Back to the Republic of China to be a editor

……

The time entered July 1950, and Tang Hua was coordinating the mass production of radio walkie-talkies by remote control. The reason why he only needed remote command was that Wang Zheng went to the Yangtze River Delta to watch the production plant of walkie-talkies. Tang Hua only needed to encounter technical difficulties. Or send a telegram when the plan is finalized.

The two projects of the Institute of Computer Science are the T51 general-purpose computer and the TC50 supercomputer. The T51 is waiting for the 20KHz high-frequency signal generator to be released, and the TC50 has been handed over to Lebedev for the mid-stage design after Tang Hua formulated the overall plan, and Tang Hua will not need to go to Shanghai in a month or two.

Now Tang Hua's headache is not his own Electronic Information Industry Bureau, but the Ordnance Industry Bureau.

The guided bomb became famous in the first battle in Penghu, and both bureaus received awards. In the past half a year, the two sides have cooperated very harmoniously, and the relationship between Tang Hua and Liu Nai has also become very familiar.

But Liu Nai, the director and deputy minister of the General Administration of Ordnance Industry, was going to Shanxi for a business trip.

This Liu Nai is still worried about the two arsenals in Chongqing and Taiyuan.He was very satisfied with Dalian Jianxin. He felt that he could do a good job without any management, so he focused his energy on the rectification and transformation of Taiyuan Arsenal.

When Yan Laoxi was in charge of Shanxi, he established a large-scale military industry complex in Taiyuan, which was even better than the regional military industry under the government. Not only was the system perfect, but the output was also high.

After the founding of the People’s Republic of China, we took over the Taiyuan Arsenal, and found that Taiyuan only looked beautiful: the guns and ammunition produced by the Taiyuan Arsenal were okay to use during the war. According to the formal industrial standards, Yan Laoxi’s military system is simply too bad. up.

The processing quality of the gun factory is not good, the tolerance of the parts is large, the quality of the gunpowder is unstable, and the materials used for the bullets are too inferior... The most terrible thing is that the gun steel that is the basis of everything is completely substandard.

Some of these are because Yan Laoxi can't buy genuine machine tools/processing equipment, and some are because Yan Laoxi doesn't want to spend that money.

In short, although the Taiyuan Arsenal has been rectified for half a year, the guns and ammunition produced by the state are still substandard products.

So Liu Nai was very anxious, and this year was the third time he went to Taiyuan to stay.

"Old Liu, you are trapped in the Taiyuan Arsenal." Tang Hua said.

"Alas, there are too many things to be rectified and remodeled in Taiyuan, and there are still a batch of machines that must be replaced, starting from the most basic ones." Liu Nai said on the phone.

"I think Taiyuan and Chongqing are going to be rectified, and Dalian can't let go."

"Dalian is very good now, and the quality is very good."

"No, Lao Liu, you heard the meeting at the Government Affairs Council on the 6th. The frontier defense in the northeast should be given more attention. Dalian may have new tasks next," Tang Hua said, "Just like the things we tinkered with. It was the same as it was used in the Penghu campaign, and Dalian also needs to come up with some new things to improve our equipment and technology level."

"Oh, I understand," Old Liu said, "Get some secret weapons. This one is good. Hey, but can't you just go?"

"...Old Liu, Brother Liu, if we do this, don't we have to talk to Vice Premier Chen first?"

……

Now Beijing can't find a chief accountant.As deputy prime minister and head of the Finance and Economics Committee and head of the Ministry of Heavy Industry, the chief accountant is now presumably in the Wuhan-Zhengzhou area to straighten out the economy and oversee the harvest of summer grain.

Bite the bullet, Tang Hua sent a telegram to the city where the chief accountant was located. After getting permission, he raised the reported grade by half and sent the report directly to the Prime Minister.

