Why do we need complex passwords when it only length that matters?
Even with 232 120 000 H/s, fastest algorithm(MD5) with 10 fastest GPU card, Radeon R9 295X2, taking only lower cases and numbers you would still need so many years to brute a 20 letter pass.
36^20 = 13367494538843734067838845976576/
232 120 000(H/s)/
31 536 000(years) = 1 826 126 448 263 156 years.
Even with 232 120 000 H/s, fastest algorithm(MD5) with 10 fastest GPU card, Radeon R9 295X2, taking only lower cases and numbers you would still need so many years to brute a 20 letter pass.
36^20 = 13367494538843734067838845976576/
232 120 000(H/s)/
31 536 000(years) = 1 826 126 448 263 156 years.