Chapter 221: A Battle Without Gunpowder (2)
The sound of intensive keystrokes kept echoing in the server room, forming a rhythmic song, which showed that Liang Hu had gradually gotten better after warming up, and the speed of his typing of the letters entered per minute basically reached the highest level in usualThis is what Liang Hu uses to monitor his own traffic and the feedback received by military satellites in outer space.
Liang Hu has to do a lot of things, in fact, there are two points, the first must be to read the various numbers fed back on the right screen, in order to grasp the current progress and the other party's reaction, the second is to delete the invalid character permutations and combinations as much as possible, and try to guess the other keys in the ring table, this is the heaviest and most boring work, it doesn't have any standards to see the reaction of Liang Hu's brain in an instant, no matter how strict the training is, there is no way to replace such a hacking talent, electronic warfare, this kind of battle without gunpowder, who on both sides of the war is endlessThe more sensitive and familiar the "0" and "1", the more likely it is to achieve the ultimate victory.
For example, an electronic lock is set with a four-digit password, from 0000 to 9999, a total of 10,000 possibilities, because the password is not clear, you can only try from 0000, 0001, as long as you have patience, you can always find the correct one. However, the design of electronic locks also take this into account, they let the electronic lock automatically change the new password every once in a while, this time is very embarrassing for the person who is trying the password, because the new password may be in the combination of numbers that he has verified before that is wrong, if you continue to test along the original progress, it is likely that the test to the final 9999 combination has not succeeded, if you start all over again, such embarrassment will continue to occur in the next automatic password change, continue to repeat the scene of the previous waste。
For example, when someone sets a password, they like to use a familiar combination of numbers, and their birthday is September 10, then the password is 0910, the mantissa of the phone number is 0088, and the password is also the same number, and some habitually use 1234 or 8888...... Therefore, in the precious time of a password usage cycle, these combinations of numbers with the highest probability should naturally be put at the front to try their luck. Of course, the cryptographic system of military satellites is by no means so simple and can be explained clearly in a few sentences, and the information that Liang Hu wants to think about and judge is also vast, and he is not familiar with the programmers of Tianzhu Kingdom who wrote this system, so what he is doing now is to slowly find out the rules from the chaotic cipher combinations.
Liang Hu doesn't know how much time the other party has left for him, in addition to the military satellite will automatically change the password, the military engineer responsible for monitoring the status of the satellite at the ground base will also be aware of such frequent and large number of transmissions, once the alarm is triggered Liang Hu can not confront hundreds of closely coordinated engineers, especially the other party has the control of the satellite, only need to issue some special instructions, you can make the military satellite stop responding to any request, then Liang Hu can only give up helplessly, of course, once the other party does this, it will also take a huge risk, after all, this method is tantamount to admitting that his own failureThe fellow who gave the order would never have any good fruit to eat afterwards.
30 minutes, Liang Hu found about ten keys, this is not a jigsaw puzzle, as the scattered fragments are getting less and less and simpler, in fact, 128 keys may not all be taken out and used, maybe a set of passwords is only used in part of it, and when the new password group is replaced, other keys will be called, and these keys are not necessarily all different, the right amount of repetition can be misleading to the cracker, thereby increasing the difficulty of cracking. According to this progress, even if Liang Hu finds out all the 128 keys smoothly, it will take at least 24 hours or more, and if there are any twists and turns during the period, it will drag on for a longer time, Liang Hu doesn't think that the military of Tianzhu State will honestly watch themselves pry their corners.
Fortunately, Liang Hu has another killer feature to exploit, which is also a loophole found by the hacker group in the previous life to capture the military satellite of Tianzhu Kingdom. This photographed military satellite is produced in the Rakshasa country, the military equipment of this northern power has a very distinctive and significant feature, that is, to avoid too complicated things as much as possible, which is mainly because their own industrial strength is insufficient, and they have to use this method to cover up and make up for it.
For example, the MiG-29 fighter has a small aircraft mark on the dashboard, and there are a total of 12 small lights around it, representing 12 directions, which light is on represents which direction is dangerous, even the pilot who flies it for the first time can easily remember and understand, but the real trouble is that you don't know what this danger is, from the ground or from the air? Is it radar or missile? The distance between you and yourself is far or close? Pilots simply can't get more specific content from the instrument display, they can only guess by their own experience. There are also flight warning lights, which are the same lights used for engine fire and low flight altitude......
