CN101272239A - Digital content safety control method, software and hardware device - Google Patents
Digital content safety control method, software and hardware device Download PDFInfo
- Publication number
- CN101272239A CN101272239A CNA2007100645285A CN200710064528A CN101272239A CN 101272239 A CN101272239 A CN 101272239A CN A2007100645285 A CNA2007100645285 A CN A2007100645285A CN 200710064528 A CN200710064528 A CN 200710064528A CN 101272239 A CN101272239 A CN 101272239A
- Authority
- CN
- China
- Prior art keywords
- digital content
- playback terminal
- encryption
- key
- safe
- 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.)
- Pending
Links
Landscapes
- Storage Device Security (AREA)
Abstract
The invention discloses a digital content safety management method which is characterized by consisting of a digital content, an encryption server, an authorization key, a storage medium and a safety playing terminal. The encryption server can be legally logged through the authorization key to select an encryption flow; an encryption arithmetic is used for calculating the implement key, the digital content and the encryption parameters to generate the digital content of a cryptograph and add an explanation field and a checking field. The explanation field comprises an encryption flow number, an encryption arithmetic number, a mark sequence number, the type of the play terminal, an encryption key number and a play condition corresponding to the digital content of the cryptograph. The invention also discloses a safe digital player.
Description
Technical field
The present invention relates to a kind of digital content safety control method, software and hardware unit.
Background technology
Present digital content safety control, function and fail safe are very limited, and online system needs the real time access security server, and it is too much to occupy resource; The system of off-line can only simply authenticate, and can not realize toll administration flexibly.
Summary of the invention
The present invention overcomes the shortcoming of prior art, a kind of digital content safety control method is provided, it is characterized in that, by digital content, encryption server, authorized key, storage medium and safe playback terminal are formed, can legal login encryption server by authorized key, artificial selection or select encryption flow automatically is according to encryption flow, artificial selection or select cryptographic algorithm automatically, artificial selection or be chosen as identifier that digital content arranges automatically number as encryption parameter, artificial selection allow the type of playback terminal of deciphering as key parameter, artificial selection or select encryption key that key parameter is done computing automatically to generate and carry out key; Encryption server is according to encryption flow, by using cryptographic algorithm to carrying out key, digital content and encryption parameter are done the digital content that computing generates ciphertext, and supplemental instruction field and check field, description field comprises the encryption flow numbering with the digital content correspondence of ciphertext, cryptographic algorithm numbering, identifier number, the type of playback terminal, encryption key numbering and broadcast condition; The type of playback terminal comprises terminal place group number or terminal number; The digital content of ciphertext, description field and check field are stored on the storage medium together; When storage medium is put into safe playback terminal, by checking check field, correctly resolve description field, under the situation that satisfies the broadcast condition, the digital content on the storage medium can be deciphered and play to safe playback terminal.
Described digital content safety control method, it is characterized in that, the type of described playback terminal comprises terminal group number or terminal number, and the playback terminal that can indicate permission is for having the safe playback terminal of certain particular terminal numbering, or belongs to a certain group safe playback terminal; Wherein there is a particular value can represent all group of all safe playback terminal acquiescences place in the group number.
Described digital content safety control method, it is characterized in that, whether described broadcast condition can the designation number content needs to check the information of external authorization key when playing, promptly specific encryption flow requires safe playback terminal also to need to insert external authorization key and use authority key operation data on the key when playing digital content; Whether authorized key can be set to need to import and could cooperate safe playback terminal to carry out computing after user cipher is also correctly checked.
Described digital content safety control method, it is characterized in that, the counter that need deduct when described broadcast condition can be indicated safe playback terminal playing digital content is counted, if the counter on the safe playback terminal does not have enough counting, then the broadcast condition is not satisfied in explanation, can not playing digital content; If counter is counted enough, after corresponding the counting of then safe playback terminal deduction, can play the corresponding digital content.
