CN102625176A - Method for burning secret key, digital terminal and system for burning secret key - Google Patents

Method for burning secret key, digital terminal and system for burning secret key Download PDF

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Publication number
CN102625176A
CN102625176A CN2012100872400A CN201210087240A CN102625176A CN 102625176 A CN102625176 A CN 102625176A CN 2012100872400 A CN2012100872400 A CN 2012100872400A CN 201210087240 A CN201210087240 A CN 201210087240A CN 102625176 A CN102625176 A CN 102625176A
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China
Prior art keywords
key value
key
burning
dtv
available data
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Pending
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CN2012100872400A
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Chinese (zh)
Inventor
李剑
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Shenzhen Coship Electronics Co Ltd
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Shenzhen Coship Electronics Co Ltd
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Priority to CN2012100872400A priority Critical patent/CN102625176A/en
Publication of CN102625176A publication Critical patent/CN102625176A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a method for burning a secret key, which includes: analyzing an original KEY file to obtain a plurality of KEY values; intercepting the KEY values different from the used KEY values in the existing database from the original KEY file and transmitting the KEY values to a digital television; leading the digital television to receive and burn the KEY values; and updating the burnt KEY values to the existing database. The invention further discloses a digital terminal and a system for burning the secret key. In application of the embodiments of the method, the digital terminal and the system, when the KEY values need to be burnt, the KEY values different from the used KEY values comparing with the used KEY values in the existing database can be intercepted from the original KEY file for burning by, so that non-reusable property of HDCPKEY can be achieved; and the KEY values burnt in the digital television are led to be in one-to-one correspondence with the digital television, accordingly pirate can be restrained and copyright can be well protected.

