CN102855419A - Copyright protection method for data files of intelligent terminals - Google Patents
Copyright protection method for data files of intelligent terminals Download PDFInfo
- Publication number
- CN102855419A CN102855419A CN2012102545564A CN201210254556A CN102855419A CN 102855419 A CN102855419 A CN 102855419A CN 2012102545564 A CN2012102545564 A CN 2012102545564A CN 201210254556 A CN201210254556 A CN 201210254556A CN 102855419 A CN102855419 A CN 102855419A
- Authority
- CN
- China
- Prior art keywords
- data file
- user
- file
- data
- intelligent terminal
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a copyright protection method for data files of intelligent terminals, and belongs to the technical field of digital copyright protection. The method includes setting encipherment protection strategies including adopted encryption algorithm, used key length, generation type of keys and basic limits of authority of users for common data files, wherein the basic limits of authority include whether the data files can be edited and printed and whether user intelligent terminals are permitted to store dedicated authorized data; performing protection process on the common data files to be protected according to the encipherment protection strategies, and applying the protected data files to the user intelligent terminals. According to the copyright protection method, content of the protected data files is encrypted, if a user wants to access the files, he must download authorized data from an authorization server, the encrypted data files cannot be opened without the authorized data, and non-authoritative usage of the protected data can be prevented effectively.
Description
Technical field
The present invention relates to digital copyright protection technology, relate to the data file copy-right protection method of intelligent terminal.
Background technology
Along with the development of mobile communication, internet and smart mobile phone, also flourish towards the Digital Media business of intelligent terminal.But downloadable music, Online Music foradownloaded video, Online Video, mobile TV, online e-book, and can download the Digital Media such as e-book so that people's life is more rich and varied.
But be accompanied by the flourish of mobile digital media business and what come is the surge of pirate or other unauthorized uses, brought huge economic loss for digital media content provider, also make it postpone the issue of fresh content on smart mobile phone, thereby limited the development of mobile digital publishing, indirectly had influence on smart phone user.
The general data file refers to the All Files except executable program file, comprise media file, document files etc., the data file relevant with concrete application program particularly, such as the data library file, mail document etc., these files often not only need to browse, more need to revise, and because the diversity of file layout is difficult to make general browser or editing machine, can only browses or edit by existing application software.Also there is not at present a kind of effective general copy-right protection method for the general data file.
Summary of the invention
For the defective that exists in the prior art, the purpose of this invention is to provide a kind of data file copy-right protection method of intelligent terminal, be used for realizing the copyright protection of the general data file on the intelligent terminal.
For reaching above purpose, the technical solution used in the present invention is:
A kind of data file copy-right protection method of intelligent terminal may further comprise the steps:
The encipherment protection strategy of general data file is set, comprises: the generating mode of the cryptographic algorithm of employing, used key length, key and user's basic authority; Whether described basic authority comprises that can data file edit and print, and allow user's intelligent terminal to preserve the specific authorisation data; According to described encipherment protection strategy general data file to be protected is carried out conservation treatment, user's intelligent terminal is used described protected data file.
The present invention will access this document to the content-encrypt of protected data file, must download authorization data from authorization server, the with no authorized data, and the data file of encryption can't be opened, and can effectively prevent the unauthorized use of protected data.
Description of drawings
The copy-right protection method process flow diagram of the general data file that Fig. 1 provides for the embodiment of the invention;
Fig. 2 is the method flow diagram that in the embodiment of the invention general data file to be protected is carried out conservation treatment;
Fig. 3 is the method flow diagram that user's intelligent terminal is used the protected data file in the embodiment of the invention.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
The data file protection strategy that present embodiment provides is a kind of relatively general protection strategy, protects take file as unit, can effectively prevent uncontrolled diffusion and the unwarranted access of file.
As shown in Figure 1, present embodiment provides a kind of copy-right protection method of general data file, may further comprise the steps:
The cryptographic algorithm of step 1031, the encryption key of using generation and selection is encrypted pending general data file.
Then the specific authorisation data that the unique code that step 1045, data file authorization server are sent according to terminal and file identification obtain this terminal issue terminal device with these specific authorisation data.
After step 1046, user's intelligent terminal obtain the specific authorisation data from this locality or data file authorization server, in internal memory, decipher this specific authorisation data with user's unique code, from these specific authorisation data, obtain the encryption key of data file to be opened, user's basic authority and authority information.If the user has the authority in this locality storage specific authorisation data, the specific authorisation data before then will deciphering are saved in this locality.
The major advantage of said method is:
1, can effectively prevent the unauthorized use of protected data file; because the content of protected data file is encrypted, and access this document, must download authorization data from authorization server; the with no authorized data, the data file of encryption can't normally be accessed.
