in the binary file in the past
Storage order after is sequentially written in the binary file.
Further, the equipment further include: backup module 1003；
The backup module 1003, the last item two for being stored from binary file in the removing module 1001
System record starts, and before successively deleting from back to front every binary recording, will store in the binary file
The storage content of all binary recordings of the position after the binary recording to be deleted and all binary system notes
The storage order recorded in binary file is backed up.
Further, above-mentioned data-removal apparatus can be any equipment for being stored with binary file,
Further, the removing module 1001 is also used in the last item binary system stored from binary file
Record starts, and before successively deleting from back to front every binary recording, receives the deletion that SIM card management platform is sent
Instruction；
The removing module 1001 is specifically used for the deletion instruction based on the received, stores from binary file
The last item binary recording starts, and successively deletes from back to front every binary recording, until by the binary system
Until the binary recording to be deleted stored in file is deleted；Wherein, the binary file is the binary system stored in SIM card
File；.
Further, the removing module 1001, specifically for will be described whenever receive that SIM card management platform sends
The deletion instruction that current the last item binary recording of binary file is deleted, indicates according to the deletion by described two
Current the last item binary recording of binary file is deleted；
Wherein, the SIM card manages the deletion instruction that platform sends predetermined number to the SIM card, described default
Included from the last item binary recording to the binary recording to be deleted in number and the binary file two into
Record strip number processed is equal；The binary file is the binary file stored in SIM card.
Further, the write module 1002, the described the last item sent specifically for receiving SIM card management platform
Before binary recording is deleted, storage location is in the storage of all binary recordings after the binary recording to be deleted
Appearance and storage order；And receive the write instructions that SIM card management platform is sent；And said write indicates based on the received,
Storage location before being deleted with the record to be deleted in the binary file is starting writing position, will store position
Set all binary recordings after the binary recording to be deleted, according to be deleted before in the binary file
Storage order from front to back is sequentially written in the binary file；The binary file is the binary system stored in SIM card
File.
Further, the write module 1002, specifically for whenever the binary system for receiving SIM card management platform transmission
When recording and the write instructions of the binary file are written in received binary recording, it will be connect according to said write instruction
The binary recording received is written at the current end of the binary file；
Wherein, the SIM card management platform, which is directed in the binary file, deletes the last item binary recording
Except before, all binary recordings of the storage location after the binary recording to be deleted, according to storage from front to back
Sequentially, the SIM is sent to by the storage content of the binary recording and for the write instructions of the binary recording one by one
Card；The binary file is the binary file stored in SIM card.
Further, the above-mentioned data-removal apparatus with SIM card can be any equipment that can place SIM card, example
Such as: mobile phone terminal.
Further, for the data-removal apparatus with SIM card, the embodiment of the present invention can also provide a kind of SIM card
One of platform is managed, as shown in figure 11, including following module:
Indicating module 1101 is deleted, deletes instruction for sending to SIM card, wherein the deletion instruction is used to indicate institute
Stating the last item binary recording that SIM card is stored since binary file, successively every binary system is remembered from back to front
Record is deleted, until the binary recording to be deleted that will be stored in the binary file is deleted；
Content sending module 1102 is written, for the SIM card send in the binary file the last item two into
Before record deletion processed, the storage content of all binary recordings of the storage location after the binary recording to be deleted and
Storage order；
Write instructions module 1103, for sending write instructions to the SIM card, wherein said write is indicated for referring to
Show the storage location before the SIM card is deleted with the record to be deleted in the binary file for starting write-in position
Set, by all binary recordings of the storage location after the binary recording to be deleted, according to before being deleted described
Storage order in binary file from front to back is sequentially written in the binary file.
Further, for the data-removal apparatus with SIM card, the embodiment of the present invention can also provide a kind of SIM card
The two of platform are managed, as shown in figure 12, including following module:
Determining module 1201, for determine in the binary file stored in SIM card from the last item binary recording to
The binary recording item number that binary recording to be deleted is included；
Indicating module 1202 is deleted, for sending and determining binary recording item number same number to the SIM card
Delete instruction, wherein each deletion instruction is used to indicate the current the last item of the SIM card by the binary file
Binary recording is deleted；
Write instructions module 1203, for the last item binary recording to be deleted it in the binary file
Before, all binary recordings of the storage location after binary recording to be deleted, according to storage order from front to back, one by one
SIM card is sent to by the storage content of the binary recording and for the write instructions of the binary recording.
