Back to the Republic of China to be a editor

Ambassador Wang is about to step down from his post as ambassador to the Soviet Union and return to China to become the head of the Central International Liaison Department. He will be succeeded by Zhang Wentian.

"I also want to take a plane, but it's really not safe enough. I had to climb back slowly by train." Tang Hua made a helpless expression.

"It's said that it's okay now. The Sino-Soviet Express train has been newly opened. It only takes fifteen or six days to return to Beijing from Moscow. Unlike when I came to Moscow, I stayed on the train for a full month..."

……

Jilin Jiaohe, 50 Center.

"Are you all ready?"

"Everything is in place, Minister Wang."

Wang Yongjun looked around, the supercomputing hall has removed all the items and decorations that do not need to appear here, the modified version of the T50 computer has been moved to a room next to the supercomputing hall, and there are two modified TC51s in that room computer.The TC50 supercomputer in the center of the supercomputing hall has stopped running and has been cold for a long time.

Wang Yongjun clapped his hands, "Then let's start."

All the staff present worked together to disassemble the TC50 supercomputer and turn it back into 12 independent cabinets.Unlock the small wheel card lock under the cabinet, and then two people push one by one, and push the TC50 out of the supercomputing hall one by one.This supercomputer, which has made great achievements, has been running in the 50 center for five months. It has been invincible against the passwords of the US military's M-209 system. It has strongly supported the Volunteer Army's operations in the first to third battles. In the previous battles of our army, there has never been such a transparent situation of intelligence.

"Old man, let's use it in another place." Wang Yongjun patted the last cabinet that was removed from the supercomputing hall.

Then, another long row of cabinets was pushed in by more than 20 people.The length, width and height of the cabinet are similar to those of TC50, except that the color of the paint on the cabinet shell is slightly different, and the words "TC51" are printed on the shell.

China's second-generation supercomputer, the world's first computer with a computing power of one million operations per second, TC51, settled in Jiaohe 50 Center today.

The next few days happened to be the few days with the least workload in the work cycle of the 50 centers.Some time ago, the three armed forces of the U.S. military changed the keys of the tactical radio, and it took less than a day for TC50 to crack them respectively.There will be a period of time in which it is no longer necessary to run the TC1 to crack the password to obtain the key, as long as the modified version of the T50 computer runs the decrypted virtual machine.

Although so far, the US military’s tactical radio stations and military-level radio stations in North Korea are still the same, and continue to use M-209 and M-209 derivatives, it does not take much effort for TC50 to crack these codes.But Tang Hua's supercomputer development roadmap is set in this way. When the time comes, the new generation of computers will be successfully developed, and then they must find a place to use them.The War to Resist US Aggression and Aid Korea is still going on, and the possibility of the US military switching to a new and more complex mechanical cipher machine cannot be ruled out. Therefore, the most suitable place for supercomputers is obviously the 50 Center.

Wang Yongjun has read the manual of TC51 in advance, and the concept of "operating system" makes Wang Yongjun feel novel.How to optimize the cracking program on the TC51 computer so that the computing power of this computer can be fully utilized has become the number one problem that Wang Yongjun has been thinking about day and night these days.

Even without further optimization of the cracking program, based on the computing power of TC51, the M-50 cipher, which took several hours to run on TC209, can be solved in one or two hours on TC50.Based on M-209, a hand-encrypted U.S. military-grade password is superimposed. It takes a little more than 50 hours to crack it on the TC24. If you use the TC51, it only takes about 6 hours. It is almost the same as before. Passwords take about the same amount of time.

The cabinets were pushed into the supercomputing hall one by one, and they were arranged in a big X shape according to the predetermined order and position. Among the staff, they walked out with only their strength, and the remaining five or six people were connecting wires and data cables.Wang Yongjun closed his eyes and meditated, his head was already full of various mathematical formulas and flow charts.

……

Switzerland, Crypto AG company headquarters.

"Hello, Mr. Hagelin, Mr. William Friedman asked me to send you my regards, and I have brought you a letter from him."

