CN105337729B - A kind of encryption method of mobile terminal, device and mobile terminal - Google Patents
A kind of encryption method of mobile terminal, device and mobile terminal Download PDFInfo
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- CN105337729B CN105337729B CN201510800017.XA CN201510800017A CN105337729B CN 105337729 B CN105337729 B CN 105337729B CN 201510800017 A CN201510800017 A CN 201510800017A CN 105337729 B CN105337729 B CN 105337729B
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Abstract
The embodiment of the present invention provides encryption method, device and the mobile terminal of a kind of mobile terminal, method therein can include: when receiving the CIPHERING REQUEST for mobile terminal, preset encryption rule is obtained, the preset encryption rule includes static password, preset dynamic algorithm and cipher key combinations mode；Dynamic password is calculated using the preset dynamic algorithm；The static password and the dynamic password are combined according to the cipher key combinations mode, generate encryption key；The mobile terminal is encrypted using the encryption key.The present invention is able to ascend the difficulty that cracks of encryption key, guarantees encryption reliability, promotes the safety of encryption data in mobile terminal.
Description
Technical field
The present invention relates to technical field of mobile terminals, and in particular to the encryption and decryption processing technology field of mobile terminal, especially
A kind of its encryption method for being related to mobile terminal, device and mobile terminal.
Background technique
With improved day by day, mobile terminal institute's role day in people's daily life work of mobile terminal function
Become important, at the same time, the privacy concern of the safety of mobile terminal and user more and more attention has been paid to.Currently, most of
Mobile terminal all supports encryption function, the encryption function including supporting the screen for mobile terminal, such as current password screen locking
Function；Support the encryption function for the file in mobile terminal, such as current atlas, photograph album encryption function；Etc..However,
Crypted password in the prior art is usually a string of stationary digitals being set by the user, using the Crypted password of such static mode
It cracks that difficulty is lower, and is easy to lose the original idea of encryption because of password leakage, the peace of encryption data in reduction mobile terminal
Quan Xing.
Summary of the invention
The embodiment of the present invention provides encryption method, device and the mobile terminal of a kind of mobile terminal, and it is close to be able to ascend encryption
Key cracks difficulty, guarantees encryption reliability, promotes the safety of encryption data in mobile terminal.
First aspect of the embodiment of the present invention provides a kind of encryption method of mobile terminal, it may include:
When receiving the CIPHERING REQUEST for mobile terminal, preset encryption rule, the preset encryption rule are obtained
It then include static password, preset dynamic algorithm and cipher key combinations mode；
Dynamic password is calculated using the preset dynamic algorithm；
The static password and the dynamic password are combined according to the cipher key combinations mode, it is close to generate encryption
Key；
The mobile terminal is encrypted using the encryption key.
Preferably, the preset dynamic algorithm is nonrandom algorithm, and the preset dynamic algorithm includes dynamic parameter
And calculation formula；The dynamic parameter includes: current date indicated by the system of the mobile terminal or the mobile terminal
System indicated by current time.
It is preferably, described that dynamic password is calculated using the preset dynamic algorithm, comprising:
The dynamic parameter is read from the system of the mobile terminal；
The dynamic parameter of reading is substituted into calculate in the calculation formula and obtains dynamic password.
Preferably, the cipher key combinations mode is quiet dynamic password combination mode；It is described to be incited somebody to action according to the cipher key combinations mode
The static password and the dynamic password are combined, and generate encryption key, specifically: according to quiet dynamic password combination mode,
It is sequentially filled the character that the dynamic password is included after the last character that the static password is included, it is close to generate encryption
Key.
Preferably, the cipher key combinations mode is sound password combination mode；It is described to be incited somebody to action according to the cipher key combinations mode
The static password and the dynamic password are combined, and generate encryption key, specifically: according to sound password combination mode,
It is sequentially filled the character that the static password is included after the last character that the dynamic password is included, it is close to generate encryption
Key.
Preferably, after the mobile terminal is encrypted in the use encryption key, further includes:
When receiving the decoding request for mobile terminal, compare decruption key that the decoding request carries with it is described
Encryption key；
If comparing unanimously, the mobile terminal is decrypted using the encryption key.
