CN101170639A - Method for realizing advanced secure authentication testing between computer and STB - Google Patents
Method for realizing advanced secure authentication testing between computer and STB Download PDFInfo
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- CN101170639A CN101170639A CNA2007102028124A CN200710202812A CN101170639A CN 101170639 A CN101170639 A CN 101170639A CN A2007102028124 A CNA2007102028124 A CN A2007102028124A CN 200710202812 A CN200710202812 A CN 200710202812A CN 101170639 A CN101170639 A CN 101170639A
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Abstract
The invention relates to technique of communication between a set-top box (STB) and a computer. The technical problem solved in this invention is to provide a high-level security authentication test method between the set-top box (STB) and the computer. The invention realizes the data exchange by using the serial line between the serial port of the computer and the serial port of the STB. The invention has the advantages that: the invention realizes the communication between the STB and the computer by using large number of serial ports on the STB without increasing the hardware cost; the serial port driver program is convenient to install and doesn't need to be rewritten; the manpower and cost are saved; and the production test speed of STB is increased.
Description
Technical field
The present invention relates to the communication technology between set-top box and the computer, particularly have advanced secure authentication (SST) technology of the set-top box of advanced security chip.
Background technology
In digital TV field, operator all can carry out scrambling to the TV programme in the network.When the user receives at home, all be to watch behind the smart card insertion machine top box descrambling that will use operator to provide.The key that the user is used for descrambling transmits in real time at network, and conversion in general 10 seconds to 15 seconds once.User's set-top box must pass to it in smart card after receiving key, comes the code stream descrambling by calculating correct descrambled control words.
A decoding chip (hereinafter referred to as chip) is arranged in the set-top box, mainly finish the numeral in the cable network is become analog signal.When using common chip,, all be identical key to set-top box all in the network for the identical time of same program.As long as a set-top box obtains this key, pass to different set-top box by other approach more so, other set-top box just can freely have been seen this channel.In order to protect benefits of operators; so proposed the advanced security technology; promptly when using the advanced security chip; each chip all has the sequence number of oneself; front end can be in cable network sends different keys at different set-top box at the advanced security chip, and each set-top box receives that own corresponding key just can calculate the descrambled control words of correspondence again in conjunction with own chip serial number.
Use the advanced security chip also to have a problem, operator's front end must be known corresponding this what key of each set-top box.This issues operator with regard to needing set-top box producer when producing the relevant information of advanced security chip correspondence to be read out, according to this as the preparation of advanced secure authentication.The relevant information (advanced secure authentication testing between computer and the set-top box) that set-top box producer uses a computer and reads advanced security chip correspondence in actual production is sent to operator with relevant information again.Advanced secure authentication testing employing mode between computer and the set-top box is to use the interface board of a special use at present, and one connects the computer by serial line, and one connects the smart card of set-top box seat.Set-top box manufacturer just must remove to develop this circuit board like this.The driver of special purpose interface plate needs the research and development by producer, and the Driver Development cycle is long, the cost height.
Summary of the invention
Technical problem to be solved by this invention is that the advanced secure authentication testing method between simpler computer of a kind of enforcement and the set-top box is provided.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be, realizes the method for advanced secure authentication testing between computer and set-top box, it is characterized in that, utilizes the Serial Port Line realization exchanges data between the serial ports of computer by serial and set-top box.
Specifically may further comprise the steps:
A, set-top box start the advanced secure authentication pattern, to the handshaking information of sending of computer by serial;
B, computer enter the advanced secure authentication pattern after receiving handshaking information by serial ports;
C, computer send the order of advanced security chip serial number, simulator password, descrambled control words pattern and the set-top-box system number of reading machine top box by serial ports;
D, set-top box number send to computer by serial ports with advanced security chip serial number, simulator password, descrambled control words pattern and set-top-box system;
E, computer are sent to descrambled control words the serial ports of set-top box by serial ports by computing;
After f, set-top box are received descrambled control words, descrambler is set, sends and confirm to order to computer; Set-top box withdraws from the advanced secure authentication pattern;
G, computer are received the set-top box information of confirming that the storage of order back obtains from steps d.
