CN101251880A - System and method for protecting digital data using electronic key - Google Patents
System and method for protecting digital data using electronic key Download PDFInfo
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- CN101251880A CN101251880A CNA2008100177909A CN200810017790A CN101251880A CN 101251880 A CN101251880 A CN 101251880A CN A2008100177909 A CNA2008100177909 A CN A2008100177909A CN 200810017790 A CN200810017790 A CN 200810017790A CN 101251880 A CN101251880 A CN 101251880A
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- electron key
- deciphering unit
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Abstract
The invention relates to a system for protecting digital data through using electronic key and a method thereof, which is used for avoiding digital content to be pirated. The system for protecting digital data at least consists of an electronic key and a supply terminal, wherein the electronic key is provided with a first encryption / decryption unit and sequence codes; the supply terminal is provided with a second encryption / decryption unit corresponding to the first encryption / decryption unit and digital contents; the sequence codes provided by the electronic key allow the second encryption / decryption unit of the supply terminal to encrypt the digital contents according to the sequence codes, and the first encryption / decryption unit of the electronic key decrypts the encrypted digital contents according to the sequence codes.
Description
Technical field
The present invention relates to a kind of electron key protection digital data system and method thereof utilized, especially a kind of use has the electron key of hot-plug interface, with the system and the method thereof of the legitimacy of digital content in the identification electronic installation.
Background technology
At present, for book contents, be to duplicate its content mostly with the mode of xeroxing.The content of image, connection music knowledge class is then to duplicate its content with the mode of video-tape and audiotape.These two kinds of copy modes can be many more along with the number of times that duplicates, and make former meaningful quality deterioration.Along with the evolution of electronic digitalizing technology, no matter be books or image or music reproduction more repeatedly its quality still and original the same, so also ardent day by day for the requirement of diversified digital content.
The intellectual property protection that relevant digital content is relevant is not set up perfect as yet.When the user buys a cover digital product, can back up voluntarily in case of need for fear of damage, this is legal behavior.Just as all soft ware authorization rules, the user can duplicate.But all digital content dealers only wish only to have a user to use its digital content at one time.Just look like to be that books are the same, the user has bought a book and can lend many people and see, but, the notion that can only have a people to read at one time is the same, that is to say that the digital content that the user duplicates can be used in the different carriers broadcast, but the dealer wishes to have a digital content to be viewed and admired by the user at one time again.This is present digital content user, and how going avoiding digital product to be replicated and protecting its intellecture property is that the user pays close attention to; And the user has been spent the digital content that money bought, how to ensure that its assets security also is extremely important.But the dealer just in time conflicts mutually with the idea between the user.If can allow the user duplicate easily, just cannot say for sure that the digital content delivery that the user can not duplicate it gives other people.Because intellecture property is fragile for the physical protection of digital content, as allow not reproducible of user, then can't ensure the assets of its digital content of buying again the user.Current; property right problem between digital content dealer's solution and the user; with regard to prior art; for example use sequence code collocation digital content CD to peddle together to the user; when the digital content discs together flows out together with sequence code like this, just do not existed for its digital content CD protecting, or the person of banning use of duplicates the digital content CD; but just in case the user damages the digital content CD or scratch, the user must spend a money to buy the digital content CD again again again.And; digital content disk sheet is recognized the board sequence number; but it is also inconvenient to the user to limit the medium carrier; for same a digital content discs; the user may wish to view and admire with different carriers in the time of difference; or as books or CD sheet lend others (nobody borrows others' CD also will borrow together with sound equipment), therefore, this guard method is just unworkable.Therefore, how to overcome of the protection of present technology, and can take into account simultaneously between digital content feed end and user rights and interests between the two again, for what current digital contents industry person expected earnestly for digital content.
Summary of the invention
The above-mentioned technical matters of the present invention for existing in the solution background technology, and a kind of electron key protection digital data system and method thereof utilized is provided.
Technical solution of the present invention is: electron key system proposed by the invention, and its special character is: comprise electron key, have the first enciphering/deciphering unit and a sequence code; Feed end has second enciphering/deciphering unit and the digital content corresponding with the first enciphering/deciphering unit; Wherein, by the sequence code that electron key provides, the second enciphering/deciphering unit of feed end is encrypted to digital content according to sequence code, the described first enciphering/deciphering unit of electron key is decrypted encrypted digital content with sequence code.
Above-mentioned digital content comprises and is audio-visual multimedia file, e-book, computer game or digital decrypted index.