Chapter 45, work adjustment in the second half of the year

Report on the work adjustment of the Bureau of Electronics and Information Industry and the General Administration of Ordnance Industry in the second half of 1950:

50. After coordinating with the Intelligence Department of the Military Commission, the Electronic Information Industry Bureau developed the TC[-] supercomputer, and at the same time, the Intelligence Department of the Military Commission set up a deciphering team to crack the military encryption equipment currently in service in the U.S. military;

1. In response to the needs of the Communication Department of the Military Commission, the Electronic Information Industry Bureau adjusted the production plan and quickly mass-produced the D-[-] small radio walkie-talkie;

[-]. The General Administration of Ordnance Industry adjusted the development plan and production direction of Dalian Jianxin Company to cope with the situation on the Korean Peninsula and the needs of the Northeast frontier defense;

[-]. The second demonstration and development of new concept weapons and equipment will be carried out jointly by the Bureau of Electronics and Information Industry and the General Administration of Ordnance Industry;

……

The first item of the report aroused the prime minister's interest.During the period of the Red Army, it was the prime minister who established the first password system of our army, and this password system was never cracked until it was deactivated.Since then, the Prime Minister has participated in or personally reviewed every change in our army's encryption system, and "Hao Mi" has become a legend in classical encryption.

"To what extent can supercomputers be used for password cracking?" the Prime Minister asked.

"T50 is equipped with 12 computing units, TC50 has 160, and TC50 is equipped with a computer operating system, which is conducive to multi-tasking and time-sharing operations, and the algorithm is optimized for password cracking tasks." Tang Hua said, "The computer can operate in several Complete tasks that a team can complete in a day or two within seconds, and can process and convert extremely large amounts of data, or perform thousands of times of processing and conversion on the same set of data. In some cases, it is necessary to rely on the aura of password cracking experts Clues that can only be found at a glance can be solved by computers for "violent" calculations, which can also be completed in a short period of time. The use of computers for password cracking is likely to be a revolution in encryption technology."

"Will the current password system of our army be cracked by computers?" The Prime Minister asked the second question of concern.

"This..." Tang Hua blinked. In fact, he still doesn't know the specific information of our army's high-secret military code. "Some of them will be cracked by computers in a very short period of time, but the codebook-style one-time pad system cannot be cracked quickly by computers at present. Only when the entity is captured on the battlefield can there be hope."

One secret at a time is like when Ao Guanhai took a copy of "Water Margin" with him when he left China, and agreed with the chairman to use this version of "Water Margin" to encrypt the telegram, then the ciphertext sent out generally cannot be deciphered.Unless Hillary raids Ao Guanhai's residence and finds this "Water Margin" from his mobile phone, it will be destroyed.

But in most cases, tactical radio communication needs to choose a balance between efficiency and confidentiality. If the battalion commander sends a telegram to the regimental commander, it will take half an hour to decrypt and read it. This battle cannot be fought.Therefore, during World War II, the Allied and German forces mainly used cipher machines-rotor mechanical encryption/decryption machines.Germany's Enigma cipher machine was broken by Britain during the war.The United States uses the M-209 cipher machine. It may be that Germany is unlucky and has not found an effective way to crack it.During World War II, Germany also organized a deciphering team. After racking their brains, they only deciphered about ten percent of the M-209 telegrams, and it took a long time to decipher them, which has little intelligence value.

"That is the tactical radio that is mainly encrypted by the cipher machine. The key to deciphering this type of wireless telegram is to decipher it quickly. If it is deciphered very late, it will be of limited help to our army's operations." The prime minister said.

"As long as a sufficient length of text is collected, the computer system can complete the cracking of the cipher machine in a short time." Tang Hua said, "Even if the enemy changes the secret key temporarily, we can complete the cracking again within 4 to 8 hours. .”

The Prime Minister closed his eyes and thought for a while. "After the supercomputer is built, it will be placed in the northeast. Let's find a place in Jilin City, a little closer to the Fengman Hydropower Station."

Next, continue to read the report, the D-1 small radio walkie-talkie.

The prime minister is using it now. First, the prime minister used it to play with Tang Hua on the phone. Later, he sent someone to the door and snatched Tang Hua's walkie-talkie along with three other samples, so that the members of the Military Commission in Beijing could communicate with each other.

"Dalian Jianxin Company?...Well, you and Liu Nai have heard some rumors, right?" The Prime Minister raised his head and stared at Tang Hua, "Actually, the Military Commission and the Government Affairs Council are planning to issue new tasks to the various bureaus of the Ministry of Heavy Industry, preparing to adjust Part of the production plants, especially the military industry."

"Our Bureau of Electronics and Information Industry and the General Bureau of Ordnance Industry make preparations in advance, and there is always no harm."

