CN107171797A - A kind of data ciphering method and device - Google Patents
A kind of data ciphering method and device Download PDFInfo
- Publication number
- CN107171797A CN107171797A CN201710586116.1A CN201710586116A CN107171797A CN 107171797 A CN107171797 A CN 107171797A CN 201710586116 A CN201710586116 A CN 201710586116A CN 107171797 A CN107171797 A CN 107171797A
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- encryption
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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
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/045—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Storage Device Security (AREA)
Abstract
The invention discloses a kind of data ciphering method and device, this method includes：Acquisition at least includes the key parameter of effective parameter, by the way that key parameter is combined into generation encryption key；Initial data is received, initial data is encrypted by encryption key, to obtain encryption data；Wherein, when encryption data is decrypted, if current time exceeds the scope of timeliness parameter, decryption failure.As can be seen here, this method shortens the time that cracker can be cracked to encryption data by setting timeliness parameter, and then adds the difficulty that cracks to data, and then improves the safety and reliability of encrypted data.In addition, data encryption device provided by the present invention, beneficial effect is as described above.
Description
Technical field
The present invention relates to field of data encryption, more particularly to a kind of data ciphering method and device.
Background technology
Along with information-intensive society develop rapidly and the big data epoch arrival, the safety of data is increasingly by people's weight
Depending on, and also undergo many security threats.
The data that user is transmitted and stored in routine use are all often the forms of plaintext, and this this may result in protecting
There are the data on disk or network and the data transmitted by modes such as mails are after being stolen, criminal can be direct
The consequence of clear content is got, therefore the security threat for data by the way of plaintext is transmitted data is too high.
As can be seen here, it is the effective ways for improving data safety data to be encrypted, but is due to the method for existing data encryption
Not in the encryption enterprising row constraint of timeliness, this just given criminal it is sufficient crack the time, this relative reduction encryption data
Security.
There is no the shortcoming of constraint of timeliness to improve encrypted data there is provided a kind of data ciphering method as can be seen here, carry
Security of the high data in storage and transmission, is those skilled in the art's urgent problem to be solved.
The content of the invention
It is an object of the invention to provide a kind of data ciphering method and device, improve the security of encrypted data with can
By property.
In order to solve the above technical problems, the present invention provides a kind of data ciphering method, including：
Acquisition at least includes the key parameter of effective parameter, by the way that key parameter is combined into generation encryption key；
Initial data is received, initial data is encrypted by encryption key, to obtain encryption data；
Wherein, when encryption data is decrypted, if current time exceeds the scope of timeliness parameter, decryption is lost
Lose.
It is preferred that, initial data is encrypted by encryption key and specifically included：
The position of the character in initial data is determined, and position is numbered；
Each character in initial data is encrypted respectively as encryption parameter, and by encryption key for numbering.
It is preferred that, key parameter also includes：
User account and the magic number of user.
It is preferred that, key parameter is combined into generation encryption key is specially：
User account and the magic number of user are combined generation secured account numbers；
The magic number of secured account numbers, timeliness parameter and user is subjected to hybrid operation generation encryption key.
It is preferred that, after encryption data is obtained, this method further comprises：
Encryption data is compiled as binary sequence.
It is preferred that, after encryption data is compiled as into binary sequence, this method further comprises：
Timeliness parameter is compiled as binary sequence, and is used as the stem of encryption data.
It is preferred that, binary sequence is specially two sequences processed of 32.
In addition, the present invention also provides a kind of data encryption device, including：
Key production module, at least includes the key parameter of effective parameter, by the way that key parameter is mutually tied for obtaining
Symphysis is into encryption key；
Data encryption module, for receiving initial data, initial data is encrypted by encryption key, to be added
Ciphertext data；
Wherein, when encryption data is decrypted, if current time exceeds the scope of timeliness parameter, decryption is lost
Lose.
It is preferred that, data encryption module is specifically included：
Numbering submodule, the position for determining the character in initial data, and position is numbered；
Submodule is encrypted, for that will number as encryption parameter, and by encryption key respectively to each in initial data
Character is encrypted.
It is preferred that, key parameter also includes：
User account and the magic number of user.
Data ciphering method provided by the present invention, timeliness parameter is encrypted as one of key parameter the life of key
Into, and initial data is encrypted by encryption key obtains encryption data.Due to having timeliness parameter, institute in encryption key
The constraint in timeliness is also provided with the encryption data after being encrypted by encryption key.When by encryption key to encryption number
During according to being decrypted, first determine whether current time whether in the range of timeliness parameter, if current time beyond when
Parameter area is imitated, even if encryption key is correct, encryption data can not be also decrypted.Therefore, this method shortens cracker
The time that encryption data can be cracked, and then the difficulty that cracks to data is added, and then improve encrypted data
Safety and reliability.In addition, the present invention also provides a kind of data encryption device, beneficial effect is as described above.