Above-mentioned digital decrypted index is used for opening described audio-visual multimedia file, e-book or computer game.
Above-mentioned electron key has hot-plug interface, and is included as general-purpose serial bus (USB) interface or IEEE1394 interface.
Above-mentioned first enciphering/deciphering unit or the described second enciphering/deciphering unit and storing media link, and storing media has the enciphering/deciphering program.
Above-mentioned first enciphering/deciphering unit or the described second enciphering/deciphering unit have RSA mechanism chip.
The numerical data guard method of electron key of the present invention, its special character is: the method includes the steps of:
1) provide electron key with the first enciphering/deciphering unit and a sequence code;
2) send described sequence code to feed end, feed end has second enciphering/deciphering unit and the digital content corresponding with the described first enciphering/deciphering unit;
3) according to sequence code described digital content is encrypted;
4) send the described digital content encrypted to electron key;
5) utilize the described first enciphering/deciphering unit of electron key, the described digital content of having encrypted is decrypted with sequence code.
Above-mentioned digital content comprises and is audio-visual multimedia file, e-book, computer game or digital decrypted index.
Above-mentioned digital decrypted index is used for opening described audio-visual multimedia file, e-book or described computer game.
Above-mentioned electron key has hot-plug interface, and is included as general-purpose serial bus (USB) interface or IEEE1394 interface.
Above-mentioned first enciphering/deciphering unit or the described second enciphering/deciphering unit and storing media link, and storing media has the enciphering/deciphering program.
The above-mentioned first enciphering/deciphering unit or this second enciphering/deciphering unit have RSA mechanism chip.
Electron key and the second enciphering/deciphering unit with first enciphering/deciphering unit correspondence of correspondence and the feed end of digital content of the present invention by having the first enciphering/deciphering unit and a sequence code, avoid digital content by pirate, its security is good, and is easy to use.
Description of drawings
Fig. 1 utilizes the block schematic diagram of the numerical data protection system of electron key for showing the present invention;
Fig. 2 is for showing the block schematic diagram of electron key of the present invention;
Fig. 3 shows the numerical data guard method process flow diagram that utilizes electron key of the present invention.
Wherein, the numerical data protection system of 1-electron key, 11-electron key, 111-sequence code; the 112-first enciphering/deciphering unit, 113-storing media, 1131-add/separate program, the 114-transmission interface; the 12-feed end, the 121-second enciphering/deciphering unit, 122-numerical digit content.
Embodiment
Referring to Fig. 1, electron key numerical data protection system 1 comprises electron key 11 and feed end 12.Wherein, electron key 11 has the first enciphering/deciphering unit 112 and a sequence code 111.Feed end 12 has second enciphering/deciphering unit 121 and the digital content 122 corresponding with the first enciphering/deciphering unit 112.The sequence code 111 that provides according to electron key 11, the second enciphering/deciphering unit 121 of feed end 12 is encrypted according to 111 pairs of digital contents 122 of sequence code, and the first enciphering/deciphering unit 112 of electron key 11 will be decrypted with 111 pairs of sequence codes encrypted digital content 122.
The first enciphering/deciphering unit 112 or the second enciphering/deciphering unit 121 link with storing media 113, and then this storing media 113 has enciphering/deciphering program 113.
Referring to Fig. 2, electron key 11 is used for avoiding a digital content 122 by pirate, comprises storing media 113, enciphering/deciphering program 1131, sequence code 111, enciphering/deciphering unit 112 and transmission interface 114.Wherein, enciphering/deciphering program 1131 and sequence code 111 are stored in the storing media 113.Then, enciphering/deciphering unit 112 is carried out 1131 pairs of sequence codes that sent 111 of enciphering/deciphering program and is encrypted, or the encrypted digital content 122 that is received is decrypted with sequence code 111.At last, transmission interface 114 is used for sending or receiving the sequence code 111 of having encrypted or receives the numerical digit content 122 of having encrypted.
Referring to Fig. 3, the numerical data guard method of described electron key comprises following step:
(S31) provide electron key, it has first enciphering/deciphering unit and the sequence code;
(S32) send sequence code to feed end, this feed end has second enciphering/deciphering unit and the digital content corresponding with the first enciphering/deciphering unit;
(S33) according to sequence code digital content is encrypted;
(S34) send encrypted digital content to electron key;
(S35) utilize the first enciphering/deciphering unit of electron key, encrypted digital content is decrypted with the preface sign indicating number.
