CN101783709A - Single channel tuner condition receiving system - Google Patents
Single channel tuner condition receiving system Download PDFInfo
- Publication number
- CN101783709A CN101783709A CN200910076396A CN200910076396A CN101783709A CN 101783709 A CN101783709 A CN 101783709A CN 200910076396 A CN200910076396 A CN 200910076396A CN 200910076396 A CN200910076396 A CN 200910076396A CN 101783709 A CN101783709 A CN 101783709A
- Authority
- CN
- China
- Prior art keywords
- descrambling
- scrambling
- data
- tuner
- receiving system
- 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
- Circuits Of Receivers In General (AREA)
Abstract
The invention discloses a single channel tuner condition receiving system which is characterized in that descrambling end function and demodulation function of a tuner are integrated into a chip; the chip has the only one terminal number; a descrambling end does not start descrambling when a tuner receives data; and the descrambling end selects the path of scrambled data stream for determination and descrambling only when the tuner receives commands of a receiver for selecting a path of data stream with a special number to output and scrambling parameters allow to be descrambled, therefore, the path of the data stream output from the tuner is restored to the original data stream before scrambling by a scrambling end. The invention also discloses a synchronous tuner condition receiving chip does not send the scrambling parameters, only sends random numbers or synchronous information, and has random noise, an anti-polished sensor, a scrambling bus and encrypted storage to ensure that the hardware security is not cracked.
Description
Technical field
The present invention relates to a kind of condition receiving system that descrambler and tuner are integrated.
Background technology
Common condition receiving system is transplanted difficulty, and poor compatibility in case crack, just must be changed whole system, the fusion of Application and Development software and condition receiving system again.If in tuner, implant new condition receiving system, just can be serially connected in existing any condition system, the safety of reinforcement existence conditions system, and do not influence the operation flow of existing maturation.Replacing condition system if more conversion tuner just can, other application software need not the change.
Summary of the invention
The present invention overcomes existence conditions receiving system and the indissociable shortcoming of operation system, a kind of single channel tuner condition receiving system is provided, it is characterized in that, comprise scrambling end and descrambling end, before wherein the scrambling end is connected modulation transmitter, be provided with according to the scrambling parameter, the particular data that needs scrambling in the multichannel original data stream that different numberings are arranged that will enter modulation transmitter is carried out delivering to modulation transmitter again after cryptographic calculation replaces to scrambled data formation scrambled data streams; The software and hardware of descrambling end and tuner integrates, possesses unique terminal number, when tuner receives data, the descrambling end does not start descrambling, have only tuner to receive the data flow output that a certain road of receiver command selection has particular number, and being provided with when allowing descrambling end descrambling of scrambling parameter, the descrambling end just selects this road scrambled data streams to judge and descrambling, and feasible this circuit-switched data stream from tuner output is reduced into the original data stream before the scrambling of scrambling end.
The operation ratio of descrambling end will reduce much to be suitable for improving on existing tuner chip compared with the descrambling total data like this.
Described single channel tuner condition receiving system is characterized in that, described descrambling end function realizes and the rectification function of tuner realizes being integrated on the chips.
Described single channel tuner condition receiving system is characterized in that, the descrambling end also possesses zone number except that possessing unique terminal number, and each scrambling end has different terminal number, but identical zone number can be arranged, and is used to improve empowerment management efficient.Described terminal number can self checking, and promptly the part according to terminal number can calculate another part, can prevent the fake equipment numbering like this.
In order to prevent that the descrambling end is not in working order, the scrambling end will constantly repeat to send the Entitlement Management Message that has the descrambling end of particular terminal numbering at certain, when number of users is a lot, these Entitlement Management Messages will continue to occupy the lot of data bandwidth resources, if the specific user is divided into class, then only with sending the Entitlement Management Message that has the descrambling end of same area numbering at certain class, continuing to occupy data bandwidth will be little a lot.
Described single channel tuner condition receiving system is characterized in that, described scrambling parameter is encrypted to condition data, appends in the scrambled data streams, and the descrambling end solves the scrambling parameter from condition data, descrambling is controlled.