2; can prevent effectively that the protected data file is by the diffusion of improper approach; because the authorization data of each equipment and user's unique code pass through crypto-binding; the protected data file that device A is downloaded can only normally be accessed on device A; if the user sends to equipment B with the protected data file downloaded by bluetooth etc.; then equipment B can't normally be accessed; because even equipment B can access the authorization data of device A; because the unique code of equipment B is different from device A; therefore equipment B can't the decrypt authorized data, also just can't normally access the protected data file.
3, can carry out to a certain degree control of authority to the protected data file, as the control user can edit, printing etc.
Method and system of the present invention is not limited to the embodiment described in the embodiment, and those skilled in the art's technical scheme according to the present invention draws other embodiment, belongs to equally technological innovation scope of the present invention.
Claims (8)
1. the data file copy-right protection method of an intelligent terminal is characterized in that, may further comprise the steps:
The encipherment protection strategy of general data file is set, comprises: the generating mode of the cryptographic algorithm of employing, used key length, key and user's basic authority; Whether described basic authority comprises that can data file edit and print, and allow user's intelligent terminal to preserve the specific authorisation data;
According to described encipherment protection strategy general data file to be protected is carried out conservation treatment, user's intelligent terminal is used described protected data file.
2. the data file copy-right protection method of intelligent terminal according to claim 1 is characterized in that the method further comprises:
During general data file access routine access protected data file, user's intelligent terminal carries out whole process control to access program, guarantee this program operational character should the user for basic authority and the authority information of this document.
3. the data file copy-right protection method of intelligent terminal according to claim 2 is characterized in that, the generating mode of described key comprises that at random generation or user input setting.
4. the data file copy-right protection method of intelligent terminal according to claim 3 is characterized in that, described the encipherment protection strategy is set after, also further comprise:
Generating mode according to key generates key, when described generating mode arranges for user's input, key for user's input, if the key length of described input is during less than described used key length, then by expansion algorithm the key length of described input is expanded to used key length, the key character of expansion is from the key character of user's input.
5. the data file copy-right protection method of intelligent terminal according to claim 4 is characterized in that, describedly general data file to be protected is carried out conservation treatment specifically comprises:
Encrypt pending general data file with the key of described generation and the cryptographic algorithm of employing;
In the general data file of having encrypted, add file header, form the protected data file; Comprise in the described file header: proof test value and the file identification of the cryptographic algorithm of employing, used key length, key;
Described protected data File Upload is arrived the data file Download Server;
Described encipherment protection strategy, used key and the file identification of encryption are sent to the data file authorization server; generate generic authorization data by the data file authorization server, wherein comprise described file identification, encrypt used key and user's basic authority.
6. the data file copy-right protection method of intelligent terminal according to claim 5 is characterized in that, described file identification is comprised of the cryptographic hash of file name and file content, can identify uniquely this document.
7. according to claim 5 or the data file copy-right protection method of 6 described intelligent terminals, it is characterized in that described application protected data file specifically comprises:
User's intelligent terminal that described protected data file is downloaded in request obtains the file identification of this document by clicking the link of wanting download file, and uploads user's unique code of this document sign and this user to the data file authorization server;
The data file authorization server uses described user's unique code as authorization key, and the Partial encryption generic authorization data generates the specific authorisation data of this user's intelligent terminal;
In the specific authorisation data, add this user for the authority information of this document, comprise and to open and to edit this document;
User's intelligent terminal is from data file download server protected data file;
When user's intelligent terminal is opened the protected data file, from this locality or the data file authorization server obtain the specific authorisation data, in internal memory, decipher this specific authorisation data with described user's unique code, obtain the encryption key of protected data file, user's basic authority and authority information; If the user has the authority of preserving the specific authorisation data in this locality, the specific authorisation data before then will deciphering are saved in this locality;
User's intelligent terminal according to authority information determine whether to have the right to open and/editor this document, if this user does not open authority, then forbid opening and providing prompting; If the authority of opening is then dynamically deciphered the protected data file with encryption key, then with the deciphering data content delivery to general data file access program; If open and editing authority, then general data file access program can also be edited this document.
