CN102117395A - Electronic digital information copyright protection method and system as well as electronic terminal - Google Patents
Electronic digital information copyright protection method and system as well as electronic terminal Download PDFInfo
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- CN102117395A CN102117395A CN2009102480708A CN200910248070A CN102117395A CN 102117395 A CN102117395 A CN 102117395A CN 2009102480708 A CN2009102480708 A CN 2009102480708A CN 200910248070 A CN200910248070 A CN 200910248070A CN 102117395 A CN102117395 A CN 102117395A
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Abstract
The invention provides an electronic digital information copyright protection method and system as well as an electronic terminal. The method comprises: the electronic terminal transmits an electronic digital information downloading request to a server; the server encrypts the electronic digital information by use of an encryption key to obtain encrypted digital information; the server transmits the encrypted digital information to the electronic terminal; the electronic terminal receives and stores the encrypted digital information; and the electronic terminal determines whether to decrypt the encrypted digital information by use of a decryption key, and if yes, displaying the decrypted electronic digital information or forwarding the decrypted electronic digital information meeting a preset forwarding condition or a user-defined forwarding condition. Because the electronic digital information to be distributed or stored is encrypted by the encryption key, the encrypted electronic digital information has to be decrypted before being displayed for forwarded by a user, so that only the authorized user can process the electronic digital information, thereby protecting the copyright of the electronic digital information occupier.
Description
Technical field
The present invention relates to electronic device field, particularly relate to a kind of copy-right protection method and system of electronic digit information, and, a kind of electric terminal.
Background technology
Along with development of electronic technology, the content that electronic digit information comprises is more and more abundanter, the form of expression is also more and more, as: various e-book, various office, pdf, document files such as text, various figures, image, animation, sound, multimedia files such as video, and, various files in stream media etc., promoted the development of electronic digit media termination industry, occurred various electronic terminal product miscellaneous on the market, as can reading electronic book or the mobile phone terminal of audio plays video file, the PSP terminal, E-book reader etc., thereby, make the consumer groups of electronic digit medium obtain rapid expansion.
Yet, existing electronic digit information majority all is freely to duplicate or download from the webserver, the proprietary rights and interests of electronic digit copyright in information are difficult to be protected, greatly dampened the enthusiasm of copyright holder's creation, copyright legal dispute problem also may appear, and very unfavorable to the long term growth of electronic digit information industry; In addition, the existing mode of freely propagating, the quality of the uncontrollable electronic digit information content, even have a lot of flames also to obtain propagation, also can damage electronic digit information user's interests conversely.
In a word, need the urgent technical matters that solves of those skilled in the art to be exactly: how to control the communication process of electronic digit information, to ensure the proprietary rights and interests of electronic digit copyright in information.
Summary of the invention
Technical matters to be solved by this invention provides a kind of copy-right protection method of electronic digit information; solve the copyright control problem in the electronic digit information communication process; the proprietary rights and interests of electronic digit copyright in information can be protected, and the quality and the transmission security of the electronic digit information content can be controlled.
The present invention also provides a kind of copyright protecting system of electronic digit information, and a kind of electric terminal is to guarantee said method application in practice.
In order to address the above problem, the invention discloses a kind of copy-right protection method of electronic digit information, comprising: electric terminal sends the request of electronic digit download of information to server; Described server adopts encryption key that described electronic digit information is encrypted, and generates first encrypted digital information; Described server is passed to described electric terminal with described first encrypted digital information; Described electric terminal receives and preserves described first encrypted digital information; Described electric terminal judges whether to adopt decruption key that described first encrypted digital information is decrypted, if, then represent the electronic digit information after the employing decruption key is deciphered, or transmit the electronic digit information after the above-mentioned deciphering of satisfying default forwarding conditioned disjunction User Defined forwarding condition.
Preferably, described electric terminal also comprises after server sends electronic digit download of information request step: described server carries out authentication to electric terminal, if authentication is passed through, then carries out subsequent step; Otherwise, process ends.
Preferably, described electric terminal sends in the electronic digit download of information request step to described server, and the content of transmission also comprises encryption key.
Preferably, be provided with encryption chip in the described electric terminal, wherein: described electric terminal also comprises after preserving the described first encrypted digital information step: described encryption chip carries out superencipher with described first encrypted digital information, generates and preserve second encrypted digital information; Described electric terminal employing decruption key also comprises before described first encrypted digital information is decrypted step: described encryption chip is decrypted and restores first encrypted digital information to described second encrypted digital information, if successful decryption then carries out subsequent step; Otherwise, process ends.
