™.. Makerand - Online Linux Manual PageSection : 3
Updated : 2016-05-10
Source : perl v5.10.1
Note : User Contributed Perl Documentation

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NAMECrypt::Makerand − Perl extension for the truerand library

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SYNOPSIS​ use Crypt::Makerand; ​ $rand = Crypt::Makerand::trand32();

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DESCRIPTIONUses the truerand library to generate a random 32 bit number. The basic idea here is that between clock ‟skew” and various hard-to-predict OS event arrivals, counting a tight loop will yield a little (maybe a third of a bit or so) of ‟good” randomness per interval clock tick. This seems to work well even on unloaded machines. If there is a human operator at the machine, you should augment truerand with other measure, like keyboard event timing. On server machines (e.g., when you need to generate a Diffie-Hellman secret) truerand alone may be good enough.

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Exportable functions​ unsigned long trand32(void)

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

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SEE ALSO​perl (1). 0

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Johanes Gumabo

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