There are too many designs like this, and they are completely too numerous to mention, and the same is true of the military satellite that was bought by Tianzhu Kingdom, because it is an early product, it is slightly inferior in terms of performance, so the designers at that time set the password to be changed every four hours in order to ensure the security of the satellite, anyway, the satellite of the Rakshasa country is a separate communication with the military base, and it is completely possible to use special equipment to verify the password, so as to ensure the connection between the ground base and the outer space satellite, in this case, even if the password is changed every ten minutes, it will not affect the normal use。
However, this is not the case with the Stars and Stripes, whose military teams often have to borrow satellites to assist them when they go out to fight, so the frequency of password changes must not be too high. Under normal circumstances, the time for a mission is often compressed within a day and a half, so the time limit for changing the password of the military satellite of the Stars and Stripes is 36 hours, so that the signal soldiers in the military squad only need to bring a set of passwords plus a set of spare passwords, if it is according to the way of the Rakshasa country, the password alone will carry more than a dozen groups, and the frequent switching of passwords to reconnect to the satellite will greatly affect the combat efficiency.
The reason why the Stars and Stripes dared to do this was because they had another system to ensure security, and the Rakshasa Kingdom was not like this? The military of Tianzhu has a large number of military purchase contracts with the Stars and Stripes, and their software engineers have long been accustomed to the concept of using the military equipment of the Stars and Stripes, but for their own safety, the Stars and Stripes refused to sell the military satellites used to take pictures to the Tianzhu Kingdom, so that the latter had to buy them from the Rakshasa through a third party. When redesigning the security system, the military engineers of Tianzhu still followed the concept of the Stars and Stripes and did not fully understand the technology of the Rakshasa satellites, so that small feet and big shoes left loopholes that could be exploited.
It took Liang Hu three hours to successfully deduce the characters represented by the 31 keys, and as long as he relied on his guesswork to crack the efficiency, he deleted a large number of password combinations that were definitely useless by his intuition. Since the Tianzhu Kingdom failed to obtain the control system of the Rakshasa Kingdom, and only bought a "naked star", it was not even aware of the sensitive situation of a large number of transmissions between another base station and the satellite, if it was a military satellite of the Stars and Stripes Country, it would issue the lowest level of warning in 90 seconds at most, and Liang Hu had been going on for so long that it had already risen to the highest red alert level, so that the military went all out to start searching for the source of the signal.
"Toot toot! Toot toot!" An alarm finally sounded in the satellite ground control room of the Tianzhu State Military Base, and after Liang Hu's server group continuously attacked the military satellite in outer space for more than three hours, the high-intensity transmission greatly affected the normal communication of the Tianzhu State Military Base, and only then was the system issued an alarm. Several military engineers on duty looked at each other with very strange eyes, but they didn't know what was happening in front of them, because of the military technology of the Rakshasa Country, many different situations will use the same warning light, and you can only guess by experience if you want to know what is happening, and it is obvious that the engineers sitting here do not have such ability.
A young, hot-blooded engineer stood up and ran towards the lounge outside, and with a loud noise, he knocked down the chair behind him because of his excessive movement. The young engineer ignored this, and rushed to the door of the lounge in three steps and two steps, knocking hard a few times, but receiving no response, and kept knocking on the door until a few minutes later a tall officer reluctantly opened the door and asked him in the most stern tone why he was bothering himself. The young and enthusiastic engineer saw the female soldier with a half-exposed chest in the lounge through the gap next to the chief, he was stunned for a moment and then reported what happened in the control room, this abnormal situation immediately attracted the attention of the commander, so the latter closed the door and followed the engineer back to the control room.
Ten minutes later, the engineer in the satellite control room finally knew what the problem was, the military satellite in outer space seemed to have been interfered with something, so that it could not exchange information with the ground control room in time, under normal circumstances, it would pass back the photos taken at certain intervals, and the last exchange should have been completed thirty minutes ago, but unfortunately the signal flow was very slow so that the task could not be completed within the specified time, which may be a problem in a certain link, so the pre-set system issued an alarm。