Described digital content safety control method, it is characterized in that, described counter is counted and can be appended by the special number content in the storage medium, and described special number content comprises counting sequence sum counter value, and possesses the identifier number of particular type; Safe playback terminal stores 1 counter and 3 counting sequence memories, and 3 counting sequences number correspond respectively to the counting sequence number of safe playback terminal itself, the counting sequence of the counting sequence of safe playback terminal place group number and all groups number; By correctly checking check field and the correct description field of resolving, determine in the digital content the counting sequence correspondence be safe playback terminal itself, safe playback terminal place group or all groups, number compare with the counting sequence of the correspondence of safety playback terminal storage then, if the counting sequence in the digital content number is number newer than the counting sequence of safe playback terminal storage, then the counting sequence of safety playback terminal storage number is updated to counting sequence number in the digital content, and corresponding Counter Value in the digital content is increased in the counter of safe playback terminal.
Described digital content safety control method is characterized in that, according to the distribution order of digital content, the counting sequence in the digital content number is by unidirectional variation.
The present invention also provides a kind of encryption server, it is characterized in that, can carry out legal login by authorized key, artificial selection or select encryption flow automatically, according to encryption flow, artificial selection or select cryptographic algorithm automatically, artificial selection or be chosen as identifier that digital content arranges automatically number as encryption parameter, artificial selection allows the type of playback terminal of deciphering as key parameter, artificial selection or select encryption key that key parameter is done computing automatically to generate and carry out key; Encryption server is according to encryption flow, by using cryptographic algorithm to carrying out key, digital content and encryption parameter are done the digital content that computing generates ciphertext, and supplemental instruction field and check field, description field comprises the encryption flow numbering with the digital content correspondence of ciphertext, cryptographic algorithm numbering, identifier number, the type of playback terminal, encryption key numbering and broadcast condition.
The present invention also provides a kind of encryption server software, it is characterized in that, can carry out legal login by authorized key, artificial selection or select encryption flow automatically, according to encryption flow, artificial selection or select cryptographic algorithm automatically, artificial selection or be chosen as identifier that digital content arranges automatically number as encryption parameter, artificial selection allows the type of playback terminal of deciphering as key parameter, artificial selection or select encryption key that key parameter is done computing automatically to generate and carry out key; Encryption server software is according to encryption flow, by using cryptographic algorithm to carrying out key, digital content and encryption parameter are done the digital content that computing generates ciphertext, and supplemental instruction field and check field, description field comprises the encryption flow numbering with the digital content correspondence of ciphertext, cryptographic algorithm numbering, identifier number, the type of playback terminal, encryption key numbering and broadcast condition.
The present invention also provides a kind of authorized key, it is characterized in that, can be used in the legal login of encryption server, and can store and upgrade the needed critical data of encryption server, comprise storage and the encryption flow content is provided, but the digital content identifier number of reasonably self checking is provided, provide with only inner generation of authorized key and the cryptographic calculation that confidential execution key carries out, provide check field required computing, store and provide the counting sequence number of unidirectional variation; Described authorized key can also be used for safe playback terminal, need cooperate safe playback terminal to carry out digital content according to encryption flow and play.
The present invention also provides a kind of safe playback terminal, it is characterized in that, when the storage medium of the digital content that comprises ciphertext, description field and check field is put into safe playback terminal, by checking check field, the correct description field of resolving, under the situation that satisfies the broadcast condition, the digital content on the storage medium can be deciphered and play to safe playback terminal; The counter that need deduct when described broadcast condition can be indicated safe playback terminal playing digital content is counted, if the counter on the safe playback terminal does not have enough counting, then the broadcast condition is not satisfied in explanation, can not playing digital content; If counter is counted enough, after corresponding the counting of then safe playback terminal deduction, can play the corresponding digital content; Described counter is counted and can be appended by the special number content in the storage medium, and described special number content comprises counting sequence sum counter value, and possesses the identifier number of particular type; Safe playback terminal stores 1 counter and 3 counting sequence memories, and 3 counting sequences number correspond respectively to the counting sequence number of safe playback terminal itself, the counting sequence of the counting sequence of safe playback terminal place group number and all groups number; By correctly checking check field and the correct description field of resolving, determine in the digital content the counting sequence correspondence be safe playback terminal itself, safe playback terminal place group or all groups, number compare with the counting sequence of the correspondence of safety playback terminal storage then, if the counting sequence in the digital content number is number newer than the counting sequence of safe playback terminal storage, then the counting sequence of safety playback terminal storage number is updated to counting sequence number in the digital content, and corresponding Counter Value in the digital content is increased in the counter of safe playback terminal; Whether described broadcast condition can also the designation number content needs to check the information of external authorization key when playing, promptly specific encryption flow requires safe playback terminal also to need to insert external authorization key and use authority key operation data on the key when playing digital content.
