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. 2013 Aug 13;15(8):e161. doi: 10.2196/jmir.2366

Table 2.

Number of combinations of passwords of length up to 9 and maximum time to crack them now and in 10 years.

Size No. of combinations Time to crack now Time to crack in 10 years from now
25 9,53674E+13 1 day, 2 hours, 29 minutes, 27 seconds 1 minutes, 35 seconds
50 9,76563E+16 3 years, 35 days, 6 hours, 44 minutes, 10 seconds 1 day, 3 hours, 7 minutes, 36 seconds
60 6,04662E+17 19 years, 63 days, 9 hours, 36 minutes 6 days, 23 hours, 57 minutes, 42 seconds
75 5,63135E+18 178 years 207 days, 16 hours, 17 minutes, 51 seconds 65 days, 4 hours, 15 minutes, 51 seconds