Second aspect of the embodiment of the present invention provides a kind of encryption device of mobile terminal, it may include:
Rule unit, for obtaining preset encryption rule when receiving the CIPHERING REQUEST for mobile terminal,
The preset encryption rule includes static password, preset dynamic algorithm and cipher key combinations mode；
Computing unit, for calculating dynamic password using the preset dynamic algorithm；
Cipher key combinations unit, for carrying out the static password and the dynamic password according to the cipher key combinations mode
Combination generates encryption key；
Cryptographic processing unit, for the mobile terminal to be encrypted using the encryption key.
Preferably, the preset dynamic algorithm is nonrandom algorithm, and the preset dynamic algorithm includes dynamic parameter
And calculation formula；The dynamic parameter includes: current date indicated by the system of the mobile terminal or the mobile terminal
System indicated by current time.
Preferably, the computing unit includes:
Parameter reading unit, for reading the dynamic parameter from the system of the mobile terminal；
Dynamic password computing unit, the dynamic parameter for that will read, which substitutes into the calculation formula to calculate, to be moved
State password.
Preferably, the cipher key combinations mode is quiet dynamic password combination mode；The cipher key combinations unit is specifically used for: pressing
According to quiet dynamic password combination mode, the dynamic password is sequentially filled after the last character that the static password is included is included
Character, generate encryption key.
Preferably, the cipher key combinations mode is sound password combination mode；The cipher key combinations unit is specifically used for: pressing
According to sound password combination mode, the static password is sequentially filled after the last character that the dynamic password is included is included
Character, generate encryption key.
Preferably, the device further include:
Comparing unit, for when receiving the decoding request for mobile terminal, comparing what the decoding request carried
Decruption key and the encryption key；
If place is decrypted to the mobile terminal using the encryption key consistent for comparing in decryption processing unit
Reason.
The third aspect of the embodiment of the present invention provides a kind of mobile terminal, it may include mobile terminal described in above-mentioned second aspect
Encryption device.
The implementation of the embodiments of the present invention has the following beneficial effects:
In embodiments of the present invention, dynamic can be calculated according to preset encryption rule for the CIPHERING REQUEST of mobile terminal
Password, and encryption key is generated in such a way that static password and dynamic password are combined, using the encryption key to institute
Mobile terminal is stated to be encrypted；Since the dynamic of encryption key entirety cracks so that the complexity of encryption key is higher
Difficulty is bigger, so as to guarantee the encryption reliability of mobile terminal, promotes the safety of encryption data in mobile terminal.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of flow chart of the encryption method of mobile terminal provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of internal structure of mobile terminal provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of the encryption device of mobile terminal provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In embodiments of the present invention, dynamic can be calculated according to preset encryption rule for the CIPHERING REQUEST of mobile terminal
Password, and encryption key is generated in such a way that static password and dynamic password are combined, using the encryption key to institute
Mobile terminal is stated to be encrypted.Since the dynamic of encryption key entirety cracks so that the complexity of encryption key is higher
Difficulty is bigger, so as to guarantee the encryption reliability of mobile terminal, promotes the safety of encryption data in mobile terminal.
Wherein, mobile terminal may include but be not limited to: PDA (tablet computer), smart phone, intelligent wearable device etc.
Deng.The encryption that encryption for mobile terminal can be carried out with screen of the pointer to mobile terminal, that is, common coded lock
Shield function, only can just check content shown by screen after receiving correct unlocking screen password at this time.Alternatively, needle
To the encryption that the encryption of mobile terminal can carry out the file in mobile terminal with pointer, including common file encryption function
Energy, atlas encryption function etc., can just check the document or atlas packet only after receiving correct decruption key at this time
The content contained.For ease of description, the encryption of subsequent screen or file for mobile terminal is referred to as mobile whole herein
The encryption at end.
Based on the above principles, the embodiment of the invention provides a kind of encryption method of mobile terminal, this method is applied to move
In dynamic terminal.Referring to Figure 1, following steps can be performed in this method:
S101 obtains preset encryption rule when receiving the CIPHERING REQUEST for mobile terminal, and described preset adds
Close rule includes static password, preset dynamic algorithm and cipher key combinations mode.
