Also, as for how I cracked it, I had a program which XORed two arbitrary files, and when I ran it on multiple sets of plain/ciphers, I noticed that the result was the same. I had no clue how he was...
Type: Posts; User: XSquared
Also, as for how I cracked it, I had a program which XORed two arbitrary files, and when I ran it on multiple sets of plain/ciphers, I noticed that the result was the same. I had no clue how he was...
Aah. Xoring with a seeded random number generator. Not portable, unfortunately. I doubt I would have ever broken it (if you hadn't posted the encrypted source code), due to the fact that the RNG on...
I'm stumped at the moment, Dave. Any chance you could provide another couple cipher+plain combos (data of your choice)?
That's much trickier, Dave. Bastage.
The initial thread was basically him saying "break this" with an attachment on the post, no explanation/plaintext given. It as lost during the board's downtime/rollback, unfortunately. I've attached...
I honestly doubt I could do anything harder than this one by just looking at a piece of ciphertext. Given a number of plaintext/ciphertext combos, I may be able to crack something harder.
How I broke Queatrix' encryption:
I started by writing up a small program to do frequency analysis on varying chunk sizes. Since the size of the file (951 bytes) is only divisible by 3 and...