Claims (10)
1, a kind of numerical data protection system of utilizing electron key is used to avoid digital content by pirate, it is characterized in that: this numerical data protection system comprises:
Electron key has the first enciphering/deciphering unit and a sequence code;
Feed end has second enciphering/deciphering unit and the digital content corresponding with the first enciphering/deciphering unit;
Wherein, by the sequence code that electron key provides, the second enciphering/deciphering unit of feed end is encrypted to digital content according to sequence code, the first enciphering/deciphering unit of electron key is decrypted encrypted digital content with sequence code.
2, the numerical data protection system of utilizing electron key according to claim 1, it is characterized in that: described digital content comprises audio-visual multimedia file, e-book, computer game or digital decrypted index.
3, the numerical data protection system of utilizing electron key according to claim 2, it is characterized in that: described digital decrypted index is used for opening audio-visual multimedia file, e-book or computer game.
4, the numerical data protection system of utilizing electron key according to claim 1, it is characterized in that: described electron key has hot-plug interface, and comprises USB interface or IEEE 1394 interfaces.
5, the numerical data protection system of utilizing electron key according to claim 1 is characterized in that: the described first enciphering/deciphering unit or the second enciphering/deciphering unit and storing media link, and described storing media has the enciphering/deciphering program.
6, the numerical data protection system of utilizing electron key according to claim 1 is characterized in that: the described first enciphering/deciphering unit or the second enciphering/deciphering unit have RSA mechanism chip.
7, a kind of numerical data guard method that utilizes electron key is used to avoid a digital content by pirate, it is characterized in that: this numerical data guard method comprises following steps:
1) provides electron key, have first enciphering/deciphering unit and the sequence code;
2) send described sequence code to feed end, described feed end has second enciphering/deciphering unit and the digital content corresponding with the first enciphering/deciphering unit;
3) according to sequence code digital content is encrypted;
4) send encrypted digital content to electron key;
5) utilize the first enciphering/deciphering unit of electron key, encrypted digital content is decrypted with sequence code.
8, the numerical data guard method that utilizes electron key according to claim 7, it is characterized in that: described electron key has hot-plug interface, and comprises USB interface or IEEE 1394 interfaces.
9, the numerical data guard method that utilizes electron key according to claim 7 is characterized in that: described first enciphering/deciphering unit or the described second enciphering/deciphering unit and storing media link, and described storing media has the enciphering/deciphering program.
10, the numerical data guard method that utilizes electron key according to claim 7 is characterized in that: the described first enciphering/deciphering unit or the second enciphering/deciphering unit have RSA mechanism chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100177909A CN101251880B (en) | 2008-03-25 | 2008-03-25 | System and method for protecting digital data using electronic key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100177909A CN101251880B (en) | 2008-03-25 | 2008-03-25 | System and method for protecting digital data using electronic key |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101251880A true CN101251880A (en) | 2008-08-27 |
| CN101251880B CN101251880B (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100177909A Expired - Fee Related CN101251880B (en) | 2008-03-25 | 2008-03-25 | System and method for protecting digital data using electronic key |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314826A (en) * | 2010-06-30 | 2012-01-11 | 联咏科技股份有限公司 | Electronic device, display driving device and method for displaying digital content |
| US8098825B2 (en) | 2008-06-30 | 2012-01-17 | Condel International Technologies Inc. | Method and system for enhancing data encryption using multiple-key lists |
| CN101727941B (en) * | 2008-10-24 | 2013-01-16 | 英属开曼群岛商康帝国际科技股份有限公司 | Method and system for hiding decryption key in distributed way |
| US8850222B2 (en) | 2010-06-22 | 2014-09-30 | Novatek Microelectronics Corp. | Electronic apparatus, display driving apparatus, and digital content display method thereof |
-
2008
- 2008-03-25 CN CN2008100177909A patent/CN101251880B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8098825B2 (en) | 2008-06-30 | 2012-01-17 | Condel International Technologies Inc. | Method and system for enhancing data encryption using multiple-key lists |
| CN101727941B (en) * | 2008-10-24 | 2013-01-16 | 英属开曼群岛商康帝国际科技股份有限公司 | Method and system for hiding decryption key in distributed way |
| US8850222B2 (en) | 2010-06-22 | 2014-09-30 | Novatek Microelectronics Corp. | Electronic apparatus, display driving apparatus, and digital content display method thereof |
| CN102314826A (en) * | 2010-06-30 | 2012-01-11 | 联咏科技股份有限公司 | Electronic device, display driving device and method for displaying digital content |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101251880B (en) | 2011-07-20 |
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