At 8:20 in the morning, Shi Tiezhu came to Sister Mengmeng's room.

Three and a half hours had passed since Shi Tiezhu received the third ciphertext.

As soon as he entered the door, he saw that Sister Mengmeng's expression was very solemn, and Shi Tiezhu's heart also rose: "What's the situation?" ”

"Not optimistic." Sister Mengmeng said carefully: "The encryption level of this third ciphertext is higher than I expected before, and it uses very advanced spiral encryption. ”

"This spiral encryption is arguably one of the most cutting-edge achievements in mathematics and computer science today, and every decryption is like spinning in a spiral chain. With each revolution, a larger chain will be deconstructed, the amount of data will increase exponentially, the difficulty of deconstruction will continue to increase, and the functions, functions, functions, and so on will continue to change. ”

"I can't use computing resources in a big way right now, so the deconstruction process isn't fast."

"I kept tweaking the algorithm and found a relatively suitable way to run this piece of information three times. What used to be only a few tens of bits of data has now expanded to eight megabytes, and it is far from over. ”

"The first lap of the run was blank, as if it was a garbled code with no valid information. But when she ran to the second lap, she interpreted one word - "Sister Mengmeng raised a finger, with heavy pressure in her eyes: "Dangerous." ”

"Dangerous?" Shi Tiezhu's eyes widened: "This is really a warning message." But who is at stake? Why is it dangerous? ”

"I don't know why it's dangerous, but who is in danger has been answered in the third circle, and that's why I'm looking for you." Sister Mengmeng said solemnly: "The decoding result of the third circle is four words - Mars base. ”

Shi Tiezhu's eyebrows immediately furrowed: "Mars base? Which Mars base? At present, Mars has seven garrison bases, four scientific research bases, five ecological test bases, three equipment bases, one communication and deep space exploration base, and two auxiliary bases. ”

Sister Mengmeng shook her head: "I don't know, I didn't specify it." Although the size of the code reaches 8 megabytes, deconstructing the ciphertext is not the same as transmitting text, and the 8 megabytes of ciphertext can only carry the margin of four words, and the sender cannot write more content. ”

Shi Tiexin asked, "How is the progress of the decryption in the fourth circle?" ”

"Solving. It took me 30 minutes to improvise an intelligent algorithm that trained itself and adjusted the decryption method based on the sample size. The fourth lap will take less time than expected, but it will take about three hours. Sister Mengmeng clasped her hands to her chest and frowned: "More than three hours, too long." ”

Shi Tiezhu nodded.

Indeed, the soldiers are very fast, and three hours is indeed too long.

But this warning has no beginning or end, even if you want to react, how should you react?

"Now we have two paths."

"The first is to report to the Coalition Garrison Command, and then indiscriminately let all bases be on increased alert. Second, contact the earth through quantum communication, and let the headquarters of the Secret Bureau send more advanced and accurate decoding algorithms, or we can send the data over there for decoding to speed up the decoding. ”

"I'm going to go both together."

Sister Mengmeng's eyes were cautious: "This matter is a bit suspicious of making a fuss, but when it is constantly disturbed, it must be reported when it should be reported." Tiezhu, you come with me, and we will go together to explain the situation to the Allied Garrison Command. ”

"Good!"

The two strode out of the door.

Hmph, the electric door opened, and Sister Mengmeng took the lead and entered the bridge of the Advance.

The bridge of the Advance is divided into three levels, the third is the operator, the second is the captain, and the first is the commander. Seeing Sister Mengmeng enter, someone inside immediately stood up and shouted, "Salute!" ”

Sister Mengmeng returned the salute, nodded and said hello to the captain working below, and then came to the commander's seat, and suddenly opened the communication with the land command of the Garrison Coalition Army, and communicated with the commander of the coalition force.

Shi Tiezhu stood up and stood by Sister Mengmeng's side.

Standing on the bridge, Platinum's piloting skills naturally reacted. Shi Tiezhu felt that this platinum piloting technique also had a corresponding bonus to the piloting of spaceships. Come to think of it, this driving skill comes from a space age that is at least intermediate, and it is only natural to have this level.

Sister Mengmeng was communicating with the commander of the coalition forces, while Shi Tiezhu was subconsciously scanning the operations of the operators below while listening to the communication between the two.

"Alarm signal? Are all Martian bases in danger of unpredictable occurrence? The commander of the coalition forces is also a Chinese officer, and the eyes on the screen are looking at Sister Mengmeng seriously, with a great sense of oppression: "Do you know what you're talking about?" ”

"Yes, I know that." Sister Mengmeng was not afraid and insisted on her opinion: "I am still deconstructing that secret message, the specific method and time of occurrence of the risk are not yet clear, and it is not possible to prove or falsify the authenticity of this message for the time being, but I suggest that the Mars base prepare." ”

The commander of the coalition forces looked at Sister Mengmeng deeply for a long time, his face was gloomy, and he whispered unhurriedly: "Anyone who comes to me with this kind of inexplicable information and asks me to order all bases to be on alert, I will not hesitate to reprimand him." ”

Sister Mengmeng's face did not change: "I insist." ”

The commander of the coalition forces was silent for a few seconds, and then suddenly laughed again: "But if it is said by 'Beidou Sword Li Yunmeng', I am willing to respect your suggestion." In this case, I will allow Advance to call in more computing resources to decode the ciphertext, and at the same time, all military bases on Mars will temporarily enter a secondary response state in case of emergency. ”

Sister Mengmeng's tense face also relaxed: "Okay, I'll speed up the decoding." ”

"Well, report to me immediately if there's any progress."

Biu, the wiring is disconnected.

Sister Mengmeng and Shi Tiezhu were secretly relieved. Either way, it's always a good idea to prepare. Even if it turns out to be a false alarm in the end, it is better than being caught off guard when the crisis comes.

Sister Mengmeng asked, "How much computing power does the Advance have left?" ”

The operator below replied, "There is still 12% redundancy in computing power. If some scientific research and computing projects are temporarily reduced, up to 32.4% of the computing power space can be freed up. ”

"That's enough."

When Sister Mengmeng secretly decoded, she only called less than 1% of the computing resources. Now that I've let it go, I'm more than twenty times faster.

"Call 20% of the computing power and start ciphertext decoding immediately!"

A lot of symbols flashed on a screen, like a waterfall of data pouring downward, and the decoding progress immediately accelerated a lot.

Shi Tiezhu breathed a sigh of relief.

He knows very well how strong the military really is. Once military resources are mobilized on a large scale, many problems will be solved.

The next step is to achieve quantum communication with the earth. As long as you can quickly interpret the content of the cipher, the clouds in front of you will disperse.

But at this moment, Shi Tiexin's eyes suddenly flashed, and he yelled at an operator in the corner: "Stop!" ”