CN107341368B - Licensing effective time method of calibration and device - Google Patents
Licensing effective time method of calibration and device Download PDFInfo
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- CN107341368B CN107341368B CN201710418600.3A CN201710418600A CN107341368B CN 107341368 B CN107341368 B CN 107341368B CN 201710418600 A CN201710418600 A CN 201710418600A CN 107341368 B CN107341368 B CN 107341368B
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000012795 verification Methods 0.000 claims abstract description 11
- 230000003247 decreasing effect Effects 0.000 claims description 9
- 239000000284 extract Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 6
- 238000012790 confirmation Methods 0.000 abstract description 5
- 230000002708 enhancing effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000013475 authorization Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
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
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
- G06F21/105—Arrangements for software license management or administration, e.g. for managing licenses at corporate level
-
- 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
Abstract
The present invention relates to a kind of licensing effective time method of calibration and devices, wherein licensing effective time method of calibration, comprising the following steps: obtain the present system time of the device of runs software and the validity period of licensing；When confirming that present system time was in the validity period of licensing, the encryption file of decryption software obtains the current residual pot life for the licensing being recorded in encryption file；When current residual pot life is greater than zero, confirmation licensing is effective.The present invention judges the accuracy of License effective time by the enhancing of regular mechanism and multiple, it can be ensured that the accurate judgement of system time verification, can solve the problem of expired License still can be continued to use when artificially being modified system time.
Description
Technical field
The present invention relates to software technology fields, more particularly to a kind of licensing effective time method of calibration and device.
Background technique
Generally for the business software of charge, user is carried out using authorization being normal by buying License (licensing)
The mode seen.In non-networked verifying, what it is to License is the important of License authorization control using validity period control
One of mode.In traditional control program, in the case where that can not carry out being networked to server end progress License verifying,
Traditional technology passes through the time for obtaining operating system, then the mode that is compared with the out-of-service time of License usually to determine
Whether the License used at this time is in the time range for allowing to use.When system time is greater than the failure of License
Between when, determine License it is expired, software no longer normal service.
During realization, inventor has found that at least there are the following problems in traditional technology: traditional technology starts in software
When verify whether current License is effectively, but when the case where encountering the change of operating system time, such as by system time
It is return back to time point earlier, whether cannot be in validity period to License is accurately determined, is caused expired
License still can be continued to use.
Summary of the invention
Based on this, it is necessary to whether be in the problem of the judgement inaccuracy of validity period to License for traditional technology, mention
For a kind of licensing effective time method of calibration and device.
To achieve the goals above, on the one hand, the embodiment of the invention provides a kind of licensing effective time method of calibration,
The following steps are included:
Obtain the present system time of the device of runs software and the validity period of licensing；
When confirming that present system time was in the validity period of licensing, the encryption file of decryption software obtains record
The current residual pot life of licensing in encryption file；Current residual pot life be according to the runing time of software,
The numerical value to be successively decreased to preset time difference；Preset time difference is the creation encryption text that software is obtained when installation license is demonstrate,proved
The difference of part time and the out-of-service time of licensing；
When current residual pot life is greater than zero, confirmation licensing is effective.
On the other hand, the embodiment of the invention also provides a kind of licensing effective time control devices, comprising:
Acquisition time unit, for obtaining the present system time of the device of runs software and the validity period of licensing；
Decryption unit, for confirm present system time be in the validity period of licensing when, the encryption of decryption software
File obtains the current residual pot life for the licensing being recorded in encryption file；Current residual pot life is according to soft
The runing time of part, the numerical value to be successively decreased to preset time difference；Preset time difference is that software is obtained when installation license is demonstrate,proved
The difference of the out-of-service time of the creation encryption document time and licensing that arrive；
Verification unit, for when current residual pot life is greater than zero, confirmation licensing to be effective.
The invention has the advantages that and the utility model has the advantages that
Licensing effective time method of calibration of the present invention and device record the current surplus of License by encryption file
Remaining pot life not only ensure that the current residual pot life of write-in encryption file can not copy transplanting, can not modify, prevent
It artificially cracks, while whether system time is being in after validity period judges, further to current residual pot life
Determined, the accuracy of License effective time is judged by the enhancing of regular mechanism and multiple, it can be ensured that system time school
The accurate judgement tested.Compared to traditional simple decision-making system time whether the technical solution in License effective range, this hair
It is bright to can solve the problem of expired License still be continued to use when artificially being modified system time.
