CN106778312A - The encipher-decipher method of file encryption-decryption system - Google Patents
The encipher-decipher method of file encryption-decryption system Download PDFInfo
- Publication number
- CN106778312A CN106778312A CN201611247792.8A CN201611247792A CN106778312A CN 106778312 A CN106778312 A CN 106778312A CN 201611247792 A CN201611247792 A CN 201611247792A CN 106778312 A CN106778312 A CN 106778312A
- Authority
- CN
- China
- Prior art keywords
- file
- intelligent terminal
- encipher
- server
- home server
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6272—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database by registering files or documents with a third party
Abstract
The invention discloses a kind of encipher-decipher method of file encryption-decryption system, mainly solving existing cipher mode encryption file present in prior art makes the confidentiality of file not strong, easily crack or after download, can be used in multiple equipment, the ownership of file is received the problem of infringement.The encipher-decipher method of this document encrypting and deciphering system is that file first is dispersed as into thousands of fragment file, random that fragment file is divided into three parts of difference encrypting storings beyond the clouds on server, home server, intelligent terminal, the intelligent terminal for obtaining authority downloads composite music stream after fragment file decryption from home server, intelligent terminal respectively.By such scheme, invention achieves the purpose of stronger classified document, with practical value and promotional value very high.
Description
Technical field
It is to be related to a kind of encipher-decipher method of file encryption-decryption system specifically the present invention relates to encryption and decryption field.
Background technology
In today that network technology is developed rapidly, the file such as down-load music has been known technology from network；But,
The music file that can be downloaded on network at present is the music file with original singer, accompaniment, and the provider of music file is simultaneously
Downloaded file is arbitrarily spread without technically limitation user, the intellectual property to authorship is thus likely to cause
Infringement.Existing encrypting and deciphering system is decrypted when using frequently with directly by whole file encryption by key；Aforesaid way is encrypted
File makes the confidentiality of file not strong, easily cracks or after download, can be used in multiple equipment, makes all of file
Power receives infringement.
The content of the invention
It is an object of the invention to provide a kind of encipher-decipher method of file encryption-decryption system, to solve existing cipher mode
Encryption file makes the confidentiality of file not strong, easily cracks or after download, can be used in multiple equipment, makes file
Ownership receives the problem of infringement.
In order to solve the above problems, the present invention provides following technical scheme：
A kind of encipher-decipher method of file encryption-decryption system, file encryption-decryption system include management system, cloud server,
Home server, intelligent terminal；The encipher-decipher method of file encryption-decryption system is comprised the following steps：
A file is randomly divided into three parts by () management system, cloud server, home server, intelligence are stored in respectively eventually
On end；
B at random be dispersed as partial document thereon respectively multiple broken by () cloud server, home server, intelligent terminal
Piece file；
C () cloud server, home server, intelligent terminal are respectively to fragment file encryption thereon；
D intelligent terminal that () obtains authority downloads fragment file from cloud server, home server respectively；
E the fragment file decryption downloaded from cloud server, home server is combined to form complete by () intelligent terminal
File.
Specifically, cloud server, home server, intelligent terminal are given birth to according to respective condition code respectively in step (c)
Secret key pair fragment file thereon is produced to be encrypted.
Specifically, the method for intelligent terminal acquisition authority is comprised the following steps in step (d)：
(d1) user applies downloading file after being registered in management system；
(d2) whether keeper's examination ＆ verification passes through, and is, then perform step (d3), no, then reject application；
(d3) management system sends the mandate time and effectively decodes key to the intelligent terminal of user；User is secret according to decoding
Key decodes the fragment file downloaded from cloud server, home server within the time of setting.
Specifically, the fragment file transmission in step (d) between intelligent terminal and cloud server, home server is
Encrypted transmission.
Specifically, encrypted transmission is encrypted according to download time, fragment file and intelligent terminal condition code.
Specifically, cloud server, home server, intelligent terminal to break up mode different；Different home servers
With different intelligent terminals to break up mode different.
