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PIN.pm  view on Meta::CPAN

# OR

  $pinset->pin($serial);	# undef $pass_through
    

=head1 DESCRIPTION

This module provides an interface to create crypto-strong PIN numbers
for applications such as calling cards that require a number that is
difficult to guess and that might convey hidden information.

It is based on templates, that define how the resulting PIN number
will be constructed by combining the following components:

=over

=item B<Pass through values>

This is represented in the template with the letter 'P'. It is copied
as is to the resulting PIN. Digits are passed to the template from