Described single channel tuner condition receiving system, it is characterized in that, comprise the Entitlement Control Message that is used to control the scrambling mode in the described scrambling parameter, be used to control the Entitlement Management Message of descrambling end descrambling authority, the system upgrade information of be used for upgrading descrambling program and parameter one or more.
The Entitlement Control Message concrete regulation scrambling be which data, what method for scrambling is.
The Entitlement Management Message concrete regulation which or which descrambling end can be allowed to use the specific authorized control information that specific scrambled data is carried out descrambling.
System upgrade information is partly or entirely upgraded the descrambling program, also can the key parameter of descrambling program be upgraded.
Described single channel tuner condition receiving system, it is characterized in that, according to the Entitlement Control Message that sets in advance or add in real time, the scrambling end can different scrambling modes carry out scrambling to the different The data in the original data stream, according to the Entitlement Control Message that sets in advance or take out from the control data that the scrambling end adds, the descrambling end also can carry out the descrambling reduction with different scrambled data by corresponding different descrambling modes.
Described single channel tuner condition receiving system, it is characterized in that, according to the Entitlement Management Message that sets in advance or add in real time at particular terminal numbering or zone number descrambling end, the management data that carries Entitlement Management Message that the scrambling end will be encrypted is inserted in the scrambled data streams, the descrambling end that only has respective specific terminal number or zone number could be discerned exclusive management data, therefrom take out Entitlement Management Message, adjust the descrambling authority and preserve, allow or forbid specific scrambled data is carried out the descrambling reduction.
Described single channel tuner condition receiving system, it is characterized in that, only some is encrypted to condition data to described scrambling parameter, append in the scrambled data streams, promptly the scrambling parameter of Chuan Songing has incomplete characteristics, after the descrambling end solves incomplete scrambling parameter, can be combined into complete scrambling parameter jointly with inner additional data, described inner additional data be meant data that the descrambling end sets in advance and/or from before the part of the scrambling parameter that obtains the condition data.
In order to guarantee safety and the upgrading characteristics, constantly change the scrambling parameter, make system not the long time rely on certain specific scrambling mode, make that do not have abundant data to make for the cryptanalysis system is used for cracking the part receiving system.
Described single channel tuner condition receiving system is characterized in that, the part of described terminal number also can be as zone number.
The independent outer memory of zone number meeting occupy volume occupies if just can save extra storage with the part of unique terminal number as zone number.
Described single channel tuner condition receiving system, it is characterized in that, according to the scrambling parameter that sets in advance, the scrambling end can a scrambling original data stream in specific data, not additional other condition data, same according to the scrambling parameter that writes in advance, the descrambling end can be discerned specific scrambled data and carry out the descrambling reduction.
Such condition receiving system is a closed system, the place one's entire reliance upon fail safe of hardware of fail safe.When hardware security is secure, scrambling end and descrambling end utilize internal key, by to all different random number and/or dynamic data carry out computing at every turn, produce one-time pad, one time one parameter, all different at every turn key, all different at every turn parameter produces all different at every turn algorithm and scrambling mode.
Embodiment
Embodiment 1 (simultaneous tuning device condition receiving chip)
Simultaneous tuning device condition receiving chip of the present invention, it is characterized in that, descrambling end function realizes and the major functions such as rectification of tuner realize being integrated on the chips, and possesses unique terminal number, according to hardware capability, the scrambling end can a scrambling original data stream in specific data, when tuner receives data, the descrambling end does not start descrambling, have only tuner to receive the data flow output that a certain road of receiver command selection has particular number, and being provided with when allowing descrambling of scrambling parameter, simultaneous tuning device condition receiving chip just selects this road scrambled data streams to judge and descrambling, and feasible this circuit-switched data stream from tuner output is reduced into the original data stream before the scrambling of scrambling end.The descrambling end possesses unique terminal number, and described terminal number can self checking, and promptly the part according to terminal number can calculate another part.Scrambling end and descrambling end utilize internal key, by all different random number and/or dynamic data are at every turn carried out computing, produce one-time pad, one time one parameter, all different at every turn key, all different at every turn parameter produces all different at every turn algorithm and scrambling mode.Described dynamic data is the identifying code of program data or rolling code, because program data possesses dynamic characteristic at any time changing; The identifying code of rolling code is then safer, because rolling code rolls by the specific internal formula, have only special hardware ability to produce synchronously, and the identifying code of rolling code is just verified the correctness of synchronous rolling for the descrambling end.What the outside rolling code that can't obtain actual use is.Described like this simultaneous tuning device condition receiving system can not send the scrambling parameter, only sends random number or synchronizing information, as long as ensure that hardware security just can't crack.
