CN107180195A - Electronic document Life cycle safety protecting method based on safety label - Google Patents
Electronic document Life cycle safety protecting method based on safety label Download PDFInfo
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- CN107180195A CN107180195A CN201710351467.4A CN201710351467A CN107180195A CN 107180195 A CN107180195 A CN 107180195A CN 201710351467 A CN201710351467 A CN 201710351467A CN 107180195 A CN107180195 A CN 107180195A
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- Prior art keywords
- document
- electronic document
- safety label
- information
- safety
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6209—Protecting access to data via a platform, e.g. using keys or access control rules to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0807—Network architectures or network communication protocols for network security for authentication of entities using tickets, e.g. Kerberos
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
Abstract
The invention discloses a kind of electronic document Life cycle safety protecting method based on safety label, wherein, including：Judge whether user possesses the access rights of document；Verify the integrality of document；Carry out the decryption of electronic document；Judge the authority managing and controlling information of safety label, then document is committed to circulation person liable's terminal；Document is read, replicated and during edit operation, the authority managing and controlling information of safety label is judged；When being destroyed to document, by the way that document is committed into destruction person liable's terminal, by destroying the examination ＆ approval of person liable's terminal；The person liable's terminal that circulates carries out approval information；Being read to document, replicate and during edit operation, judge the authority managing and controlling information of safety label, the operation to user carries out management and control；When carrying out outgoing to document, by the way that document is committed into outgoing person liable's terminal, the authority information for the person liable's terminal modifications safety label that circulates determines that document can only carry out controllable operating in known terminal.
Description
Technical field
The invention belongs to technical field of network security, it is proposed that a kind of electronic document Life cycle based on safety label
Security architecture.
Background technology
State secret and business secret are country, government, the important intangible asset of enterprise and core competitiveness, electronic document
The common carrier of this kind of assets, safety label 1 can realize the state recording to electronic document Life cycle, trajectory track and
Fine granularity security management and control, the electronic document based on safety label produce, circulation, using, storage and destroy Life cycle
In, face following 5 potential safety hazards.
(1) electronic document based on safety label produces the potential safety hazard in stage
Electronic document produces the stage, it is impossible to which clear and definite electronic document knows scope, authority, level of confidentiality and security deadline, level of confidentiality
It is difficult to review document track after change, security level identification is easily distorted.It is fixed that close (multistage is examined the problem of there is equivocal, cognitive differ
Criticize, specify fixed close approver).
(2) potential safety hazard in the electronic document circulation stage based on safety label
The diversity and dispersiveness of electronic document, frequently circulation and shared, the situation palm of the shortage to a large amount of electronic documents
Control and complete detailed circulation audit.Electronic document internally network transmission when, there is High Security Level electronic document and flow to Low Security Level
User；In non-internal network transport, there is the potential safety hazard such as be stolen, deny sending and receiving in transmission electronic document；Outside
During hair, there is electronic document is not the potential safety hazard read by file reception people.
(3) potential safety hazard of the electronic document application stage based on safety label
Different operating department, job specification personnel it is different to the demand of electronic document, if the limiting operation of electronic document
There is the potential safety hazards such as unauthorized access, copy electronic document without fine granularity control in authority,
(4) potential safety hazard in the electronic document storage stage based on safety label
It is stored in the electronic document of terminal and server, storing process and there is electronic document and be tampered, reveal, destroy
Potential safety hazard.Important electronic document storage lacks perfect management and control means in external environment condition.
(5) electronic document based on safety label destroys the potential safety hazard in stage
Delete after electronic document, need to prevent from recovering electronic document by data recovery means, and obtain sensitive information, if
Go beyond one's commission after use, document should be destroyed immediately.
The content of the invention
It is above-mentioned for solving it is an object of the invention to provide managing and control system in a kind of document sets based on virtualization technology
Problem of the prior art.