Brief description of the drawings
In order to illustrate the embodiments of the present invention more clearly, the required accompanying drawing used in embodiment will be done simply below
Introduce, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ordinary skill people
For member, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of flow chart of data ciphering method provided in an embodiment of the present invention；
Fig. 2 is the flow chart of another data ciphering method provided in an embodiment of the present invention；
Fig. 3 is a kind of data encryption device structure chart provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
Embodiment in invention, those of ordinary skill in the art are not under the premise of creative work is made, and what is obtained is every other
Embodiment, belongs to the scope of the present invention.
The core of the present invention is to provide a kind of data ciphering method, shortens what cracker can be cracked to encryption data
Time, and then improve the safety and reliability of encrypted data.
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Embodiment one
Fig. 1 is a kind of flow chart of data ciphering method provided in an embodiment of the present invention.It refer to Fig. 1, data encryption side
The specific steps of method include：
Step S10：Acquisition at least includes the key parameter of effective parameter, by the way that key parameter is combined into generation encryption
Key.
It is understood that the data due to method provided by the present invention for encryption have certain pact in timeliness
Beam, therefore should be with timeliness parameter in the key parameter for constituting encryption key, and then encryption key is used to data
Just can be associated with the effective time decrypted by data when being encrypted.It should be noted that so-called timeliness parameter, is to use
Come depending on representing the parameter for the prescribed time-limit scope that encryption data can be decrypted, demand of the timeliness parameter according to encipherer,
This is not limited, but should be able to embody that the effective time of encryption data is interval or term of validity cut-off time, can for system it is current when
Numerical value obtained by being added with encryption duration at quarter etc..
Step S11：Initial data is received, initial data is encrypted by encryption key, to obtain encryption data.
Wherein, when encryption data is decrypted, if current time exceeds the scope of timeliness parameter, decryption is lost
Lose.For example, the timeliness parameter set when data are encrypted is on January 1st, 2000, then then illustrate timeliness parameter
Scope is before 1 day January in 2000, if solved at the time of encryption data is decrypted after 1 day January in 2000
Close failure.Due to having timeliness parameter, therefore the initial data being encrypted by encryption key in encryption key, when being respectively provided with
Effect property.
The data ciphering method that the present embodiment is provided, timeliness parameter is encrypted as one of key parameter the life of key
Into, and initial data is encrypted by encryption key obtains encryption data.Due to having timeliness parameter, institute in encryption key
The constraint in timeliness is also provided with the encryption data after being encrypted by encryption key.When by encryption key to encryption number
During according to being decrypted, first determine whether current time whether in the range of timeliness parameter, if current time beyond when
Parameter area is imitated, even if encryption key is correct, encryption data can not be also decrypted.Therefore, this method shortens cracker
The time that encryption data can be cracked, and then the difficulty that cracks to data is added, and then improve encrypted data
Safety and reliability.
Embodiment two
Fig. 2 is the flow chart of another data ciphering method provided in an embodiment of the present invention.Step S10 and Fig. 1 phases in Fig. 2
Together, it will not be repeated here.
As shown in Fig. 2 on the basis of above-described embodiment, as a preferred embodiment, step S11 is specifically wrapped
Include：
Step S20：Initial data is received, the position of the character in initial data is determined, and position is numbered.
The purpose that the position of initial data character is numbered is, when subsequently character is encrypted respectively, often
Individual character each uses the numbering of itself as the parameter of encryption, therefore, even if identical character is used as ginseng by different numberings
After several encryptions, as a result also differ.
Step S21：It will number as encryption parameter, and each character in initial data carried out respectively by encryption key
Encryption, to obtain encryption data.
It is understood that each character in initial data is individually encrypted this step, and will be every
Position Number of one character in initial data as encryption parameter, so two character phases in initial data
Together, but be due to that position of two characters in initial data is different, cause it is different for the Position Number parameter of encryption, therefore
Result after encryption is also different.Therefore, it is to avoid after because some character is cracked in initial data, it is other with the character phase
Occur with the situation that character is similarly cracked, add the difficulty for cracking data, and then improve the safety of encrypted data
Property and reliability.
