Decryption process of University of Tokyo encrypted enrollment posters

I'm not as simple as you think. This is the ultimate technology home in Japan.

As an alumnus, please allow me to use well-versed and frequently-used proud texts (readers can follow the image in "Sakura" to make up their minds automatically), write a soft article for the alma mater to enroll students, and cheat school training: "Winning by quality and gaining by quality, cultivate national leaders and the backbone of all levels ". Therefore, you will never expand your enrollment. The number of places is limited, and the application speed is high.

This is an admission poster of the Research Section of the Department of love and technology at the University of Tokyo last year. Intelligence also works! This requires you to have extraordinary intelligence analysis capabilities and engineering background. For example, the landlord is actually Yu Zun-cheng. After Williams graduated from a technical secondary school, he went to Japan to read his doctor, a professional Mechanic, and took the dual-copy salary of China and Japan to reach Mission 5. In September 10 I made the first task to buy out the Japanese Finance Minister Panasonic Zhongyang http://www.baidu.com/s? Wd = % CB % C9 % CF % C2 % D6 % D2 % D1 % F3. I used to perform perfect training in the Golden Triangle, and it was very clean, like killing myself. In September 13, the second task was to extend the new Ambassador of the West Palace to a http://www.baidu.com/s? Wd = % CE % F7 % B9 % AC % C9 % EC % D2 % BB. I will continue to be an ordinary student here to learn good information, please forget my name, if you have to remember me, please call me a City Hunter.

In this case, both bin and CMU are difficult to compete. Colleges and universities IT male kneel and lick, all kinds of fantasies and obscenity, our east big soft sister a pair of antique dress, quiet and dignified, such a school girl, do you have? When you think about cute girls, I wonder if you have thought about it. The previous binary 01 string is not an ornament that uses the face to roll the keyboard, but does not mean it? One piece of liver is broken, and we can only read it to people who know it. Just like the logs written by Ben Taijun all the year round, they can be read as simple warm stories, as well as high-end black ones to fully view the reader's posture.

In fact, the essence of this figure is not the sister of the background. It is exactly the first 0101 large binary number. Are you excited when you see the great sticks and holes? I think many young people have already guessed that it contains information-no girl who is engaged in computer science, and either 1 or 0. Aha, after the joke, let's see what this 0101 really means.

First, the ocr software is used to convert the numbers on the image into text. There are a total of 26 lines of numbers, and there are 110 numbers in each line except 98 numbers in the last line, totaling 2848 numbers. Shenma? You said you copied it manually? Slot, even optical character recognition will not be used, you should stay in Tsinghua baresearch.

0001111110001011000010000000000000000000000000000000000000000000000000100000001101101101010100001100101101001110110000100100000000010100001111010101001100011110100001010101101010110101100000001110000000000011010100001101100001010001000100110110100011100010000101100011000100110001101011000100110000110100100110100110000011011000101110000001101001101010100101011110000111010001001101100111010110000000101100001111011101001011110111001011100011010110000001010010011000101110111111000000000011111111110000111000111101110000111000011110001100010110010011010000110010001001100100111100110010011100101110011111011110011110100100110111101111101110011111011111110101111100011111100000000110110000100001111011001000000110000101010010101101001001101011001100001001001000001000001010010100100001100011011000110010000110001101010110010001010101111001000101010010101100001100111100010011110111100001010010101111100100000000010100001110100100011000101011011000011001101000100100110111101111110100100010000100011000011100101110000100110010111001000010101000010111110001110011110100111110111001101101011010000000101110111101011101010110010010110000011011000010101111011010111010000111101101001110010110010110111001000111011011111111100001001111101111100111101111000011001101110000011101000010010010010000010101001011000110100001011000110001001101011011000011001110011010100100110010100100011111000001011000000010001001101101010101110011100000010011101011110110011001010101011001011010110111011111111010110000111010100100100110001111101011000010011100110110101010011110110101010001111100000111101000111101101000010101011101110101010011100100011101010001010001010000010101001011000110101101011000110000011100100101000001100010011000011000100011001011111110010110101001111001110110011110011000111100101110000101010101000110101101111010001000111001110100100001111110011111010101000110010101001100100011111110111110000001001110011110011101010100011011100110001001000101100101110100111110001011000010111110001010001001100011011011101001100100100111101101001011100000111100001110010010010001001110101101000111001001100101001101100001101100110000111111010010101000011010011000000111110100011000100001101010010110100110110110010100010100001010011100110101100001011100011110100001010010111001001101000010010000011010001101011111100010100101000010010001100001100011011011011111010000001001111011100110000001001110010010010110001000001011111110010110110110111000100000100010100000100001100001001110011101001000101000000110001110011000011101111100101000111101010000110100101001000110000010000100011110111100011010101001100011111101000011011101001000011011011000101011011100001011101110101111111101111001000010001010010110110110010011010111100000110111001010000001110011010101100001111011110010100000000010110111111110101010100011000010011100000110111110000000010000000000000000

First of all, the first idea must be ASCII encoding. Since we don't know whether it is big-endian or little-endian, we can try both of them. The result shows no meaningful strings. It makes no sense to remove non-Latin letters and decompress 26 possible texts with the Caesar password. It does not appear to be ASCII encoding.