The invention has the beneficial effects as follows, utilize on the set-top box originally with regard to more serial ports and realize and the communicating by letter of computer, needn't increase hardware cost; The serial port drive program is easy for installation, needn't write again; Save manpower and cost, improved the production test speed of set-top box.
Embodiment
The present invention proposes the test that realizes SST with the serial ports and the middle Serial Port Line of simple computer by serial and set-top box.Because serial ports fine realization on hardware of computer by serial and set-top box, driver is also very simple, is easy to realize the exchange of data.
Like this, as long as on software, find the driver of the serial ports of computer and set-top box, employing is similar to the mode of the request-reply of TCP/IP, each end sends a request or sends data, and the other end all will send acknowledgement command, if do not reply, after overtime, send out again continuously 5 times, if also do not reply, then declare operation failure, concrete steps are as follows:
1, start the computer terminal program, set-top box starts, and Serial Port Line is ready to, and front end is ready to;
2, computer is in wait state;
3, start factory mode (SST pattern) with the frock remote controller;
4, set-top box is sent out handshaking information to computer;
5, computer receives that handshaking information enters mode of operation (SST pattern);
6, the UK of computer reading machine top box (advanced security chip serial number) order;
7, set-top box is received this order, and UK is issued computer;
8, computer is sent out the order of the CWMode (descrambled control words pattern) that reads STB;
9, set-top box is received this order and CWMode is issued computer;
10, computer is sent out the order of the JTAGKey (simulator password) of reading machine top box;
11, set-top box is received this order and JTag is issued computer;
12, computer is sent out the order of the SysID (set-top-box system number) of reading machine top box;
13, set-top box is received this order and SysID is issued computer;
14, computer is issued set-top box by a series of computings with CW (descrambled control words);
15, set-top box is received CW, and descrambler is set, and sends to confirm to order to computer, withdraws from the SST pattern;
16, computer is received the information of confirming order back this set-top box of record, enters standby mode and waits for opening of SST pattern next time.
Process in advanced security chip production process becomes following order to data description:
| Command code | Implication | Explanation |
| A0 | Handshake | |
| A1 | Order is received | Comprise the check digit that receives orders in the descriptor. |
| B0 | Read UK | |
| B1 | Set-top box is sent UK | UK is kept in the descriptor |
| B2 | Read CWMode | |
| B3 | Set-top box is sent CWMode | CWMode is kept in the descriptor |
| B4 | Read JTAGKey | |
| B5 | Set-top box is sent JTAGKey | JTAGKey is kept in the descriptor |
| B6 | Read SysID | |
| B7 | Set-top box is sent SysID | SysID is kept in the descriptor |
| D1 | Send CW | CW is kept in the descriptor |
Concrete data lattice are designed to following form:
1. basic communications packets form
| Data name | Length (byte) | Explanation |
| Head/magic(0xC2) | 1 | The head of packet |
| Section_Length | 2 | Length of data package (with the PSI standard) |
| STB_Address | 4 | The address of set-top box (being used under the mode of many serial ports set-top box being carried out addressing) now uses UK to identify |
| Section_Descriptor | Indefinite | Comprising order and follow-up descriptor |
| CRC | 4 | Whether be used for this bag of verification correct |
2. the form of descriptor
| Data name | Length (byte) | Explanation |
| TAG | 1 | Command code |
| Desc_Len | 1 | Descriptor length |
| Desc_Data | Indefinite | Concrete descriptor |
Utilize the USB mouth of simple computer and the USB mouth and the middle USB line of set-top box; Perhaps utilize the port of computer and the port and the middle netting twine of set-top box, also can realize the SST test, but be not that ready-made USB mouth or port (and a plurality of serial ports are all arranged on each set-top box) are arranged on most of set-top box, and the installation of USB mouth or port driver do not have serial ports convenient yet, is optimal selection so use serial ports to carry out computer with communicating by letter of set-top box.
