Qin Feng left.

The three of us stay here. You look at me, I look at you, and then you look at the splendid houses all around. It feels a bit like a dream.

You know, in China, their accommodation environment is not bad.

But that's just compared to ordinary people.

Basically, it means living in a building with two bedrooms and one living room, which is relatively spacious and bright.

At that time, they already felt very good.

However, when I came here and looked at this manor villa, one bathroom was almost as big as their entire room.

Thinking about this makes me heartbroken.

The house I was once proud of is now only the size of a bathroom, and not as luxurious as others.

Of course, they were quite touched by the importance they attached to Qin Feng.

Now that they live in such a luxurious manor villa, if they don't think highly of them, that's definitely not the case.

Otherwise, who would waste this money?

There are also various training facilities.

This is comparable to the army.

Moreover, there are many more guns than the army.

"Okay, everyone, please find a room to rest." The gun-scarred man grinned, "Since there are three of us, we must have priorities. So, we will have a game later to decide who is the boss!"

The other two people had different expressions, but in the end they all nodded in agreement.

At this moment, Qin Feng returned to his RV after leaving.

Although, the manor and villa also made Qin Feng's heart flutter.

Moreover, Qin Feng now doesn't have to stay at school at all. He can also live in a manor villa.

However, that place is not safe.

For Qin Feng, this is the case.

That place was too spacious and there was no privacy at all.

Of course, the privacy in Qin Feng's words is different from the privacy in the eyes of ordinary people.

The place is so big that once someone invades, you have no idea.

Although Qin Feng has no secrets.

But once the secrets he possesses are discovered, the world will be shattered.

When the time comes, I'm afraid the world will not tolerate it.

Therefore, Qin Feng must be careful. And this RV is undoubtedly the safest place.

Of course, it's not really safe.

If the other party really wants to force its way in while you are away, the things in your computer may not necessarily be saved.

For example, the other party comes directly to remove the hard drive and then copies it.

Copy the entire hard disk data. In this way, even if the data is accidentally damaged, it doesn't matter much. The other party can try it slowly.

If it breaks, make another copy.

Therefore, you have to think of a way to lock the data on this hard drive to prevent it from being copied.

Qin Feng originally wanted to talk to Boss Ming on the phone about this incident.

Boss Ming has already told me before that if there is any result, let him know.

Although Boss Ming can't change anything, he can make some preparations.

However, Qin Feng suddenly thought of this and gave up the idea of ​​talking to Boss Ming.

For Qin Feng, overall, he is still an IT man. In this regard, like other IT men, if he has any ideas, he must put them into action.

It won't work if we don't solve the problem.

Therefore, this study only lasts for one week.

For a whole week, Qin Feng only stayed in the RV and went out to eat.

However, within a week, Qin Feng had achieved results.

The hard drive can indeed be removed directly and then copied.

This data cannot be prevented from being copied.

This is a physical plug-in, and your software cannot defend against it. How can you defend against it even if the system is not turned on?

Therefore, only the entire hard disk can be locked.

When reading data from a hard disk sector, unlock it directly. If you don't unlock it, you can't read it.

In this way, logging in will indeed be very troublesome, and you need to enter a password of at least 32 characters.

And the password includes uppercase and lowercase characters, as well as various symbols.

Such a password can theoretically be cracked, but it will require countless attempts.

Qin Feng estimated that with the current computing power of human computers, it would take at least a million years for a supercomputer to crack it.

Of course, if it is grafted onto computers all over the world and cracked together, it will be very fast.

Maybe it will be cracked in less than a year.

However, the problem is that you can't graft it.

If you crack it, Qin Feng has set a limit, that is, if you try 10 times and still fail, all data will be automatically destroyed.

The reason for doing this is that the data is too long.

32 bits, and also includes uppercase and lowercase characters, as well as special symbols. This makes Qin Feng very stressed.

If you are not careful, you may make a mistake. Therefore, Qin Feng gave himself 10 chances to make a mistake.

It sounds like 10 times is a lot of chances to make mistakes.

But for trying to crack it, it will be automatically destroyed after 10 times, so what else can be done?

Of course, Qin Feng also assumed that the FBI would crack it. If it could be cracked to the extreme, a software could be implemented and grafted. At the same time, a large number of computers would be cracked together.

But that requires a medium, which is a hard drive.

You must copy enough hard drives at the same time and then crack them at the same time. After the software is planned, password cracking can be grouped.

In that way, grouping and cracking can be carried out.

However, there is a premise for this, that is, you have to get so many hard drives.

Qin Feng estimates that if he wants to crack it within a year, at least hundreds of millions of hard drives will be needed.

Of course, this may not be enough.

Because a hard drive can only be cracked 10 times.

After 10 times, the data is automatically destroyed.

Of course, with this destruction program, it is impossible to physically erase all the data at once, and it will need to be erased multiple times.

So, according to Qin Feng's calculations, a hard drive theoretically has three chances to try. That is 30 cracks.

100 million hard drives is not a small number.

And, this is not enough.

If you really want to crack it, well, get 10 billion yuan and see if it's enough.

After all, a 32-bit password, a password with uppercase and lowercase letters, and special symbols, has a total of...

Qin Feng did a rough calculation and found that the numbers were really astronomical.

26 uppercase letters, 26 lowercase letters, 10 numbers (0-9), a total of 62, plus those special symbols that can be used, a total of 68, then the 32-bit password has 68^32 (62

to the 32nd power), which is about 2.272657884496751e to the 57th power, a super astronomical number!!!

This is really a shocking number.

10 billion hard drives are not enough.

Therefore, Qin Feng was relieved at this moment.

However, these 32-bit passwords, including uppercase and lowercase letters, and special symbols, gave Qin Feng a bit of a headache.

Although I have always had a good memory, it is possible to make mistakes with such a long password.

In particular, human memory is very unreliable in some aspects.
Chapter completed!