Embodiment
Embodiment 1 (secure digital player)
Secure digital player of the present invention, it is characterized in that, when the storage medium of the digital content that comprises ciphertext, description field and check field is put into safe playback terminal, by checking check field, the correct description field of resolving, under the situation that satisfies the broadcast condition, the digital content on the storage medium can be deciphered and play to safe playback terminal; The counter that need deduct when described broadcast condition can be indicated safe playback terminal playing digital content is counted, if the counter on the safe playback terminal does not have enough counting, then the broadcast condition is not satisfied in explanation, can not playing digital content; If counter is counted enough, after corresponding the counting of then safe playback terminal deduction, can play the corresponding digital content; Described counter is counted and can be appended by the special number content in the storage medium, and described special number content comprises counting sequence sum counter value, and possesses the identifier number of particular type; Safe playback terminal stores 1 counter and 3 counting sequence memories, and 3 counting sequences number correspond respectively to the counting sequence number of safe playback terminal itself, the counting sequence of the counting sequence of safe playback terminal place group number and all groups number; By correctly checking check field and the correct description field of resolving, determine in the digital content the counting sequence correspondence be safe playback terminal itself, safe playback terminal place group or all groups, number compare with the counting sequence of the correspondence of safety playback terminal storage then, if the counting sequence in the digital content number is number newer than the counting sequence of safe playback terminal storage, then the counting sequence of safety playback terminal storage number is updated to counting sequence number in the digital content, and corresponding Counter Value in the digital content is increased in the counter of safe playback terminal; Whether described broadcast condition can also the designation number content needs to check the information of external authorization key when playing, promptly specific encryption flow requires safe playback terminal also to need to insert external authorization key and use authority key operation data on the key when playing digital content.
Described secure digital player also possesses the real-time clock of inner not power down, and the current time can be provided accurately, can correctly write down all daily records, comprises when playing what content, how long play.Can also judge whether overshoot reproduction time interval of current program according to the qualifications of ciphertext storage in the storage medium,, and error message is recorded in the daily record if exceed then will not play.
Claims (10)
1. digital content safety control method, it is characterized in that, by digital content, encryption server, authorized key, storage medium and safe playback terminal are formed, can legal login encryption server by authorized key, artificial selection or select encryption flow automatically, according to encryption flow, artificial selection or select cryptographic algorithm automatically, artificial selection or be chosen as identifier that digital content arranges automatically number as encryption parameter, artificial selection allows the type of playback terminal of deciphering as key parameter, artificial selection or select encryption key that key parameter is done computing automatically to generate and carry out key; Encryption server is according to encryption flow, by using cryptographic algorithm to carrying out key, digital content and encryption parameter are done the digital content that computing generates ciphertext, and supplemental instruction field and check field, description field comprises the encryption flow numbering with the digital content correspondence of ciphertext, cryptographic algorithm numbering, identifier number, the type of playback terminal, encryption key numbering and broadcast condition; The type of playback terminal comprises terminal place group number or terminal number; The digital content of ciphertext, description field and check field are stored on the storage medium together; When storage medium is put into safe playback terminal, by checking check field, correctly resolve description field, under the situation that satisfies the broadcast condition, the digital content on the storage medium can be deciphered and play to safe playback terminal.
2. according to the digital content safety control method described in the claim 1, it is characterized in that, the type of described playback terminal comprises terminal group number or terminal number, the playback terminal that can indicate permission is for having the safe playback terminal of certain particular terminal numbering, or belongs to a certain group safe playback terminal; Wherein there is a particular value can represent all group of all safe playback terminal acquiescences place in the group number.
3. according to the digital content safety control method described in the claim 1, it is characterized in that, whether described broadcast condition can the designation number content needs to check the information of external authorization key when playing, promptly specific encryption flow requires safe playback terminal also to need to insert external authorization key and use authority key operation data on the key when playing digital content; Whether authorized key can be set to need to import and could cooperate safe playback terminal to carry out computing after user cipher is also correctly checked.
4. according to arbitrary described digital content safety control method in the claim 1 to 3, it is characterized in that, the counter that need deduct when described broadcast condition can be indicated safe playback terminal playing digital content is counted, if the counter on the safe playback terminal does not have enough counting, then the broadcast condition is not satisfied in explanation, can not playing digital content; If counter is counted enough, after corresponding the counting of then safe playback terminal deduction, can play the corresponding digital content.