Detailed description of the invention
Fig. 1 is the flow diagram of licensing effective time method of calibration embodiment 1 of the present invention；
Fig. 2 is the flow diagram of licensing effective time method of calibration embodiment 2 of the present invention；
Fig. 3 is the structural schematic diagram of licensing effective time control device embodiment 1 of the present invention.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to the disclosure.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Licensing effective time method of calibration and one concrete application scene of device explanation of the present invention:
In order to elaborate technical solution of the present invention, spy, which illustrates, can be adapted for application scenarios of the invention, be situated between
Continue the control software that can be authorized using needs of the invention.
1, when using the part charging function of certain a software or software, user, which needs to buy License to manufacturer, to come
Activate the use of the software or software charge function part energy；
2, the License of single purchase only can be used on fixed machine, can be and fixes certain or a few；
3, without being also that can carry out License verification under network condition；
4, the License in various embodiments of the present invention, which can refer to, saves for example that (2000-01-01 is extremely using validity period
2005-01-01), the function (can be used and take pictures, video recording can be used) that can be used, the equipment that can be used (such as record
The sequence number of the equipment of the software can be used, general user first provides the sequence number, and manufacturer produces further according to sequence number
License is to user) etc. information configuration file, while being encrypted using Encryption Algorithm, prevent from being modified.
Concrete application citing, the License: user of telecommunication apparatus buy a set of software from telecom vendors, then go purchase one
Common server, installation software can use the function of software.And telecom vendors need the platform by the server using software
The set software is sold to user by several concepts, and otherwise user can buy many servers to install same set of software, leads to telecommunications
Manufacturer collects actual software installation cost of use without normal direction user, causes damages.So every machine needs to repurchase one
License buys activation software or the partial function of software is collected different expenses by telecom vendors using the function of different stage
With.
Licensing effective time method of calibration embodiment 1 of the present invention:
Traditional software, such as some common Windows softwares, have had been subjected to validity period in licensing and can not be into
In the case that row is networked to server end progress License verifying, system time setting can be by being become validity period by user
Within time mode, continue to use expired License, cause software whether License cannot be in validity period into
Row is accurate to be determined.To solve the above-mentioned problems, the present invention provides a kind of licensing effective time method of calibration embodiments 1, Fig. 1
For the flow diagram of licensing effective time method of calibration embodiment 1 of the present invention；As shown in Figure 1, may comprise steps of:
Step S110: the present system time of the device of runs software and the validity period of licensing are obtained；
Specifically, when the present invention is in the software for being applied to verification License, it can be fixed by writing a function
Phase checks whether the License in the device current system of row software is effectively, in the licensing of software when software starts
The time of current operation system is obtained when check-verifying period arrives.Specifically, the license term in various embodiments of the present invention refers to
Be time that licensing is in effective status, such as the validity period of licensing are as follows: 2015-01-01 to 2016-01-01, relatively
, the out-of-service time of licensing are as follows: before 2015-01-01 or after 2016-01-01.
Step S120: when confirming that present system time was in the validity period of licensing, the encryption file of decryption software,
Obtain the current residual pot life for the licensing being recorded in encryption file；Current residual pot life is the fortune according to software
Row time, the numerical value to be successively decreased to preset time difference；Preset time difference is the wound that software is obtained when installation license is demonstrate,proved
Build the difference of the out-of-service time of encryption document time and licensing；
Specifically, the current residual pot life of licensing can refer to the runing time according to software, to preset time
The numerical value that difference is successively decreased；And preset time difference can refer to the difference of current time Yu License out-of-service time, such as
Saving this software inside License can be used on December 31st, 2016 (i.e. the out-of-service time of License), then can
Currently also surplus how many days to obtain the current residual pot life of licensing on December 31st, 2016 by calculating.And pass through
Encryption file come save currently to license failure there remains how many days, when the external world cracks, though know the encryption text
Part is to save residue using the time, can not be extended by modifying this file using the time, license through the invention
Card effective time method of calibration can effectively prevent cracking.
Preferably, gradually the current residual pot life saved in softdog can be passed during software is run
Reducing (successively decreases to preset time difference according to the runing time of software), illustrates that this is that License loses when reducing to 0
It imitates.Even if machine shutdown while powering off (i.e. operating system), when which can not continue, each embodiment through the invention
In the cooperation detection system time (such as above-mentioned steps S110 and step S120), still can be the use of License effectively
Phase is limited in the range of should having, and reduces the deviation of appearance.
Step S130: when current residual pot life is greater than zero, confirmation licensing is effective.
Specifically, various embodiments of the present invention during verifying License effective time, first determine whether to work as
Whether the time of preceding operating system was in License validity period, if passing through, continue to judge to record in software cryptography file when
Between (i.e. the numerical value of the current residual pot life of licensing) value whether be greater than 0, the accuracy of verification can be improved with this.
