Saturday 19 September 2015

[Write-up] CSAW CTF 2015 - Crypto notesy 100

10:03 Posted by Matnacian , , , No comments

notesy

100




The flag is not in the flag{} format.

I'm happy when I didn't spend too much time with this challenge. Poor you :v
We were given a link. Try some inputs and I can see it's just a substitute cipher.
And google for an alphabet english:
https://en.wikipedia.org/wiki/English_alphabet
(because I'm very lazy to fill in the input form).
ABCDEFGHIJKLMNOPQRSTUVWXYZ

UNHMAQWZIDYPRCJKBGVSLOETXF
Booom! Can't believe this is our flag :D


--- matnacian ---
--- ctf for beginners ---

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