For the hardware that prevents simultaneous tuning device condition receiving chip is cracked, chip is provided with the power noise at random in the execution process instruction, prevents from outside to carry out instruction analysis according to power consumption; Chip also is provided with anti-polishing transducer, is polished when chip, sees that light or lead resistance change all can cause the fuse self-destruction when powering on; Chip is provided with to be upset bus and encrypts storage, can't be in static conditions code analysis and data.
Claims (10)
1. single channel tuner condition receiving system, it is characterized in that, comprise scrambling end and descrambling end, before wherein the scrambling end is connected modulation transmitter, be provided with according to the scrambling parameter, the particular data that needs scrambling in the multichannel original data stream that different numberings are arranged that will enter modulation transmitter is carried out delivering to modulation transmitter again after cryptographic calculation replaces to scrambled data formation scrambled data streams; The software and hardware of descrambling end and tuner integrates, possesses unique terminal number, when tuner receives data, the descrambling end does not start descrambling, have only tuner to receive the data flow output that a certain road of receiver command selection has particular number, and being provided with when allowing descrambling end descrambling of scrambling parameter, the descrambling end just selects this road scrambled data streams to judge and descrambling, and feasible this circuit-switched data stream from tuner output is reduced into the original data stream before the scrambling of scrambling end.
2. according to the single channel tuner condition receiving system described in the claim 1, it is characterized in that described descrambling end function realizes and the rectification function of tuner realizes being integrated on the chips.
3. according to the single channel tuner condition receiving system described in the claim 2, it is characterized in that, the descrambling end is except that possessing unique terminal number, also possesses zone number, each scrambling end has different terminal number, but identical zone number can be arranged, and is used to improve empowerment management efficient, described terminal number can self checking, and promptly the part according to terminal number can calculate another part.
4. according to the single channel tuner condition receiving system described in the claim 3, it is characterized in that described scrambling parameter is encrypted to condition data, appends in the scrambled data streams, the descrambling end solves the scrambling parameter from condition data, descrambling is controlled.
5. according to the single channel tuner condition receiving system described in the claim 4, it is characterized in that, comprise the Entitlement Control Message that is used to control the scrambling mode in the described scrambling parameter, be used to control the Entitlement Management Message of descrambling end descrambling authority, the system upgrade information of be used for upgrading descrambling program and parameter one or more.
6. according to arbitrary described single channel tuner condition receiving system in the claim 5, it is characterized in that, according to the Entitlement Control Message that sets in advance or add in real time, the scrambling end can different scrambling modes carry out scrambling to the different The data in the original data stream, according to the Entitlement Control Message that sets in advance or take out from the control data that the scrambling end adds, the descrambling end also can carry out the descrambling reduction with different scrambled data by corresponding different descrambling modes.
7. according to the single channel tuner condition receiving system described in the claim 6, it is characterized in that, according to the Entitlement Management Message that sets in advance or add in real time at particular terminal numbering or zone number descrambling end, the management data that carries Entitlement Management Message that the scrambling end will be encrypted is inserted in the scrambled data streams, the descrambling end that only has respective specific terminal number or zone number could be discerned exclusive management data, therefrom take out Entitlement Management Message, adjust the descrambling authority and preserve, allow or forbid specific scrambled data is carried out the descrambling reduction.