Description

A kind of method of burning key, digital terminal and system
Technical field
The present invention relates to digital TV field, relate in particular to a kind of method, digital terminal and system of burning key.
Background technology
Appearance along with high-definition movie, TV programme; People are also strengthening the desire that can watch HD video; Propagation medium has display, television set, projector, video card, DVD player etc. at present; How to accomplish that the high-definition content between these equipment is not more and more by the method for pirate or illegal intercepting yet, wherein, HDCP (High-bandwidth Digital Content Protection; The HDCP technology) KEY (key) is exactly the technology that develops for the digital content protecting in high broadband; Used movie program after the anti-pirate technology of HDCP KEY can only be on the equipment of supporting HDCP normal play, otherwise can only see that blank screen or low image quality show, make it lose the value of high definition.
But at present, HDCP KEY has not uniqueness, and is promptly repeatable.That is to say that a HDCP KEY value can be burnt on many DTVs, is unfavorable for the protection of legal HD video like this.
Summary of the invention
The embodiment of the invention is to provide a kind of method, digital terminal and system of burning key; Can through with the available data storehouse in the comparison of KEY value; Carry out burning with the different burning KEY value of treating of KEY value in the original KEY file of intercepting with, solved the low problem of legal high-definition content protection degree.
The present invention is achieved in that a kind of method of burning key, comprising:
Resolve original KEY file, obtain a plurality of KEY values;
In the said original KEY file of intercepting with the available data storehouse in the different KEY value of KEY value used, said KEY value is sent to DTV;
Said DTV receives said KEY value and burning;
KEY value after the burning is updated in the said available data storehouse.
Another object of the present invention is to provide a kind of digital terminal, comprising:
Parsing module is used to resolve original KEY file, obtains a plurality of KEY values;
The intercepting comparison module links to each other with parsing module, is used for the different KEY value of KEY value used in the said original KEY file of intercepting and the available data storehouse, and said KEY value is sent to DTV;
Update module is used for after the said KEY value of said DTV success burning, said KEY value being updated in the said available data storehouse.
A purpose more of the present invention is to provide a kind of system of burning key.
Digital terminal is used to resolve original KEY file, obtains a plurality of KEY values, in the said original KEY file of intercepting with the available data storehouse in the different KEY value of KEY value used, said KEY value is sent to said DTV;
DTV links to each other with said digital terminal, is used to receive said KEY value and burning;
Digital terminal also is used for the KEY value after the burning is updated to said available data storehouse.
Implement the foregoing description; When needs burning KEY value, through with the available data storehouse in the comparison of KEY value, carry out burning with the different burning KEY value of treating of KEY value in the original KEY file of intercepting with; Realize the not reusability of HDCP KEY; Making the KEY value that is burnt in the DTV is corresponding one by one with this DTV, can suppress pirate like this, makes copyright obtain better protection.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the method flow sketch map of a kind of burning key of the embodiment of the invention;
Fig. 2 is the schematic flow sheet of another embodiment of the method for a kind of burning key of the present invention;
Fig. 3 is the structural representation of a kind of digital terminal of the embodiment of the invention;
Fig. 4 is the structural representation of system of a kind of burning key of the embodiment of the invention.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.
See also the method flow sketch map of a kind of burning key of the embodiment of the invention shown in Fig. 1, comprising:
Step S101: resolve primary key (KEY) file, obtain a plurality of keys (KEY) value.
Concrete, digital terminal is resolved primary key (KEY) file, obtains a plurality of keys (KEY) value.
Step S102: in the original KEY file of intercepting with the available data storehouse in the different KEY value of KEY value used, this KEY value is sent to DTV.
Concrete, in the original KEY file of digital terminal intercepting with the available data storehouse in the different KEY value of KEY value used, this KEY value is sent to DTV.This available data storehouse can exist on the inner hard disk of digital terminal, and perhaps digital terminal can have access to this available data storehouse that is stored on the STB External memory equipment through usb or other external interface.
Step S103: DTV receives this KEY value and burning.
Step S104: the KEY value after the burning is updated in the available data storehouse.
Concrete, the KEY value of digital terminal after with burning is updated in the available data storehouse.
Implement the foregoing description; When needs burning KEY value, through with the available data storehouse in the comparison of KEY value, carry out burning with the different burning KEY value of treating of KEY value in the original KEY file of intercepting with; Realize the not reusability of HDCP KEY; Making the KEY value that is burnt in the DTV is corresponding one by one with this DTV, can suppress pirate like this, makes copyright obtain better protection.
Schematic flow sheet below in conjunction with another embodiment of the method for a kind of burning key of the present invention shown in Fig. 2 for clearer description embodiment, replaces digital terminal with STB, method step comprises:
Step S201: STB sends and reads the instruction of KEY value to DTV.
Step S202: DTV reads the instruction of KEY value according to this and reads the KEY value, and this KEY value is returned STB.
Step S203: STB contrasts the KEY value of having used of KEY value that receives and available data library storage one by one, if the KEY value that receives is consistent with the KEY value of having used, gets into step 204; If the KEY value that receives is inconsistent with the KEY value of having used, get into step 205.
Concrete, this available data storehouse can exist on the inner hard disk of STB, and perhaps STB inquires this available data storehouse that is stored on the STB External memory equipment through usb or other external interface.
Step S204: do not handle, flow process finishes.
