TJCTF2020 - Circles

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, crypto, cryptography, font

solves : 261

Points: 10

Written by jpes707

Some typefaces are mysterious, like this one - its origins are an enigma wrapped within a riddle, indeed.

Hint: To obtain the flag, you should find the font that was used to encode the message in the picture. If you Google the description of …

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TJCTF2020 - Is This Crypto?

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, crypto, cryptography, xor, binary, file

solves : 123

Points: 50

Written by KyleForkBomb

Is this crypto?

Hint: The message is entirely printable characters 

file.txt

We have a file with strange text inside:

גפעהדפ±ע‏��

We don't have any clue about this file and cipher used. CyberChef maybe can do some magic:

isthiscrypto.png

Oh! And it detects …


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TJCTF2020 - RSABC

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, cryptography, rsa, rsactftool, python

solves : 415

Written by boomo

I was just listening to some relaxing ASMR when a notification popped up with this.

???

Hint: It's easy as R-S-A! Wait.. 

We have this informations:

n=57772961349879658023983283615621490728299498090674385733830087914838280699121
e=65537
c=36913885366666102438288732953977798352561146298725524881805840497762448828130

Ok, it's RSA. The challenge name and the informations confirm it. We can …


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TJCTF2020 - Tap Dancing

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, crypto, cryptography, dance, morse

solves : 215

Points: 25

Written by agcdragon

My friend is trying to teach me to dance, but I am not rhythmically coordinated! They sent me a list of dance moves but they're all numbers! Can you help me figure out what they mean so I can learn the dance …

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TJCTF2020 - Titanic

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, cryptography, movie, md5, titanic

solves : 256

Points: 35 

Written by jpes707

I wrapped tjctf{} around the lowercase version of a word said in the 1997 film "Titanic" and created an MD5 hash of it: 9326ea0931baf5786cde7f280f965ebb.

We have all the informations to find the clear text:

  • A word from the Titanic movie script: (here)[https …

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TJCTF2020 - Typewriter

Posted on mar. 02 juin 2020 in CTF • Tagged with hack, learn, ctf, tjctf, 2020, crypto, cryptography, keymap

solves : 395

Points: 30

Written by jpes707

Oh no! I thought I typed down the correct flag for this problem on my typewriter, but it came out all jumbled on the paper. Someone must have switched the inner hammers around! According to the paper, the flag is zpezy{ktr_gkqfut_hxkhst_tyukokkgotyt_hoftqhhst_ykxoz_qxilrtxiyf}.

Hint …

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Pragyan 2020 - ASCII Sentence

Posted on mer. 26 février 2020 in CTF • Tagged with hack, learn, ctf, pragyan, cryptography, 2020, flagoverbeer, ascii, python

solves : 123

Decode this

8951116499911082102898878115975057102908657109985070102908786108885053110907210811910072108102908710451975182112885057105102816161

Since it's ASCII, we need to create correct value in order to process it.

import base64

decode = "8951116499911082102898878115975057102908657109985070102908786108885053110907210811910072108102908710451975182112885057105102816161"
asci = []

x = 0
while x < len(decode):
    if int(decode[x]) == 1:
        asci.append(chr(int(decode[x] + decode[x+1] + decode[x+2])))
        i = 3
    else …

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Pragyan 2020 - AskTheOracle

Posted on mer. 26 février 2020 in CTF • Tagged with hack, learn, ctf, pragyan, cryptography, 2020, python, padding, bruteforce, flagoverbeer

AskTheOracle (150pts)

Mr Robot has worked all night to find the Cipher "TIe8CkeWpqPFBmFcIqZG0JoGqBIWZ9dHbDqqfdx2hPlqHvwH/+tbAXDSyzyrn1Wf" then he faints of Overdose.You are left with a challenge to get the key to the database before EVIL CORP starts backing up the data.

nc ctf.pragyan.org 8500

P.S- After solving you …

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Pragyan 2020 - Encuéntralo si puedes

Posted on mer. 26 février 2020 in CTF • Tagged with hack, learn, ctf, pragyan, cryptography, 2020, morse, audio, pdfcrack, bruteforce, flagoverbeer

Encuéntralo si puedes (350pts)
Solved by: 12%

Luis is very fond of music. Recently he developed a keen interest in CTF challenges. He makes a challenge for yankee and asks him if he could break it and find the code from it. Help yankee to find the secret code.

The …

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Pragyan 2020 - Pandora

Posted on mer. 26 février 2020 in CTF • Tagged with hack, learn, ctf, pragyan, cryptography, 2020, sqli, injection, sqlmap, flagoverbeer

Solved by: 7%

First solvers: nguyendqn
Jake in pandora needs to save Naʼvi from Human invasion. But he is not sure human`s army base`s locations.
Help him find those location so that he can take them down before they start their move.

link: http://ctf.pragyan.org:14000 …

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