On a shell system, you can have a gateway 'suid' program that controls access to your application/module. You have to be careful about '-T'aint checking when you do this, though, to avoid being exploited. 
    #!/usr/bin/perl -wT

    use strict;
    use MyModule;   # Your important module(s)

    # Now do something as the suid user
    MyModule::DoSomething();

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Then set it to -rwsr-xr-x suid:     % chmod 4755 theprogram

In reply to Re^3: Hiding passwords in scripts... by tadman
in thread Hiding passwords in scripts... by suaveant

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