Wherein, preset encryption rule is to be preset by user and be stored in mobile terminal, can be from movement eventually
The preset encryption rule is obtained in the memory space at end.Static password is the character string of a fixed digit, be common are: such as
123,956 three equal digit word strings, four English words letter strings of such as abcd, qphj etc., such as 12a, 25c etc. are total to by number and letter
With three character strings, etc. of composition.The effect of preset dynamic algorithm is to calculate dynamic password, in order to facilitate mobile terminal
Legitimate user (such as owner) memory and flexibly use, the preset dynamic algorithm is preferably nonrandom algorithm in the present embodiment,
That is calculated result is non-random numbers.Cipher key combinations mode be used to indicate static password and calculate obtain dynamic password it
Between the process that be combined with each other.
S102 calculates dynamic password using the preset dynamic algorithm.
The preset dynamic algorithm includes dynamic parameter and calculation formula, dynamic parameter herein can include: the shifting
Current time indicated by the system of current date indicated by the system of dynamic terminal or the mobile terminal.It is described based on this,
In the present embodiment in the specific implementation, step S102 specifically executes following steps in the process of running:
S11 reads the dynamic parameter from the system of the mobile terminal.
The dynamic parameter of reading is substituted into the calculation formula and calculates acquisition dynamic password by s12.
For reading current date in the system from mobile terminal, it is assumed that current date 20151103 calculates public
Formula is indicated using following formula (1):
P=(x1+x2+xi+...+xn)2 (1)
In above-mentioned formula, p indicates to calculate the dynamic password obtained；Length of the n for positive integer and for indicating current date,
I.e. for indicating the character quantity of current date；x1Indicate the value of the first character of current date, x2Indicate the of current date
The value of one character, xiIndicate the value of the i (1≤i≤n, i are positive integer) character of current date, xnIndicate current date
The value of the last character.
So, current date is substituting in above-mentioned formula (1), it is (2+0+1+5+1+1+0 that dynamic password, which can be calculated,
+3)2=169 to get to the dynamic password of three bit digitals.It is only for example herein, if current date changes or reads to work as
The preceding time, alternatively, such as directly being asked the value of each character of parameter current if the calculation formula of user setting is other formula
The formula of sum, as required nothing more than the value summation to the character of the specific position of parameter current in above-mentioned (1) again square, etc., these
In the case of can refer to example carry out similar analysis.
It should be noted that the effect of dynamic parameter is to guarantee that dynamic password has dynamic, certainly, dynamic parameter is also
For determining the dynamic change frequency of dynamic password, such as: if current date is indicated using days, then dynamic password is monthly sent out
Raw more new change；If current date is indicated using the date, then more new change per diem occurs for dynamic password；If current time is smart
Really to minute, then dynamic password is by the raw more new change of distribution；If current time is accurate to the second, then dynamic password presses the second
More new change.The effect of calculation formula, which is to calculate, obtains dynamic password, and certainly, calculation formula is also used to determine dynamic password
Digit calculates the dynamic password for obtaining three bit digitals in example as above, if above-mentioned formula (1) changes into current using formula (1)
The formula that the value of each character of parameter is directly summed, then dynamic password is that 2+0+1+5+1+1+0+3=13 then obtains two
Several dynamic passwords.
The static password and the dynamic password are combined by S103 according to the cipher key combinations mode, are generated and are added
Key.
In embodiments of the present invention, the cipher key combinations mode can be divided into quiet dynamic password combination mode or sound password
Combination, the two embody the static password cohesive process different from dynamic password.It is specific as follows: (1) if quiet dynamic password
Combination, then, this step can be sequentially filled the dynamic password after the last character that the static password is included
The character for being included generates encryption key；With an example explanation, it is assumed that static password 123, dynamic password 169, filling
The encryption key generated afterwards is the 123169 of six digits.(2) if sound password combination mode, then, this step can be described
It is sequentially filled the character that the static password is included after the last character that dynamic password is included, generates encryption key；More than
Example is stated, the encryption key generated after filling is the 169123 of six digits.