A kind of electronic document Life cycle safety protecting method based on safety label of the present invention, wherein, including：S1、
When request creates electronic document, according to the strategy generating safety label issued, by contrasting the authority managing and controlling information of safety label,
Judge whether the access rights for possessing document, if not possessing access rights, perform step S10, if possessing access rights, perform step
Rapid S2；S2, document are in encrypted state, judge the unsymmetrical key information of safety label, pass through the school of unsymmetrical key information
Value is tested, the public key information of document creator is contrasted, the integrality of document is verified, if checking does not pass through, step S10 is performed, if testing
Card passes through, and performs step S3；S3, by symmetric key information, carry out the decryption of electronic document, determine document function content, such as
To destroy document, then S4 is performed, such as to circulate and sending operation, then perform S5, be such as reading, replicate and edit operation, then
Perform step S6；S4, document is committed to destruction person liable's terminal, performs step S7；S5, the authority managing and controlling for judging safety label
Information, if having outgoing or circulation authority, if so, document then is committed into circulation person liable's terminal, perform step S8, if
No, then step S11 is performed；S6, document is read, replicated and during edit operation, judging the authority pipe of safety label
Control information, if having reading, duplication and editing authority, if so, then performing step S9, otherwise perform step S10；S7,
When being destroyed to document, by the way that document is committed into destruction person liable's terminal, by destroying the examination ＆ approval of person liable's terminal, work as safety post
Sign the approval status of destroying information for by when, the document can be destroyed, otherwise, perform step S11；S8, circulation responsibility
People's terminal carries out approval information, and such as circulation person liable's terminal is by the way that the approval information of document is set to by state, then this article
Shelves can be circulated or outgoing, perform step S12, otherwise, perform step S11；S9, being read to document, replicate and
During edit operation, judge the authority managing and controlling information of safety label, management and control carried out to the operation of user, read in user and
During write operation, the number of times read and write in corresponding safety label subtracts 1, when the reading in safety label and the number of times write are 0, refusal
The operation of user and record；S10, document locked, and record locking reason；S11, failure cause is back to sender,
And record reason；S12, user, by the way that document is committed into outgoing person liable's terminal, work as safety when carrying out outgoing to document
The outgoing number of times of label authority managing and controlling information is more than 1, the authority information for the person liable's terminal modifications safety label that circulates, and determines document
Controllable operating can be only carried out in known terminal.
According to the present invention the electronic document Life cycle safety protecting method based on safety label an embodiment, its
In, in electronic document Life cycle, document management and control server need to be disposed, the terminal disposition of document management and control need to carried out, text
Shelves management and control server is responsible for the generation of safety label with using.
According to the present invention the electronic document Life cycle safety protecting method based on safety label an embodiment, its
In, the stage is produced in electronic document, when user creates document, inner nuclear layer driving capture establishment event creates safety label, safety
Label preserves the base attribute of electronic document, level of confidentiality attribute and document ownership attribute, and base attribute, which includes system, to be used to determine
Unique ID of document, unique ID are without changing in the Life cycle of electronic document, and base attribute also includes electronic document
Title, author, establishment and modification time, classification and path；Draft level of confidentiality, the level of confidentiality that level of confidentiality attribute includes document examine shape
State, security level identification state and security deadline；Document ownership attribute includes the unit or department's mark that electronic document is produced.
According to the present invention the electronic document Life cycle safety protecting method based on safety label an embodiment, its
In, in the electronic document storage stage, safety label preserves the cryptographic attributes of electronic document, by tying up for symmetric key and electronic document
Determine relation to send to document management and control server, cryptographic attributes include symmetric key information and unsymmetrical key information, encrypted state
And AES, symmetric key information includes certificate, check value and AES content, different based on key
The different key information of file correspondence, generates electronic document ciphertext.
According to the present invention the electronic document Life cycle safety protecting method based on safety label an embodiment, its
In, circulated the stage in electronic document, safety label preserves the unsymmetrical key information and approval information of electronic document, asymmetric close
The key information content includes signing certificate, check value and AES, using the private key of founder to safety label and electronics text
Shelves ciphertext is integrally signed, and recipient during circulation is signed with the public key verifications of electronic document founder；Approval information includes
The approval status that circulates and examination ＆ approval user.
According to the present invention the electronic document Life cycle safety protecting method based on safety label an embodiment, its
In, the control of authority information issued in electronic document service stage, safety label according to document management and control server preserves electronics text
The control of authority information of the safety label of shelves, control of authority information includes authorized user message, reading and writing, printing, imprinting, screenshotss
And watermark, for the different classes of corresponding authority of document setup, fine-grained control, reading, editor, printing and imprinting
The switch and number of times of function, and whether watermark is shown when using, when more than access times, electronic document is locked and can not made
With.
According to the present invention the electronic document Life cycle safety protecting method based on safety label an embodiment, its
In, electronic document destroy the stage, the destroying information of the clear and definite electronic document of safety label, when document produce, storage, circulation and
During use, if there is a situation where to go beyond one's commission in violation of rules and regulations, electronic document self-locked, and destroying information is updated.