Specifically, file is music file；It is alternatively other needs the file of encryption, such as video.
Specifically, intelligent terminal is mobile phone or computer；It is alternatively other intelligent terminals, mobile phone preferred music mobile phone.
Compared with prior art, the invention has the advantages that：File is randomly divided into three parts of difference in the present invention
It is stored on cloud server, home server, intelligent terminal, is then broken up encryption, makes the confidentiality of file stronger；Fragment
Encrypted transmission is used when file is transmitted, also makes the confidentiality of file stronger；Complete file was needed within the time for authorizing, and was obtained
The intelligent terminal of authority respectively from home server, intelligent terminal download remaining fragment file and decrypt reconfigure after,
Complete file can be formed, i.e., cloud server, home server, intelligent terminal work and can just obtain simultaneously within the time for authorizing
File completely is obtained, makes the confidentiality of file more preferable.
Specific embodiment
With reference to embodiment, the invention will be further described, and embodiments of the present invention include but is not limited to following reality
Apply example.
File encryption-decryption system includes management system, cloud server, home server, intelligent terminal；File encryption-decryption
The encipher-decipher method of system is that file first is randomly divided into three parts, and cloud server, home server, intelligence are stored in respectively eventually
On end, encryption is then broken up, the intelligent terminal for obtaining authority downloads fragment file solution from home server, intelligent terminal respectively
Close rear composite music stream；The step of it is specifically included is as follows：
File is randomly divided into three parts by 1.1 management systems, and cloud server, home server, intelligence are stored in respectively eventually
On end；
At random be dispersed as partial document thereon respectively multiple broken by 1.2 cloud servers, home server, intelligent terminal
Piece file；
1.3 cloud servers, home server, intelligent terminal are respectively to fragment file encryption thereon；
1.4 intelligent terminals for obtaining authority download fragment file from cloud server, home server respectively；
The fragment file decryption downloaded from cloud server, home server is combined to form complete by 1.4 intelligent terminals
File.
Wherein, the method for intelligent terminal acquisition authority is comprised the following steps in step 1.4：
2.1 users apply downloading file after being registered in management system；
Whether 2.2 keepers examination ＆ verification passes through, and is, then perform step 2.3, no, then reject application；
2.3 management systems send the mandate time and effectively decode key to the intelligent terminal of user；User is secret according to decoding
Key decodes the fragment file downloaded from cloud server, home server within the time of setting.
Wherein, cloud server, home server, intelligent terminal are produced according to respective condition code respectively in step 1.3
Secret key pair fragment file thereon is encrypted；It is broken between intelligent terminal and cloud server, home server in step 1.4
The transmission of piece file is encrypted transmission；Encrypted transmission is added according to download time, fragment file and intelligent terminal condition code
It is close；File is music file；It is alternatively other needs the file of encryption, such as video；Intelligent terminal is mobile phone or computer；Its
Can be other intelligent terminals, mobile phone preferred music mobile phone；Cloud server, home server, intelligent terminal break up mode not
Together；Different home server and different intelligent terminals to break up mode different, make file security stronger, distinct device
Between can not use same mandate key.
The ciphering process that step 1.1-1.3 then completes file is completed, the solution that step 1.4-2.3 then completes file is completed
Close process；File is randomly divided into three parts in the present invention to be stored in respectively on cloud server, home server, intelligent terminal,
Then encryption is broken up, makes the confidentiality of file stronger；Encrypted transmission is used when fragment file is transmitted, also makes the confidentiality of file
It is stronger；Complete file was needed within the time for authorizing, and obtained the intelligent terminal of authority respectively from home server, intelligent terminal
After downloading remaining fragment file and decrypting and reconfigure, could form complete file, i.e., high in the clouds takes within the time of mandate
Work could obtain complete file simultaneously for business device, home server, intelligent terminal, make the confidentiality of file more preferable.