It is understood that the encryption key in the present embodiment using static password in such a way that dynamic password combines,
For pure static password, the complexity of key is higher, and to crack difficulty bigger；Simultaneously for pure dynamic password,
Due to being only partial dynamic, remembering for legitimate user requires relatively low and utilization more flexible.
S104 is encrypted the mobile terminal using the encryption key.
Herein, mobile terminal is encrypted, actually concealed encrypted data are only receiving correct solution
After key, encryption data is just shown, to guarantee the safety of the data in mobile terminal.So, step is being executed
After S104, also following steps can be specifically executed:
S21, when receiving the decoding request for mobile terminal, compare decruption key that the decoding request carries with
The encryption key.
S22 is decrypted the mobile terminal using the encryption key if comparing unanimously.Herein to movement
Terminal is decrypted, and actually shows the data of encryption, uses the data that can view encryption.It can manage
Solution ignores the decoding request, or output decryption failure prompt information if comparison is inconsistent.
As above as it can be seen that being directed to the CIPHERING REQUEST of mobile terminal, the encryption method of the mobile terminal in the present embodiment can be by
Calculate dynamic password according to preset encryption rule, and generate using static password and dynamic password are combined in such a way that encrypt it is close
Key is encrypted the mobile terminal using the encryption key.Due to the dynamic of encryption key entirety, so that plus
The complexity of key is higher, cracks that difficulty is bigger, so as to guarantee the encryption reliability of mobile terminal, promotes mobile terminal
The safety of interior encryption data.
The encryption method of mobile terminal shown in based on the above embodiment, the embodiment of the invention also provides a kind of mobile whole
End, the mobile terminal can be used for executing each step of above method process.Fig. 2 is referred to, the internal structure of the mobile terminal
It may include but be not limited to: processor, user interface, network interface and memory.Wherein, the processor in mobile terminal, user
Interface, network interface and memory can be connected by bus or other modes, by total in Fig. 2 shown in the embodiment of the present invention
For line connection.
Wherein, user interface is the medium realizing user and mobile terminal and interacting with information exchange, is embodied
It may include the display screen (Display) for output and keyboard (Keyboard) for input etc., need to illustrate
It is that keyboard herein both can be physical keyboard, or touch screen dummy keyboard can also be entity and touch screen virtualphase knot
The keyboard of conjunction.Processor (or CPU (Central Processing Unit, central processing unit)) is the calculating of mobile terminal
Core and control core can parse all kinds of instructions in mobile terminal and handle the Various types of data of mobile terminal, example
As: CPU can be used for parsing user and instruct to switching on and shutting down transmitted by mobile terminal, and controls mobile terminal and carry out switching on and shutting down behaviour
Make；For another example: CPU can transmit all kinds of interaction datas, etc. between mobile terminal internal structure.Memory (Memory) is to move
Memory device in dynamic terminal, for storing program and data.It is understood that memory herein both may include movement
The internal memory of terminal, naturally it is also possible to the extended menory supported including mobile terminal.Memory provides memory space,
The memory space stores the operating system of mobile terminal, it may include but be not limited to: Windows system (a kind of operating system),
A kind of Android (Android, Mobile operating system) system, a kind of IOS (Mobile operating system) system etc., the present invention to this simultaneously
It is not construed as limiting.The memory space of memory stores the encryption device of mobile terminal.The device can be one in mobile terminal
A application program, such as: the device can be security application in mobile terminal etc..
In embodiments of the present invention, mobile terminal is executed above-mentioned shown in FIG. 1 by the device in run memory
Method.Please also refer to Fig. 3, during being encrypted to mobile terminal, the device operation such as lower unit:
Rule unit 101, for when receiving the CIPHERING REQUEST for mobile terminal, obtaining preset encryption rule
Then, the preset encryption rule includes static password, preset dynamic algorithm and cipher key combinations mode.
Computing unit 102, for calculating dynamic password using the preset dynamic algorithm.
Cipher key combinations unit 103, for according to the cipher key combinations mode by the static password and the dynamic password
It is combined, generates encryption key.
Cryptographic processing unit 104, for the mobile terminal to be encrypted using the encryption key.