The function of above-mentioned each unit can correspond to the respective handling step in process shown in Fig. 3 to Fig. 4, Fig. 6 to Fig. 9,
This is repeated no more.
A kind of data-erasure method, equipment and platform provided in an embodiment of the present invention, comprising: stored from binary file
The last item binary recording start, successively deleted from back to front by a binary recording, until by binary system text
Until the binary recording to be deleted stored in part is deleted；It is obtained by predetermined manner and the last item binary recording is deleted it
Before, the storage content and storage order of all binary recordings of the storage location after binary recording to be deleted；Wait delete
Storage location in binary file is starting writing position before being deleted except record, by storage location to be deleted two into
All binary recordings after system record, according to storage order in binary file from front to back before being deleted, according to
Secondary write-in binary file.Data-erasure method provided in an embodiment of the present invention, the last item stored from binary file
Binary recording starts, successively delete from back to front every binary recording, until will store in binary file
Until binary recording to be deleted is deleted, compared with the data-erasure method that the prior art provides, even if deleting binary system note
It is abnormal during record, due to being deleted forward since the last item binary recording, present in binary file
Binary recording still can compact arrangement, do not appear between two effective binary recordings that there are the feelings of redundant data
Condition ensure that binary file can parse.
Through the above description of the embodiments, those skilled in the art can be understood that the embodiment of the present invention
The mode of necessary general hardware platform can also be added to realize by software by hardware realization.Based on such reason
Solution, the technical solution of the embodiment of the present invention can be embodied in the form of software products, which can store one
In a non-volatile memory medium (can be CD-ROM, USB flash disk, mobile hard disk etc.), including some instructions are used so that a meter
It calculates machine equipment (can be personal computer, server or the network equipment etc.) and executes side described in each embodiment of the present invention
Method.
It will be appreciated by those skilled in the art that attached drawing is the schematic diagram of a preferred embodiment, module or stream in attached drawing
Journey is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in device in embodiment can describe be divided according to embodiment
It is distributed in the device of embodiment, corresponding change can also be carried out and be located in one or more devices different from the present embodiment.On
The module for stating embodiment can be merged into a module, can also be further split into multiple submodule.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (16)
1. a kind of data-erasure method characterized by comprising
The last item binary recording stored since binary file, from back to front successively one by one to binary recording
It is deleted, until the binary recording to be deleted that will be stored in the binary file is deleted；
By predetermined manner obtain by the last item binary recording delete before, storage location described to be deleted two into
The storage content and storage order of all binary recordings after system record；
Storage location before being deleted with the record to be deleted in the binary file is starting writing position, will be deposited
Storage space sets all binary recordings after the binary recording to be deleted, according to literary in the binary system before being deleted
Storage order in part from front to back is sequentially written in the binary file.
2. the method as described in claim 1, which is characterized in that in the last item binary system note stored from binary file
Record starts, before successively deleting from back to front every binary recording, further includes:
By depositing for all binary recordings of the storage location in the binary file after the binary recording to be deleted
The storage order of content and all binary recordings in binary file is stored up to be backed up.
3. the method as described in claim 1, which is characterized in that the binary file is the binary system text stored in SIM card
Part；
The last item binary recording stored since binary file, from back to front successively to every binary recording
Before being deleted, further includes:
Receive the deletion instruction that SIM card management platform is sent；
The last item binary recording stored since binary file, from back to front successively to every binary recording into
Row is deleted, and until the binary recording to be deleted that will be stored in the binary file is deleted, is specifically included:
The SIM card based on the received open by the deletion instruction, the last item binary recording stored from binary file
Begin, successively every binary recording is deleted from back to front, until will be stored in the binary file to be deleted two
Until system record deletion.
4. the method as described in claim 1, which is characterized in that the binary file is the binary system text stored in SIM card
Part；
The last item binary recording stored since binary file, from back to front successively to every binary recording into
Row is deleted, and until the binary recording to be deleted that will be stored in the binary file is deleted, is specifically included:
It is carried out whenever receiving current the last item binary recording by the binary file that SIM card management platform is sent
The deletion of deletion indicates, deletes current the last item binary recording deletion of the instruction by the binary file according to described；
Wherein, the SIM card manages the deletion instruction that platform sends predetermined number to the SIM card, the predetermined number
Remember with the binary system for being included from the last item binary recording to the binary recording to be deleted in the binary file
It is equal to record item number.