Preferably, described encryption key and decruption key are generated by described electric terminal or are signed and issued by authorization center, and described encryption key and decruption key are symmetric key or unsymmetrical key; Described forwarding condition comprises hop count, representing time, cryptoguard or forbid transmitting after transmitting; Described electronic digit information is e-book, multimedia messages, stream media information and/or document information.
According to another preferred embodiment of the present invention, a kind of copyright protecting system of electronic digit information is also disclosed, comprise electric terminal and server, wherein:
Described electric terminal specifically comprises communication unit, data storage cell and application software, and described communication unit is used for sending the request of downloading electronic digit information to described server, and, receive first encrypted digital information that described server sends; Described data storage cell is used to preserve first encrypted digital information that described communication unit receives; First encrypted digital information that described application software is used to adopt decruption key that described data storage cell is preserved is deciphered, and, represent the electronic digit information after the deciphering, or transmit and satisfy the default electronic digit information of transmitting after the conditioned disjunction User Defined is transmitted the above-mentioned deciphering of condition;
Described server specifically comprises database, transmission unit and ciphering unit, and described database is used to preserve electronic digit information; Described transmission unit is used to receive the request of the download electronic digit information that described electric terminal sends and above-mentioned request is passed to described ciphering unit, and first encrypted digital information that described ciphering unit is generated is sent to described electric terminal; Described ciphering unit is used for the download request according to described electric terminal, reads described electronic digit information from described database, and, adopt encryption key that described electronic digit information is encrypted, generate first encrypted digital information.
Preferably, described electric terminal also comprises encryption chip, and described encryption chip is used for described first encrypted digital information is carried out superencipher, generates second encrypted digital information; And, described second encrypted digital information is decrypted, reduction becomes first encrypted digital information.
Preferably, described system also comprises authorization center, is used to described electric terminal and/or server to sign and issue encryption key and decruption key; Wherein, described encryption key and decruption key are symmetric key or unsymmetrical key.
Preferably, the transmission unit of described server also is used for described electric terminal is carried out authentication, if authentication is not passed through, then refuses the download request of described electric terminal.
Preferably, the communication unit of described electric terminal also is used for sending encryption key to described server; The forwarding condition of described electronic digit information comprises hop count, representing time, cryptoguard or forbid transmitting after transmitting.
Preferably, described application software comprises E-book reader, graph image browser, multimedia instrument, DST PLAYER and/or document process program.
According to an also preferred embodiment of the present invention, a kind of electric terminal is disclosed, comprise communication unit, data storage cell and application software, wherein: described communication unit is used for sending the request of downloading electronic digit information to described server, and, receive first encrypted digital information that described server sends; Described data storage cell is used to preserve first encrypted digital information that described communication unit receives; First encrypted digital information that described application software is used for that described data storage cell is preserved adopts decruption key to be decrypted, and, represent the electronic digit information after the deciphering, or transmit and satisfy the default electronic digit information of transmitting after the conditioned disjunction User Defined is transmitted the above-mentioned deciphering of condition.
Preferably, described electric terminal also comprises encryption chip, and described encryption chip is used for the request according to described application software, and described first encrypted digital information is carried out superencipher, generates second encrypted digital information; And, described second encrypted digital information is decrypted, reduction becomes first encrypted digital information.
Preferably, the communication unit of described electric terminal also is used for sending encryption key to described server.
Preferably, described encryption key and decruption key are generated by described electric terminal or are signed and issued by authorization center, and wherein, described encryption key and decruption key are symmetric key or unsymmetrical key; The forwarding condition of described electronic digit information comprises hop count, representing time, cryptoguard or forbid transmitting after transmitting; Described application software comprises E-book reader, graph image browser, multimedia instrument, DST PLAYER and/or document process program.
Compared with prior art, the present invention has the following advantages:
Adopt encryption key that the electronic digit information that will issue or store is encrypted; electric terminal represent or forwarding electronic numerical information before; must adopt decruption key to be decrypted operation to electronic digit information earlier; therefore; have only authorized user could use above-mentioned electronic digit information, can protect the copyright of electronic digit information owner.
Secondly,, can guarantee that the information that the user receives is information that do not distorted, on-demand, guarantee electronic digit transmission of Information safety by the electronic digit information of transmitting is added, deciphers.
