Boston Key Party 2014

Task:

Pwning : 100

nobody cares about this service nc 54.218.22.41 4545

http://bostonkeyparty.net/challenges/emu-c7c4671145c5bb6ad48682ec0c58b831

Task:

Chisa and Arisu are trying to tell each other two halves of a very important secret! They think they're safe, because they know how cryptography works---but can you learn their terrible, terrible secret? They're available as services at 54.186.6.201:12346 and 54.186.6.201:12345 respectively.

http://bostonkeyparty.net/challenges/mitm2-632e4ecc332baba0943a0c6471dec2c6.tar.bz2

Task:

Xorxes is a hash collision challenge. The goal is to find a second preimage for the input string "Klaatubaradanikto". Submit it as the flag. UPDATE: It has been pointed out that there are multiple solutions. The flag is the one with md5sum '7179926e4253a0b405090df67f62c543'. (Use `echo -n FLAG | md5sum'.) UPDATE THE SECOND: The solution is short.

http://bostonkeyparty.net/challenges/xorxes-ad7b52380d3ec704b28954c80119789a.py