5. the method as described in claim 1, which is characterized in that the binary file is the binary system text stored in SIM card
Part；
By predetermined manner obtain by the last item binary recording delete before, storage location described to be deleted two into
The storage content and storage order of all binary recordings after system record, specifically include:
Before receiving the last item binary recording deletion that SIM card management platform is sent, storage location is described wait delete
Except the storage content and storage order of all binary recordings after binary recording；
Storage location before being deleted with the record to be deleted in the binary file is starting writing position, will
All binary recordings of the storage location after the binary recording to be deleted, according to be deleted before in the binary system
Storage order in file from front to back is sequentially written in front of the binary file, further includes:
Receive the write instructions that SIM card management platform is sent；
Storage location before being deleted with the record to be deleted in the binary file is starting writing position, will be deposited
Storage space sets all binary recordings after the binary recording to be deleted, according to literary in the binary system before being deleted
Storage order in part from front to back is sequentially written in the binary file, specifically includes:
Said write indicates the SIM card based on the received, in the binary system text before being deleted with the record to be deleted
Storage location in part is starting writing position, by all binary systems of the storage location after the binary recording to be deleted
Record is sequentially written in the binary system text according to the storage order before being deleted in the binary file from front to back
Part.
6. the method as described in claim 1, which is characterized in that the binary file is the binary system text stored in SIM card
Part；
By predetermined manner obtain by the last item binary recording delete before, storage location described to be deleted two into
The storage content and storage order of all binary recordings after system record；In institute before being deleted with the record to be deleted
The storage location in binary file is stated for starting writing position, by storage location after the binary recording to be deleted
All binary recordings are sequentially written in institute according to the storage order before being deleted in the binary file from front to back
Binary file is stated, is specifically included:
Whenever receive SIM card management platform send binary recording and by received binary recording write-in described two into
When the write instructions of file processed, indicated the binary recording received working as the binary file is written according to said write
At preceding end；
Wherein, the last item binary recording is deleted it in the binary file by the SIM card management platform
Before, all binary recordings of the storage location after the binary recording to be deleted, according to storage order from front to back,
The SIM card is sent to by the storage content of the binary recording and for the write instructions of the binary recording one by one.
7. a kind of data-erasure method characterized by comprising
It is sent to SIM card and deletes instruction,
Wherein, the deletion instruction is used to indicate the last item binary recording that the SIM card is stored from binary file
Start, successively every binary recording is deleted from back to front, until to be deleted by what is stored in the binary file
Until binary recording is deleted；
It is sent in the binary file before the deletion of the last item binary recording to the SIM card, storage location is described
The storage content and storage order of all binary recordings after binary recording to be deleted；
Write instructions are sent to the SIM card,
Wherein, said write instruction is used to indicate before the SIM card is deleted with the record to be deleted in the binary system
Storage location in file is starting writing position, by storage location after the binary recording to be deleted all two into
System record is sequentially written in the binary system according to the storage order before being deleted in the binary file from front to back
File.
8. a kind of data-erasure method characterized by comprising
It determines in the binary file stored in SIM card and is included from the last item binary recording to binary recording to be deleted
Binary recording item number；
It sends to the SIM card and is indicated with the deletion of the binary recording item number same number determined,
Wherein, each deletion instruction be used to indicate the SIM card by current the last item two of the binary file into
System record is deleted；
For before deleting the last item binary recording in the binary file, storage location is remembered in binary system to be deleted
All binary recordings after record, according to storage order from front to back, one by one by the storage content of the binary recording with
And SIM card is sent to for the write instructions of the binary recording.
9. a kind of data-removal apparatus characterized by comprising
Removing module, the last item binary recording for being stored since binary file, from back to front successively one by one
Binary recording is deleted, until the binary recording to be deleted that will be stored in the binary file is deleted；
Writing module, for being obtained by predetermined manner by before the last item binary recording deletion, storage location exists
The storage content and storage order of all binary recordings after the binary recording to be deleted；And with described to be deleted
Storage location before record is deleted in the binary file is starting writing position, by storage location described wait delete
Except all binary recordings after binary recording, according to before being deleted in the binary file depositing from front to back
Storage sequence, is sequentially written in the binary file.