In a specific embodiment, step S110 obtains the present system time and licensing of the device of runs software
Validity period the step of before may include step:
In software installation licensing, creation encryption file；
Creation encryption document time and out-of-service time are obtained, and according to creation encryption document time and out-of-service time, is obtained
Current residual pot life.
In a specific embodiment, in software installation licensing, creating the step of encrypting file may include:
Obtain the hardware sequence number of the device of installation software；
According to Encryption Algorithm, current residual pot life is encrypted by hardware sequence number, generates encryption file.
Specifically, the present invention can realize the function of above-mentioned encryption file by secret dog or encryption lock, it is preferred that raw
Manufacturer extracts such as CPU sequence number on this hardware or hard disk serial number or their combination when generating softdog.
Then it allows and this string character is applied in Encryption Algorithm.It is gone to extract this string sequence number with same method when decryption, then
It goes to decrypt by this string sequence number, can match can successful decryption.And if if decryption softdog is unsuccessful, it is believed that mismatch
Hardware was artificially modified, and at this time assert that License is invalid, software function is unable to normal use.
In a specific embodiment, the encryption file of decryption software obtains the licensing being recorded in encryption file
Current residual pot life the step of may include:
Extract the hardware sequence number of the device of runs software；
When encrypting file by hardware sequence number successful decryption, current residual pot life is obtained.
Specifically, License itself can pre-set the specific hardware of pairing in various embodiments of the present invention.Add
Ciphertext part (such as softdog) can equally be arranged and Hardware match, when software is cracked, even if cracker knows the encryption
The use time correlation of dog and License, but the presence of the hardware sequence number due to pairing, a License is also 1 year surplus
When being copied to using the softdog of time on the machine in another License also surplus 1 week, it can not also extend this and only remain 1
The machine in a week uses time (can not decrypt).
Preferably, in a specific example, when decrypting encryption file failure by hardware sequence number, it is possible to determine that permitted
It is invalid to demonstrate,prove.
Specifically, if the hardware sequence number for passing through the device of runs software is decrypted when encrypting file failure, it can be true
Recognize the device and the software mismatches, is not belonging to the device of License license, License cannot be used；Therefore on this device
It can be determined that licensing is invalid.
In a specific embodiment, hardware sequence number includes any one in following sequence number or any combination:
CPU sequence number, hard disk serial number.
Specifically, hardware sequence number should be the unique number with the system hardware of Software match, equipment, can prevent
It cracks, to guarantee the accuracy of License verification.
Licensing effective time method of calibration embodiment 1 of the present invention records the current surplus of License by encryption file
Remaining pot life not only ensure that the current residual pot life of write-in encryption file can not copy transplanting, can not modify, prevent
It artificially cracks, while whether system time is being in after validity period judges, further to current residual pot life
Determined, the accuracy of License effective time is judged by the enhancing of regular mechanism and multiple, it can be ensured that system time school
The accurate judgement tested.Compared to traditional simple decision-making system time whether the technical solution in License effective range, this hair
It is bright to can solve the problem of expired License still be continued to use when artificially being modified system time.
Licensing effective time method of calibration embodiment 2 of the present invention:
Based on the technical solution of the above licensing effective time method of calibration embodiment 1, while in order to solve traditional technology
The problem of the judgement inaccuracy of validity period whether is in License, the present invention also provides a kind of schools of licensing effective time
Embodiment of the method 2 is tested, Fig. 2 is the flow diagram of licensing effective time method of calibration embodiment 2 of the present invention, as shown in Fig. 2,
It may comprise steps of:
In software installation License, a softdog is created, saves the value of current time to License out-of-service time,
The value is gradually successively decreased with the time, which matches with hardware, prevents from being copied into other machines use.
Partial information is protected by way of encryption specifically, the softdog mentioned in various embodiments of the present invention can refer to
It stores away, avoids being modified, software mode can be used, be also possible to hardware mode.Preferably, the present invention uses software side
Formula does not need additional hardware.
User in actual use, generally after the software has been installed, then opens software and installs according to explanation and bought
License.Certain information can be stored in some file by software during installing License with Encryption Algorithm,
Such as saved with softdog or encryption lock currently to license failure there remains how many days, when encountering software and being cracked, i.e.,
Make to know that the encryption file is to save remaining using the time, can not be extended by modifying this file using the time, because
It is to be encrypted as ciphertext (a string of character strings failed to understand) by Encryption Algorithm for softdog, can not be decrypted after being modified.And this
Softdog and hardware information are bound in invention, encrypt user from will save the License containing longer pot life
Dog copies use (and general user can not know the presence of softdog, unless cracking intentionally) on other machines to.
