Discover a good place to learn the CTF, the CTF training camp (http://ctf.idf.cn/) of the IDF laboratory.
Just contact the CTF, to play under the kind, AK. Nice and cool.
1. Morse code
Tick ticking, it keeps turning.
-- --- .-. ... .
Ticking, ticking, it's splashing.
-.-. --- -.. .
-->> The title is Morse code, search under "Morse code", found the Tick (.) Click (-) and the English alphabet comparison table:A·-
B -···
C -·-·
D -··
E ·
F ·· -·
G --·
H ····
I ··
J ·---
K -·-
L ·-··
M --
N -·
O ---
P ·--·
Q --·-
R ·-·
S ···
T -
U ·· -
V ··· -
W ·--
X -·· -
Y -·--
Z --··
Map:-- --- .-. ... .
M O RS E
-.-. --- -.. .
C O DE
so submit Wctf{morse CODE}, wrong. is not the space, and then submit Wctf{morsecode}, or wrong. to lowercase commits, yes. Answer:Wctf{morsecode} 2, ASCII code only\u5927\u5bb6\u597d\uff0c\u6211\u662f\u0040\u65e0\u6240\u4e0d\u80fd\u7684\u9b42\u5927\u4eba\uff01\u8bdd\ U8bf4\u5fae\u535a\u7c89\u4e1d\u8fc7\u767e\u771f\u7684\u597d\u96be\u3002\u3002\u0077\u0063\u0074\u0066\u007b\ U006d\u006f\u0072\u0065\u006d\u006f\u0072\u0065\u005f\u0077\u0065\u0069\u0062\u006f\u005f\u0066\u0061\u006e\ u0073\u007d
-->>\uxxxx, this is the Unicode encoding, the title is ASCII code XX, guessed test instructions: Converts Unicode code to ASCII code. I use Python to write a function to convert:
Import unicodedatadef unicode2ascii (data): Return unicodedata.normalize (' NFKD ', data). Encode (' ASCII ', ' ignore ') data = U ' \u5927\u5bb6\u597d\uff0c\u6211\u662f\u0040\u65e0\u6240\u4e0d\u80fd\u7684\u9b42\u5927\u4eba\uff01\u8bdd\u8bf4 \u5fae\u535a\u7c89\u4e1d\u8fc7\u767e\u771f\u7684\u597d\u96be\u3002\u3002\u0077\u0063\u0074\u0066\u007b\u006d\ U006f\u0072\u0065\u006d\u006f\u0072\u0065\u005f\u0077\u0065\u0069\u0062\u006f\u005f\u0066\u0061\u006e\u0073\ u007d ' Print unicode2ascii (data)
Run Result:, @!wctf{moremore_weibo_fans} Answer:Wctf{moremore_weibo_fans} 3. The simplest problemThis is definitely the simplest problem ever! @ Mighty Soul, Lord.have already told you the answer Oh!
-->> Intuition told me, to see the source.
Answer:Wctf{woldy_s_weibo}4, what?who can tell me what this is? What is the answer?
-->> once saw my classmate of a blog, a kind of technology called data steganography, such as the data hidden in the image of the code, hehe. using a hex viewer (I use HxD recommended in reverse engineering core principles) check the hexadecimal code of this image and find the answer from the corresponding ASCII code.
Answer:wctf{mianwubiaoqing__}5, the password is changed wrongOnce there was a bear child invaded a Web site database, found the administrator password, hand shake in the database modified a bit, now the password into a cca9cc444e64c8116a30la00559c042b4, the bear child is actually me! swelling do solve! Online, etc., very urgent.
-->> Look at this string of passwords, ultra-like usually with MD5 to hash the data after the string, calculate the number of characters, incredibly is 33, then I get to test instructions, originally ciphertext is 32, bear children hand shake added a bit. Violence, traverse the string to remove one of the characters, the MD5 decryption (previously seen HCTF report, know a website can be md5:http://cmd5.com/). traverse to this stringCCA9CC444E64C8116A30A00559C042B4, there is a solution: IDF Answer:WCTF{IDF} 6,-The day lone sword-Weibo-day Lone sword-classmate since participated in a HTCF league, was inside of a fencing problem, so the dung of the wall to study CTF, finally found that the IQ of the original person is really a gap, the same sword, why the gap is so big. So lonely sword students in the burnout under the establishment of a call CTF training Camp website, to help you improve fencing (in fact, the main purpose is for his micro Bo rose powder). So the question is, do you know--what is the Weibo ID of the lone sword?
-->> looking for someone.:--> IDF Lab Home-----team members--search for "Day Lone Sword" --
Answer:wctf{@, the omnipotent soul of the Almighty}
IDF-CTF-Kind