Optionally, which also runs such as lower unit:
Comparing unit 105 is carried for when receiving the decoding request for mobile terminal, comparing the decoding request
Decruption key and the encryption key；
If decryption processing unit 106 is decrypted the mobile terminal using the encryption key consistent for comparing
Processing.
In embodiments of the present invention, the preset dynamic algorithm is nonrandom algorithm, the preset dynamic algorithm packet
Include dynamic parameter and calculation formula；The dynamic parameter includes: current date indicated by the system of the mobile terminal or institute
State current time indicated by the system of mobile terminal.It is described based on this, 102 carrying out practically of the computing unit such as lower unit:
Parameter reading unit 1001, for reading the dynamic parameter from the system of the mobile terminal.
Dynamic password computing unit 1002 is obtained for substituting into the calculation formula to calculate the dynamic parameter read
Obtain dynamic password.
Similarly with method shown in FIG. 1, for the CIPHERING REQUEST of mobile terminal, the mobile terminal of the present embodiment and movement are eventually
The encryption device at end can calculate dynamic password according to preset encryption rule, and use static password and dynamic password phase group
The mode of conjunction generates encryption key, and the mobile terminal is encrypted using the encryption key.Due to encryption key
Whole dynamic cracks that difficulty is bigger so that the complexity of encryption key is higher, so as to guarantee the encryption of mobile terminal
Reliability promotes the safety of encryption data in mobile terminal.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (10)
1. a kind of encryption method of mobile terminal characterized by comprising
When receiving the CIPHERING REQUEST for mobile terminal, preset encryption rule, the preset encryption rule packet are obtained
Static password, preset dynamic algorithm and cipher key combinations mode are included, the preset dynamic algorithm includes dynamic parameter and meter
Calculate formula, wherein the dynamic parameter is used to determine that the dynamic change frequency of dynamic password, the calculation formula to be dynamic for determining
The digit of state password, the static password are the character string of a fixed digit；
Dynamic password is calculated using the preset dynamic algorithm, wherein the dynamic password is to substitute into the dynamic parameter
It is calculated into the calculation formula, dynamic parameter, which is updated to the dynamic password obtained after the calculation formula calculates, is
In current date the sum of value of each character square or the value summation of the character of the specific position of parameter current is put down again
Side；
The static password and the dynamic password are combined according to the cipher key combinations mode, generate encryption key；
The mobile terminal is encrypted using the encryption key, hides the encryption data in the mobile terminal；
When receiving the decoding request for mobile terminal, the decruption key and the encryption that the decoding request carries are compared
Key；
If comparing unanimously, the mobile terminal is decrypted using the encryption key, it will be in the mobile terminal
Encryption data is shown；
Wherein, the dynamic parameter includes current date indicated by the system of mobile terminal, if current date uses year menology
Show, then the dynamic password being calculated is that more new change monthly occurs, alternatively, moving if current date is indicated using the date
More new change per diem occurs for state password.
2. the method as described in claim 1, which is characterized in that the preset dynamic algorithm is nonrandom algorithm；It is described dynamic
State parameter includes: current time indicated by the system of the mobile terminal.
3. method according to claim 1 or 2, which is characterized in that the cipher key combinations mode is quiet dynamic password combination mode；
It is described to be combined the static password and the dynamic password according to the cipher key combinations mode, it is close to generate encryption
Key, specifically: according to quiet dynamic password combination mode, it is sequentially filled after the last character that the static password is included described dynamic
The character that state password is included generates encryption key.
4. method according to claim 1 or 2, which is characterized in that the cipher key combinations mode is sound password combination mode；
It is described to be combined the static password and the dynamic password according to the cipher key combinations mode, it is close to generate encryption
Key, specifically: according to sound password combination mode, it is sequentially filled after the last character that the dynamic password is included described quiet
The character that state password is included generates encryption key.