The 3rd, the trackability of data transmission is for control electronic digit quality of information provides possibility.
Description of drawings
Fig. 1 is the copy-right protection method first embodiment process flow diagram of electronic digit information of the present invention;
Fig. 2 is the copy-right protection method second embodiment process flow diagram of electronic digit information of the present invention;
Fig. 3 is copy-right protection method the 3rd example structure block diagram of electronic digit information of the present invention;
Fig. 4 is the copyright protecting system first example structure block diagram of electronic digit information of the present invention;
Fig. 5 is the copyright protecting system second example structure block diagram of electronic digit information of the present invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
One of core idea of the present invention is: the encryption key that adopts electronic digit information authorization center to sign and issue is encrypted the electronic digit information that will issue; electric terminal is in play multi-media information; or handle before the relevant documentation information; at first to be decrypted operation to the decruption key that electronic digit information adopts authorization center to sign and issue; thereby guarantee to have only authorized user could use this electronic digit information, for the copyright protection of electronic digit information owner provides technical guarantee.
Method embodiment one:
With reference to Fig. 1, show the copy-right protection method first embodiment process flow diagram of electronic digit information of the present invention, in the present embodiment, adopt encryption chip that the information on the electric terminal is encrypted, this method embodiment specifically comprises the steps:
Step 101: electric terminal is preserved electronic digit information;
Step 102: trigger encryption chip with above-mentioned electronic digit information encryption;
Step 103: encryption chip represents needs or the electronic digit information that satisfies after the encryption of forwarding condition is decrypted;
Step 104: represent the electronic digit information after the deciphering, or transmit the electronic digit information after the deciphering of satisfying the forwarding condition;
Wherein, above-mentioned forwarding condition can set in advance in system or by User Defined; This forwarding condition comprises reading time, the password setting after hop count, the forwarding and forbids transmitting or the like.
In this method embodiment, electronic digit information comprises e-book, multimedia, Streaming Media, daily document etc., and wherein: multimedia messages comprises information such as literal, figure, image, animation, sound and video; Stream media information comprises sound stream (RA, Real Audio), sound or video flowing (RM, Real Media), text flow (RT, Real Text), image stream (RP, Real Photo), animation streams (as: the multiple data type comprehensive Design file that SMIL-is synchronous, the real flash of SWF-Micromedia and shockwaveflash animation file etc.) and, the Streaming Media meta file (RAM, Real Metafile) of the URL address of files such as RA, RM, SMIL comprised; Daily document information comprises files such as txt, html, doc, xls, ppt, pdf.The source of above-mentioned information can be to preserve above-mentioned electronic digit database of information, also can be carriers such as the disk of preserving above-mentioned electronic digit information, CD, can also be webserver that can provide Streaming Media etc.
Accordingly, the application program that electric terminal is handled above-mentioned electronic digit information comprises E-book reader, multimedia instrument, DST PLAYER (Real Player) and daily document process instrument, and wherein: the multimedia instrument comprises graph image browser, voice playing instrument, video playback instrument etc.; The document process instrument comprises text-processing instrument, browser, Office software, Acrobat etc.
Method embodiment two:
With reference to Fig. 2, show the copy-right protection method second embodiment process flow diagram of electronic digit information of the present invention, this method embodiment realizes the adding of the information that will propagate, decrypting process are specifically comprised with software mode:
Step 201: electric terminal sends the request of electronic digit download of information to server;
Step 202: server carries out authentication to electric terminal, if authentication is passed through, then changes step 203; Otherwise, direct process ends;
Step 203: server adopts encryption key that above-mentioned electronic digit information is encrypted;
Step 204: the electronic digit information after server will be encrypted is passed to electric terminal;
Step 205: electric terminal receives and preserves the electronic digit information after the above-mentioned encryption;
Step 206: the electronic digit information after electric terminal judges whether to adopt decruption key to above-mentioned encryption is decrypted, if then change step 207; Otherwise, direct process ends;
Step 207: represent the electronic digit information after the deciphering, or transmit the electronic digit information after the deciphering of satisfying the forwarding condition.
For add, decruption key, can adopt symmetric key, promptly add, decruption key is identical; Also can adopt unsymmetrical key, promptly add, the decruption key difference, one is PKI (Public Key), and one is private key (Private Key).In this method embodiment, convenient for key management, preferably adopt unsymmetrical key, promptly encryption key and decruption key adopt PKI and private key respectively; In another preferred embodiment of this method embodiment, electric terminal is when sending the request of electronic digit download of information, send encryption key (PKI) simultaneously, server does not need to obtain the encryption key (PKI) that authorization center is signed and issued, thereby, make server further to have increased the dirigibility of system deployment by third-party operator's independent operation.