Claims (1)
1. between computer and set-top box, realize the method for advanced secure authentication testing, it is characterized in that, utilize the Serial Port Line realization exchanges data between the serial ports of computer by serial and set-top box, specifically may further comprise the steps:
A, set-top box start the advanced secure authentication pattern, to the handshaking information of sending of computer by serial;
B, computer enter the advanced secure authentication pattern after receiving handshaking information by serial ports;
C, computer send the order of advanced security chip serial number, simulator password, descrambled control words pattern and the set-top-box system number of reading machine top box by serial ports;
D, set-top box number send to computer by serial ports with advanced security chip serial number, simulator password, descrambled control words pattern and set-top-box system;
E, computer are sent to descrambled control words the serial ports of set-top box by serial ports by computing;
After f, set-top box are received descrambled control words, descrambler is set, sends and confirm to order to computer; Set-top box withdraws from the advanced secure authentication pattern;
G, computer are received the set-top box information of confirming that the storage of order back obtains from steps d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007102028124A CN101170639A (en) | 2007-11-30 | 2007-11-30 | Method for realizing advanced secure authentication testing between computer and STB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007102028124A CN101170639A (en) | 2007-11-30 | 2007-11-30 | Method for realizing advanced secure authentication testing between computer and STB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101170639A true CN101170639A (en) | 2008-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007102028124A Pending CN101170639A (en) | 2007-11-30 | 2007-11-30 | Method for realizing advanced secure authentication testing between computer and STB |
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| Country | Link |
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| CN (1) | CN101170639A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101753886A (en) * | 2008-12-15 | 2010-06-23 | 康佳集团股份有限公司 | Method and system of controlling set top box and set top box |
| CN101808252A (en) * | 2009-12-18 | 2010-08-18 | 康佳集团股份有限公司 | Method for acquiring failure messages of set top box and acquisition module thereof |
| CN102231667A (en) * | 2011-07-29 | 2011-11-02 | 飞天诚信科技股份有限公司 | Method and device for registering serial device |
| CN101710240B (en) * | 2009-11-18 | 2012-01-25 | 深圳市九洲电器有限公司 | Set-top box production control system |
| CN102340695A (en) * | 2011-10-17 | 2012-02-01 | 四川长虹电器股份有限公司 | Interaction method for STB (Set Top Box) system |
| CN102572591A (en) * | 2011-12-09 | 2012-07-11 | 深圳创维数字技术股份有限公司 | Method and device for producing advanced security digital television set-top box |
-
2007
- 2007-11-30 CN CNA2007102028124A patent/CN101170639A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101753886A (en) * | 2008-12-15 | 2010-06-23 | 康佳集团股份有限公司 | Method and system of controlling set top box and set top box |
| CN101710240B (en) * | 2009-11-18 | 2012-01-25 | 深圳市九洲电器有限公司 | Set-top box production control system |
| CN101808252A (en) * | 2009-12-18 | 2010-08-18 | 康佳集团股份有限公司 | Method for acquiring failure messages of set top box and acquisition module thereof |
| CN102231667A (en) * | 2011-07-29 | 2011-11-02 | 飞天诚信科技股份有限公司 | Method and device for registering serial device |
| CN102231667B (en) * | 2011-07-29 | 2013-06-19 | 飞天诚信科技股份有限公司 | Method and device for registering serial device |
| CN102340695A (en) * | 2011-10-17 | 2012-02-01 | 四川长虹电器股份有限公司 | Interaction method for STB (Set Top Box) system |
| CN102572591A (en) * | 2011-12-09 | 2012-07-11 | 深圳创维数字技术股份有限公司 | Method and device for producing advanced security digital television set-top box |
| CN102572591B (en) * | 2011-12-09 | 2014-03-19 | 深圳创维数字技术股份有限公司 | Method and device for producing advanced security digital television set-top box |
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