Concrete, represent the DTV legal KEY value of burning, the burning flow process finishes.
Step S205: STB is resolved original KEY file.
Concrete, comprise a plurality of KEY values in the original KEY file, such as containing 1000 KEY values in the original KEY file.
Step S206: STB obtains in the available data storehouse the number X with the KEY value.
Concrete, be 10 such as the number of having used the KEY value in the available data storehouse, then X is 10.
Step S207: X+1 KEY value in the original KEY file of STB intercepting is for treating the KEY value of burning.
Concrete, X+1 KEY value in the original KEY file of intercepting in 1000 KEY values, i.e. the 11st KEY value of intercepting.And with preceding X used KEY value in this X+1 KEY value and the available data storehouse relatively, in case be truncated to used KEY value.
Step S208: STB sends to DTV with this KEY value of treating burning, this KEY value of DTV burning.
Concrete, DTV in this KEY value process of burning, the packet that sends when communication failure between STB and the DTV or STB do not conform to the packet that DTV receives or check code not simultaneously, wrong retry chance is provided repeatedly.After this KEY value of DTV success burning, send answer signal to STB, point out the success of burning.
Step S209: after this KEY value of DTV success burning, STB adds this KEY value in the available data storehouse to.
Implement the foregoing description; When needs burning KEY value, through with the available data storehouse in the comparison of KEY value, carry out burning with the different burning KEY value of treating of KEY value in the original KEY file of intercepting with; Realize the not reusability of HDCP KEY; Making the KEY value that is burnt in the DTV is corresponding one by one with this DTV, can suppress pirate like this, makes copyright obtain better protection.
Below in conjunction with a kind of digital terminal structural representation of the embodiment of the invention shown in Fig. 3, the structure of a kind of digital terminal of the further explain embodiment of the invention.
Parsing module 301 is used to resolve original KEY file, obtains a plurality of KEY values.
Intercepting comparison module 302 links to each other with parsing module 301, is used for the different KEY value of KEY value used in the original KEY file of intercepting and the available data storehouse, and this KEY value is sent to DTV.
Update module 303 is used for after this this KEY value of DTV success burning, this KEY value being updated in this available data storehouse.
More excellent, intercepting comparison module 302 also comprises to obtain submodule 3021 and intercepting submodule 3022:
Obtain submodule 3021, be used for obtaining the available data storehouse with the number X of KEY value.
Intercepting submodule 3022 and obtains submodule 3021 and links to each other, and X+1 the KEY value that is used for the original KEY file of intercepting is for treating the KEY value of burning.
Concrete, digital terminal also comprises:
Read module 304 is used for sending and reads the instruction of KEY value to DTV.
Comparison module 305; Link to each other with parsing module 301; Be used to receive the KEY value of returning from this DTV; The KEY value of having used of KEY value that receives and available data library storage is contrasted one by one,, send the request analysis signal and give parsing module 301 if the KEY value that receives is inconsistent with the KEY value of having used.
Implement the foregoing description; When needs burning KEY value, through with the available data storehouse in the comparison of KEY value, carry out burning with the different burning KEY value of treating of KEY value in the original KEY file of intercepting with; Realize the not reusability of HDCP KEY; Making the KEY value that is burnt in the DTV is corresponding one by one with this DTV, can suppress pirate like this, makes copyright obtain better protection.
Below in conjunction with the system configuration sketch map of a kind of burning key of the embodiment of the invention shown in Fig. 4, the structure of the system of a kind of burning key of the further explain embodiment of the invention.
Digital terminal 401 is used to resolve original KEY file, obtains a plurality of KEY values, in the original KEY file of intercepting with the available data storehouse in the different KEY value of KEY value used, this KEY value is sent to DTV 402.
DTV 402 links to each other with digital terminal 401, is used to receive this KEY value and burning.
Digital terminal 401 also is used for the KEY value after the burning is updated to the available data storehouse.
More excellent, before digital terminal 401 is resolved original KEY file, also comprise:
Digital terminal 401 also is used for sending and reads the instruction of KEY value to DTV 402.
DTV 402 also is used for reading the instruction of KEY value according to this and reads the KEY value, and this KEY value is returned digital terminal 401.
Digital terminal 401 also is used for the KEY value of having used of KEY value that receives and available data library storage is contrasted one by one, if the KEY value that receives is inconsistent with the KEY value of having used, digital terminal 401 is resolved original KEY file.
Digital terminal comprises mobile phone, panel computer, notebook computer, desktop computer, personal digital assistant, digital TV integrated machine, STB etc.
Implement the foregoing description; When needs burning KEY value, through with the available data storehouse in the comparison of KEY value, carry out burning with the different burning KEY value of treating of KEY value in the original KEY file of intercepting with; Realize the not reusability of HDCP KEY; Making the KEY value that is burnt in the DTV is corresponding one by one with this DTV, can suppress pirate like this, makes copyright obtain better protection.
Need to prove that through the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential hardware platform, can certainly all implement through hardware.Based on such understanding; All or part of can the coming out that technical scheme of the present invention contributes to background technology with the embodied of software product; This computer software product can be stored in the storage medium, like ROM/RAM, magnetic disc, CD etc., comprises that some instructions are with so that a computer equipment (can be a personal computer; Server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
The above disclosed preferred embodiment that is merely in the embodiment of the invention can not limit the present invention's interest field certainly with this, so according to the equivalent variations that claim of the present invention is done, still belong to the scope that the present invention is contained.