Considering that the length of 2848 is a multiple of 8 or a binary file, big-endian and little-endian can also be read and written as binary files.
The output of big-endian is a gz compressed package. In fact, if you cannot see it, you can also lose the three bytes of the file header to google. If you directly use the file command in Linux, Isn't it silly that the technical content is too low?

Change the name to bin.gz and decompress the file named bin. Content:

\ CA \ FE \ BA \ BE \ 00 \ 00 \ 002 \ 00!
\ 00 \ 00
\ 00 \ 00 \ 00
\ 00 \ 00
\ 00 \ 00 \ 00 \ 00 \ 00 <init> \ 00

 

() V \ 00

 

 

Code \ 00

 

 

Main \ 00 ([Ljava/lang/String;) V \ 00 StackMapTable
\ 00 \ 00 \ 00
\ 00 \ 00 \ 00) w-aurlwtcniewo./-t. kjhltiypioe. o/kvru. fae \ 00
\ 00 \ 00 \ 00 hour ‑
\ 00­ \ 00 \ 00i \ 00 java/lang/Object \ 00 java/lang/System \ 00

 

 

Out \ 00 Ljava/io/PrintStream; \ 00 java/lang/String \ 00charAt \ 00

 

 

(I) C \ 00 java/io/PrintStream \ 00print \ 00

 

 

(C) V \ 00 \ 00 \ 00 \ 00 \ 00 \ 00 \ 00 \ 00 [1] \ 00 \ 00 \ 00 \ 00 \ 00 \ 00 \ 00
\ 00 \ 00 \ 00 \ 00 \ 00 \ 00 \ 00 * \ B7 \ 00 \ B1 \ 00 \ 00 \ 00 \ 00 \ 00 \ 00 \ 00 \ 00 \ 00
\ 00
\ 00 \ 00
\ 00 \ 00 \ 00 = \ 00

 

 

\ 00

 

 

\ 00 \ 00 \ 00!

 

 

=) \ A2 \ 00 \ B2 \ 00 [1]

 

 

H) p \ B6 \ 00

 

 

\ B6 \ 00 \ 84 [1] \ A7 \ FF \ E5 \ B1 \ 00 \ 00 \ 00 \ 00 \ 00 \ 00 \ 00 \ 00
\ 00 [1] \ FD \ 00 [1] \ 00 \ F9 \ 00 \ 00 \ 00 \ 00 \ 00

 

Students who are familiar with java should be able to see at a glance (maybe those who are familiar with java may not be able to) that this is a compiled class file (you can also use jd-gui for decompilation if you cannot understand it ), change the name to bin. class. The running prompt is Exception in thread "main" java. lang. noClassDefFoundError: bin (wrong name: I) and change it to I. class, run www. I .u-tokyo.ac.jp/fun/hikari-loveletter ~

In addition, text decryption of copyright information starts with 0x11c and sjis encoding.

Congratulations! As you can see in this step, you are qualified to directly give an interview without submitting any materials, but there is still a further journey from the final admission.

Information is conceived in letters and sounds,
And wherever sentiment and intention are found
Information is conceived in letters and sounds,
And wherever sentiment and intention are found
Poetry is formed when feelings rest within consonants and vowels,
Melody is born when emotion in harmony with each soul resounds.
Our desire to communicate is found at the core of the information we impart,
Likes or dislikes, black or white, 0 or 1, science or art
From our eyes and our ears-our whole bodies-each part,
And, most assuredly, from each one of our hearts.

What is a surprise for me to translate for you! What is TMD surprise! This TM is just a surprise! It's just a little bit of Literature and Art fresh. I don't know how many streets I know when I bring Douban. When it comes to time later, I will not talk about anything. Click next to go in. There is a song that my school girl sang on the poster. Her name is "め, by the way, I would like to help her publicize her album. All the composing orchestrations, production, and publishing are made by dongdasheng. This is the difference between the handsome and wealthy members of the Imperial University and general codoon, the technology house can also be so focused, romantic, and sexy. Here, Bai fumei got the lecture hall, got the kitchen, wrote the code, and found out the exception. He went to liubenmu building to practice google and despised the Goldman Sachs IT back office on the 50-tier floor, A part-time model may be an IT guru.

In the section-, it is obviously not Japanese, and it feels like machine synthesis. It must be the wrong way we open it. We can use audacity to cut it out and analyze it.
The essence of it has emerged! Put the recording in reverse mode (Do you want to listen to the opposite sound when you hear the illegal voice?) You can hear "Please listen too soon" (Thank you for listening) I was touched by my brother in the technology house, and my heart was melted. Did I cry out, and it echo back and forth with the end of the "くといな. Congratulations! No trial !! I advise the three dogs to kneel down to the technical content of Dongda and the freshness of literature and art.