According to above-described embodiment, the present invention just can be well realized.What deserves to be explained is, before said structure design
Put, to solve same technical problem, even if some made in the present invention are used without substantial change or polishing
Technical scheme essence still as the present invention, therefore it should also be as within the scope of the present invention.
Claims (8)
1. a kind of encipher-decipher method of file encryption-decryption system, file encryption-decryption system includes management system, cloud server, sheet
Ground server, intelligent terminal, it is characterised in that the encipher-decipher method of file encryption-decryption system is comprised the following steps：
A file is randomly divided into three parts by () management system, be stored in respectively on cloud server, home server, intelligent terminal；
B partial document thereon is dispersed as multiple fragment texts by () cloud server, home server, intelligent terminal at random respectively
Part；
C () cloud server, home server, intelligent terminal are respectively to fragment file encryption thereon；
D intelligent terminal that () obtains authority downloads fragment file from cloud server, home server respectively；
E the fragment file decryption downloaded from cloud server, home server is combined to form complete file by () intelligent terminal.
2. the encipher-decipher method of file encryption-decryption system according to claim 1, it is characterised in that high in the clouds in step (c)
Server, home server, intelligent terminal produce secret key pair fragment file thereon and are added according to respective condition code respectively
It is close.
3. the encipher-decipher method of file encryption-decryption system according to claim 1, it is characterised in that intelligence in step (d)
The method that terminal obtains authority is comprised the following steps：
(d1) user applies downloading file after being registered in management system；
(d2) whether keeper's examination ＆ verification passes through, and is, then perform step (d3), no, then reject application；
(d3) management system sends the mandate time and effectively decodes key to the intelligent terminal of user；User exists according to decoding key
The fragment file that decoding is downloaded from cloud server, home server in the time of setting.
4. the encipher-decipher method of file encryption-decryption system according to claim 1, it is characterised in that intelligence in step (d)
Fragment file transmission between terminal and cloud server, home server is encrypted transmission.
5. the encipher-decipher method of file encryption-decryption system according to claim 4, it is characterised in that encrypted transmission is basis
Download time, fragment file and intelligent terminal condition code are encrypted.
6. according to the encipher-decipher method of claim 1-5 any one file encryption-decryption systems, it is characterised in that cloud server,
Home server, intelligent terminal to break up mode different；Different home server and different intelligent terminals break up mode
It is different.
7. the encipher-decipher method of file encryption-decryption system according to claim 6, it is characterised in that file is music text
Part.
8. the encipher-decipher method of file encryption-decryption system according to claim 6, it is characterised in that intelligent terminal is mobile phone
Or computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611247792.8A CN106778312A (en) | 2016-12-29 | 2016-12-29 | The encipher-decipher method of file encryption-decryption system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611247792.8A CN106778312A (en) | 2016-12-29 | 2016-12-29 | The encipher-decipher method of file encryption-decryption system |
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| Publication Number | Publication Date |
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| CN106778312A true CN106778312A (en) | 2017-05-31 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611247792.8A Pending CN106778312A (en) | 2016-12-29 | 2016-12-29 | The encipher-decipher method of file encryption-decryption system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107480543A (en) * | 2017-08-07 | 2017-12-15 | 安徽优易思信息技术有限责任公司 | The read method and device of a kind of data |
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| CN1882043A (en) * | 2005-06-16 | 2006-12-20 | 刘畅 | Digital shooting system and digital shooting method |
| CN102892111A (en) * | 2011-07-19 | 2013-01-23 | Sk电信有限公司 | Transmitting device, receiving device, and operation method thereof |
| CN102693398B (en) * | 2012-05-09 | 2015-04-01 | 深圳大学 | Data encryption method and system |
| CN103428172A (en) * | 2012-05-18 | 2013-12-04 | 袁斌 | Method for safely storing information and method for safely reading information |
| CN103595793A (en) * | 2013-11-13 | 2014-02-19 | 华中科技大学 | Cloud data safe deleting system and method without support of trusted third party |
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Application publication date: 20170531 |
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