1Makerand(3)           User Contributed Perl Documentation          Makerand(3)
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NAME

6       Crypt::Makerand - Perl extension for the truerand library
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SYNOPSIS

9         use Crypt::Makerand;
10         $rand = Crypt::Makerand::trand32();
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DESCRIPTION

13       Uses the truerand library to generate a random 32 bit number.
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15       The basic idea here is that between clock "skew" and various hard-to-
16       predict OS event arrivals, counting a tight loop will yield a little
17       (maybe a third of a bit or so) of "good" randomness per interval clock
18       tick.  This seems to work well even on unloaded machines.  If there is
19       a human operator at the machine, you should augment truerand with other
20       measure, like keyboard event timing.
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22       On server machines (e.g., when you need to generate a Diffie-Hellman
23       secret) truerand alone may be good enough.
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25   Exportable functions
26         unsigned long trand32(void)
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AUTHOR

29       The truerand library was developed by Matt Blaze, Jim Reeds, and Jack
30       Lacy. Copyright (c) 1992, 1994 AT&T.  This Perl extension was created
31       by Mark Cox, mjc@redhat.com, March 2001.
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SEE ALSO

34       perl(1).
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38perl v5.12.0                      2010-06-01                       Makerand(3)