The present invention faces different potential safety hazards by studying electronic document in its life cycle different phase, and electronics is literary
Shelves safety label need to specifically be designed in per stage, coordinate other necessary security protection means, and the present invention proposes one
The electronic document Life cycle safety protecting method based on safety label is planted, is provided for government, enterprise based on safety label
Life cycle electronic document security protection ability.
Brief description of the drawings
Fig. 1 show the electronic document Life cycle security architecture module map based on safety label；
The life cycle that Fig. 2 show safety label uses flow chart；
Fig. 3 show the flow chart of the electronic document Life cycle safety protecting method of the invention based on safety label.
Embodiment
To make the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to the present invention's
Embodiment is described in further detail.
Fig. 1 show the electronic document Life cycle security architecture module map based on safety label, such as Fig. 1 institutes
Show, the electronic document Life cycle security architecture based on safety label is divided into three parts, Part I is electronics text
Shelves safety label 1, different phase of the safety label 1 in electronic document Life cycle provides different security functions, second
Part is electronic document running environment safety 2, and physical environment, terminal and server, network and application are the full life of electronic document
Cycle provides security mechanism guarantee, and Part III is document security management system 3, in electronic document lifecycle management,
The security system that should be taken.
As shown in figure 1, in electronic document Life cycle, document management and control server need to be disposed, document pipe need to carried out
The terminal disposition of control, document management and control service end is responsible for the generation of safety label 1 and used with software, realizes to the complete of electronic document
Life cycle management.
The life cycle that Fig. 2 show safety label uses flow chart, as shown in Figure 1 and Figure 2, the life of safety label
Cycle uses flow, including：
The stage is produced in electronic document, when user creates document, inner nuclear layer driving capture establishment event creates safety label
1.Safety label 1 preserves the base attribute of electronic document, level of confidentiality attribute and document ownership attribute, and base attribute is used including system
In it is determined that unique ID of document, unique ID in the Life cycle of electronic document without change, base attribute also comprising electricity
The content such as title, author, establishment and the modification time of subdocument, classification, path；Level of confidentiality attribute include document draft level of confidentiality,
The contents such as level of confidentiality approval status, security level identification state, security deadline；Document ownership attribute include electronic document produce unit or
Department identifies.
In the electronic document storage stage, safety label 1 preserves the encryption information of electronic document, by symmetric key and electronics text
The binding relationship of shelves is sent to document management and control service end.Encryption information includes symmetric key information and unsymmetrical key information, added
The contents such as close state, AES, symmetric key information includes the contents such as certificate, check value and AES, thinks key
Based on, using literary first secretary's mechanism, the different key information of different file correspondences generates electronic document ciphertext, can improved
The security of storage is encrypted, is prevented after some file is cracked, causing the leakage of high-volume file, there is provided to electronic document
Encipherment protection is stored, prevents the information of storage to be stolen.
Circulated the stage in electronic document, safety label 1 preserves the unsymmetrical key information of electronic document, approval information, non-
Symmetric key information content includes the contents such as signing certificate, check value, AES, using the private key of founder to safety label
1 and electronic document ciphertext integrally signed, to ensure genuineness of document, recipient during circulation is with electronic document founder's
Public key verifications sign, prevent participate in electronic document circulation either or both deny done operation ensure transmit confidentiality,
Integrality and non-repudiation；Approval information includes circulation approval status, examination ＆ approval user, prevents the personnel for not possessing examination ＆ approval qualification from entering
The examination ＆ approval of row outgoing, Internal Transfer.
The control of authority information issued in electronic document service stage, safety label 1 according to document management and control server, is preserved
The control of authority information of the safety label 1 of electronic document, control of authority information includes authorized user message, reading and writing, printing, quarter
The contents such as record, screenshotss, watermark, for the different classes of corresponding authority of document setup, fine-grained control, reading, editor, beat
Print, the switch and number of times of recording function, and the management and control such as watermark whether are shown when using, when more than access times, electronic document
Lock and can not use, prevent Low Security Level librarian use High Security Level electronic document.
Destroyed the stage in electronic document, the destroying information of the clear and definite electronic document of safety label 1, destroying information includes destroying shape
The contents such as state, document user can be in routine use phase application document destruction, when document is being produced, stores, circulates and used
During, if there is a situation where to go beyond one's commission in violation of rules and regulations, electronic document self-locked, and update destroying information.
