A nation's industrial development begins with junior engineers.

The thought of eating twice-cooked pork with the author of "The beautiful rivers and mountains are restored, and all the people are masters of their own destiny" filled Jiang Xia with energy.

Haha, after getting a free meal with this guy, I'll be that old man with his sword drawn! Hehe, just thinking about it makes me happy!

As for the encryption method?

Of course, it's the standard version of DES!

This is currently the most reliable encryption method that DaHuang can use. The program is small; it only takes two pages to write down.

The classic symmetric encryption algorithm is easily countered by the current algorithm, and its 64-bit key length, with 56 bits used for encryption and the remaining 8 bits for parity checking, coupled with initial permutation, 16 rounds of iterative encryption, and inverse initial permutation, makes it so difficult to crack that even if all the computers in the world were chained together, they wouldn't be enough!

Okay, look carefully, this is for now. If you try to use "Sun Wukong" as a weapon, Little Ao Mao will have no choice but to beg for mercy...

(This is actually a password system commonly used by compression software in later generations. Remember when you downloaded a compressed file from the internet that required a password? Tsk tsk, girls back then were truly naturally beautiful.)

Secretary Liu looked at the C language code written by Jiang Xia and kicked Old Wang, who had sneaked over, aside.

After Jiang Xia finished writing, the red seal in his hand began to clang and clatter busily again.

"This needs to be used with rhubarb?"

"Of course! 64-bit encrypted text, isn't that amazing!"

What are the key management points?

"Yes, it's key management. The DES encryption algorithm requires the same key for encryption and decryption, so key management is the biggest security risk."

"Oh! Just keep an eye on the people, right?"

Jiang Xia thought about it and realized that there should be violent attacks, but with the current computer technology, even integrated chips haven't been developed yet, so how far could the violence go?

By the time the outsiders catch up, our own "Big Yellow" will have evolved several generations, and then we'll have to use asymmetric encryption algorithms (like RSA)...

Well, we don't even need RSA. 3DES (an improved version of the DES encryption algorithm that uses three 56-bit keys to encrypt the data three times) is enough.

Therefore, Jiang Xia nodded in agreement with full confidence.

"That's settled then! I'll send the sample to the relevant personnel for testing right away! However, using rhubarb is a bit expensive..."

"Don't worry, look at Teacher Lan Ying's side. Once they've mastered the process, it's not a dream for each of them to have one!"

"Can costs be reduced?"

Jiang Xia nonchalantly pointed outside: "There are plenty of suckers out there. Why don't you try selling that network protocol to Big Brother? You can't earn rubles, but you can at least ask for some conditions!"

"Selling to two companies? Your confidence is inexplicably strong..."

"Technology is productivity! That's how awesome we are!"

Secretary Liu nodded in understanding, packed her things, and quickly left.

However, the saying "technology is productivity" is not entirely wrong. Do you know who first came up with this slogan?

It's that leader from the eldest brother's family who likes to grow corn!

Unexpectedly!

……

At this moment, at the Lubyanka Grand Hotel, owned by the elder brother.

Their minister frowned as he looked at the report that had just been submitted. Well, don't be surprised why he's always bothered by these reports; it's just that Lubyanka's influence is a bit too much.

After all, this minister's famous saying is: "The scepter is right there, but if you don't reach for it, it will never fall into your hands!"

That's absolutely true. With his persistent intervention, everyone else tacitly accepted the matter, and relevant personnel would submit a document to him for approval for various external matters.

Normally, the minister would be in a good mood upon receiving such "extra" reports, but this time was different.

"Comrade Khalil! I need an explanation!"

The white-haired old man in front of him trembled: "Minister, uh, maybe the comrades think their stuff is really useful?"

"Especially this report you have here, it was printed using the new printer that our comrades in the south have come up with."

"Hmm? It's not much different from a typewriter, is it?"

"No, it's different, Minister! This document was edited on the computer and printed directly! Most importantly, it can be printed repeatedly! We don't need to do anything extra! Every document prints out exactly the same thing!"

Karil couldn't be more satisfied with this feature of the printer.

Think about submitting a report normally. For the same content, he has to repeat the same work on the printer at least four times!

Oh, no! It's five times!

Adding to the mix is ​​this minister whose job is completely unrelated, who has to type the draft five times on the printer!

If it weren't for the need for an application to import goods from his friend in the south, he would have bought one for himself. One at home, one in the office—this is a dream come true for copywriters!

"Oh? Is that really so?"

The minister was somewhat tempted, after all, he also had to submit a report. Although he didn't have to do it himself, he would still be criticized if the typist made a mistake.

After being criticized, he couldn't very well blame the typist, after all, the typist's job was... well...

Yeah, you know what I mean.

"But this quantity is too much! Not only are you buying so many printers, but you're also increasing the quantity of those transistor computers you're purchasing?"

"Minister, the printer is a new product from our comrades in the south! We are currently in the 'trial' phase and have not made any purchases yet."

"As for transistor computers, they're designed to work with printers. Without them, we can't drive the printer module."

Through the conversation, Khalil realized that the minister was nothing special, not even knowing that computers and printers were peer-to-peer.

A sense of superiority arises in those who are cultured and look down on the illiterate.

“Minister, isn’t this a concrete manifestation of our leader’s call to ‘enable the people of the Alliance to live a better life’? Besides, these things from our friends in the South aren’t expensive at all…”

Point-to-point? One computer paired with one printer?

This sounds just like how we sell technology products to our friends in the south.

The minister, holding the long list, inadvertently blurted out what was on his mind as he looked at it.

"Uh, give and take? That's a very normal phenomenon between countries!"

Khalil spoke with absolute certainty.

"I don't care about all that! I'm never using that slow typewriter again! As for the price, ha, I bet you dare add a zero to the end!"

Sure enough, the minister pondered for a while, and under Khalil's expectant gaze, he began to scribble and draw on the report before tossing it over to him.

Khalil looked at the minister's signature in the lower right corner and smiled with satisfaction.

Uh!

Wait, wasn't it supposed to be 1,000 units imported? How come the quantity has been changed to 50 units? And the intended use is specified as being for Lubyanka's use first? As for the price, well, the price hasn't been changed this time.

No, look at the instructions this minister wrote! His own machine is to be tested by these people first?

How can this work!

Khalil was somewhat anxious about the lack of advanced office equipment.

If you play with the printer again, I'll be a Siberian Husky!

"Your Excellency, when we received the printers, our friends from the south said they had discovered a method for quickly transmitting information!"

"It can be transmitted via computer! And it can be encrypted! The computer will automatically decrypt and print the information after receiving it! I believe this will be very useful to your department!"

The minister looked up, puzzled, and said, "Really!"

Khalil nodded vigorously: "Our friend in the South said that if we need it, he will provide the program for us to try as soon as possible! In addition, according to that friend in the South, there are also people in the Western camp who are eyeing this thing!"

"Sukabul! Tell that man to submit it immediately!"

The minister sprang up like a spring. Our friends in the south are so unfair! Don't they know we're in a standoff with the people in the west?

This is good stuff, we absolutely cannot let them get it!