5. a kind of encryption device of mobile terminal characterized by comprising
Rule unit, it is described for obtaining preset encryption rule when receiving the CIPHERING REQUEST for mobile terminal
Preset encryption rule includes static password, preset dynamic algorithm and cipher key combinations mode, the preset dynamic algorithm
Including dynamic parameter and calculation formula, wherein the dynamic parameter is used to determine the dynamic change frequency of dynamic password, the meter
The digit that formula is used to determine dynamic password is calculated, the static password is the character string of a fixed digit；
Computing unit, for calculating dynamic password using the preset dynamic algorithm, wherein the dynamic password is will be described
Dynamic parameter, which is updated to, to be calculated in the calculation formula, and dynamic parameter is updated to after the calculation formula calculates and is obtained
Dynamic password be in current date the sum of value of each character square or the specific position to parameter current character
Value summation is again square；
Cipher key combinations unit, for the static password and the dynamic password to be carried out group according to the cipher key combinations mode
It closes, generates encryption key；
Cryptographic processing unit hides the movement for the mobile terminal to be encrypted using the encryption key
Encryption data in terminal；
Comparing unit, for when receiving the decoding request for mobile terminal, comparing the decryption that the decoding request carries
Key and the encryption key；
If decryption processing unit is decrypted the mobile terminal using the encryption key consistent for comparing, will
Encryption data in the mobile terminal is shown；
Wherein, the dynamic parameter includes current date indicated by the system of mobile terminal, if current date uses year menology
Show, then the dynamic password being calculated is that more new change monthly occurs, alternatively, moving if current date is indicated using the date
More new change per diem occurs for state password.
6. device as claimed in claim 5, which is characterized in that the preset dynamic algorithm is nonrandom algorithm；It is described dynamic
State parameter includes: current time indicated by the system of the mobile terminal.
7. device as claimed in claim 6, which is characterized in that the computing unit includes:
Parameter reading unit, for reading the dynamic parameter from the system of the mobile terminal；
Dynamic password computing unit, it is close that the dynamic parameter for that will read substitutes into calculating acquisition dynamic in the calculation formula
Code.
8. such as the described in any item devices of claim 5-7, which is characterized in that the cipher key combinations mode is quiet dynamic password combination
Mode；
The cipher key combinations unit is specifically used for: according to quiet dynamic password combination mode, in the last word that the static password is included
It is sequentially filled the character that the dynamic password is included after symbol, generates encryption key.
9. such as the described in any item devices of claim 5-7, which is characterized in that the cipher key combinations mode is sound password combination
Mode；
The cipher key combinations unit is specifically used for: according to sound password combination mode, in the last word that the dynamic password is included
It is sequentially filled the character that the static password is included after symbol, generates encryption key.
10. a kind of mobile terminal, which is characterized in that the encryption dress including such as described in any item mobile terminals of claim 5-9
It sets.
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| CN105871546A (en) * | 2016-05-24 | 2016-08-17 | 张雪莱 | Verification method combining static password and dynamic password and terminal equipment |
| CN106161008B (en) * | 2016-06-14 | 2019-05-07 | 青岛海信移动通信技术股份有限公司 | A kind of terminal encryption method, terminal encryption device and terminal |
| CN106330453A (en) * | 2016-08-16 | 2017-01-11 | 硕诺科技（深圳）有限公司 | Mobile phone dynamic password encryption and decryption device and method |
| CN106506145A (en) * | 2016-11-01 | 2017-03-15 | 苏州协鑫集成科技工业应用研究院有限公司 | Key system and its encipher-decipher method |
| CN107493393A (en) * | 2017-09-25 | 2017-12-19 | 深圳辉烨通讯技术有限公司 | A kind of short message encryption method, device and mobile terminal |
| CN109995712B (en) * | 2017-12-29 | 2021-10-01 | 中国移动通信集团湖北有限公司 | Data encryption and decryption method, device, equipment and medium |
| CN109462475B (en) * | 2018-11-15 | 2021-08-13 | 泰康保险集团股份有限公司 | Data encryption method, data decryption method and related devices |
| CN109727415B (en) * | 2019-01-26 | 2020-11-17 | 上海启丰电子科技有限公司 | Pulse type electronic fence system |
| CN110048834A (en) * | 2019-03-12 | 2019-07-23 | 深圳壹账通智能科技有限公司 | Dynamic password sending method, device and computer readable storage medium |
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| CN105337729A (en) | 2016-02-17 |
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