Fig. 3 show the flow chart of the electronic document Life cycle safety protecting method of the invention based on safety label,
As shown in Figure 1-Figure 3,
Electronic document Life cycle safety protecting method of the invention based on safety label includes：
When S1, user's request create electronic document, the strategy generating safety label 1 issued according to service end.By right
Than the authority managing and controlling information of safety label 1, judge whether user possesses the authorities such as the access of document, if not possessing access right
Limit, performs step S10, if possessing access rights, performs step S2；
S2, document are in encrypted state, the unsymmetrical key information of the encryption information of safety label 1 are judged, by non-right
Claim the check value of key information, contrast the public key information of document creator, verify the integrality of document, it is ensured that document is not broken
It is bad, if checking does not pass through, step S10 is performed, if being verified, step S3 is performed；
S3, the symmetric key information by encryption information, realize the decryption of electronic document, determine the document function of user
Content, is such as destruction document, then performs S4, is such as circulation operation, then performs S5, is such as to read, replicate and editor's operation,
Then perform step S6；
S4, user, by the way that document is committed into destruction person liable's terminal, perform step when being destroyed to document
S7；
S5, user judge the authority managing and controlling information of safety label 1 when carrying out Internal Transfer operation to document, if
There are the authorities such as outgoing, Internal Transfer, if (when the Internal Transfer number of times of the authority managing and controlling information of safety label 1 is more than 1), then will
Document is committed to Internal Transfer person liable's terminal, performs step S8, if it is not, performing step S11；
S6, user being read to document, replicate and during edit operation, judge the authority managing and controlling of safety label 1
Information, if having the authorities such as reading, duplication and editor, if so, then performing step S9, otherwise performs step S10；
S7, user to document when destroying, by the way that document is committed into destruction person liable's terminal, by destruction responsibility
People's terminal examine, when the destroying information of safety label 1 approval status for by when, the document can be destroyed, otherwise, perform
Step S11；
S8, Internal Transfer person liable terminal carry out approval information, and such as circulation person liable's terminal is by the way that the examination ＆ approval of document are believed
Breath is set to by state, then the document can carry out Internal Transfer or outgoing, performs step S12, otherwise, performs step S11；
S9, user judge the authority managing and controlling information of safety label 1, to using when entering the operation such as edlin to document
The operation of person carries out management and control, user read and write wait operate when, the number of times of reading and writing subtracts 1 in corresponding safety label 1, when
When number of operations is 0 in safety label 1, refuse operation and the record of user；
S10, document locked, and record locking reason；
S11, failure cause is back to sender, and records reason；
S12, user, by the way that document is committed into outgoing person liable's terminal, work as safety post when carrying out outgoing to document
The outgoing number of times for signing 1 authority managing and controlling information is more than 1, and the authority information of circulation person liable's terminal modifications safety label 1 determines document
Controllable operating can be only carried out in known terminal.Known terminal is the outgoing terminal mac that authority information is defined by safety label 1
The information such as address, terminal serial number, controllable operating is that the operating rights such as reading and writing, printing to document are defined by safety label 1
Limit.
In electronic document Life cycle, running environment and the main security function of document security management system 3 are as follows：
Physical environment secure context, office space, discrepancy personnel etc. need to have corresponding security protection means, prevent unauthorized
Personnel obtain electronic document；In terms of network security, implement strict access control policy and mechanism, killing malicious code, and open
With the safety measures such as IPS, border detection, protection electronic document storage, the network environment of transmission；It is right in terms of Host Security
Terminal and server carry out security hardening, formulate strict identity and differentiate and access control policy, upgrade in time security patch and
A series of Host Security management and control measures such as anti-malicious code software；Using secure context, lifting application system during design application system
The system security of itself.The security of running environment is lifted, strict implement safety management system 3 is strengthened pacifying outside electronic document
Full technology and the security of management requirement, further lifting electronic document.