Further, software periodically verifies License effective time, first determines whether present system time is located
In in License validity period, if passing through, effective time for continuing to judge to record in softdog (i.e. current residual pot life
Value) whether it is greater than 0, the accuracy of verification is improved with this.
The present invention by introduce can not copy transplanting, not revisable softdog come record the current residual of License can
With the time, while the verification to system time is kept, License effective time is reached by regularly Multiple detection mechanism
Accurate judgement.Whether relative to the traditional scheme simple decision-making system time in License effective range, the program can be to avoid
By artificial modification time, leading to expired License still can be continued to use.
And for the remaining time for only using softdog record License, there can be the time surplus of shutdown period not
The problem of successively decreasing, and artificial is first the time earlier by system time setting, then installs License again, causes to encrypt
The time surplus that dog initially keeps becomes larger, the elongated problem of pot life, and the present invention passes through comprehensive multiple verification, Ke Yigeng
Reasonably solve the problem as above.
Licensing effective time method of calibration embodiment 2 of the present invention records the current surplus of License by encryption file
Remaining pot life not only ensure that the current residual pot life of write-in encryption file can not copy transplanting, can not modify, prevent
It artificially cracks, while whether system time is being in after validity period judges, further to current residual pot life
Determined, the accuracy of License effective time is judged by the enhancing of regular mechanism and multiple, it can be ensured that system time school
The accurate judgement tested.Compared to traditional simple decision-making system time whether the technical solution in License effective range, this hair
It is bright to can solve the problem of expired License still be continued to use when artificially being modified system time.
Licensing effective time control device embodiment 1 of the present invention:
Based on the technical solution of above each embodiment of licensing effective time method of calibration, while in order to solve traditional technology
The problem of the judgement inaccuracy of validity period whether is in License, the present invention also provides a kind of controls of licensing effective time
Installation practice 1 processed, Fig. 3 are the structural schematic diagram of licensing effective time control device embodiment 1 of the present invention, as shown in figure 3,
May include:
Acquisition time unit 310, for obtaining the present system time of the device of runs software and the validity period of licensing；
Decryption unit 320, for when confirming that present system time was in the validity period of licensing, decryption software to add
Ciphertext part obtains the current residual pot life for the licensing being recorded in encryption file；According to current residual pot life
The runing time of software, the numerical value to be successively decreased to preset time difference；Preset time difference is software when installation license is demonstrate,proved
The difference of the out-of-service time of obtained creation encryption document time and licensing；
Verification unit 330, for when current residual pot life is greater than zero, confirmation licensing to be effective.
In a specific embodiment, licensing effective time control device embodiment 1 of the present invention can also include:
Encryption unit 340, in software installation licensing, creation to encrypt file；
Current residual pot life unit 350 is obtained, creates encryption document time and out-of-service time for obtaining, and according to
Creation encryption document time and out-of-service time, obtain current residual pot life.
In a specific embodiment, decryption unit 320 may include:
Matching module 322, the hardware sequence number of the device for extracting runs software；
Deciphering module 324 is used for when encrypting file by hardware sequence number successful decryption, when obtaining current residual can be used
Between.
In a specific embodiment, deciphering module 324, for decrypting encryption file failure by hardware sequence number
When, determine that licensing is invalid.
It should be noted that each unit module in licensing effective time control device embodiment 1 of the present invention, it can be right
It should realize the functional steps of above-mentioned each embodiment of licensing effective time method of calibration, details are not described herein again.
Licensing effective time control device embodiment 1 of the present invention records the current surplus of License by encryption file
Remaining pot life not only ensure that the current residual pot life of write-in encryption file can not copy transplanting, can not modify, prevent
It artificially cracks, while whether system time is being in after validity period judges, further to current residual pot life
Determined, the accuracy of License effective time is judged by the enhancing of regular mechanism and multiple, it can be ensured that system time school
The accurate judgement tested.Compared to traditional simple decision-making system time whether the technical solution in License effective range, this hair
It is bright to can solve the problem of expired License still be continued to use when artificially being modified system time.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.Those of ordinary skill in the art will appreciate that realizing above-mentioned implementation
All or part of the steps in example method is relevant hardware can be instructed to complete by program, and the program can deposit
It is stored in a computer-readable storage medium, which when being executed, includes the steps that described in above method, the storage
Medium, such as: ROM/RAM, magnetic disk, CD.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of licensing effective time method of calibration, which comprises the following steps:
Obtain the present system time of the device of runs software and the validity period of licensing；The validity period of the licensing is described
Licensing is in the time of effective status；
When confirming that the present system time was in the validity period of the licensing, the encryption file of the software is decrypted,
Obtain the current residual pot life for the licensing being recorded in the encryption file；The current residual pot life is
According to the runing time of the software, the numerical value to be successively decreased to preset time difference；The preset time difference is described soft
The difference of the out-of-service time of creation encryption document time and the licensing that part is obtained when installing the licensing；
When the current residual pot life is greater than zero, confirm that the licensing is effective.
