random - How to generate password

I would like to generate a random password of a defined length which can easily be typed in with a standard keyboard.

As a start I tried the following:

SeedRandom["pass"];
StringJoin[RandomChoice[CharacterRange[33, 126], 10]
(* "=IP@7mbYcB" *)

Do you know other solutions?

Answer

A shorter formulation equivalent to your own code is:

FromCharacterCode @ RandomInteger[{33, 126}, 10]

"+(pCT4W#;T"

However quite a few places only accept alphanumeric passwords, and not all keyboards have the same easily accessible character sets. If we assume that your given example is sufficiently secure you need 94^10 ~= 5*10^19 unique passwords. This is easily accomplished by adding a single alphanumeric character as 62^11 ~= 5*10^19. Therefore I propose:

rnd =
  FromCharacterCode @ 
    RandomChoice[Join @@ Range[{48, 97, 65}, {57, 122, 90}], #] &;

rnd[11]

"liLC2RoA3cR"

Or five passwords at once:

rnd[{5, 11}]

{"suPwm0c7FxS", "CV3khXaowWS", "Lac9z1IVCwc", "gptfkp2GMwH", "HDhRuFPLxte"}

Comments

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