5. according to the digital content safety control method described in the claim 4, it is characterized in that, described counter is counted and can be appended by the special number content in the storage medium, described special number content comprises counting sequence sum counter value, and possesses the identifier number of particular type; Safe playback terminal stores 1 counter and 3 counting sequence memories, and 3 counting sequences number correspond respectively to the counting sequence number of safe playback terminal itself, the counting sequence of the counting sequence of safe playback terminal place group number and all groups number; By correctly checking check field and the correct description field of resolving, determine in the digital content the counting sequence correspondence be safe playback terminal itself, safe playback terminal place group or all groups, number compare with the counting sequence of the correspondence of safety playback terminal storage then, if the counting sequence in the digital content number is number newer than the counting sequence of safe playback terminal storage, then the counting sequence of safety playback terminal storage number is updated to counting sequence number in the digital content, and corresponding Counter Value in the digital content is increased in the counter of safe playback terminal.
6. according to the digital content safety control method described in the claim 5, it is characterized in that according to the distribution order of digital content, the counting sequence in the digital content number is by unidirectional variation.
7. encryption server, it is characterized in that, can carry out legal login by authorized key, artificial selection or select encryption flow automatically, according to encryption flow, artificial selection or select cryptographic algorithm automatically, artificial selection or be chosen as identifier that digital content arranges automatically number as encryption parameter, artificial selection allows the type of playback terminal of deciphering as key parameter, artificial selection or select encryption key that key parameter is done computing automatically to generate and carry out key; Encryption server is according to encryption flow, by using cryptographic algorithm to carrying out key, digital content and encryption parameter are done the digital content that computing generates ciphertext, and supplemental instruction field and check field, description field comprises the encryption flow numbering with the digital content correspondence of ciphertext, cryptographic algorithm numbering, identifier number, the type of playback terminal, encryption key numbering and broadcast condition.
8. encryption server software, it is characterized in that, can carry out legal login by authorized key, artificial selection or select encryption flow automatically, according to encryption flow, artificial selection or select cryptographic algorithm automatically, artificial selection or be chosen as identifier that digital content arranges automatically number as encryption parameter, artificial selection allows the type of playback terminal of deciphering as key parameter, artificial selection or select encryption key that key parameter is done computing automatically to generate and carry out key; Encryption server software is according to encryption flow, by using cryptographic algorithm to carrying out key, digital content and encryption parameter are done the digital content that computing generates ciphertext, and supplemental instruction field and check field, description field comprises the encryption flow numbering with the digital content correspondence of ciphertext, cryptographic algorithm numbering, identifier number, the type of playback terminal, encryption key numbering and broadcast condition.
9. authorized key, it is characterized in that, can be used in the legal login of encryption server, and can store and upgrade the needed critical data of encryption server, comprise storage and the encryption flow content is provided, but the digital content identifier number of reasonably self checking is provided, provide with only inner generation of authorized key and the cryptographic calculation that confidential execution key carries out, provide check field required computing, store and provide the counting sequence number of unidirectional variation; Described authorized key can also be used for safe playback terminal, need cooperate safe playback terminal to carry out digital content according to encryption flow and play.
