On January 4, 2010, the live broadcast star of Zhongxing No. 9 appeared mandatory upgrade information. The purpose of this upgrade was to control the cottage and the gray Zhongxing 9 live satellite special machine with production license manufacturers through technical means. The result is that only 12 sets of programs based on a few famous TV stations can be seen. The scope of the upgrade service is the satellite-specific satellite-specific aircraft that has been issued to the Zhongxing No. 9 village in the first phase of the national bidding enterprise.
The ordinary cottage and the gray Zhongxing No. 9 special machine are similar in hardware to the regular winning Zhongxing No. 9 special machine, but since there is no authorization of the SARFT, there is no decryption public key for this air software upgrade, so this forced upgrade cannot be downloaded. Documents, naturally, it is impossible to receive 46 sets of satellite TV programs of the current winning bidder. The villagers who have passed the network access permit of the SARFT and won the bid in the first phase will have a public key issued by the SARFT for the software upgrade and decryption. The relevant departments of the State Administration of Radio, Film and Television will save the private key (not Open, unique). When the live broadcast star makes upgrade software, the SARFT encrypts the upgrade file with each manufacturer's private key (that is, the password key), and then sends the information through the live broadcast satellite. When the medium 9 dedicated machine in the live star user's home receives the corresponding upgrade information, the decryption information must first be decrypted to continue downloading the software for normal upgrade. At this time, the cottage machine loves the gray machine without the public key (decryption password) and cannot decrypt the original upgrade information, and is intercepted outside the gate of the forced upgrade program; naturally, it cannot be upgraded normally.
When the regular winning factory machine leaves the factory, each set-top box has a serial number. For example, if a factory produces 1 to 10,000 set-top boxes, then there are 10,000 different machine serial numbers, which can be controlled and controlled by corresponding means during the upgrade. When the specification is stricter, only the set-top box with the serial number between 1 and 10000 can be upgraded. The redundant machine will not be upgraded because the serial number is not included.
In addition, each manufacturer also has a manufacturer code, such as the code of a factory is Ox, the program used is different, the upgrade software will also be modified. Based on these three technical barriers, it can be guaranteed: 1. The respective manufacturers can only upgrade their own manufacturers' machines (identified by the manufacturer code). 2. The number of upgraded machines can be controlled (controlled by serial number). 3. Normally decrypt the upgrade information and upgrade it (by encrypting the information and decrypting the key). The cottage manufacturers do not have these conditions or only have one or two of them, which is obviously controlled outside the scope of this mandatory upgrade.
At this time, the live broadcast software also sends the information of the broadcast parameter change, and the special machine that receives the information is required to automatically scan the new program, and the result is that only 12 sets of satellite programs can be received.
After the upgrade, the cottage machine can only watch 12 sets of unchanged TV programs after the upgrade (the technical parameters changed in the front-end broadcast). The remaining 34 sets of programs have changed the PID code by upgrading, and the ordinary machine has no way to update. Although it can't be upgraded in the air, it can be upgraded through the computer serial port. It is also the same program that can be seen by the winning machine. Because Zhongxing 9 live broadcast star has been clearly broadcasted transparently in the planning and design of the first phase of the village-wide program, there is no other better way to ensure that nearly 4 million sets of winning bids have been guaranteed. The machine is upgraded and watched normally, and it also restricts the gray cottage set-top box on the market. This is also impossible for the relevant departments of the State Administration of Radio, Film and Television and the live broadcast company to limit and manage.
According to the situation of the market cottage and the gray live star special machine, there are currently four upgrade methods. 1 is the aerial upgrade of the live star; 2 is the serial port or data line upgrade of the set-top box through the computer and software tools; 3 is upgraded through the direct serial port or data line of the live star machine and the machine; 4 is directly upgraded through the USB interface (this) The class machine is based on the Sunplus program's Digimon Live Star special machine, which is also the fastest upgraded machine). After the live broadcast of the star-specific aircraft air force upgrade program, most manufacturers rely on the solution provider, and expect the solution companies (such as Beijing Haier, Hangzhou Guoxin, etc.) to provide tool software to support. The result is conceivable, no one live star set-top box manufacturer got the software needed. On the contrary, the technical strength of the private sector has become increasingly powerful. Soon some people released the tutorial on how to modify the PID code, and successively released the upgrade files of different programs for the live star special machine. Of course, this is only the beginning of the live stream upgrade. If the TV laws and regulations have not changed, perhaps these cottage and gray machine users will have difficulty enjoying the "special treatment" that they have in the past.
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