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annotate libtommath/bn_mp_exch.c @ 687:167fdc091c05

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Improve RNG seeding. Try to read from /dev/urandom multiple times, take input from extra sources, and use /dev/random when generating private keys
author Matt Johnston <matt@ucc.asn.au>
date Fri, 29 Jun 2012 23:19:43 +0800
parents 5ff8218bcee9
children 60fc6476e044
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1 #include <tommath.h>
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2 #ifdef BN_MP_EXCH_C
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3 /* LibTomMath, multiple-precision integer library -- Tom St Denis
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4 *
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5 * LibTomMath is a library that provides multiple-precision
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6 * integer arithmetic as well as number theoretic functionality.
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7 *
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8 * The library was designed directly after the MPI library by
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9 * Michael Fromberger but has been written from scratch with
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10 * additional optimizations in place.
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11 *
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12 * The library is free for all purposes without any express
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13 * guarantee it works.
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14 *
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15 * Tom St Denis, [email protected], http://math.libtomcrypt.com
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16 */
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18 /* swap the elements of two integers, for cases where you can't simply swap the
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19 * mp_int pointers around
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20 */
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21 void
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22 mp_exch (mp_int * a, mp_int * b)
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23 {
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24 mp_int t;
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26 t = *a;
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27 *a = *b;
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28 *b = t;
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29 }
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30 #endif
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32 /* $Source: /cvs/libtom/libtommath/bn_mp_exch.c,v $ */
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33 /* $Revision: 1.3 $ */
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34 /* $Date: 2006/03/31 14:18:44 $ */