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6² geometric passboxotron

 (+4) [vote for, against]

Problem: You want a short, memorable password, but don't find the "horse battery staple" solution appealing (or you do, but can't think of anything other than "horse battery staple" as a key phrase).

Method:
1) Draw a grid containing 6 columns and 6 rows
2) Fill in the letters a - z and numbers 0 - 9 into the grid using the pattern of your choosing (I am rather fond of spirals, but you could try a Hilbert curve, or left-to-right, top- to-bottom, or alternating 3-spaces or whatever)
4) Decide on an encoding procedure (1 down, or 3 up, or "knight's move up- right, whatever works for you)
5) Letter by letter, encode your password using the method you decided on in 4)

So basically, you're taking the following information:
2) A pattern (for filling in your grid)
3) A pattern (for coding your word*)

And combining them to create a combination of letters and numbers (no tricky characters or upper-case usage here, consider adopting an optional capitalisation scheme as a 4th factor) in combination, the result is a procedure that is easy to remember, but tricky to brute-force.

* An alternative would be to create two 6² squares and use one to map onto the other - but this might take more paper to scribble-on in case you need to recreate the procedure somewhere.

 — zen_tom, Jun 02 2015

Horse Battery Staple https://xkcd.com/936/
As mentioned in the main text. [Vernon, Jun 02 2015]

Vigenère cipher https://en.wikipedi...igen%C3%A8re_cipher
a related old encryption scheme [notexactly, Jun 14 2015]

I always just use "chicken lawn mower".
 — MaxwellBuchanan, Jun 02 2015

That’s a bit euro-centric. What about a larger grid with all the mandarin characters on. Then I could choose a pattern to overlay the characters into the grid with (which need not be alphabetical, as the characters are not necessarily often presented in alphabetical order anyway). Then I position my starting password on it, which might be “password”, and end up with ma3 zhuang1ding4 ding4shu1ding1 (or &#39532; &#35013; &#35746; &#35330; &#26360; &#37336; ).
 — Ian Tindale, Jun 02 2015

 Yes, that works too, and by extension I suppose, any arrangement of glyphs would equally suffice - as long as you can ultimately type them (or their unicoded- values) into a password entry-box.

The downside would be the possibility of having to recreate those codes should you ever find yourself unable to remember the unicode values for &#35330;&#26360;&#27231;
 — zen_tom, Jun 02 2015

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