Everyone knows that banks are insecure. This one super secure and only allows only 20 transactions per session. I always wanted a million on my account.
Attachment: crypto90.zip

Alice wants to send Bob a confidential message. They both remember the crypto lecture about RSA. So Bob uses openssl to create key pairs. Finally, Alice encrypts the message with Bob’s public keys and sends it to Bob. Clever Eve was able to intercept it. Can you help Eve to decrypt the message?
Attachment: crypto60.zip

Description: I once took a nap on my keyboard. I dreamed of a brand new language, but I could not decipher it nor get its meaning. Can you help me?
Hint: Replace the spaces with either ‘{‘ or ‘}’ in the solution.
Hint: Interpreters don’t help. Operations write to the current index.
Attachment: rev80.zip

My friend sent me this file. He told that if I manage to reverse it, I’ll have access to all his devices. My misfortune that I don’t know anything about reversing :/
Attachment: rev60.zip

My friend keeps telling me, that real hackers speak assembly fluently. Are you a real hacker? Decode this string: “IVyN5U3X)ZUMYCs”
Attachment: rev50.zip

Someone sent me a file with white and black rectangles. I don’t know how to read it. Can you help me?
Attachment: misc60.zip

Can you read the barcodes?
Attachment: misc90.zip

My friend really can’t remember passwords. So he uses some kind of obfuscation. Can you restore the plaintext?
Attachment: misc50.zip

I really like Rubik’s Cubes, so I created a challenge for you. I put the flag on the white tiles and scrambled the cube. Once you solved the cube, you’ll know my secret.
Attachment: rev90.zip

Do you know format string attack ?
nc pwning.pwnable.tw 56026
binary
Hint:
%n is so powerful