"American Brunswick" chatted cordially with Hagelin's boardroom.Of course, Brunswick is a pseudonym, and his identity is also false. He is an agent sent by the CIA to Switzerland.The purpose of his coming to Switzerland was to reach Hagelin and reach an agreement with him.

Hagelin opened the letter.As peers and the world's top cryptographers, Hagelin and Friedman were good friends during World War II.After the war, Hagelin went to Switzerland to set up a company to make a fortune, but he continued to keep in touch with Friedman.

Friedman's letter was just a short one page, and he didn't play encryption and decryption games with Green as before, and wrote in plain text.

After reading the letter, Hagelin looked up to Brunswick and said: "The most advanced encryption machines can only be sold to countries approved by the United States, and the rest of the countries have to buy old systems-but now 95% of our company's products are M-209 and the civilian version of C446, there is no difference between advanced or not. The main buyers of M-209 are you.”

"Our suggestion to you is that M-209 and C446 are prohibited from being sold to the Soviet Union, Eastern Europe, and China. In addition, there may be some small and medium-sized countries that stand on the opposite side of the United States. The list of these countries may change at any time."

Hagelin fell silent.

"The CIA is willing to provide Crypto AG with compensation of $70 per year."

"That condition struck me a little bit," Hagelin said. Crypto AG now has annual sales of more than 1000 million, and its net profit is actually less than 300 million per year.

"Actually, I have another suggestion," Hagelin paused, and continued, "Does the U.S. military think it's time to replace the M-209? In fact, I have a more powerful cipher machine here, which is not yet on the market. But it's harder to crack than M-209."

"I don't know about this. But the military has not raised such a demand yet. But I can be sure that if the Chinese military wants to change the standard cipher machine model, they should give priority to Crypto AG. Not only because of Crypto AG's technology, but also because of the great relationship your company is about to develop with the U.S. government.”

Chapter 128, banning the export of computers to China?

In the history of the Eastern Front in World War II, Kharkiv is probably the most well-known city.Germany captured Kharkov three times, and the second and third times were the successful counterattacks of the German Jedi, which triggered the Battle of Stalingrad and the Battle of Kursk respectively. In the fourth battle in August 1943, the Soviet Red Army finally completely drove Manstein and his Southern Army Group away.

Kharkov can probably be equivalent to Siping City in the Soviet-German War, but the scale of the four Kharkov battles is an order of magnitude larger than the four Siping battles.

Right now, Tang Hua is getting off the train at Kharkov Railway Station and heading to the Soviet Artillery Radio Technical Academy. School of Radio Engineering.

The plan has been set. A month later, a large number of officers and non-commissioned officers of the air defense missile unit of the Volunteer Army and the Korean People's Army will come here to receive the operation training and maintenance training of the S-25 air defense missile.After graduating from the short-term training course, they will go back to operate the S-25 air defense missile system.

There is no suspense for a new round of missile tests in Kapustin Yar on March 3.In the last round of test firing, the chief division temporarily decided to add a program to hit a medium and high altitude target, which proved that the improvement of the missile had been successful. Tang Hua didn't want to watch the test launch on March 10.On the contrary, the Institute of Radio Technology has something to do - it needs to formulate training courses for air defense missile units.

It’s nothing more than just compiling tutorials. The bigger trouble is that the S-25 tutorials must have three language versions: Russian, Chinese, and Korean.

"Good day, Comrade Lieutenant General Gerasimov."

"Hello, Academician Tang Hua."

"The compilation of the Russian and Chinese versions of textbooks is going smoothly," Gerasimov said, "but the Korean textbooks are not enough manpower, and the quality of compilation is also very low."

The operators of the air defense missile system are roughly divided into 3 professional directions, and a total of 6 special textbooks need to be written.Two of them were written by Tang Hua, the initial version is in Chinese, and the derived version is in Russian.The Russian version was written by Tang Hua himself, which is basically the quality of the original version.The initial versions of the other four textbooks were in Russian, which were translated by staff organized by the embassy in the Soviet Union, and then approved by Tang Hua. In short, there were no problems with the Chinese and Russian textbooks.

