no, check your math. number of characters required for 128 bit entropy password ... | Hacker News

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gruez on Aug 12, 2019 | parent | context | favorite | on: NULL license plate not such a bright idea

no, check your math.

number of characters required for 128 bit entropy password using alphanumerics: 21.49[1]. round off to 22

number of characters required for 128 bit entropy password using all printable characters: 19.5[2]. round off to 20.

22/20 = 110%

[1] https://www.wolframalpha.com/input/?i=solve+log_2(62%5Ex)%3D... (under "real solution", click on "approximate form")

[2] https://www.wolframalpha.com/input/?i=solve+log_2(94%5Ex)%3D...

ValleZ on Aug 12, 2019 [–]

There are about 138k printable characters, not 62.

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