Mysterious Masquerading Message.md

The OpenSSH private key is actually not a private key and is simply just base64.

We decode it to get a long useless message and 2 hex strings.

If we decode these hex strings we get,

ineedtoopenlocks and initialisation12

Decoding the binary gets us a long hex string.

Looking at initialisation, I immediately thought of AES. Since an IV is provided, we can assume it is AES-CBC, so I just used cyberchef to

decrypt and get the flag.

Flag: ractf{3Asy_F1aG_0n_aEs_rAcTf}