The present invention faces different potential safety hazards by studying electronic document in its life cycle different phase, and electronics is literary
Shelves safety label need to specifically be designed in per stage, coordinate other necessary security protection means, and the present invention proposes one
The electronic document Life cycle safety protecting method based on safety label is planted, is provided for government, enterprise based on safety label
Life cycle electronic document security protection ability.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and deformation can also be made, these improve and deformed
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of electronic document Life cycle safety protecting method based on safety label, it is characterised in that including：
When S1, request create electronic document, according to the strategy generating safety label issued, by the authority pipe for contrasting safety label
Information is controlled, judges whether the access rights for possessing document, if not possessing access rights, step S10 is performed, if possessing access right
Limit, performs step S2；
S2, document are in encrypted state, judge the unsymmetrical key information of safety label, pass through the verification of unsymmetrical key information
Value, contrasts the public key information of document creator, verifies the integrality of document, if checking does not pass through, performs step S10, if checking
Pass through, perform step S3；
S3, by symmetric key information, carry out the decryption of electronic document, determine document function content, such as to destroy document, then hold
Row S4, such as to circulate and sending operation, then performs S5, is such as reading, replicates and edit operation, then performs step S6；
S4, document is committed to destruction person liable's terminal, performs step S7；
S5, the authority managing and controlling information for judging safety label, if having outgoing or circulation authority, if so, being then committed to document
Circulate person liable's terminal, performs step S8, if it is not, performing step S11；
S6, document is read, replicated and during edit operation, judging the authority managing and controlling information of safety label, if read
Read, replicate and editing authority, if so, then performing step S9, otherwise perform step S10；
S7, when being destroyed to document, by by document be committed to destruction person liable's terminal, by destroy person liable's terminal examine
Batch, when safety label destroying information approval status for by when, the document can be destroyed, otherwise, perform step S11；
S8, circulation person liable terminal carry out approval information, and such as circulation person liable's terminal is by the way that the approval information of document is set to
By state, then the document can be circulated or outgoing, perform step S12, otherwise, perform step S11；
S9, being read to document, replicate and during edit operation, the authority managing and controlling information of safety label is judged, to using
The operation of person carries out management and control, when user carries out read and write operation, and the number of times read and write in corresponding safety label subtracts 1, when
When reading in safety label and the number of times write are 0, refuse operation and the record of user；
S10, document locked, and record locking reason；
S11, failure cause is back to sender, and records reason；
S12, user to document when carrying out outgoing, by the way that document is committed into outgoing person liable's terminal, when safety label power
The outgoing number of times for limiting management and control information is more than 1, the authority information for the person liable's terminal modifications safety label that circulates, and determines that document only can be
Controllable operating is carried out in known terminal.
2. the electronic document Life cycle safety protecting method as claimed in claim 1 based on safety label, its feature exists
In, in electronic document Life cycle, document management and control server need to be disposed, the terminal disposition of document management and control need to carried out, text
Shelves management and control server is responsible for the generation of safety label with using.
3. the electronic document Life cycle safety protecting method as claimed in claim 1 based on safety label, its feature exists
In, the stage is produced in electronic document, when user creates document, inner nuclear layer driving capture establishment event, establishment safety label, safety
Label preserves the base attribute of electronic document, level of confidentiality attribute and document ownership attribute, and base attribute, which includes system, to be used to determine
Unique ID of document, unique ID are without changing in the Life cycle of electronic document, and base attribute also includes electronic document
Title, author, establishment and modification time, classification and path；Draft level of confidentiality, the level of confidentiality that level of confidentiality attribute includes document examine shape
State, security level identification state and security deadline；Document ownership attribute includes the unit or department's mark that electronic document is produced.
4. the electronic document Life cycle safety protecting method as claimed in claim 2 based on safety label, its feature exists
In in the electronic document storage stage, safety label preserves the cryptographic attributes of electronic document, by tying up for symmetric key and electronic document
Determine relation to send to document management and control server, cryptographic attributes include symmetric key information and unsymmetrical key information, encrypted state
And AES, symmetric key information includes certificate, check value and AES content, different based on key
The different key information of file correspondence, generates electronic document ciphertext.
5. the electronic document Life cycle safety protecting method as claimed in claim 1 based on safety label, its feature exists
In in the electronic document circulation stage, safety label preserves the unsymmetrical key information and approval information of electronic document, asymmetric close
The key information content includes signing certificate, check value and AES, using the private key of founder to safety label and electronics text
Shelves ciphertext is integrally signed, and recipient during circulation is signed with the public key verifications of electronic document founder；Approval information includes
The approval status that circulates and examination ＆ approval user.
6. the electronic document Life cycle safety protecting method as claimed in claim 2 based on safety label, its feature exists
In the control of authority information issued in electronic document service stage, safety label according to document management and control server preserves electronics text
The control of authority information of the safety label of shelves, control of authority information includes authorized user message, reading and writing, printing, imprinting, screenshotss
And watermark, for the different classes of corresponding authority of document setup, fine-grained control, reading, editor, printing and imprinting
The switch and number of times of function, and whether watermark is shown when using, when more than access times, electronic document is locked and can not made
With.