Method embodiment three:
With reference to Fig. 3, show copy-right protection method the 3rd embodiment process flow diagram of electronic digit information of the present invention, in the present embodiment, electric terminal includes encryption chip, realizes the information that will propagate is encrypted with way of hardware and software combination; Above-mentioned enciphered message must be adopted to carry out and to carry out operations such as reading, modification, forwarding after secondary is deciphered, thereby the further safety of guarantee information, guarantee to have only authorized user could handle above-mentioned information, guarantee for the copyright of information owner provides more reliably; This method specifically comprises the steps:
Step 301: electric terminal sends the request of electronic digit download of information to server;
Step 302: server adopts encryption key that above-mentioned electronic digit information is encrypted, and generates first encrypted digital information;
Step 303: server is passed to electric terminal with above-mentioned first encrypted digital information;
Step 304: electric terminal receives and preserves above-mentioned first encrypted digital information;
Step 305: trigger encryption chip first encrypted digital information is carried out superencipher, generate and preserve second encrypted digital information;
Step 306: encryption chip represents needs or second encrypted digital information that satisfies the forwarding condition is reduced to first encrypted digital information;
Step 307: electric terminal judges whether to adopt decruption key that above-mentioned first encrypted digital information is decrypted, if then change step 308; Otherwise, direct process ends;
Step 308: represent the electronic digit information after the deciphering, or transmit the electronic digit information after the deciphering of satisfying the forwarding condition.
In the preferred embodiment of this method embodiment, for managing and implementing conveniently, encryption key and decruption key preferably adopt unsymmetrical key, and promptly server adopts PKI (encryption key) to encrypt, and electric terminal adopts private key (decruption key) that first encrypted digital information is decrypted.
For aforesaid each method embodiment, simple in order to describe, so it all is expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not subjected to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art should know that also said method embodiment all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.
System embodiment one:
With reference to figure 4, show the copyright protecting system first example structure block diagram of electronic digit information of the present invention, specifically comprise:
Electric terminal 41: specifically comprise data transmission interface 411, data storage cell 412, encryption chip 414 and application software 413; Wherein, data transmission interface 411 is used for reading electronic digit information from information source 42; Data storage cell 412 is used to preserve the electronic digit information that data transmission interface 411 reads; Electronic digit information after the encryption that application software 413 is used for data storage cell 412 is preserved, adopt decruption key to be decrypted, and the electronic digit information after will decipher shows, or the electronic digit information after the deciphering of forwarding condition is satisfied in forwarding; Encryption chip 414 is used for encrypting according to the electronic digit information that data storage cell 412 is preserved in the request of application software 413, or the electronic digit information after the above-mentioned encryption is decrypted.
Information source 42: be used to electric terminal 41 that electronic digit information is provided;
Wherein, information source 42 can be a database, can be the carrier that disk, CD etc. can be preserved information such as e-book, multimedia, text, common document also, can also be the webserver that streaming medium content can be provided.
Authorization center 43: be used to electric terminal 41 to sign and issue encryption key and decruption key;
Wherein, authorization center 43 can be with online mode, also can be with the offline mode electric terminal 41 provide add, decruption key; Need to prove that authorization center 43 can be an independently information security management mechanism, also can be used as a separate unit of electric terminal 41, by electric terminal 41 part-time execution.
For add, manner of decryption, can adopt symmetric key, promptly add, decruption key is identical; Also can adopt unsymmetrical key, promptly add, the decruption key difference, one is PKI, and one is private key.In native system embodiment, be convenient management, preferably adopt symmetric key, i.e. it is identical that the encryption key of encryption chip 414 employings adopts decruption keys with application software 413.