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Next, let's take a look at the recruitment posters of the year before. The girl is as cute as ever.

10001110111001001100001011001000111010101100001011101000110010100100000010100110110001101101000011011110110111101101100001000000110111101100110001000000100100101101110011001100110111101110010011011010110000101110100011010010110111101101110001000000101001101100011011010010110010101101110011000110110010100100000011000010110111001100100001000000101010001100101011000110110100001101110011011110110110001101111011001110111100100101100001000000101010001101000011001010010000001010101011011100110100101110110011001010111001001110011011010010111010001111001001000000110111101100110001000000101010001101111011010110111100101101111100011101110010011000010110010001110101011000010111010001100101001000000101001101100011011010000110111101101111011011000010000001101111011001100010000001001001011011100110011001101111011100100110110101100001011101000110100101101111011011100010000001010011011000110110100101100101011011100110001101100101001000000110000101101110011001000010000001010100011001010110001101101000011011100110111101101100011011110110011101111001001011000010000001010100011010000110010100100000010101010110111001101001011101100110010101110010011100110110100101110100011110010010000001101111011001100010000001010100011011110110101101111001011011111000111011100100110000101100100011101010110000101110100011001010010000001010011011000110110100001101111011011110110110000100000011011110110011000100000010010010110111001100110011011110111001001101101011000010111010001101001011011110110111000100000010100110110001101101001011001010110111001100011011001010010000001100001011011100110010000100000010101000110010101100011011010000110111001101111011011000110111101100111011110010010110000100000010101000110100001100101001000000101010101101110011010010111011001100101011100100111001101101001011101000111100100100000011011110110011000100000010101000110111101101011011110010110111110001110111001001100001011001000111010101100001011101000110010100100000010100110110001101101000011011110110111101101100001000000110111101100110001000000100100101101110011001100110111101110010011011010110000101110100011010010110111101101110001000000101001101100011011010010110010101101110011000110110010100100000011000010110111001100100001000000101010001100101011000110110100001101110011011110110110001101111011001110111100100101100001000000101010001101000011001010010000001010101011011100110100101110110011001010111001001110011011010010111010001111001001000000110111101100110001000000101010001101111011010001110111001001100001011001000111010101100001011101000110010100100000010100110110001101101000011011110110111101101100001000000110111101100110001000000100100101101110011001100110111101110010011011010110000101110100011010010110111101101110001000000101001101100011011010010110010101101110011000110110010100100000011000010110111001100100001000000101010001100101011000110110100001101110011011110110110001101111011001110111100100101100001000000101010001101000011001010010000001010101011011100110100101110110011001010111001001110011011

A total of 27 rows, except the last row with 116 numbers, each row has 111 numbers, totaling 3002 numbers. An error occurred while trying to compress the end to an ASCII code or binary file. Try to convert to image, roughly. If you read it, don't think you can get an offer by scanning and adding friends to Dongda.

After careful observation, we can find that something has been repeated four times, so we used kmp for check and found that 1st-623rd characters have been repeated three times, there seems to be a bit of noise behind the fourth round. Regardless of it, deduct 1-623 first.

623 is not a multiple of 8, but 623 = 7*89. Considering that the first ASCII code must be 0, every 7 digits constitute a character and try to print it out. No results ...... Wait, if the first digit must be 0, it seems that the multiples of 8 in this string are all 0. In this case ...... Does it mean to add 0 at the end, and then this is regarded as little-endian? Still fruitless after trying ...... Wait, if the multiples of 8 are all 0, it may also be in the first place to add 0, and then it is regarded as big-endian. This result is returned.

Graduate School of Information Science and Technology, The University of Tokyo

Haha, unfortunately it's not my sister's contact information. This sister's clothes are called the "Twelve orders". They are an extremely elegant costume, not to mention that the price is enough for the coders to sell kidneys. Do you want to unbind the twelve orders of this sister, you have to decrypt the information to this level before the girl looks at you. Let's take a look at this link for details.

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This year's enrollment poster, the constant beauty program, and the decryption by Qifeng's sister + geek, precise marketing professionals capture nerd. I think this marketing can win the Cannes advertising festival award? This is how we went to Peking University and Tsinghua University to lie to an engineering male to work. This year we added a Shanghai Jiao Tong University, which is the top three Chinese universities. I know what you want most. Come to our school and try it. This TM is called an inspirational advertisement. It is said that young people deciphering this year's password can directly double the full prize + A Letter of Academician-level recommendation letter. In the future, any faculty member from any domestic and foreign universities will pick you up, and there will be a thousand people waiting for you to return home. Let's do it !!!

Clear poster address http://www. I .u-tokyo.ac.jp/edu/entra/poster_ja.shtml
Of course, most people cannot pass the first step. For example, if they do not understand shtml, they cannot save the original image as, and then they can only take screenshots.

If enough technical house, the last will get a string of passwords, admission address http://www. I .u-tokyo.ac.jp/fun/010101/index.html