"Buckley Collum" <buckley@wavefront.wti.com> writes: For those who can determine crackability:
Recently a message was posted which included source for a chaos-based crypt routine. How does this compare to the one-rotor crypt routine which is found in /bin? I.e., Which one would be easier to crack, and why?
The rotor machine is harder to crack, and both are relatively easy. As it happens, the chaos-based one is the one I just posted about, broken shortly after it was posted with very small ciphertext-only. The rotor machine is broken with a program called cbw (Crypt-Breaker's Workbench), available all over the net and findable with Archie. It's straightforward, but I understand you need to work a bit at it, and it helps to have known plaintext. I haven't used it myself, and would welcome insight from people who have. The NSA version of the crypt (1) man page had an entry under bugs as follows: BUGS Uses a Hagelin encryption algorithm. Jim Gillogly Sterday, 29 Astron S.R. 1994, 22:38