Editing Random password generator (section)

==Mechanical methods==
Yet another method is to use physical devices such as [[dice]] to generate the randomness. One simple way to do this uses a 6 by 6 table of characters. The first die roll selects a row in the table and the second a column. So, for example, a roll of 2 followed by a roll of 4 would select the letter ''"j"'' from the [[transposition cipher#Fractionation|fractionation]] table below.<ref>Levine, John R., Ed.: ''Internet Secrets'', Second edition, page 831 ff.  John Wiley and Sons.</ref> To generate upper/lower case characters or some symbols a coin flip can be used, heads capital, tails lower case. If a digit was selected in the dice rolls, a heads coin flip might select the symbol above it on a standard keyboard, such as the '$' above the '4' instead of '4'.
:{| class="wikitable"
!
|''1''||''2''||''3''||''4''||''5''||''6''
|-
|''1''
! a
! b
! c
! d
! e
! f
|-
|''2''
! g
! h
! i
! j
! k
! l
|-
|''3''
! m
! n
! o
! p
! q
! r
|-
|''4''
! s
! t
! u
! v
! w
! x
|-
|''5''
! y
! z
! 0
! 1
! 2
! 3
|-
|''6''
! 4
! 5
! 6
! 7
! 8
! 9
|}