I am assuming your mapping in the question is wrong, and should be 0=A, 1=B, 2=C... 9=J. If not, change it in the code. 
$var =~ tr/0-9/A-J/;

[download]
perldoc perlop and look for the tr// operator for more info.

In reply to Re: Simple Encryption question by Paladin
in thread Simple Encryption question by rman

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