02-23-2012, 11:39 AM
36 ^ 8 = 2821109907456 combinations. if you gpu (like my hd6990) makes ~190 khash/s its 14847946 seconds -> 171 days. if you say chances are 50% percent you crack it before full keyspace was scanned, 85 days are left = ~3 months.
but, usually the key is not fully a-z 0-9, its just a-f 0-9. in this case cracking time reduces to 16 ^ 8 = 4294967296 combinations. so its done in ~6 days.
but, usually the key is not fully a-z 0-9, its just a-f 0-9. in this case cracking time reduces to 16 ^ 8 = 4294967296 combinations. so its done in ~6 days.