"This is the message intercepted today, and I have put it all here." In the bright sunshine, an officer placed the encrypted messages in his hand on the spacious desk.

A bespectacled professor looked up, sighed slightly, and complained, "We've been trying for two months, and it's been a waste of effort." ”

This place is in a quiet farm in the suburbs of New York, and belongs to a secret intelligence organization of the United States.

This organization, which was directly under the command of the US Army, was to use all possible means to decipher the ciphers that were being used in Germany.

You know, these mathematicians and cryptography experts are not vegetarians, they are placed in the university, and each of them is a well-known senior professor-level expert.

Moreover, they have experience in codebreaking, they have deciphered the cipher codes used by the Japanese Navy, and they have helped the U.S. Navy regain some of the initiative.

About half a month ago, Japan didn't know where to get a hint and changed its password rules.

So now, about half of the staff has been assigned to the Japanese codebreaking team.

The professor took a sip of water, looked at the officer standing in front of him, and said, "I want to go to the Japanese codebreaker to help, there is really nothing I can do here." ”

The use of Japanese ciphers is almost the common level of this era, so the means required to decipher Japanese ciphers are also common in this era.

This is also the reason why the Japanese codebreaking team only needs time to decipher the code rules.

But the German cipher is different, it can be said that it is very different. Because the German code seems to have a brain, it is simply undecipherable.

Anyone who has studied mathematics and understands cryptographic compilation knows that there is no such thing as a cryptographic system that cannot be deciphered.

However, if the cipher system is changed frequently, it can reach a level that is almost impossible to decipher.

The speed of the German army's password change and the complexity of the password setting law simply made the American codebreaker experts despair.

Unbeknownst to them, of course, the reason why the German code was so difficult to decipher was because there was a team of German codebreaker "experts" who were deciphering their own code at every moment.

On the other side, there is an equally professional team of cryptographic compilers, who are designing new cryptographic systems every day for emergencies.

The previous German codebreaker team used a slightly backward previous generation of computers.

When the computer and its deciphering team deciphered the ciphercode used by the Germans themselves, the deciphered code was discarded.

The next German password setting team uses the most advanced computer equipment in human beings that has just been manufactured.

Because the speed of the new generation of computers to set the password rules is greater than the speed of the old computer to decipher, so the German password rules can always ensure that a large number of preparatory rules are available.

It is with these devices, and a team of experts who work around the clock, that the code rules used by Germany have collapsed the codebreakers in the United States.

No matter how hard humans try, how can they surpass computer equipment. After more than 5,000 calculations per second, how many people need to manually calculate and decipher the code?

At first, the U.S. codebreaker didn't think there was anything beyond imagination about the German code.

The Enigma cipher machine is not a new thing, and the United States has long received from its ally Britain, the experience of Polish and British mathematicians in deciphering it.

However, as time passed, the American codebreaking department gradually discovered that the German army's codes were becoming more and more difficult.

In June 1940, the German army had been using the method of frequent code book replacement to prevent the enemy from stealing the contents of the message.

By August 1940, the German army was using a new generation of multi-gear new Enigma cipher machines, and the encoding system was used to disrupt the cipher encryption conditions.

A month after Britain's defeat, Germany began to use a new password encryption law and adopted a more scientific rhythm of password replacement.

The end result was that the German cipher had been a black hole that had never been deciphered since October 1940.

The German code could not be deciphered, and the American top brass could not accurately obtain the strategic movements of the German top brass.

Unable to obtain this movement, the U.S. military would not be able to concentrate on dealing with the Japanese Navy in the Pacific.

Of course, with the mobilization capacity of the United States, it is still possible to regain local superiority in the Pacific in 1942.

"The Germans changed their passwords in a timely manner, and when we were just halfway through the calculations, the Germans had already changed their passwords...... How do we decipher this? The professor complained.

The group he leads has been tormented by German ciphers for a month. In the course of a month, he touched the threshold of deciphering the German code countless times, but found that there was another threshold in the threshold countless times......

It's like pushing open one door after another, only to find that the inside of the door is still a door, which is a very desperate cycle.

"General Marshall, for his part, thinks that the Germans are deciphering their own code, and using this decipherment speed, to guess our ......deciphering speed," the officer reluctantly explained.

He came here a lot, and of course he knew how low the morale of these experts had been because of the frequent failures, and if he didn't comfort them, these people might have committed suicide.

"That's what General Marshall said? What are you kidding, where did the Germans get the confidence to think that their calculations are the fastest and most accurate in the world? The math expert asked rhetorically in disbelief.

Could it be that the other party has summoned more tellers? Thousands or even tens of thousands of people are calculating to decipher their own codes? Joke...... This is probably one of the dumbest password protection measures......

"That's what General Marshall said? What are you kidding, where did the Germans get the confidence to think that their calculations are the fastest and most accurate in the world? The math expert asked rhetorically in disbelief.

Could it be that the other party has summoned more tellers? Thousands or even tens of thousands of people are calculating to decipher their own codes? Joke...... This is probably one of the dumbest password protection measures...... Joke...... This is probably one of the dumbest password protection measures......