System embodiment two:
With reference to figure 5, show the copyright protecting system second example structure block diagram of electronic digit information of the present invention, specifically comprise:
Electric terminal 51: specifically comprise communication unit 510, data storage cell 512, application software 513 and encryption chip 514; Wherein, communication unit 510 is used for sending the request of downloading electronic digit information to server 52, and, first encrypted digital information that reception server 52 transmits; Data storage cell 512 is used to preserve first encrypted digital information that communication unit 510 receives; Application software 513 is used for to encryption chip 514 transmissions second encrypted digital information deciphering and reduces becoming the request of first encrypted digital information; Then, adopt the first encrypted digital information deciphering of decruption key with above-mentioned reduction, and, the electronic digit information after the deciphering is shown, or transmit electronic digit information after the deciphering of satisfying the forwarding condition; Encryption chip 514 is used for according to the request of application software 513 first encrypted digital information being carried out superencipher, generates second encrypted digital information, or, needs are represented or second encrypted digital information deciphering reduction of transmitting becomes first encrypted digital information;
Server 52: specifically comprise database 523, transmission unit 521 and ciphering unit 522; Wherein, database 523 is used for store electrons numerical information; Transmission unit 521 is used to receive the request of the download electronic digit information that electric terminal 51 sends, and above-mentioned request is passed to ciphering unit 522, and first encrypted digital information that ciphering unit 522 is generated is sent to electric terminal 51; Ciphering unit 522 is used for the download request according to transmission unit 521, reads the electronic digit information that electric terminal needs from database 523, and, adopt encryption key that above-mentioned electronic digit information is encrypted, generate first encrypted digital information.
Authorization center 53: be used to electric terminal 51 or server 52 to sign and issue encryption key and decruption key;
Wherein, authorization center 53 can be with online mode, also can be with the offline mode electric terminal 51 or server 52 provide add, decruption key; Authorization center 53 can be an independently information security management mechanism, also can be used as a separate unit of electric terminal 51 or server 52, and by electric terminal 51 or server 52 part-time execution, the present invention program does not do special restriction.
In the preferred embodiment of native system embodiment, for managing and implementing conveniently, encryption key and decruption key preferably adopt unsymmetrical key, the ciphering unit 522 that is server 52 adopts PKI (encryption key) to encrypt, and the application software 513 of electric terminal 51 adopts private key (decruption key) that first encrypted digital information is decrypted.
In another preferred embodiment of present embodiment, the communication unit 510 of electric terminal 51 is when sending the request of electronic digit download of information, send encryption key simultaneously, server 52 does not need to obtain the encryption key that authorization center 53 is signed and issued, thereby, make server 52 further to have increased the dirigibility of system deployment by third-party operator's independent operation.
In an also preferred embodiment of present embodiment, the transmission unit 521 of server 52 also is used for described electric terminal is carried out authentication, if authentication is not passed through, then refuses the download request of electric terminal 51; Thereby, the transfer means of control information can further be provided.
Electric terminal embodiment one:
The invention discloses a kind of electric terminal example, with reference to Fig. 4, electric terminal 41 parts wherein show the structured flowchart of this electric terminal, include encryption chip 414 in this electric terminal, can encrypt the information that is kept in this electric terminal; The user is when reading, revising or transmitting above-mentioned information, application software 413 must at first ask encryption chip 414 to be decrypted and could to carry out, to guarantee having only authorized user just can handle above-mentioned information, also guaranteed to be kept at the safety of the data message on this electric terminal; This electric terminal specifically comprises:
Data transmission interface 411: be used for reading electronic digit information from information source;
Wherein, this electronic digit information can be e-book, multimedia, Streaming Media, common document etc.; Information source can be to preserve above-mentioned electronic digit database of information, also can be carriers such as the disk of preserving above-mentioned electronic digit information, CD, can also be the webserver that Streaming Media can be provided;
Data storage cell 412: be used to preserve that data transmission interface 411 reads, the electronic digit information after encryption chip 414 is encrypted;
Application software 413: electronic digit information, request encryption chip after the encryption that is used for data storage cell 412 is preserved are decrypted, and, electronic digit information after the deciphering is shown, and the electronic digit information that maybe will satisfy after the deciphering of forwarding condition forwards;
Wherein, according to the difference of electronic digit information, application program 413 can be E-book reader, audio player, video player, Office software, Acrobat etc.
Encryption chip 414: be used for encrypting, or the electronic digit information after the above-mentioned encryption is decrypted according to the electronic digit information that data storage cell 412 is preserved in the request of application software 413.
