Botan: src/rng/rng.cpp Source File

00001 /*
00002 * Random Number Generator Base
00003 * (C) 1999-2008 Jack Lloyd
00004 *
00005 * Distributed under the terms of the Botan license
00006 */
00007 
00008 #include <botan/rng.h>
00009 
00010 #if defined(BOTAN_HAS_AUTO_SEEDING_RNG)
00011   #include <botan/auto_rng.h>
00012 #endif
00013 
00014 namespace Botan {
00015 
00016 /*
00017 * Get a single random byte
00018 */
00019 byte RandomNumberGenerator::next_byte()
00020    {
00021    byte out;
00022    this->randomize(&out, 1);
00023    return out;
00024    }
00025 
00026 /*
00027 * Create and seed a new RNG object
00028 */
00029 RandomNumberGenerator* RandomNumberGenerator::make_rng()
00030    {
00031 #if defined(BOTAN_HAS_AUTO_SEEDING_RNG)
00032    return new AutoSeeded_RNG;
00033 #endif
00034 
00035    throw Algorithm_Not_Found("RandomNumberGenerator::make_rng - no RNG found");
00036    }
00037 
00038 }