In specific implementation, can be to the mode that each character is encrypted：
N=C-key+ (i*iMagicNum).Wherein N is the character after encryption；C is the character before encryption；I is encrypted
Position Number of the character in data；IMagicNum is the magic number of user.It can be seen that the i of each character is different, even if therefore
Character C before encryption is identical, and the character N after encryption is also different.It is understood that the above-mentioned mode that each character is encrypted
Simply one kind in numerous modes, numerous to list herein.
In addition, as a preferred embodiment, key parameter also includes：
User account and the magic number of user.
It is due to the acquisition of user account convenience as key parameter using user account and the body of encryption people can be signified
Part information, and it is due to that it is generated by encrypting people's setting or system completely to use the magic number of user, is difficult to be learnt by other people, user
The acquisition modes of magic number can be the password using user, or be generated according to user cipher.Due to passing through user account, user
Magic number and timeliness parameter these three dimensions constitute key, therefore needs encryption data are decrypted while having these three
Parameter, and then improve the security of encryption data.It should be noted that key parameter can also include other components,
Do not limit herein.
For the ease of the understanding to above-mentioned embodiment, one group of specific key parameter is provided below to further illustrate.
User's evil spirit number is that 8341, user account is that guest, timeliness parameter are to encrypt 30 seconds after the moment in key parameter.To encryption
When data are decrypted, if the magic number of user in key parameter is not 8341, even same user account guest and when
Effect parameter is similarly 30 seconds after the encryption moment, also can not correctly be decrypted；Similarly, 30 seconds if more than after the encryption moment
Timeliness parameter request, i.e., using the magic number 8341 of same user account guest and user, also can not correctly decrypt；Similarly,
, also can not be correct even if meeting timeliness parameter request and the magic number 8341 of user if user account is root rather than guest
Decryption.
In addition, as a preferred embodiment, by key parameter be combined generation encryption key be specially：
User account and the magic number of user are combined generation secured account numbers；
The magic number of secured account numbers, timeliness parameter and user is subjected to hybrid operation generation encryption key.
The secured account numbers that the magic number of user account and user is combined into generation are higher for the confidentiality of user account, institute
Also it is more difficult to be obtained by criminal using the key that is generated as key parameter by secured account numbers.
In specific implementation, key parameter hybrid operation generation key mode can be：Key=iTS-(iMagicNum*
16)+iSecID.Wherein, key is key；ITS is timeliness parameter；IMagicNum is the magic number of user；ISecID is user account
The secured account numbers of generation are combined with the magic number of user.It should be noted that the generating mode of above-mentioned key is numerous modes
In one kind, it is numerous to list herein.
As shown in Fig. 2 as a preferred embodiment, after encryption data is obtained, this method further comprises：
Step S22：Encryption data is compiled as binary sequence.
Because binary digit is the language that computer can be directly read, therefore computer is transmitting and handled binary system sequence
It is not error-prone during row, with higher reliability.
As shown in Fig. 2 as a preferred embodiment, after encryption data is compiled as into binary sequence, the party
Method further comprises：
Step S23：Timeliness parameter is compiled as binary sequence, and is used as the stem of encryption data.
It is understood that being in order in use secret key decryption data using the purpose of timeliness parameter as encryption data stem
It is preceding first to judge whether within effective time, the step of timeliness parameter in key carries out ageing judgement can be eliminated the need for.Phase
It is corresponding, when encryption data is decrypted, it is necessary to first read the timeliness parameter of encryption data stem, and judge the encryption
Whether data are in the range of decryption limitation.If exceeding the scope of decryption limitation, an invalid key can be generated,
It is mess code to cause the data after decryption；Otherwise according to being decrypted character by character.
On the basis of above-mentioned embodiment, as a preferred embodiment, binary sequence is specially 32
Two sequences processed.
Because 32 digital scopes that can be represented are bigger, the total amount of disposable encryption data can be improved, therefore can be with
Make the more efficient of data encryption.
Embodiment three
Hereinbefore it is described in detail for a kind of embodiment of data ciphering method, the present invention also provides a kind of
Data encryption device, because the embodiment of device part and the embodiment of method part are mutually corresponding, therefore the reality of device part
The description that example refers to the embodiment of method part is applied, wouldn't be repeated here.
Fig. 3 is a kind of data encryption device structure chart provided in an embodiment of the present invention.As shown in figure 3, the embodiment of the present invention
The data encryption device of offer, including：
Key production module 10, at least includes the key parameter of effective parameter for obtaining, by by key parameter phase
With reference to generation encryption key.
Data encryption module 11, for receiving initial data, initial data is encrypted by encryption key, to obtain
Encryption data.
Wherein, when encryption data is decrypted, if current time exceeds the scope of timeliness parameter, decryption is lost
Lose.