Electric terminal embodiment two:
The invention also discloses another electric terminal example, with reference to Fig. 5, electric terminal 51 parts wherein show the structured flowchart of this electric terminal, and this electric terminal specifically comprises:
Communication unit 510: be used for sending the request of downloading electronic digit information to server, and, first encrypted digital information that reception server transmits;
Data storage cell 512: be used to preserve first encrypted digital information that communication unit 510 receives, and second encrypted digital information that behind encryption chip 514 superenciphers, generates;
Application software 513: be used for the second encrypted digital information request encryption chip 514 that data storage cell 512 is preserved is decrypted, reduction becomes first encrypted digital information; Then, adopt decruption key that above-mentioned first encrypted digital information is deciphered, and, the electronic digit information after the deciphering is shown;
Encryption chip 514: be used for first encrypted digital information is carried out superencipher according to the request of application software 513, generate second encrypted digital information, and, with above-mentioned second encrypted digital information reduction becoming, first encrypted digital information.
What the data of this electric terminal were preserved unit 512 preservations is after server is encrypted for the first time, electronic digit information behind encryption chip 512 superenciphers, therefore, application software 513 must be to carrying out operations such as reading, modification, forwarding after the above-mentioned information and executing secondary deciphering, thereby the further safety of guarantee information, guarantee to have only authorized user could handle above-mentioned information, guarantee for the copyright of information owner provides more reliably.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For system of the present invention and electric terminal embodiment, because it is similar substantially to method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
More than to the copy-right protection method and the system of a kind of electronic digit information provided by the present invention, and, a kind of electric terminal is described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. the copy-right protection method of an electronic digit information is characterized in that, comprising:
Electric terminal sends the request of electronic digit download of information to server;
Described server adopts encryption key that described electronic digit information is encrypted, and generates first encrypted digital information;
Described server is passed to described electric terminal with described first encrypted digital information;
Described electric terminal receives and preserves described first encrypted digital information;
Described electric terminal judges whether to adopt decruption key that described first encrypted digital information is decrypted, if, then represent the electronic digit information after the employing decruption key is deciphered, or transmit the electronic digit information after the above-mentioned deciphering of satisfying default forwarding conditioned disjunction User Defined forwarding condition.
2. the method for claim 1 is characterized in that:
Described electric terminal also comprises after server sends electronic digit download of information request step: described server carries out authentication to electric terminal, if authentication is passed through, then carries out subsequent step; Otherwise, process ends;
And/or,
Described electric terminal sends in the electronic digit download of information request step to described server, and the content of transmission also comprises encryption key.
3. method as claimed in claim 1 or 2 is characterized in that, is provided with encryption chip in the described electric terminal, wherein:
Described electric terminal also comprises after preserving the described first encrypted digital information step: described encryption chip carries out superencipher with described first encrypted digital information, generates and preserve second encrypted digital information;
Described electric terminal employing decruption key also comprises before described first encrypted digital information is decrypted step: described encryption chip is decrypted and restores first encrypted digital information to described second encrypted digital information, if successful decryption then carries out subsequent step; Otherwise, process ends.
4. method as claimed in claim 3 is characterized in that:
Described encryption key and decruption key are generated by described electric terminal or are signed and issued by authorization center, and described encryption key and decruption key are symmetric key or unsymmetrical key;
Described forwarding condition comprises hop count, representing time, cryptoguard or forbid transmitting after transmitting;
Described electronic digit information is e-book, multimedia messages, stream media information and/or document information.
5. the copyright protecting system of an electronic digit information is characterized in that, described system comprises electric terminal and server, wherein:
Described electric terminal specifically comprises communication unit, data storage cell and application software, and described communication unit is used for sending the request of downloading electronic digit information to described server, and, receive first encrypted digital information that described server sends; Described data storage cell is used to preserve first encrypted digital information that described communication unit receives; First encrypted digital information that described application software is used to adopt decruption key that described data storage cell is preserved is deciphered, and, represent the electronic digit information after the deciphering, or transmit and satisfy the default electronic digit information of transmitting after the conditioned disjunction User Defined is transmitted the above-mentioned deciphering of condition;
Described server specifically comprises database, transmission unit and ciphering unit, and described database is used to preserve electronic digit information; Described transmission unit is used to receive the request of the download electronic digit information that described electric terminal sends and above-mentioned request is passed to described ciphering unit, and first encrypted digital information that described ciphering unit is generated is sent to described electric terminal; Described ciphering unit is used for the download request according to described electric terminal, reads described electronic digit information from described database, and, adopt encryption key that described electronic digit information is encrypted, generate first encrypted digital information.
6. system as claimed in claim 5 is characterized in that described electric terminal also comprises encryption chip, and described encryption chip is used for described first encrypted digital information is carried out superencipher, generates second encrypted digital information; And, described second encrypted digital information is decrypted, reduction becomes first encrypted digital information.