10. safe playback terminal, it is characterized in that, when the storage medium of the digital content that comprises ciphertext, description field and check field is put into safe playback terminal, by checking check field, the correct description field of resolving, under the situation that satisfies the broadcast condition, the digital content on the storage medium can be deciphered and play to safe playback terminal; The counter that need deduct when described broadcast condition can be indicated safe playback terminal playing digital content is counted, if the counter on the safe playback terminal does not have enough counting, then the broadcast condition is not satisfied in explanation, can not playing digital content; If counter is counted enough, after corresponding the counting of then safe playback terminal deduction, can play the corresponding digital content; Described counter is counted and can be appended by the special number content in the storage medium, and described special number content comprises counting sequence sum counter value, and possesses the identifier number of particular type; Safe playback terminal stores 1 counter and 3 counting sequence memories, and 3 counting sequences number correspond respectively to the counting sequence number of safe playback terminal itself, the counting sequence of the counting sequence of safe playback terminal place group number and all groups number; By correctly checking check field and the correct description field of resolving, determine in the digital content the counting sequence correspondence be safe playback terminal itself, safe playback terminal place group or all groups, number compare with the counting sequence of the correspondence of safety playback terminal storage then, if the counting sequence in the digital content number is number newer than the counting sequence of safe playback terminal storage, then the counting sequence of safety playback terminal storage number is updated to counting sequence number in the digital content, and corresponding Counter Value in the digital content is increased in the counter of safe playback terminal; Whether described broadcast condition can also the designation number content needs to check the information of external authorization key when playing, promptly specific encryption flow requires safe playback terminal also to need to insert external authorization key and use authority key operation data on the key when playing digital content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100645285A CN101272239A (en) | 2007-03-19 | 2007-03-19 | Digital content safety control method, software and hardware device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100645285A CN101272239A (en) | 2007-03-19 | 2007-03-19 | Digital content safety control method, software and hardware device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101272239A true CN101272239A (en) | 2008-09-24 |
Family
ID=40005954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100645285A Pending CN101272239A (en) | 2007-03-19 | 2007-03-19 | Digital content safety control method, software and hardware device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101272239A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326855A (en) * | 2013-05-10 | 2013-09-25 | Tcl商用信息科技（惠州）股份有限公司 | Method and system for binding digital signage terminal activation and playing resource manufacturing |
| CN104573493A (en) * | 2014-12-25 | 2015-04-29 | 北京深思数盾科技有限公司 | Software protection method and system |
| CN110912941A (en) * | 2019-12-27 | 2020-03-24 | 北京四达时代软件技术股份有限公司 | Transmission processing method and device for multicast data |
-
2007
- 2007-03-19 CN CNA2007100645285A patent/CN101272239A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326855A (en) * | 2013-05-10 | 2013-09-25 | Tcl商用信息科技（惠州）股份有限公司 | Method and system for binding digital signage terminal activation and playing resource manufacturing |
| CN103326855B (en) * | 2013-05-10 | 2017-12-26 | Tcl商用信息科技（惠州）股份有限公司 | A kind of digital signage terminal and the method and system of playing resource management platform binding |
| CN104573493A (en) * | 2014-12-25 | 2015-04-29 | 北京深思数盾科技有限公司 | Software protection method and system |
| CN110912941A (en) * | 2019-12-27 | 2020-03-24 | 北京四达时代软件技术股份有限公司 | Transmission processing method and device for multicast data |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100464315C (en) | Mobile memory divulgence protection method and system | |
| CN1668002B (en) | Encryption and data-protection for content on portable medium | |
| US8938625B2 (en) | Systems and methods for securing cryptographic data using timestamps | |
| CN100417064C (en) | Information processing system and its method, information recording medium and ,program providing medium | |
| EP0895148B1 (en) | Software rental system and method for renting software | |
| CN103152173B (en) | System and method for remote device registration | |
| TWI244584B (en) | Data processing system, data processing method, and program providing medium | |
| CN1723501B (en) | Method and system for protecting content and method for accessing protected contents | |
| US9183357B2 (en) | Recording/reproducing system, recording medium device, and recording/reproducing device | |
| US20130004142A1 (en) | Systems and methods for device authentication including timestamp validation | |
| CN106571951B (en) | Audit log obtaining method, system and device | |
| US9172535B2 (en) | Key implementation system | |
| JP2002215465A5 (en) | ||
| CN103635911A (en) | Storage device and host device for protecting content and method thereof | |
| CN101025977A (en) | Information processing apparatus and method, information recording medium and its manufacturing apparatus and method | |
| CN101681657A (en) | Secure storage | |
| CN104871098A (en) | Control system, program transmission device, authentication server, program protection method, program transmission method, and program for program transmission device | |
| CN101149768A (en) | Special processor software encryption and decryption method | |
| JP2012249035A (en) | Information processor, information processing method and program | |
| CN111324901A (en) | Method for creating and decrypting enterprise security encrypted file | |
| CN111460420A (en) | Method, device and medium for using electronic seal based on block chain | |
| CN101272239A (en) | Digital content safety control method, software and hardware device | |
| AT500500A2 (en) | DEVICE AND METHOD FOR CHECKING DATA ON STORAGE MEDIA | |
| CN108090371B (en) | Data processing method, data tracking method, data processing device and data tracking device | |
| CN103907309A (en) | Memory |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080924 |