5 docs tagged with "xor"

There is a locked door in front of us that can only be opened with the secret passphrase. There are no keys anywhere in the room, only this .txt. There is also a writing on the wall.. "State 0 999, flag ends at state N, key length: one".. Can you figure it out and open the door?

I won't have have to worry about running out of entropy, I'm going to have my OTP generated forever with this new script!

I've hidden two cool images by XOR with the same secret key so you can't see them!

Solution

Who needs AES when you have XOR?