Data encryption device provided by the present invention, timeliness parameter is encrypted as one of key parameter the life of key
Into, and initial data is encrypted by encryption key obtains encryption data.Due to having timeliness parameter, institute in encryption key
The constraint in timeliness is also provided with the encryption data after being encrypted by encryption key.When by encryption key to encryption number
During according to being decrypted, first determine whether current time whether in the range of timeliness parameter, if current time beyond when
Parameter area is imitated, even if encryption key is correct, encryption data can not be also decrypted.Therefore, the present apparatus shortens cracker
The time that encryption data can be cracked, and then the difficulty that cracks to data is added, and then improve encrypted data
Safety and reliability.
On the basis of embodiment three, as a preferred embodiment, data encryption module is specifically included：
Numbering submodule, the position for determining the character in initial data, and position is numbered；
Submodule is encrypted, for that will number as encryption parameter, and by encryption key respectively to each in initial data
Character is encrypted.
On the basis of embodiment three, as a preferred embodiment, key parameter also includes：
User account and the magic number of user.
A kind of data ciphering method and device provided by the present invention are described in detail above.Each in specification
Embodiment is described by the way of progressive, and what each embodiment was stressed is the difference with other embodiment, each
Between embodiment identical similar portion mutually referring to.For device disclosed in embodiment, because it is public with embodiment
The method opened is corresponding, so description is fairly simple, related part is referring to method part illustration.It should be pointed out that for
For those skilled in the art, under the premise without departing from the principles of the invention, if can also be to present invention progress
Dry to improve and modify, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
It should also be noted that, in this manual, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include be this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there is other identical element in the process including the key element, method, article or equipment.
Claims (10)
1. a kind of data ciphering method, it is characterised in that including：
Acquisition at least includes the key parameter of effective parameter, by the way that the key parameter is combined into generation encryption key；
Initial data is received, the initial data is encrypted by the encryption key, to obtain encryption data；
Wherein, when the encryption data is decrypted, if current time exceeds the scope of the timeliness parameter, decrypt
Failure.
2. according to the method described in claim 1, it is characterised in that described that the initial data is entered by the encryption key
Row encryption is specifically included：
The position of the character in the initial data is determined, and the position is numbered；
Using the numbering as encryption parameter, and by the encryption key respectively to each character in the initial data
It is encrypted.
3. method according to claim 1 or 2, it is characterised in that the key parameter also includes：
User account and the magic number of user.
4. method according to claim 3, it is characterised in that described that the key parameter is combined generation encryption key
Specially：
The user account and the magic number of the user are combined generation secured account numbers；
The magic number of the secured account numbers, the timeliness parameter and the user is subjected to hybrid operation generation encryption key.
5. method according to claim 1 or 2, it is characterised in that it is described obtain encryption data after, this method is further
Including：
The encryption data is compiled as binary sequence.
6. method according to claim 5, it is characterised in that the encryption data is compiled as into binary sequence described
Afterwards, this method further comprises：
The timeliness parameter is compiled as binary sequence, and is used as the stem of the encryption data.
7. method according to claim 6, it is characterised in that the binary sequence is specially two sequences processed of 32.
8. a kind of data encryption device, it is characterised in that including：
Key production module, at least includes the key parameter of effective parameter, by the way that the key parameter is mutually tied for obtaining
Symphysis is into encryption key；
Data encryption module, for receiving initial data, the initial data is encrypted by the encryption key, with
To encryption data；
Wherein, when the encryption data is decrypted, if current time exceeds the scope of the timeliness parameter, decrypt
Failure.
9. device according to claim 8, it is characterised in that the data encryption module is specifically included：
Numbering submodule, the position for determining the character in the initial data, and the position is numbered；
Submodule is encrypted, for being numbered described as encryption parameter, and by the encryption key respectively to the original number
It is encrypted according to interior each character.
10. device according to claim 8, it is characterised in that the key parameter also includes：
User account and the magic number of user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586116.1A CN107171797A (en) | 2017-07-18 | 2017-07-18 | A kind of data ciphering method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586116.1A CN107171797A (en) | 2017-07-18 | 2017-07-18 | A kind of data ciphering method and device |
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| CN107171797A true CN107171797A (en) | 2017-09-15 |
Family
ID=59817089
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| CN201710586116.1A Pending CN107171797A (en) | 2017-07-18 | 2017-07-18 | A kind of data ciphering method and device |
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| WO2022082667A1 (en) * | 2020-10-22 | 2022-04-28 | 华为技术有限公司 | Method and apparatus for secure transmission of data |
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