Claims (9)

1. the method for a burning key is characterized in that, comprising:
Resolve original KEY file, obtain a plurality of KEY values;
In the said original KEY file of intercepting with the available data storehouse in the different KEY value of KEY value used, said KEY value is sent to DTV;
Said DTV receives said KEY value and burning;
KEY value after the burning is updated in the said available data storehouse.
2. the method for claim 1 is characterized in that, at the original KEY file of said parsing, obtains also comprising before a plurality of KEY values:
Transmission is read the instruction of KEY value and is given said DTV;
Said DTV reads the instruction of KEY value according to this and reads current KEY value, and said current KEY value is returned;
The KEY value of having used of said current KEY value that receives and said available data library storage is contrasted one by one, if the said current KEY value that receives is consistent with the KEY value of having used, the burning flow process finishes.
3. the method for claim 1 is characterized in that, in the said original KEY file of said intercepting with the available data storehouse in the different KEY value of KEY value used, specifically comprise:
Obtain in the said available data storehouse number X with the KEY value;
X+1 KEY value in the said original KEY file of intercepting is said different KEY value.
4. the method for claim 1 is characterized in that, said DTV also comprises after receiving said KEY value and burning: after the said KEY value of said DTV success burning, send answer signal, point out the success of burning.
5. a digital terminal is characterized in that, comprising:
Parsing module is used to resolve original KEY file, obtains a plurality of KEY values;
The intercepting comparison module links to each other with parsing module, is used for the different KEY value of KEY value used in the said original KEY file of intercepting and the available data storehouse, and said KEY value is sent to DTV;
Update module is used for after the said KEY value of said DTV success burning, said KEY value being updated in the said available data storehouse.
6. digital terminal as claimed in claim 5 is characterized in that, said intercepting comparison module also comprises and obtains submodule and intercepting submodule:
Obtain submodule, be used for obtaining said available data storehouse with the number X of KEY value;
The intercepting submodule links to each other with the said submodule that obtains, and X+1 the KEY value that is used for the said original KEY file of intercepting is said different KEY value.
7. digital terminal as claimed in claim 5 is characterized in that, also comprises:
Read module is used for sending and reads the instruction of KEY value to said DTV;
Comparison module; Link to each other with said parsing module; Be used to receive the current KEY value of returning from said DTV; The KEY value of having used of said current KEY value that receives and available data library storage is contrasted one by one,, send the request analysis signal and give said parsing module if the said current KEY value that receives is inconsistent with the KEY value of having used.
8. the system of a burning key is characterized in that, comprises digital terminal and DTV:
Digital terminal is used to resolve original KEY file, obtains a plurality of KEY values, in the said original KEY file of intercepting with the available data storehouse in the different KEY value of KEY value used, said KEY value is sent to said DTV;
DTV links to each other with said digital terminal, is used to receive said KEY value and burning;
Digital terminal also is used for the KEY value after the burning is updated to said available data storehouse.
9. system as claimed in claim 8 is characterized in that, also comprises:
Digital terminal also is used for sending and reads the instruction of KEY value to said DTV;
DTV also is used for reading current KEY value according to the said KEY of reading value instruction, and said current KEY value is returned digital terminal;
Digital terminal also is used for the KEY value of having used of said current KEY value that receives and said available data library storage is contrasted one by one, if the current KEY value that receives is inconsistent with the KEY value of having used, said digital terminal is resolved original KEY file.
CN2012100872400A 2012-03-29 2012-03-29 Method for burning secret key, digital terminal and system for burning secret key Pending CN102625176A (en)

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CN2012100872400A CN102625176A (en) 2012-03-29 2012-03-29 Method for burning secret key, digital terminal and system for burning secret key

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Application Number Priority Date Filing Date Title
CN2012100872400A CN102625176A (en) 2012-03-29 2012-03-29 Method for burning secret key, digital terminal and system for burning secret key

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106229007A (en) * 2016-08-09 2016-12-14 广州视源电子科技股份有限公司 HDCP KEY sending method, burning method and device
CN107809677A (en) * 2017-11-07 2018-03-16 四川长虹电器股份有限公司 A kind of preset Widevine Key of batch in a television set system and method
CN108304740A (en) * 2017-06-02 2018-07-20 深圳三诺信息科技有限公司 A kind of method of burning digital product key
CN108563452A (en) * 2018-03-09 2018-09-21 南昌市科陆智能电网科技有限公司 A kind of method and system of embedded scm automatic online programming program
CN110675894A (en) * 2019-09-25 2020-01-10 北京四达时代软件技术股份有限公司 HDCP key online burning method and device and electronic equipment

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106229007A (en) * 2016-08-09 2016-12-14 广州视源电子科技股份有限公司 HDCP KEY sending method, burning method and device
CN106229007B (en) * 2016-08-09 2019-11-05 广州视源电子科技股份有限公司 HDCP KEY sending method, burning method and device
CN108304740A (en) * 2017-06-02 2018-07-20 深圳三诺信息科技有限公司 A kind of method of burning digital product key
CN108304740B (en) * 2017-06-02 2021-01-08 深圳三诺信息科技有限公司 Method for burning digital product key
CN107809677A (en) * 2017-11-07 2018-03-16 四川长虹电器股份有限公司 A kind of preset Widevine Key of batch in a television set system and method
CN107809677B (en) * 2017-11-07 2020-04-21 四川长虹电器股份有限公司 System and method for presetting Widevine keys in batches in television
CN108563452A (en) * 2018-03-09 2018-09-21 南昌市科陆智能电网科技有限公司 A kind of method and system of embedded scm automatic online programming program
CN110675894A (en) * 2019-09-25 2020-01-10 北京四达时代软件技术股份有限公司 HDCP key online burning method and device and electronic equipment

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Application publication date: 20120801