8. according to arbitrary described single channel tuner condition receiving system in the claim 1 to 7, it is characterized in that, only some is encrypted to condition data to described scrambling parameter, append in the scrambled data streams, promptly the scrambling parameter of Chuan Songing has incomplete characteristics, after the descrambling end solves incomplete scrambling parameter, can be combined into complete scrambling parameter jointly with inner additional data, described inner additional data be meant data that the descrambling end sets in advance and/or from before the part of the scrambling parameter that obtains the condition data.
9. the single channel tuner condition receiving system described in according to Claim 8 is characterized in that the part of described terminal number also can be as zone number.
10. according to arbitrary described single channel tuner condition receiving system in the claim 1 to 3, it is characterized in that, according to the scrambling parameter that sets in advance, the scrambling end can a scrambling original data stream in specific data, not additional other condition data, same according to the scrambling parameter that writes in advance, the descrambling end can be discerned specific scrambled data and carry out the descrambling reduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910076396A CN101783709A (en) | 2009-01-15 | 2009-01-15 | Single channel tuner condition receiving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910076396A CN101783709A (en) | 2009-01-15 | 2009-01-15 | Single channel tuner condition receiving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101783709A true CN101783709A (en) | 2010-07-21 |
Family
ID=42523536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910076396A Pending CN101783709A (en) | 2009-01-15 | 2009-01-15 | Single channel tuner condition receiving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101783709A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840937A (en) * | 2012-11-23 | 2014-06-04 | 许丰 | Virtual quantum encryption system |
| CN109743622A (en) * | 2019-01-23 | 2019-05-10 | 青岛海信电器股份有限公司 | A kind of tuning method for parameter configuration, device and equipment based on CAM card |
-
2009
- 2009-01-15 CN CN200910076396A patent/CN101783709A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840937A (en) * | 2012-11-23 | 2014-06-04 | 许丰 | Virtual quantum encryption system |
| CN109743622A (en) * | 2019-01-23 | 2019-05-10 | 青岛海信电器股份有限公司 | A kind of tuning method for parameter configuration, device and equipment based on CAM card |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108965218B (en) | Controller area network bus secure communication method, device and system | |
| US7284123B2 (en) | Secure communication system and method for integrated mobile communication terminals comprising a short-distance communication module | |
| CN106535090B (en) | Bluetooth device and intelligent device pairing method and Bluetooth device | |
| CN106878926A (en) | A kind of data transmission method based on low-power consumption bluetooth, from main equipment and system | |
| CN109168162B (en) | Bluetooth communication encryption method and device and intelligent security equipment | |
| KR101943855B1 (en) | Security system using advertising based on bluetooth low energy, and method thereof | |
| CN101602358A (en) | A kind of engine anti-theft authentication method based on the AES128 cryptographic algorithm | |
| CN112672342B (en) | Data transmission method, device, equipment, system and storage medium | |
| CN103763757A (en) | Method for rapid networking based on internet-of-thing embedded type Wi-Fi module | |
| US8306223B2 (en) | Method and a system for transmitting encrypted control message based on mobile multimedia broadcast | |
| CN110167023A (en) | A kind of navigation signal encryption and authentication method | |
| CN111788836B (en) | Data transmission method and BLE equipment | |
| KR100796525B1 (en) | System for sharing Subscriber Indentification Module information of mobile communication terminal and control method thereof | |
| KR20230038418A (en) | Personalization of security elements | |
| CN107171804B (en) | A kind of data transmission method | |
| CN101783709A (en) | Single channel tuner condition receiving system | |
| CN110312253A (en) | A kind of method for network access, apparatus and system | |
| CN102316110A (en) | Authentication method for data terminal to access to server | |
| CN202018807U (en) | Data stream conversion device and flat-panel display | |
| CN111356132B (en) | Bluetooth access control method, system, electronic equipment and storage medium | |
| CN102396241B (en) | Method to secure access to audio/video content in a decoding unit | |
| CN114221822B (en) | Distribution network method, gateway device and computer readable storage medium | |
| CN102098312B (en) | A kind of method and apparatus transmitting key | |
| CN108366359A (en) | A kind of method, apparatus and system of configuration set-top box connection WiFi | |
| CN107797810A (en) | Update the method and apparatus of the program in car key |
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 |
Application publication date: 20100721 |