No algorithm can ever be harder to crack then trying all permutations of the key: in other words brute force. The purpose of any encryption algorithm is to make

No algorithm can ever be harder to crack then trying all permutations of the key: in other words brute force. The purpose of any encryption algorithm is to make it as close to impossible to crack it in any less time consuming way. One could argue that my algorithm is better then that because the plain text salts the algorithm, but that doesn't account for any potential guess work, or even an attacker trying to get a user to send a specific stream that would help crack the code.