oootp
>>> Run Many-Time Pad on the file and extract the key to use on the encrypted flag.
Crypto
Don’t chat too much about RSA!
>>> Steghide on a picture, AES ECB on the discussion and math to get the p and q of the public key to get the secret.
digital-talking
>>> Binary to anode 7 segment display
crypto-easy
>>> Analyse key for the first flag, then decrypt the second flag using AES CBC and IV.
tim3
>>> Time attack on password checker.