7. the electronic document Life cycle safety protecting method as claimed in claim 1 based on safety label, its feature exists
In, electronic document destroy the stage, the destroying information of the clear and definite electronic document of safety label, when document produce, storage, circulation and
During use, if there is a situation where to go beyond one's commission in violation of rules and regulations, electronic document self-locked, and destroying information is updated.
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| CN201710351467.4A CN107180195A (en) | 2017-05-18 | 2017-05-18 | Electronic document Life cycle safety protecting method based on safety label |
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| CN201710351467.4A CN107180195A (en) | 2017-05-18 | 2017-05-18 | Electronic document Life cycle safety protecting method based on safety label |
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| CN107944284A (en) * | 2017-11-23 | 2018-04-20 | 国网浙江省电力公司电力科学研究院 | A kind of method and system of business data internal security management and control |
| CN108270782A (en) * | 2018-01-15 | 2018-07-10 | 中国科学院信息工程研究所 | A kind of access control method and system based on safety label |
| CN109614812A (en) * | 2018-09-25 | 2019-04-12 | 北京计算机技术及应用研究所 | File outgoing managing and control system and method under a kind of security application environment |
| CN110166451A (en) * | 2019-05-20 | 2019-08-23 | 北京计算机技术及应用研究所 | A kind of lightweight electronic document transmitting control system and method |
| CN110502906A (en) * | 2019-07-04 | 2019-11-26 | 北京泰立鑫科技有限公司 | A kind of method and system of data safety outgoing |
| CN111274773A (en) * | 2020-01-03 | 2020-06-12 | 沈阳通用软件有限公司 | Method for adding new attribute of document by defining document tag based on document property |
| CN111582833A (en) * | 2020-05-13 | 2020-08-25 | 中国民航信息网络股份有限公司 | Document processing method and device based on life cycle and electronic equipment |
| CN111914275A (en) * | 2020-08-05 | 2020-11-10 | 北京控制与电子技术研究所 | File leakage-proof monitoring method |
| CN111931244A (en) * | 2020-10-13 | 2020-11-13 | 北京世纪好未来教育科技有限公司 | Method and device for preventing document from divulging, electronic equipment and storage medium |
| CN112926089A (en) * | 2021-03-25 | 2021-06-08 | 支付宝(杭州)信息技术有限公司 | Data risk prevention and control method, device and equipment based on privacy protection |
| CN113742295A (en) * | 2021-09-09 | 2021-12-03 | 珠海金山办公软件有限公司 | Business data management method and device and document label management method and device |
| CN115130141A (en) * | 2022-09-01 | 2022-09-30 | 北京亿赛通科技发展有限责任公司 | Document processing method and device, mobile terminal and storage medium |
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| CN108270782A (en) * | 2018-01-15 | 2018-07-10 | 中国科学院信息工程研究所 | A kind of access control method and system based on safety label |
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| CN110502906A (en) * | 2019-07-04 | 2019-11-26 | 北京泰立鑫科技有限公司 | A kind of method and system of data safety outgoing |
| CN111274773A (en) * | 2020-01-03 | 2020-06-12 | 沈阳通用软件有限公司 | Method for adding new attribute of document by defining document tag based on document property |
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| CN111914275A (en) * | 2020-08-05 | 2020-11-10 | 北京控制与电子技术研究所 | File leakage-proof monitoring method |
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| CN111931244A (en) * | 2020-10-13 | 2020-11-13 | 北京世纪好未来教育科技有限公司 | Method and device for preventing document from divulging, electronic equipment and storage medium |
| CN112926089A (en) * | 2021-03-25 | 2021-06-08 | 支付宝(杭州)信息技术有限公司 | Data risk prevention and control method, device and equipment based on privacy protection |
| CN113742295A (en) * | 2021-09-09 | 2021-12-03 | 珠海金山办公软件有限公司 | Business data management method and device and document label management method and device |
| CN115130141A (en) * | 2022-09-01 | 2022-09-30 | 北京亿赛通科技发展有限责任公司 | Document processing method and device, mobile terminal and storage medium |
| CN115130141B (en) * | 2022-09-01 | 2022-11-22 | 北京亿赛通科技发展有限责任公司 | Document processing method and device, mobile terminal and storage medium |
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