Now the North Korean embassy in the Soviet Union has extremely streamlined personnel, and there is not enough manpower, so it can only send one clerk to Kharkov.Moreover, this clerk really didn't have any knowledge of electronics and weapons. He wasn't born in science and engineering, so his work efficiency and quality couldn't keep up.

"Comrade Lieutenant General, I have a suggestion," Tang Hua said, "to cancel the Korean version of textbooks."

Gerasimov touched his nose with his hand, thought over and over again, and said, "If the North Korean military cannot send enough soldiers who have lived in the Soviet Union, what should we do?"

"There are not enough North Koreans who have lived in the Soviet Union, so we should choose Koreans who have lived in China," Tang Hua said. "There are actually many more North Koreans who understand Chinese than Russian."

At the beginning of the Korean War, most of the officers and technical units of the Korean People’s Army knew Russian. These are the old foundations of the old Anti-Japanese League and the Korean Anti-Japanese Guerrilla. However, in the past half a year of fighting, this group of people has already died. about there.

There were a large number of Koreans living in Northeast China. After North Korea was destroyed, a large number of Koreans came to China to seek refuge because of the resistance against Japan and the restoration of the country, or because they simply could not survive. These people reproduced in China to the second generation. If they can read, Eighty percent know Chinese.

…Actually, even in North Korea, many North Korean families teach their children Chinese from young intellectuals.

Now that there are two textbooks available in Russian and Chinese, it is also possible to draw a batch of officers and soldiers of the Korean People's Army who understand Chinese.

The Institute of Artillery Radio Technology has a wealth of western technical materials and periodicals. In fact, this school also developed computers in the early Soviet Union... But look at the T50 in the computer room of the library. It is estimated that they will only use computers and not develop them in the future. .Tang Hua took a few stacks of British magazines and flipped through them casually. When he saw a super nonsensical report, the milk he was drinking spurted out of his mouth.

"Batumi passed a new batch of trade embargo lists against China, which are more severe than the Soviet Union"

The Multilateral Export Control Coordination Committee, since it was established as Paris, is often called the Paris Export Control Committee, or Batumi for short.

"In the list of embargoes against China, in addition to all military equipment embargoed against the Soviet Union, as well as industrial products and industrial technologies that may be used in military equipment, 6 additional commodities such as ships, cableless communication systems, and equipment have been added. , components, internal combustion engines, steam turbines, high-grade gasoline and aviation kerosene..."

"The embargo on computers and electronic products to China is the same as that of the Soviet Union, and in the list of such embargoes on the Soviet Union, in addition to prohibiting the sale of digital and analog electronic computers, the prohibition of the sale of designs containing amplifier circuits and computing circuits has also been added. mechanical and electrical products..."

China and the Soviet Union are not allowed to buy American computers, yes, it seems that his computers are very rare.

In 1947, Shockley's thesis expounded the quantum explanation of the amplification effect of silicon germanium. In the same year, the first germanium transistor was trial-produced. Shockley then designed a cheaper silicon-based transistor.However, the U.S. military had little interest in transistors. In 1951, at this time, Shockley was having an ideological struggle over whether to stay at Bell Labs or resign and go to the sea to set up a company to produce transistors.The United States first applied transistors to computers in 1954, and the first commercial electronic computer with all transistors was born in 1958.

Although the T50 has been out for more than a year, until now, there is no Anglo-American computer that can compete with the T50.The computing power of the few tens of tons in the United States is only a fraction of that of the T50.

Not to mention the T51 with doubled computing power.Moreover, T51 plus card punching machine and printer, in the commercial and administrative fields, also kills UNIVAC-1 in seconds.Although Remington Rand began to officially announce the UNIVAC-1951 in 1, the first delivery time has arrived in 1952-Remington Rand is also a master at drawing big cakes.

It's a pity that in recent years, computers cannot be sold reversely to Western countries, otherwise they can earn a lot of foreign exchange.