PACTF_2017: Hash Killer

Category: Points: 60 Description:

Qu’est que c’est? We were clearing out the old server and came across a really weird file…

Hint:

Did someone say MD5? And that last line seems different from the rest…

Write-up

Firstly, all the lines except the last one can be cracked as MD5, returning us decoded_hashes.txt. Looks like we have a hint regarding the last line, let's see.

8fc42c6ddf9966db3b09e84365034357 MD5 : the
c47d187067c6cf953245f128b5fde62a MD5 : word
424149e499a7cb738810dc0e537c8490 MD5 : 'AES'
0800fc577294c34e0b28ad2839435945 MD5 : hash
a2a551a6458a8de22446cc76d639a9e9 MD5 : is
8fc42c6ddf9966db3b09e84365034357 MD5 : the
3c6e0b8a9c15224a8228b9a98ca1531d MD5 : key

AES md5summed returns 76b7593457e2ab50befe2dcd63cf388f. Let's try making a Pythonic decrypter.

$ ./solve.py 
flag{w3_l0v3_3ncrypt10n}

Therefore, the flag is flag{w3_l0v3_3ncrypt10n}.

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