Is this the sort of thing you're after (uses rand and map). Note that it'll reuse values from the hash. Not every one is guaranteed to be re-input into the new hash:

use warnings;
use strict;

use Data::Dumper;

my %h = (
    a => 1,
    b => 2,
    c => 3,
    d => 4,
);

my @vals = values %h;

my %new = map {$_ => $vals[int(rand(@vals))]} keys %h;

print Dumper \%new;

[download]

Output:

$VAR1 = {
          'c' => 2,
          'a' => 4,
          'd' => 3,
          'b' => 1
        };

[download]

In reply to Re: Randomly reassign hash keys by stevieb
in thread Randomly reassign hash keys by cormanaz

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