7. system as claimed in claim 5 is characterized in that:
Described system also comprises authorization center, is used to described electric terminal and/or server to sign and issue encryption key and decruption key; Wherein, described encryption key and decruption key are symmetric key or unsymmetrical key;
And/or,
The transmission unit of described server also is used for described electric terminal is carried out authentication, if authentication is not passed through, then refuses the download request of described electric terminal;
And/or,
The communication unit of described electric terminal also is used for sending encryption key to described server; The forwarding condition of described electronic digit information comprises hop count, representing time, cryptoguard or forbid transmitting after transmitting;
And/or,
Described application software comprises E-book reader, graph image browser, multimedia instrument, DST PLAYER and/or document process program.
8. an electric terminal is characterized in that, comprises communication unit, data storage cell and application software, wherein:
Described communication unit is used for sending the request of downloading electronic digit information to described server, and, receive first encrypted digital information that described server sends;
Described data storage cell is used to preserve first encrypted digital information that described communication unit receives;
First encrypted digital information that described application software is used for that described data storage cell is preserved adopts decruption key to be decrypted, and, represent the electronic digit information after the deciphering, or transmit and satisfy the default electronic digit information of transmitting after the conditioned disjunction User Defined is transmitted the above-mentioned deciphering of condition.
9. electric terminal as claimed in claim 8 is characterized in that:
Described electric terminal also comprises encryption chip, and described encryption chip is used for the request according to described application software, and described first encrypted digital information is carried out superencipher, generates second encrypted digital information; And, described second encrypted digital information is decrypted, reduction becomes first encrypted digital information;
And/or
The communication unit of described electric terminal also is used for sending encryption key to described server.
10. electric terminal as claimed in claim 8 or 9 is characterized in that:
Described encryption key and decruption key are generated by described electric terminal or are signed and issued by authorization center; Wherein, described encryption key and decruption key are symmetric key or unsymmetrical key;
The forwarding condition of described electronic digit information comprises hop count, representing time, cryptoguard or forbid transmitting after transmitting;
Described application software comprises E-book reader, graph image browser, multimedia instrument, DST PLAYER and/or document process program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009102480708A CN102117395A (en) | 2009-12-31 | 2009-12-31 | Electronic digital information copyright protection method and system as well as electronic terminal |
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| CN2009102480708A CN102117395A (en) | 2009-12-31 | 2009-12-31 | Electronic digital information copyright protection method and system as well as electronic terminal |
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| CN102117395A true CN102117395A (en) | 2011-07-06 |
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| CN2009102480708A Pending CN102117395A (en) | 2009-12-31 | 2009-12-31 | Electronic digital information copyright protection method and system as well as electronic terminal |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102694794A (en) * | 2012-05-06 | 2012-09-26 | 北京深思洛克软件技术股份有限公司 | Scene information protection method used for Android application program |
| WO2013053079A1 (en) * | 2011-10-10 | 2013-04-18 | 厦门简帛信息科技有限公司 | Digital file encryption method |
| CN103117851A (en) * | 2011-11-17 | 2013-05-22 | 银视通信息科技有限公司 | Encryption control method and device capable of achieving tamper-proofing and repudiation-proofing by means of public key infrastructure (PKI) |
| CN104252583A (en) * | 2013-06-27 | 2014-12-31 | 深圳富泰宏精密工业有限公司 | Digital copyright processing system and method |
| CN104426902A (en) * | 2013-08-26 | 2015-03-18 | 数位行动科技股份有限公司 | Digital content encoding and decoding system and digital content encoding and decoding method |