10. equipment as claimed in claim 9, which is characterized in that further include: backup module；
The backup module, the last item binary recording for storing from binary file in the removing module are opened
Begin, before successively deleting from back to front every binary recording, by storage location in the binary file described
The storage content of all binary recordings after binary recording to be deleted and all binary recordings are in binary system
Storage order in file is backed up.
11. equipment as claimed in claim 9, which is characterized in that the removing module is also used to depositing from binary file
The last item binary recording of storage starts, and before successively deleting from back to front every binary recording, receives SIM card
Manage the deletion instruction that platform is sent；
The removing module is specifically used for the deletion instruction based on the received, the last item stored from binary file
Binary recording starts, and successively deletes from back to front every binary recording, until will deposit in the binary file
Until the binary recording to be deleted of storage is deleted；Wherein, the binary file is the binary file stored in SIM card.
12. equipment as claimed in claim 9, which is characterized in that the removing module, specifically for whenever receiving SIM card
The deletion instruction for deleting current the last item binary recording of the binary file of management platform transmission, according to
It is described to delete current the last item binary recording deletion of the instruction by the binary file；
Wherein, the SIM card manages the deletion instruction that platform sends predetermined number to the SIM card, the predetermined number
Remember with the binary system for being included from the last item binary recording to the binary recording to be deleted in the binary file
It is equal to record item number；The binary file is the binary file stored in SIM card.
13. equipment as claimed in claim 9, which is characterized in that it is flat to be specifically used for reception SIM card management for the write module
Before the last item binary recording that platform is sent is deleted, institute of the storage location after the binary recording to be deleted
There are the storage content and storage order of binary recording；And receive the write instructions that SIM card management platform is sent；And according to
Received said write instruction, the storage location before being deleted with the record to be deleted in the binary file are
Beginning writing position, by all binary recordings of the storage location after the binary recording to be deleted, according to being deleted it
The preceding storage order in the binary file from front to back, is sequentially written in the binary file；The binary file
For the binary file stored in SIM card.
14. equipment as claimed in claim 9, which is characterized in that the write module, specifically for whenever receiving SIM card
When managing the binary recording of platform transmission and the write instructions of the binary file be written in received binary recording,
It indicates the binary recording received to be written at the current end of the binary file according to said write；
Wherein, the last item binary recording is deleted it in the binary file by the SIM card management platform
Before, all binary recordings of the storage location after the binary recording to be deleted, according to storage order from front to back,
The SIM card is sent to by the storage content of the binary recording and for the write instructions of the binary recording one by one；Institute
Stating binary file is the binary file stored in SIM card.
15. a kind of SIM card manages platform characterized by comprising
Delete indicating module, delete instruction for sending to SIM card, wherein deletions indicate to be used to indicate the SIM card from
The last item binary recording stored in binary file starts, and successively deletes from back to front to every binary recording
It removes, until the binary recording to be deleted that will be stored in the binary file is deleted；
Content sending module is written, is deleted for sending the last item binary recording in the binary file to the SIM card
Except before, the storage content of all binary recordings of the storage location after the binary recording to be deleted and storage are suitable
Sequence；
Write instructions module, for sending write instructions to the SIM card, wherein said write instruction is used to indicate the SIM
Card is starting writing position with storage location of the record to be deleted before deleted in the binary file, will be stored
All binary recordings of the position after the binary recording to be deleted, according to be deleted before in the binary file
In storage order from front to back, be sequentially written in the binary file.
16. a kind of SIM card manages platform characterized by comprising
Determining module, for determining in the binary file stored in SIM card from the last item binary recording to be deleted two
System records included binary recording item number；
Indicating module is deleted, is indicated for being sent to the SIM card with the deletion of the binary recording item number same number determined,
Wherein, each current the last item binary system note deleted instruction and be used to indicate the SIM card for the binary file
Record is deleted；
Write instructions module, for storing position for before deleting the last item binary recording in the binary file
Set all binary recordings after binary recording to be deleted, according to storage order from front to back, one by one by this two into
It makes the storage content of record and is sent to SIM card for the write instructions of the binary recording.
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