This would work (assuming all the lines are the way you specify).

use strict;
use warnings;

#grabs the line splits it into two parts and 
#puts in hash
my %hash = map { (split /\|/,$_)[0,1] } <DATA>;

#print the hash
foreach (keys %hash) { print "$_, $hash{$_}",$/;}

__DATA__
key1|value1|
key2|value2|
key3|value3|
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-enlil