10-28-2010, 09:51 AM
Implement LM is good idea because:
Maximal length is 7 characters and can use only upper case alphabet(can calculate any combination of real-time)
Calculate RT in gpu is possible, but if use lm-frt-cp437-850 charset (some national characters), RT is very big. If calculate byte character RT is very very very big (I find average 2% password from national charset)
RT can use only for limited number of hash, because cryptoanlysis time is ascertained (1 min for one hash (dependent on the length of chain), 2000 min for 2000 hash)
But LM use DES... DES is not implemented
Maximal length is 7 characters and can use only upper case alphabet(can calculate any combination of real-time)
Calculate RT in gpu is possible, but if use lm-frt-cp437-850 charset (some national characters), RT is very big. If calculate byte character RT is very very very big (I find average 2% password from national charset)
RT can use only for limited number of hash, because cryptoanlysis time is ascertained (1 min for one hash (dependent on the length of chain), 2000 min for 2000 hash)
But LM use DES... DES is not implemented