2. licensing effective time method of calibration according to claim 1, which is characterized in that verified in the licensing of software
When period arrives, before the step of obtaining the validity period of present system time and the licensing comprising steps of
When the licensing described in the software installation, the encryption file is created；
The creation encryption document time and the out-of-service time are obtained, and document time and the mistake are encrypted according to the creation
The time is imitated, the current residual pot life is obtained.
3. licensing effective time method of calibration according to claim 2, which is characterized in that described in the software installation
When licensing, create the encryption file the step of include:
Obtain the hardware sequence number for installing the device of the software；
According to Encryption Algorithm, the current residual pot life is encrypted by the hardware sequence number, generates the encryption file.
4. licensing effective time method of calibration according to claim 1, which is characterized in that decrypt the encryption of the software
File, obtaining the step of being recorded in the current residual pot life for encrypting the licensing in file includes:
Extract the hardware sequence number of the described device of runs software；
When through encryption file described in the hardware sequence number successful decryption, the current residual pot life is obtained.
5. licensing effective time method of calibration according to claim 4, which is characterized in that passing through the hardware sequence
Number decrypt the encryption file fail when, determine that the licensing is invalid.
6. according to claim 1 to licensing effective time method of calibration described in 5 any one, the hardware sequence number includes
Any one in following sequence number or any combination: CPU sequence number, hard disk serial number.
7. a kind of licensing effective time control device characterized by comprising
Acquisition time unit, for obtaining the present system time of the device of runs software and the validity period of licensing；It is described to be permitted
The validity period that can be demonstrate,proved is the time that the licensing is in effective status；
Decryption unit, for decrypting described soft when confirming that the present system time was in the validity period of the licensing
The encryption file of part obtains the current residual pot life for the licensing being recorded in the encryption file；It is described current
Remaining pot life is according to the runing time of the software, the numerical value to be successively decreased to preset time difference；It is described default
When time difference is the failure of creation encryption document time and the licensing that the software is obtained when installing the licensing
Between difference；
Verification unit, for confirming that the licensing is effective when the current residual pot life is greater than zero.
8. licensing effective time control device according to claim 7, which is characterized in that further include:
Encryption unit creates the encryption file when being used for the licensing described in the software installation；
Current residual pot life unit is obtained, for obtaining the creation encryption document time and the out-of-service time, and root
Document time and the out-of-service time are encrypted according to the creation, obtains the current residual pot life.
9. licensing effective time control device according to claim 7 or 8, which is characterized in that the decryption unit packet
It includes:
Matching module, the hardware sequence number of the device for extracting the runs software；
Deciphering module, for obtaining the current residual when through encryption file described in the hardware sequence number successful decryption
Pot life.
10. licensing effective time control device according to claim 9, which is characterized in that the deciphering module is used for
When decrypting encryption file failure by the hardware sequence number, determine that the licensing is invalid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710418600.3A CN107341368B (en) | 2017-06-06 | 2017-06-06 | Licensing effective time method of calibration and device |
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| CN201710418600.3A CN107341368B (en) | 2017-06-06 | 2017-06-06 | Licensing effective time method of calibration and device |
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| CN110704814B (en) * | 2018-07-09 | 2022-02-01 | 中移物联网有限公司 | Anti-copy method and device, and storage medium |
| CN109165483A (en) * | 2018-08-15 | 2019-01-08 | 国云科技股份有限公司 | A method of it prevents around cloud platform licensing term |
| CN109962815B (en) * | 2019-04-04 | 2021-08-13 | 北京奇艺世纪科技有限公司 | Configuration publishing method, device, server and client device |
| CN112187704B (en) * | 2019-07-02 | 2023-04-07 | 天翼云科技有限公司 | Method, system and network equipment for checking valid time of license |
| CN111143788B (en) * | 2019-12-31 | 2022-04-29 | 奇安信科技集团股份有限公司 | License processing method, electronic device, and storage medium |
| CN111523093A (en) * | 2020-03-20 | 2020-08-11 | 北京元心科技有限公司 | Software license validity checking method and system and corresponding computer equipment |
| CN111581607B (en) * | 2020-05-08 | 2023-08-22 | 深圳市凯迈生物识别技术有限公司 | License activating method |
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