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#!/usr/bin/perl | |||
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# This program generates passwords that: | |||
# | |||
# * are hard to guess | |||
# * will be displayed unambigously in any (normal) font | |||
# * will survive being passed through a bad fax machine | |||
# * has UPPER lower number and sign | |||
# | |||
# Too close: B8 cC g9 kK lI l1 oO O0 pP sS uU vV xX zZ ,. :; `' S5 | |||
# Causes problems in URLs: @/: | |||
# Causes problems in shell: ! " # $ & ( ) [ ] { } ? | < > \ * | |||
# SQL uses: % for wildcard | |||
# Hard to type: ^ ~ ¨ ¤ § ½ æ ø å Æ Ø Å | |||
# Never 2 same chars next to eachother. (--) is bad | |||
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my $pw; | |||
my @chars=split //, 'abdefhijmnqrtyADEFGHJLMNQRTY23467=+-'; | |||
do { | |||
$pw = ""; | |||
for (1..12) { | |||
do { | |||
# avoid double chars (such as --) | |||
$this = $chars[rand $#chars+1] | |||
} while($last eq $this); | |||
$last = $this; | |||
$pw .= $this; | |||
} | |||
} while (not($pw =~ /[A-Z]/ and | |||
$pw =~ /[a-z]/ and | |||
$pw =~ /[0-9]/ and | |||
$pw =~ /[^a-zA-Z0-9]/)); | |||
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print "$pw\n"; |