8. the data file copy-right protection method of intelligent terminal according to claim 7 is characterized in that, described from this locality or the data file authorization server obtain the specific authorisation data and specifically comprise:
User's intelligent terminal obtains the file identification of this document from file header, according to file identification is searched this document in this locality specific authorisation data, if having, then directly obtain described specific authorisation data from this locality; Otherwise described file identification and user's unique code are sent to the data file authorization server, request specific authorisation data;
The data file authorization server obtains the specific authorisation data according to described user's unique code and file identification, and issues user's intelligent terminal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210254556.4A CN102855419B (en) | 2012-07-20 | 2012-07-20 | The data file copyright guard method of intelligent terminal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210254556.4A CN102855419B (en) | 2012-07-20 | 2012-07-20 | The data file copyright guard method of intelligent terminal |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102855419A true CN102855419A (en) | 2013-01-02 |
CN102855419B CN102855419B (en) | 2015-09-09 |
Family
ID=47402002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201210254556.4A Active CN102855419B (en) | 2012-07-20 | 2012-07-20 | The data file copyright guard method of intelligent terminal |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN102855419B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106469281A (en) * | 2015-08-18 | 2017-03-01 | 华为技术有限公司 | The management method of data file, cloud management point and system in a kind of cloud |
CN111158719A (en) * | 2019-12-26 | 2020-05-15 | 湖南快乐阳光互动娱乐传媒有限公司 | Application software upgrading method and device |
WO2021052267A1 (en) * | 2019-09-17 | 2021-03-25 | 张维加 | Cross-device editing system for digital files |
CN116545778A (en) * | 2023-07-06 | 2023-08-04 | 北京安天网络安全技术有限公司 | Unauthorized communication equipment position determining method, electronic equipment and storage medium |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020002413A1 (en) * | 2000-06-30 | 2002-01-03 | Jun Tokue | Contents distribution system, portable terminal player, and contents provider |
JP2002073420A (en) * | 2000-08-25 | 2002-03-12 | Matsushita Electric Ind Co Ltd | Copyright protection system |
CN102136048A (en) * | 2011-03-28 | 2011-07-27 | 东南大学 | Mobile phone Bluetooth-based ambient intelligent computer protection device and method |
-
2012
- 2012-07-20 CN CN201210254556.4A patent/CN102855419B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020002413A1 (en) * | 2000-06-30 | 2002-01-03 | Jun Tokue | Contents distribution system, portable terminal player, and contents provider |
JP2002073420A (en) * | 2000-08-25 | 2002-03-12 | Matsushita Electric Ind Co Ltd | Copyright protection system |
CN102136048A (en) * | 2011-03-28 | 2011-07-27 | 东南大学 | Mobile phone Bluetooth-based ambient intelligent computer protection device and method |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106469281A (en) * | 2015-08-18 | 2017-03-01 | 华为技术有限公司 | The management method of data file, cloud management point and system in a kind of cloud |
CN106469281B (en) * | 2015-08-18 | 2020-01-17 | 华为技术有限公司 | Management method of data files in cloud, cloud management point and system |
WO2021052267A1 (en) * | 2019-09-17 | 2021-03-25 | 张维加 | Cross-device editing system for digital files |
CN111158719A (en) * | 2019-12-26 | 2020-05-15 | 湖南快乐阳光互动娱乐传媒有限公司 | Application software upgrading method and device |
CN111158719B (en) * | 2019-12-26 | 2023-06-16 | 湖南快乐阳光互动娱乐传媒有限公司 | Application software upgrading method and device |
CN116545778A (en) * | 2023-07-06 | 2023-08-04 | 北京安天网络安全技术有限公司 | Unauthorized communication equipment position determining method, electronic equipment and storage medium |
CN116545778B (en) * | 2023-07-06 | 2023-09-01 | 北京安天网络安全技术有限公司 | Unauthorized communication equipment position determining method, electronic equipment and storage medium |
Also Published As
Publication number | Publication date |
---|---|
CN102855419B (en) | 2015-09-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8918633B2 (en) | Information processing device, information processing system, and program | |
CN102819704B (en) | The document copyright protection method of intelligent terminal | |
CN106022154B (en) | Database encryption method and database server | |
US8826036B1 (en) | Ebook encryption using variable keys | |
US20040039932A1 (en) | Apparatus, system and method for securing digital documents in a digital appliance | |
CN106506159A (en) | Encryption method and equipment for key safety | |
CN107659632A (en) | A kind of file encryption-decryption method, device and computer-readable recording medium | |
WO2006110213A2 (en) | Apparatus, system, and method for securing digital documents in a digital appliance | |
CN101014944A (en) | Method and apparatus for digital rights management | |
CN102799803A (en) | Secure removable media and method for managing the same | |
CN103390026A (en) | Mobile intelligent terminal security browser and working method thereof | |
CN103109510A (en) | Resource safety access method and device | |
CN101578608B (en) | Methods and apparatuses for accessing content based on a session ticket | |
CN103731395A (en) | Processing method and system for files | |
CN101989988A (en) | Copyright protection system and method of ebook online reading | |
CN105117635A (en) | Local data security protection system and method | |
CN112800392A (en) | Authorization method and device based on soft certificate and storage medium | |
CN102855419B (en) | The data file copyright guard method of intelligent terminal | |
CN101174941B (en) | Off-line digital copyright protection method and device for mobile terminal document | |
CN103095482A (en) | Program development maintenance system | |
CN101916350A (en) | Method and system for protecting terminal reading contents | |
CN108768938B (en) | A kind of web data encryption and decryption method and device | |
CN102222195B (en) | E-book reading method and system | |
CN102842002B (en) | The digital media copyright protection method of intelligent terminal | |
CN103532712B (en) | digital media file protection method, system and client |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |