Xueba's computing system

Chapter 73 System, Stop Pretending

The system can obtain data through a calibrated camera.

According to Lin Yuan's understanding of the system, the system still follows the laws of the objective world. So the way the system obtains camera data must still be through the Internet, not some other-dimensional technology of the Zenithians.

Furthermore, the system cannot obtain data from cameras that are not connected to the public network. This further confirmed Lin Yuan's guess.

But what puzzled Lin Yuan was that most network cameras were connected to the network video platform. For example, the smart home ecosystem of the coarse grain factory supported the connection of cameras of various companies to the ecological platform of the coarse grain factory according to certain protocols.

Lin Yuan didn't know much about the video transmission protocol, but he soon realized a problem - whether the video transmission was encrypted.

Because if it was encrypted, then based on his understanding of this stupid system, it would be strange if it could be decrypted.

If this system is not given a data path, it will not know where to get data. It is like a three-year-old child who does not know how to eat if he is not given the bowl and chopsticks.

But Lin Yuan thought of another possibility: [System, you are not pretending to be a pig on purpose, are you? ]

[You can obviously crack the encrypted data, but you deliberately hide it? 】

If this is true, Lin Yuan has a bold idea.

[Well, if it’s possible, I mean if it’s possible...]

Lin Yuan recalled the last time he tried to use the system to mine. He fainted for two hours on the spot. So when he had an idea this time, he had to be careful and cautious: [System, I have an immature suggestion. If it doesn't work, don't mess with me, ok?]

Seeing that the system did not respond at all, Lin Yuan waited for a while, but finally timidly expressed his thoughts: [If you can crack the encryption, then is the encryption method of the video stream also RSA asymmetric encryption? ]

[I heard that Alipay also uses this encryption. ]

[Don't worry, I won't be stupid enough to let you add a few more zeros to my Alipay account.] (Of course, this is mainly because Alipay is a real-name system. Even if you add more zeros, it can't escape supervision)

[The transmission encryption method of those digital currencies should also be RSA-type asymmetric encryption. 】

[So, I don’t ask you to mine for me. You can just write a few zeros into the Bitcoin ledger for me.]

Soon, Lin Yuan added another sentence.

[System, I was kidding.]

I don’t know if Lin Yuan’s last sentence worked. This time, he was not confused by the system.

In fact, Lin Yuan’s request this time was even more excessive than the last time he proposed “let the system help with mining”.

Letting the system mine still has a production process, but Lin Yuan’s request this time is to let the system bypass the production process and record the accounts directly in the ledger.

This operation is indeed equivalent to letting the system directly attack the central bank headquarters of digital currency. I won’t pretend anymore, I’m going to show my cards. Anyway, digital currencies are anonymous.

Of course, Lin Yuan was joking with the system seriously this time.

But he still had a little hope in his heart - what if it came true, then he wouldn't have to work so hard anymore.

As the system remained silent for a long time, Lin Yuan's little hope finally turned into nothing.

Lin Yuan had to correct his attitude.

Now there are two possibilities: one is that the system concealed the ability to crack encrypted data from him; the other is that the video data transmitted by the network camera is mostly not encrypted.

To answer this question, we can only turn to technical information.

Lin Yuan quickly went online to check the home ecological interface information of the coarse grain factory. Unfortunately, he did not find detailed interface documents about the network camera. Looking at the introduction page on the official website of the coarse grain factory, it seems that companies with cooperative qualifications need to submit qualification review before obtaining interface information.

Well, Lin Yuan didn't have the energy to do this, and he didn't have a business, so he had to guess from the perspective of technical principles.

Currently, 1080P cameras on the market are already very cheap, and the price is often below 100.

Looking at the coarse-grain cameras that are priced at less than 70 yuan on the shopping platform and also have infrared night vision and intercom functions, Lin Yuan can feel the deep despair of Western developed countries.

What is Industrial Cthulhu? The finished product is much cheaper than your parts.

This is Longguo’s greatest confidence, and it is also just the tip of the iceberg of Longguo’s comprehensive industrial strength.

After a closer look, Lin Yuan discovered that this camera can not only connect to the coarse grain factory's cloud platform for free, but the cloud platform also provides about three days of free rolling cloud storage.

"Okay, if I start a business in the future, I will never touch this kind of common stuff. It's terrible!"

After being amazed, Lin Yuan would naturally think about the economic and technical principles behind it.

First of all, he believes that a mature enterprise will not do loss-making business for a long time. For example, a large Internet enterprise like the coarse grain factory cannot do loss-making business in the field of cameras with such a large shipment volume.

However, these webcams are ridiculously cheap.

There is only one possibility - give away hardware for free and make money through software, just like smart TVs.

Lin Yuan confirmed this after downloading a cloud manager for a coarse grain factory - the coarse grain factory relied on webcams to sell its own cloud storage and cloud computing services.

7-day rolling cloud storage only costs 69 yuan a year.

This price once again made Lin Yuan feel outrageous. If he bought a hard drive for his own home, 69 would probably only cover the electricity bill for a year.

Why should Lin Yuan care about the price? Because numbers are cold and will not lie.

Known condition 1: Merchants will never do business at a loss.

Known condition 2: The merchant’s seven-day rolling cloud storage only costs 69 yuan a year.

已知条件3：1080P的一帧画面如果是用RGB格式来保存，那就是1920*1080*3=6220800个字节。也就是6M多。按照一秒30帧来算，那就是每秒要对180M数据进行加密传输，然后云平台要对应做解密。

Even if a stealth method is used to compress the image resolution before transmission, the continuity of the video data and the resolution requirements determine that the bandwidth of the video stream data must be calculated in M/S.

With this bandwidth requirement, the computing power requirement is very high. 69 years a year obviously cannot cover the cost, and it is far from covering the cost.

So, considering the three existing conditions.

Unless the business is always losing money, it is impossible for every frame of the webcam to be encrypted.

Of course, Lin Yuan believes that all manufacturers must have security defense measures. However, network security has a primary premise, which is cost and risk considerations.

Lin Yuan guessed that the manufacturer probably used methods such as unique device codes and periodic security verification to carry out limited security control.

However, what the manufacturer does is not important to Lin Yuan.

What is important now is that Lin Yuan is almost certain that the system cannot crack the encryption, at least it has not shown such ability at present, which further confirms the fact that this is a low B system. (Whose system still follows objective scientific laws)

Another very important point is that the system can intercept data on the network.

[System, don't install it. Hurry up and download it.]

(End of this chapter)