| CN104836796A (en) * | 2015-04-14 | 2015-08-12 | 百度在线网络技术（北京）有限公司 | Method and apparatus for acquiring network content information |
| CN107070856A (en) * | 2015-12-16 | 2017-08-18 | 尤尼因弗株式会社 | Encryption/decryption speed improvement method of encryption is applied compoundly |
| CN108171019A (en) * | 2018-01-12 | 2018-06-15 | 陈征宇 | Anti-counterfeit authentication method, fake certification system, fake certification equipment and storage medium |
| CN108683925A (en) * | 2018-05-15 | 2018-10-19 | 北京首汽智行科技有限公司 | A kind of player system and video sharing method based on block chain technology |
| CN108959523A (en) * | 2018-06-28 | 2018-12-07 | 北京首汽智行科技有限公司 | A kind of method for playing music and player based on block chain technology |
| CN109151526A (en) * | 2018-09-30 | 2019-01-04 | 深圳市元征科技股份有限公司 | A kind of video transmission method, system, equipment and computer readable storage medium |
| CN110069903A (en) * | 2019-04-28 | 2019-07-30 | 腾讯科技（上海）有限公司 | A kind of method and device of the determining user for consulting text data |
| CN110348177A (en) * | 2018-04-03 | 2019-10-18 | 福建省天奕网络科技有限公司 | The copy-right protection method and its system of media file |
| CN110414192A (en) * | 2019-06-14 | 2019-11-05 | 伊格拉斯控股有限公司 | Keyholed back plate system and method applied to safe manufacturing |
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| CN1955971A (en) * | 2005-10-27 | 2007-05-02 | 北京振戎融通通信技术有限公司 | Safety installation method suitable for Java application program |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013053079A1 (en) * | 2011-10-10 | 2013-04-18 | 厦门简帛信息科技有限公司 | Digital file encryption method |
| US9699147B2 (en) | 2011-10-10 | 2017-07-04 | Xiamen Geeboo Information Technology Co. Ltd. | Method for encrypting digital file |
| CN103117851A (en) * | 2011-11-17 | 2013-05-22 | 银视通信息科技有限公司 | Encryption control method and device capable of achieving tamper-proofing and repudiation-proofing by means of public key infrastructure (PKI) |
| CN102694794B (en) * | 2012-05-06 | 2016-05-04 | 北京深思数盾科技股份有限公司 | A kind of scene information guard method for Android application program |
| CN102694794A (en) * | 2012-05-06 | 2012-09-26 | 北京深思洛克软件技术股份有限公司 | Scene information protection method used for Android application program |
| CN104252583A (en) * | 2013-06-27 | 2014-12-31 | 深圳富泰宏精密工业有限公司 | Digital copyright processing system and method |
| CN104426902A (en) * | 2013-08-26 | 2015-03-18 | 数位行动科技股份有限公司 | Digital content encoding and decoding system and digital content encoding and decoding method |
| CN104836796A (en) * | 2015-04-14 | 2015-08-12 | 百度在线网络技术（北京）有限公司 | Method and apparatus for acquiring network content information |
| CN107070856A (en) * | 2015-12-16 | 2017-08-18 | 尤尼因弗株式会社 | Encryption/decryption speed improvement method of encryption is applied compoundly |
| CN108171019A (en) * | 2018-01-12 | 2018-06-15 | 陈征宇 | Anti-counterfeit authentication method, fake certification system, fake certification equipment and storage medium |
| CN108171019B (en) * | 2018-01-12 | 2021-08-03 | 深圳芯易德科技有限公司 | Anti-counterfeiting verification method, anti-counterfeiting verification system, anti-counterfeiting verification device and storage medium |
| CN110348177A (en) * | 2018-04-03 | 2019-10-18 | 福建省天奕网络科技有限公司 | The copy-right protection method and its system of media file |
| CN110348177B (en) * | 2018-04-03 | 2022-06-07 | 福建省天奕网络科技有限公司 | Copyright protection method and system for media file |
| CN108683925A (en) * | 2018-05-15 | 2018-10-19 | 北京首汽智行科技有限公司 | A kind of player system and video sharing method based on block chain technology |
| CN108959523A (en) * | 2018-06-28 | 2018-12-07 | 北京首汽智行科技有限公司 | A kind of method for playing music and player based on block chain technology |
| CN109151526A (en) * | 2018-09-30 | 2019-01-04 | 深圳市元征科技股份有限公司 | A kind of video transmission method, system, equipment and computer readable storage medium |
| CN110069903A (en) * | 2019-04-28 | 2019-07-30 | 腾讯科技（上海）有限公司 | A kind of method and device of the determining user for consulting text data |
| CN110069903B (en) * | 2019-04-28 | 2023-03-21 | 腾讯科技（上海）有限公司 | Method and device for determining user for looking up text data |
| CN110414192A (en) * | 2019-06-14 | 2019-11-05 | 伊格拉斯控股有限公司 | Keyholed back plate system and method applied to safe manufacturing |
| CN110414192B (en) * | 2019-06-14 | 2023-09-26 | 尚承科技股份有限公司 | Control and management system and method applied to safety manufacture |
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Application publication date: 20110706 |