Reply To: The official Challenge 10 tips and hints thread
The text could be split into 5 groups of 650 characters, so the key would be 25 characters, which is slightly more doable (or 25 of 130, so a key of 5)
The text could be split into 5 groups of 650 characters, so the key would be 25 characters, which is slightly more doable (or 25 of 130, so a key of 5)