"No, the Military Commission and the Government Affairs Council are still formulating mission plans." The decision to form the Northeast Frontier Army has just been made by the Military Commission. The next step is to mobilize several troops to go north. The prime minister plans to hold a preparatory meeting for logistics and equipment in a few days. According to The meeting decided to issue tasks to the industrial department and the military logistics department. "In the third and fourth articles of this report, you need to expand the content, prepare sufficient materials, and provide reference for decision-making."

Back home, Tang Hua let out a sigh of relief.Today is July 7. According to the Prime Minister, the Northeast Frontier Defense Force has been decided to be established. It is estimated that an official document for the establishment of the Border Defense Army will be issued soon, followed by decisions on equipment, support, and logistics adjustments.There should be no delays, but time is still tight.

……

Washington, the White House.

Truman called his staff into the Cabinet Room of the White House and asked their opinion on the use of additional troops.

Full-scale fighting has broken out on the Korean peninsula. The 13 People's Army is surging southward. The South Korean Army has basically disappeared. The US military stationed in Japan has only 3 divisions and 5 people, which may not be enough.

A few days ago, Chiang Kai-shek sent him a message, willing to send 5 Kuomintang troops to North Korea within 3 days to assist the United States and South Korea in defense.

"I don't think it's a sensible suggestion," Secretary of State Acheson said. "The presence of troops from Taiwan on the Korean peninsula could bring Chinese troops into the conflict and also weaken Taiwan's own ability to defend itself."

"Also, Chiang Kai-shek was a soldier with little to no heavy equipment and no proper training. The morale of these armies was so low that they were as useless as Syngman Rhee's army..." Army Chief of Staff Collins added, " They will even be driven around by the amphibious armored vehicles of the Chinese Communist Army, how can they resist North Korean T-34 tanks?"

Truman thought for a moment, "We should really decline this proposal."

……

South Korea.

On June 6, the United States decided to send troops. The 30th Division of the US Army stationed in Japan was the first to go to North Korea as the vanguard. Among them, the Smith Task Force (battalion-level combat team) was the vanguard of the vanguard. It was directly airlifted to Busan on July 24. The heaviest weapons are only 7mm bazookas and 3mm recoilless guns. On July 60, Task Force Smith fought for the first time in Pyongtaek, and encountered the 57rd Division of the People's Army plus a tank regiment.In the first battle, the Smith Task Force fired 7 rockets at the rushing T-5 tank. They either flew or failed to penetrate the armor. Instead, they were swept away by the tank machine gun. The dead are born.

The task force let go of the tanks and switched to the trucks of the follow-up People's Army, which caused a lot of trouble for the People's Army, but in the end they were surrounded and wiped out by the People's Army, and only 800 of the more than 250 American troops fled back.The People's Army occupied Tian'an, an important transportation point, and marched towards Daejeon along the Tian'an-Quanyi-Wuzhiyuan Highway.However, Task Force Smith won 24 hours for the 24th Division. The 24th Regiment of the 34th Division of the US Army used this time to rush from Busan to Daejeon to start defense. The 34th regiment resisted in Daejeon for two days. By July 7th, the 8th regiment was defeated by the 34rd and 3th divisions of the People's Army and the tank regiment. Colonel Martin, the head of the regiment, was shot and killed by a tank while holding a 4mm rocket launcher. .

The resistance of Task Force Smith and the 34th Regiment bought time for other units of the 24th Division. The main force of the 24th Division, including a light tank battalion, was finally shipped ashore from Busan. Starting from July 7, the commander of the 9th Division Di'an arrived at Wuzhiyuan and deployed the main force along the road to block the People's Army.

In fact, the entire 24th Division is also a consumable used for sacrifice, buying time for more US troops to arrive in Busan.Later, the 24th Division was also disabled, and the division commander Dean was captured.But while the 24th Division continued to send its own troops to the People's Army to eat, Busan Port was already at full capacity, and more than 1 tons of supplies were unloaded from here every day. The 25th Division of the US Army and the First Cavalry Division boarded Landed on the Korean peninsula.In addition, more U.S. troops are being mobilized around the world, ready to be shipped to South Korea, and the U.S. Air Force has gradually increased the frequency of flights over South Korea.