1Crypt::DSA::Util(3) User Contributed Perl Documentation Crypt::DSA::Util(3)
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6 Crypt::DSA::Util - DSA Utility functions
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9 use Crypt::DSA::Util qw( func1 func2 ... );
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12 Crypt::DSA::Util contains a set of exportable utility functions used
13 through the Crypt::DSA set of libraries.
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15 bitsize($n)
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17 Returns the number of bits in the Math::Pari integer object $n.
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19 bin2mp($string)
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21 Given a string $string of any length, treats the string as a base-256
22 representation of an integer, and returns that integer, a Math::Pari
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25 mp2bin($int)
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27 Given a biginteger $int (a Math::Pari object), linearizes the integer
28 into an octet string, and returns the octet string.
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30 mod_exp($a, $exp, $n)
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32 Computes $a ^ $exp mod $n and returns the value. The calculations are
33 done using Math::Pari, and the return value is a Math::Pari object.
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35 mod_inverse($a, $n)
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37 Computes the multiplicative inverse of $a mod $n and returns the value.
38 The calculations are done using Math::Pari, and the return value is a
39 Math::Pari object.
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42 Please see the Crypt::DSA manpage for author, copyright, and license
43 information.
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47perl v5.8.8 2004-12-31 Crypt::DSA::Util(3)