oracular (3) Crypt::DSA::Util.3pm.gz

NAME

       Crypt::DSA::Util - DSA Utility functions

SYNOPSIS

           use Crypt::DSA::Util qw( func1 func2 ... );

DESCRIPTION

       Crypt::DSA::Util contains a set of exportable utility functions used through the Crypt::DSA set of
       libraries.

   bitsize($n)
       Returns the number of bits in the Math::Pari integer object $n.

   bin2mp($string)
       Given a string $string of any length, treats the string as a base-256 representation of an integer, and
       returns that integer, a Math::Pari object.

   mp2bin($int)
       Given a biginteger $int (a Math::Pari object), linearizes the integer into an octet string, and returns
       the octet string.

   mod_exp($a, $exp, $n)
       Computes $a ^ $exp mod $n and returns the value. The calculations are done using Math::Pari, and the
       return value is a Math::Pari object.

   mod_inverse($a, $n)
       Computes the multiplicative inverse of $a mod $n and returns the value. The calculations are done using
       Math::Pari, and the return value is a Math::Pari object.

AUTHOR & COPYRIGHTS

       Please see the Crypt::DSA manpage for author, copyright, and license information.