How did you get on with Challenge 5? We know we caught out at least one of you, because you took the time and trouble to tell us about it. We enjoyed the post so much we thought we should highlight it here:
https://www.cipherchallenge.org/forums/reply/98551
We really do like feedback, so please let us know what you think about the challenges. We read all the posts, even if we don’t publish them all!
